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Homepage Archive - February 2018 (page 2)

These archive pages are provided in order to make it easier for you to find items that you remember seeing on the RF Cafe homepage. Of course probably the easiest way to find anything on the website is to use the "Search RF Cafe" box at the top of every page.

Homepage Archive Pages

2018:  Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2017:  Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
2016:  Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec

See Page 1 | 2 | 3 of the February 2018 homepage archives.

Tuesday 20

Bliley Oscillators Featured in Erie's Local Newspaper

Bliley Oscillators Featured in Erie's Local Newspaper - RF CafeBliley Technologies has been manufacturing oscillators and crystals in Erie, Pennsylvania, since 1930. That's pretty amazing. Bliley's 64,000 square foot facility is only a few miles from my home. The Erie Times-News published a feature article on them in today's edition that has some photos from inside the plant. Note the stack of vintage-looking test equipment on the benches in the background (high-res). Despite its rather run-down appearance, Erie and the surrounding area is home a lot of high-tech industries including plastics, electronics, metal plating, industrial electrical equipment, and medical paraphernalia. The crime and cost of living are low here ...

ConductRF Low PIM RF Cables for DAS and Cellular

ConductRF Low PIM RF Cables for DAS and Cellular - RF CafeConductRF provides 3 styles of solution for DAS applications in Stadiums, Malls, Campuses, Hotels and more. Straight & R/A Low PIM Connectors are available for 7/16, N, SMA, QMA, 4.1/9.5 and 4.3/10 interfaces. We also offer Low PIM Adapters and PIM Test Cables for all these series. Utilizing ConductRF's new Low PIM Direct Solder Attachment Connectors, we provide high performance solutions for Low PIM interconnect including Straight, Right Angle, Bulkhead and Panel attachment. Performance better than -155dBc is validated through 100% testing ...

Fastest Electronic Device: Josephson Junction

Josephson Junction - Fastest Electronic Device, May 1973 Popular Electronics - RF CafeThe Josephson effect was predicted in 1962 by British physicist Brian David Josephson. It postulated the possibility of a resistance-less path for electrical current across an extremely thin insulator sandwiched between two superconductors. Dr. Juri Matisoo, of IBM, is credited with building the first Josephson junction switch in 1967, demonstrating sub-nanosecond switching times. Back in the day, superconducting materials, like graphene, were resources available only to well-funded research establishments like major corporations, universities, and government facilities. Now, anyone with an interest can order both ...

Anatech Electronics Newsletter for February 2018

Anatech Electronics Newsletter for February 2018 - RF CafeAnatech Electronics, a manufacturer of RF and microwave filters, has published its February newsletter. In it, Sam Benzacar writes in "The Magic in Sprint's Magic Box" about how Sprint, which "has always been the Number Four wireless carrier," is surreptitiously catching up because of the widespread distribution of its personal cell extenders. Sam has a lot of insight into the wireless business through decades of keeping his finger on the pulse of the industry, and has written much about it. These monthly newsletters always provide good tidbits you likely won't find elsewhere ...

eCall Conformance Testing Application Note

eCall Conformance Testing Application Note - RF CafeRohde & Schwarz has published this application note on eCall. "Emergency Call (eCall) is a service provided in Europe with the goal of reducing response times for acci- dents or other emergencies on the roadways. This application note briefly describes the technology behind eCall and presents conformance tests for eCall using the R&S ® CMW500 RF tester and the R&S ® SMBV100A vector signal generator. A Test software for eCall makes it quick and easy to perform these tests with the GSM or WCDMA wireless communications standard. It also shows a test solution for GNSS performance tests for eCall using ..."

Bluetooth, in Its Prime, Turns 20

Bluetooth, in Its Prime, Turns 20 - RF Cafe"Back in 1998, who would've predicted the wireless technology's current ubiquitousness? Can you believe it? Bluetooth is 20 years old. My, my, how time flies. Who would have thought back in 1998 that this nascent technology would become an important part of our lives? Today BT is everywhere. Go ahead and count up the number of BT radios you use every day. Be amazed. Taking inventory, I determined today that I must own about a half-dozen BT radios. It appears in our smartphones, our hands-free ..."

Monday 19

KR Electronics Intros 1208 MHz Surface Mount Lowpass Filter

KR Electronics Intros 1208 MHz Surface Mount Lowpass Filter - RF CafeKR Electronics has released part number 3337+, which is a 1208 MHz lowpass filter. The filter is a selective elliptic type filter. The stopband starts at 1292 MHz and is maintained to >6 GHz. The filter is supplied in a miniature surface mount package measuring 0.20" x 0.30" x 0.18". Other frequencies and bandwidths are available. Data sheets are available ...

RIGOL Announces New RSA5000 Real-Time Spectrum Analyzer

RIGOL Announces New RSA5000 Real-Time Spectrum Analyzer - RF CafeRIGOL Technologies announces a significant addition to its portfolio of RF Test Instrumentation with the introduction of the New RSA5000 Real-Time Spectrum Analyzer. The RSA5000 combines the power of a high performance swept spectrum analyzer with superior Real-time performance unmatched in this product category. Available in 3.2 GHz and 6.5 GHz models all RSA5000 Series Analyzers provide Resolution Bandwidth (RBW) down to 1 Hz, a noise floor as low as ...

Tunnel Diodes

Tunnel Diodes, July 1969 Electronics World - RF CafeA decade after tunnel diodes were first invented by Nobel Laureate Leo Esaki, grand plans for the unique device never played out. Predictions included its use for computer solid state memories to replace magnetic core arrays. Tunnel diodes benefitted from the aura surrounding their exploitation of the quantum mechanical tunnelling phenomenon, which had a futuristic ring to it. Conventional diodes, having a relatively wide depletion region, require the current carriers (electrons and holes) to overcome a potential hill in traveling from the valence band to the conduction band of energies. Since high doping levels are used in the tunnel diode, a narrow depletion region is formed at the junction. This allows electrons ...

Grounding and Bonding for the Radio Amateur

Grounding and Bonding for the Radio Amateur - RF CafeOn many occasions in both the lab and on installed equipment I have run into "unexplainable" problems of signal leakage and/or crosstalk that ended up being poor ground issues. Ground loops can be particularly frustrating. This new book written by the highly experienced and regarded H. Ward Silver, with degrees from both universities and The School of Hard Knocks, will be a valuable resource for your own situations. A mere $23 investment could be invaluable ...

Triad RF Systems Intros TA1007 General Purpose Broadband Amplifier

Triad RF Systems Intros TA1007 General Purpose Broadband Amplifier - RF CafeTriad RF Systems announces their new TTA1007 is a 500 - 2800 MHz, 5 W Amplifier designed for use in many general purpose applications where a small size and light weight are preferable. This amplifier supports any signal type and modulation scheme, including 3G, 4G, WLAN, OFDM, DVB, and CW/AM/FM. This class A GaAs module is designed for both military and commercial applications. It is capable of supporting any signal type and modulation format, including but not limited to 3-4G telecom, WLAN, OFDM, DVB, and ...

1.25 Gbps Wi-Fi for Tube Trains

1.25 Gbps Wi-Fi for Tube Trains - RF Cafe"A mobile hotspot network will deliver 1.25 Gbps WiFi to subway customers allowing them to stream HD videos without interruption while underground, thanks to a newly-developed mm-wave wireless backhaul technology. The first commercial service using this technology will debut on the Seoul subway system later this year. The technology was developed by ETRI, Korea's Electronics and Telecommunications Research Institute The network transmits ..."

Sunday 18

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines February 18

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines February 18, 2018At least 10 clues with an asterisk (*) in this technology-themed crossword puzzle are pulled from this past week's (2/12 - 2/16) "Tech Industry Headlines" column on the RF Cafe homepage (see the Headline Archives page for help). For the sake of all the avid cruciverbalists amongst us, each week I create a new technology-themed crossword puzzle using only words from my custom-created related to engineering, science, mathematics, chemistry, physics, astronomy, etc. Enjoy ...

Friday 16

New Device Could Drive MicroLED Displays, Li-Fi

New Device Could Drive MicroLED Displays, Li-Fi - RF Cafe"The gallium-nitride HEMT-LED lets voltage control light, replacing typical LED support circuitry A new device could make upcoming microLED displays easier to engineer and visible light communications systems, like LiFi, faster. As IEEE Fellow Kei May Lau sees it, the problem with conventional LEDs, which are current controlled devices, is that turning them on and off rapidly to control brightness or using them for Li-Fi takes careful engineering and a bunch of circuitry. 'Most IC designers would rather work with voltage control device, but LEDs are ..."

Breakthrough in Controlling Light Transmission

Breakthrough in Controlling Light Transmission - RF Cafe"Operation of modern-day technology requires an ever-increasing use of broadband frequency signals. This, in turn, has grown the demand for reliable, efficient methods of signal transmission that prevent interference and are more efficient in their use of the scarcely available frequency spectrum. These requirements are constrained, however, by reciprocity - a law of physics that forces the transmission of light to be identical in opposite directions. In past decades, scientists and engineers have ..."

Do You Know Your DC Circuits?

Do You Know Your DC Circuits?, May 1973 Popular Electronics - RF CafeA series of three articles appeared in 1973 issues of Popular Electronics that conducted a high-level review - or introduction if you've never seen it before - of DC circuit analysis. In this first installment, Professor Arthur Seidman, of the Pratt Institute, covers a variety of subjects starting with direct current (DC) circuit theory. Ideal current and voltage sources, units and notations, Ohm's law, Kirchhoff's law, resistors, capacitor and inductor charge and discharge curves, series and parallel circuits, power calculations, conductance, and other good stuff is covered. There is even (gasp) a bit of calculus presented ...

JFW Intros 40 GHz Matrix Switch for SATCOM or Wireless 5G Signal Routing

JFW Industries Intros 40 GHz Matrix Switch for SATCOM or Wireless 5G Signal Routing - RF CafeJFW Industries announces the availability of Model 50MS-367 2.9MM is a 4 X 4 Blocking Matrix Switch operating DC-40 GHz with 50 Ohm, 2.9mm female connectors. This unit is remotely controlled via Ethernet or RS-232, and it utilizes our 3.X.X firmware command set. All unused input and output ports are self-terminating at 50 Ohms, and the current IP settings and serial baud rate are displayed on the front panel which can be updated using ...

Saelig Introduces Sol Chip Saturn802 Solar Energy Harvester ICs

Saelig Introduces Sol Chip Saturn802 Solar Energy Harvester ICs - RF CafeSaelig has introduced the patented Sol Chip Saturn802 Energy Harvester IC - a unique photovoltaic (PV) cell which can produce output voltage levels of 0.75 V, 1.5 V, 2.25 V, 3.0 V, 4.5 V, and 9 V, which existing solar cells cannot do. The maximum power which can be obtained in full daylight is around 10 mW, or 55 uW in office lighting, so the Saturn802 IC is targeted at low-power applications. The size of the die is approximately 1 cm by 1 cm, and the stable voltage levels are available from separate pins of the device. The IC can be used with or without a back-up ...

Mass Production of New Class of Semiconductors Closer to Reality

Mass Production of New Class of Semiconductors Closer to Reality - RF Cafe"Two Waterloo chemists have made it easier for manufacturers to produce a new class of faster and cheaper semiconductors. The chemists have found a way to simultaneously control the orientation and select the size of single-walled carbon nanotubes deposited on a surface. That means the developers of semiconductors can use carbon as opposed to silicon, which will reduce the size and increase the speed of the devices while improving their battery life. 'We're reaching the limits of what's physically possible with ..."

Thursday 15

Atomic Radiation: Measuring Techniques

Atomic Radiation: Measuring Techniques, July 1969 Electronics World - RF CafeThis is Part 3 of a series of articles on atomic radiation that appeared in Electronic World magazine in 1969. It deals with measurement techniques and equipment. Shippingport Atomic Power Station, the first full scale nuclear power plant in the U.S., went operational in 1957. It marked the dawn of a new era of electric power generation that was filled with grandiose predictions of limitless, non-polluting, dirt cheap power. Everything was going to be powered by electricity - air heating and cooling, lighting, automobiles, water heating. Atomic power was going to be a figurative and almost literal beating of swords into ploughshares as the destructive energy ...

Scientists Observe Nanowires As They Grow

Scientists Observe Nanowires As They Grow - RF Cafe"At DESY's X-ray source PETRA III, scientists have followed the growth of tiny wires of gallium arsenide live. Their observations reveal exact details of the growth process responsible for the evolving shape and crystal structure of the crystalline nanowires. The findings also provide new approaches to tailoring nanowires with desired properties for specific applications. The scientists, headed by Philipp Schroth of the University of Siegen and the Karlsruhe Institute of Technology (KIT), published ..."

Flann Microwave to Boost Bodmin Workforce by 10%

Growing Orders Lead Flann Microwave to Boost Bodmin Workforce - RF CafeA growing order book and plans for future development of the business means leading microwave engineering company Flann Microwave is to increase its workforce in Bodmin, Cornwall, UK, by 10%. With a current team of 60 based in Bodmin, Flann has grown over six decades to secure a global reputation and market leading position in the design and manufacture of precision microwave communications equipment, for example, in radar and to allow internet and mobile data to be carried between mobile phone ...

Tech-Themed Comics

Electronics-Themed Comics, April 1969 and May 1969 Electronics World - RF CafeAre you old enough to remember when Reader Service Cards were inserted into the binding of magazines? One of these circa 1969 tech-themed comics has the husband anxiously telling his wife to hurry and send in a Reader Service Card for his radio system that was spewing parts. The fact is Reader Service Card, May 1969 Electronics World - RF Cafethat was not the purpose of Reader Service Cards; they were for getting product information, not for requesting repairs or replacement parts. Reader Service Cards were the old world version of website URLs and QR  scan codes ...

Making the Most of PCB Materials for 5G Microwave and mmWave Amps

Making the Most of PCB Materials for 5G Microwave and mmWave Amps - RF CafeBy Rogers Corporation, Microwave Journal magazine. "Millions of cell phones trying to connect voices and download unimaginable numbers of files worldwide point to the inevitability of Fifth Generation (5G) wireless communications networks. 5G is coming, and it will require the right circuit materials for many different types of high-frequency circuits, including power amplifiers (PAs). 5G may represent the latest and greatest in wireless technology, but it will be challenging to design ..."

HINODE Captures Record-Breaking Solar Magnetic Field

HINODE Captures Record-Breaking Solar Magnetic Field - RF Cafe"Astronomers at the National Astronomical Observatory of Japan (NAOJ) using the HINODE spacecraft observed the strongest magnetic field ever directly measured on the surface of the Sun. Analyzing data for 5 days around the appearance of this record breaking magnetic field, the astronomers determined that it was generated as a result of gas outflow from one sunspot pushing against another sunspot. Magnetism plays a critical role in various solar phenomena such as flares, mass ejections, flux ropes, and coronal heating. Sunspots are areas of concentrated magnetic ..."

Wednesday 14

Amateur Radio Call Sign Grant Date Investigation

Amateur Radio Call Sign Grant Date Investigation - RF CafeHave you ever started a relatively simple investigation into a trivial matter, only to find yourself going down the metaphorical "rabbit hole" even after finding the original answer? Such was the case for me when someone sent me an e-mail with a signature that included his amateur radio call sign. The first three characters, KB3, matched mine and that got me wondering on what date his call sign was granted compared to mine. Let us say for example* the writer's call sign was KB3PGM and mine is (actually) KB3UON. I looked them up in the FCC's ULS self-serve license ...

Opening up Bandwidth for Visible Light Communication Technology

Opening up Bandwidth for Visible Light Communication Technology - RF Cafe"University of New Mexico and University of California Santa Barbara in the USA have been studying the effect of crystal orientation on the modulation bandwidth of indium gallium nitride (InGaN) light-emitting diodes (LEDs). In particular, the researchers sought high bandwidth at lower current injection where the efficiency of InGaN LEDs is higher, reducing 'droop' effects. The non-polar m-plane (10-10) orientation was found to have the largest 3 dB (half-power) bandwidth, with a value of more ..."

Mini-Circuits February 2018 News & Product Highlights

Mini-Circuits February 2018 News & Product Highlights - RF CafeMini-Circuits announces the availability of four new devices in its lineup of RF and microwave components. Included are a high pass filter with a passband of 8 to 24 GHz, an ultra-high dynamic range MMIC amplifier matched to 50 Ω from 30 MHz to 2 GHz, an absorptive solid state SP4T switch controlled by USB and I2C connection, and an  LTCC band pass filter having a pass band from 4620 to 6640 MHz ...

Mac's Service Shop: Modules and the Technician

Mac's Service Shop: Modules and the Technician, January 1973 Popular Electronics - RF CafeThe transition from vacuum tubes to semiconductors, and from black and white to color televisions was in full swing by 1973. Accompanying the change in components was a re-thinking of the most effective and profitable method of manufacturing and servicing the new equipment. Modularization was thought to be key to future success even though production costs were slightly higher. Reliability improvements were already reducing the need for service calls and highly trained technicians who could troubleshoot failures down to the component level. Swapping out suspect modules with known-good modules, in Mac's words, results in "a quickly trained module swapper who knows only 'how' and not ..."

Achieve Mission Success for Small Satellites

Achieve Mission Success for Small Satellites - RF CafeByRob Rutkowski, Microwaves & RF magazine. As small satellites become more prevalent, the GPSDO can function as a timing solution to enable successful missions. This post explains the importance of timing before diving into GPSDOs. "Small satellites have grown dramatically over the past decade—and they are still growing fast and furiously. In this post, you'll learn about how to achieve mission success for satellites and how GPS disciplined oscillators (GPSDOs) can do the trick. A Growing Space The initial surge of small satellites has been attributed to the curiosity of R&D. Much of this ..."

Joseph "Pat" Dunagan Inducted into the Radar Tech Hall of Fame

Joseph "Pat" Dunagan 55th CBCS - RF CafePlease welcome Joseph "Pat" Dunagan to our exclusive list of former and current USAF radar techs. Pat is the first officer amongst us, so that unofficially makes him the ranking member on the page - not including 5CCG commander Col. John Kopsick, who did not actually maintain equipment. Along with time in the regular Air Force, he also did time as Chief of Maintenance in the Reserve 55th CBCS mobile combat outfit at Robins AFB where I was stationed. He had responsibility for MPN-13/14 and TPN-19 radars ...

Clocking Electrons Racing Faster Than Light in Glass

Clocking Electrons Racing Faster Than Light in Glass - RF Cafe"Living life in the fast lane can be tremendously exciting, giving us the 'time of our lives' but how long does it really last? Experiments at the Tata Institute of Fundamental Research (TIFR), Mumbai have answered this question for a bunch of electrons traveling faster than light (fasten your seatbelts!) through a piece of glass. This study, done in collaboration with the Rutherford Appleton Laboratory in the UK and Centre for Intense Laser Studies and Applications (CELIA) in France has appeared ..."

Tuesday 13

Comparing Narrowband and Wideband Channels

Comparing Narrowband and Wideband Channels - RF CafeBy Jack Browne, Microwaves & RF magazine. Narrowband and wideband communications channels make use of available bandwidth in different ways—so employ them according to the requirements of a particular application. "Bandwidth is limited at all frequencies. This holds true whether we're discussing those in the kilohertz range used for amplitude-modulated (AM) radio broadcasting; microwaves and millimeter waves for commercial and military radar systems; or those frequencies bands with the shortest-wavelength electromagnetic (EM) ..."

Please Welcome Rigol Technologies As an RF Cafe Supporter!

Rigol Technologies - RF CafeRigol's product line includes spectrum analyzers and RF signal generators, digital and mixed signal o-scopes, arbitrary waveform generators, sensitive measurement products, and data acquisition systems. Their test solutions combine superior product performance, quality, and advanced product features; all delivered at extremely attractive price points. Applications include technical education, WiFi integration, EMC, and manufacturing. Rigol delivers unprecedented value for your investment, reduced overall cost of test, and help speed time to completion of designs or projects ...

Active Filters

Active Filters, April 1969 Electronics World - RF CafeWhen I first began designing circuits in the 1990s using active filters, the upper frequency was limited to a few tens of kHz because of the gain-bandwidth product of the available amplifiers. That made them useful in baseband circuits, but that was about it. There were also issues with the noise figure and intercept points and intermodulation product levels. Today, you can get fully integrated and programmable active filters which operate at tens of MHz and beyond, and with much better RF-type specifications. That makes them useful in low intermediate frequency (IF) circuits as well as at baseband. BTW, this article is one of about ten dealing with filter types in ...

EDI CON China 2018 Announcement

EDI CON China 2018 Announcement - RF CafeEDI CON China 2018, a conference that brings together engineers working on high-frequency analog and high-speed digital designs, taking place March 20-22, 2018 at the China National Convention Center (Beijing, China), announces registration is now open and the technical program is now live at www.ediconchina.com. In its sixth year, EDI CON China 2018 includes technical conference sessions as well as workshops, panels, keynotes, poster sessions, and demonstrations from industry leading exhibitors in the RF, microwave, and high-speed digital industries ...

CMOS Wireless IC Transmission Speeds of 120 Gbps

CMOS Wireless Transceiver Chip Achieves Wireless Transmission Speeds of 120 Gbps - RF Cafe"In an effort to further increase the capacity of wireless equipment, Tokyo Institute of Technology (Tokyo Tech) and Fujitsu Laboratories Ltd. have developed a CMOS wireless transceiver chip that can process signals at high speeds across a broad range of frequencies, from 70 to 105 GHz, using their own bandwidth-increasing technology. With these developments, they succeeded in achieving wireless transmission speeds of 120 gigabits per second (Gbps), the fastest in the world. There has been an increase in research and development activities with the aim of developing ..."

Axiom Test Equipment New Year 2018 Specials

Axiom Test Equipment February 2018 Specials - RF CafeWhy rent test equipment from Axiom? Get test equipment without a capital budget. Tax benefits - the expense of a rental can be deducted immediately. Protects you against product obsolescence. Save time and money with quick delivery. Try equipment out before committing a lot of money to a purchase. Save time and money on maintenance costs (which are the responsibility of the rental company). Please contact Axiom today for your rental needs ...

Metamaterial Converts Linear Compression into a Rotation

Metamaterial Converts Linear Compression into a Rotation - RF Cafe"Using 3D printers, researchers have created a metamaterial from cubic building blocks that responds to compression forces by a rotation. Usually, this can only be achieved by transmission using a crankshaft, for example. If a force is exerted from above onto a material, the latter deforms in various ways. It may be bulged, compressed, or bent; however, according to the rules of mechanics, it will not rotate. The researchers designed a filigree cubic structure that reacts to loading by a rotation around its axis. Using computer simulation, a design ..."

Monday 12

Mobile World Congress, Barcelona, 26 February - 1 March 2018

Mobile World Congress, Barcelona, 26 February - 1 March 2018 - RF CafeMobile World Congress is the world's largest gathering for the mobile industry, organised by the GSMA and held in the Mobile World Capital, Barcelona, February 26 - March 1 2018. Industry leaders will gather, network, showcase, and exchange ideas - and you don't want to miss it. The mobile world connects in Barcelona. Discover the future of mobile as top companies give an exclusive first look at the latest innovations. Make plans now ...

Test Bench: Build the Torture Box Environmental Chamber

Test Bench: Build the Torture Box Environmental Chamber, February 1974 Popular Electronics - RF CafeHere is a unique type of article from a 1974 issue of Popular Electronics. Author Ralph Tenny presents a poor-man's environmental test chamber constructed with a Styrofoam picnic cooler, a dry ice sump, a heater, a thermocouple, and a bunch of input/output ports for making electrical measurements. While working on my senior project at college - an electronic remote weather station - I needed to verify functionality up to 150°F and down to 0°F. Having the Torture Box would have been handy, but instead I used the kitchen oven and freezer with the interconnect cable mashed between the door gasket and frame. Unfortunately I don't have any ...

2017 Microwaves & RF Salary & Career Report

2017 Microwaves & RF Salary & Career Report - RF CafeMicrowaves & RF magazine published their 2017 Salary & Career Report last fall, but it didn't appear in print until the January(?) issue. It is a very comprehensive collection of data based on geographical location, years in the profession, time at present company, job title, and much more. I count about 27 different statistics with charts, tables, and maps. Oddly for an engineering magazine, there does not seem to be info on the number of participants or what the error is for sample size. I downloaded the PDF version and don't see it there, either ...

Anatech Electronics February Product Update

Anatech Electronics Product Update February 6, 2018 - RF CafeAnatech Electronics, Inc. offers the industry's largest portfolio of high-performance standard and customized RF and microwave filters and filter-related products for military, commercial, aerospace and defense, and industrial applications up to 40 GHz. Anatech has introduced three new filters for your convenience: a 3000 MHz stripline highpass filter with SMA connectors, a surface mount low-loss 100 MHz IF SAW filter, and a 4700 MHz cavity bandpass filter with N connectors ...

Comparison Between Wave Soldering and Reflow Soldering

Comparison Between Wave Soldering and Reflow Soldering - RF Cafe"As contemporary electronics embrace light weight, increasing efficiency, and high speed, each link of the manufacturing process also conforms to this philosophy, including printed circuit board (PCB) assembly. Soldering has played an essential role in determining the success of electronic products, since electrical connections derive from precise soldering. Compared with hand soldering, automatic soldering has been widely selected due to its merits of high accuracy and speed, and the demands of large volume ..."

Sunday 11

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines February 11

RF Cafe Engineering Crossword Puzzle w/Weekly Headlines February 11, 2018At least 10 clues with an asterisk (*) in this technology-themed crossword puzzle are pulled from this past week's (2/5 - 2/9) "Tech Industry Headlines" column on the RF Cafe homepage (see the Headline Archives page for help). For the sake of all the avid cruciverbalists amongst us, each week I create a new technology-themed crossword puzzle using only words from my custom-created related to engineering, science, mathematics, chemistry, physics, astronomy ...

   
Windfreak Technologies RF Cascade Workbook 2018 by RF Cafe
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About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2018
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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