RF Cafe Homepage
Your  Favorite RF, Microwave, Wireless, Radar, & Analog Engineering Website
This Day in History - 1850: Edward Weston, founder of the Weston Electrical Instrument Company, was born. 1865: A patent was issued to Richard Gatling for his Gatling gun. 1882: William Ford was issued a patent for his now-familiar stethoscope. 1893: Thomas Edison exhibited the first public motion picture (kinetoscope) to an ...
Technical Headlines
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Light/Matter Interaction to Improve Semiconductor Interfaces
FCC Looks to Raise Vanity Call Sign Fees
Students to Call Long Distance to the ISS
Modern Ceramics Help Advance Technology
India's BSNL Invites Bids for $6.5B GSM Expansion Contract
USPTO Embarks on Listening Tour on Design Protection of Automotive Parts
Indian Semiconductor Ecosystem Poised for Takeoff
Haze, Still Misunderstood, Costing Semi Industry $1B a Year
Why Earth Needs Lunar Property Rights
Energy-Efficient Ethernet Standard Gains Traction
Radio 'Recession-Resistant, Not Recession-Proof'
Fees for '.org' Domain Names to Increase 10%
Over 550 Million GPS-Enabled Handsets Will Ship by 2012
Japan Looks to Space for Military Use
'Speed Racer' Super-Car Faces Reality Check
NASA Satellite Images Burma Cyclone
Tech Tools Bring Big Success for Small Businesses
FCC Denies Two Amateur Radio Petitions for Rulemaking
'Kill Switch' in Globally Outsourced ICs Feared by Pentagon
Software by RF Cafe
-Complete List-
RF Cascade Workbook
  RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.

RF system analysis now includes frequency conversion & filters

Free OOo edition
for limited time.

RF Workbench
Probably the most downloaded Shareware in RF engineering history
Smith Chart™ for Excel
This will amaze you
Smith Chart™ for Visio
Built on the Visio grid
RF & EE Symbols Word
Built on the Word grid
RF & EE Stencils for Visio
Built on the Visio grid
Calculator Workbook
Download for FREE - Excel & OpenOffice versions
Your Host
Click here to read about RF CafeKirt Blattenberger... single-handedly
re-defining what an engineering website should be.

Listen to "Seize the Day" by Carolyn Arends - it requires installation of Rhaposody player (free)Carpe Diem!
(Seize the Day)

View the YouTube RF Cafe Intro video New in April 2008
An RF Cafe Intro Video
Hobby
Airplanes and Rockets: My personal hobby website

Spektrum DX6: World's first spread spectrum R/C system

Equine Kingdom: My daughter Sally's horse riding business website - lots of info   Mt. Airy News

Online Calculators
These engineering calculators are created with Office Web Components (OWC) and include filters, voltage dividers, attenuators and more.
RF Cafe is a Certified
Green Website.
RF Cafe: Certified Pb-Free Website - Tin Whiskas Found!RF Cafe:: Certified RoHS Compliant Website - Tin of Whiskas Found!
Pb-Free   RoHS

Our Promise to You:
No Pb, CFC, PCB, LSD, PCP, or other hazardous/illegal material has used in the production of RF Cafe. No animals have been harmed.

Smorgasbord
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China is Doing Things
in a Big Way

China is home to the world's largest shopping mall: the 7,000,000 ft2 South China Mall; the world's longest sea-crossing bridge - the 32 km-long span over the East China Sea; the world's largest hydroelectric dam - the Three Gorges Dam project; and the world's highest railroad - the Qingzang Railway crossing the Tibetan permafrost 5 km above sea level; and now the world's largest airport - the Feng-Shui-compliant Beijing International Airport, which covers 2x the area of the Pentagon. That's a lot of resources and huge carbon footprints - good thing for them that they are a "developing country" and are not subject to the Kyoto Protocol.
Cool Video
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RF Cafe: GFS Projects Limited Unmanned Aerial vehicle (UAV) GFS13AThe GFS Projects Limited Unmanned Aerial vehicle (UAV) GFS13A is able to take off and land vertically; it can hover at heights up to eighty feet. The GFS UAV uses the Coanda principle to create lift, it has very little downwash and is aerodynamically stable.
Cool Pic
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RF Cafe: RF Engineer's Chess SetAs if we RF engineers didn't already have a hard enough time shedding the nerd stereotype, the guy at LeapSecond.com had to exacerbate the problem by creating this chess set. All the pieces are made from different types of RF connectors. Thanks a lot!
Press Releases
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Z-Communications, Inc. is Pleased to Announce a New Division Named Z-Comm Microwave
Radiocrafts Launches World’s First Wireless M-Bus RF Module
Accellera Continues Support for Verification and Interoperability with Formation of New Standards Committee
Littelfuse Announces New Fast-Switching Teccor® Thyristors
RFMD® Announces Strategic Restructuring to Leverage Leadership in RF Components and Compound Semiconductors
Beryllium Oxide (BeO) from Brush Ceramic Products Achieves New Benchmark in Thermal Conductivity
RFMD® Releases 2.4 GHz ISM Band Transceiver - ML2726
C-band Coaxial Resonator Oscillator Delivers Ultra Low Phase Noise for Digital Radios & Satellite Communications Applications
New Littelfuse SDP SIDACtor® Series DSL Protectors Provide Superior Surge Protection While Maintaining Signal Quality
Reciprocal Links
If you are kind enough to consider providing a reciprocal link from your website to RF Cafe, then here are a few pre-prepared formats that you might consider.
Notable Quote
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"Every morning in Africa, a gazelle wakes up. It knows it must run faster than the fastest lion or it will be killed. Every morning a lion wakes up. It knows it must outrun the slowest gazelle or it will starve to death. It doesn't matter whether you are a lion or a gazelle; when the sun comes up, you'd better be running." - Herb Caen, former San Francisco Chronicle columnist.
Cool Product
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Kikusui PLZ6000R 6kW Regenerative DC Electronic LoadKikusui does not provide an estimate of how long it will take their PLZ6000R 6kW Regenerative DC Electronic Load to pay for itself, but the concept uniqueness alone makes worthy of further investigation. Regular electronic loads consume load power by having semiconductor devices convert it into heat. By contrast, PLZ6000R converts load power into reusable electric power, rather than converting it into heat as is typically done, and feeds this power to the AC line.
Featured Book
Test-System Development Guide: A Comprehensive Handbook for Test EngineersTest-System Development Guide: A Comprehensive Handbook for Test Engineers
Free from Agilent
May Giveaway
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Click here to see the book listEach month, the winner can choose from a list of my engineering books. Click on icon for details. Robert S. and Kevin A. are Winners in the April 2008 RF Cafe Book Giveaway!
Kirt's Cogitations
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Choose Your
Welfare System

I will pose here a question with a seemingly obvious answer – a rhetorical one of sorts. Most likely to you and definitely to me, the answer indeed is obvious, but unfortunately for far too many, the answer is what is termed a non sequitur. Here is the question: If you accept the fact that the government is going to extort outrageous tax dollars from the producers of society, would you rather that the money be spent distributing handouts to people who have no intention of contributing positively to the economy, or to companies who employ those willing to be productive and thus ease the overall burden on everyone? Most politicians, whose primary function in life is, based on empirical evidence, to get elected and then remain in office, know from ample experience that rewarding certain types of bad behavior can have its advantages. For instance, if a lazy person knows that he can indulge his inclinations and is content with just eking out a continued existence, then he is happy to spend his days living off the hard work of others. If we are fortunate, he will at best cause no trouble for the rest of us beyond the bite he takes out of our paychecks. At worst – and this is all too often the case – his idle lifestyle will provide opportunity for causing mischief. That, of course, will require that more be withheld from our paychecks in the form of taxes to police, prosecute, incarcerate, rehabilitate, and then monitor him his entire life. Generations of such people have been created and coddled all for the sake of maintaining a nice, fat, somewhat reliable voter ... (more)

Recent Additions
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5-9-2008 Crossword Puzzle
IEEE Spectrum Survey: How Green is Your Company?
Click to visit the TestParts.com websiteTestParts Has Renewed Its Assistance in Bringing RF Cafe to You
Raytheon Baltimore Career Event - May 20th
Click to visit antennas.usThanks to antennas.us for Their Continued Support
Clemson University Vehicular Electronics Laboratory - Lots of Resources for EMC & Modeling
PCBDesign.org - Extensive PCB Design Resource
ABC Vacuum Tubes - 2,000 Varieties, 3.5 Million Parts
DesignWorks Express - Free Schematic Capture from Capilano
Saeid Bezian - Mechanical Engineer - Resume Addede
New RF Cafe Page: Engineering & Science Mistakes & Myths
SemiApps Readers Select Best Chip Solutions for Energy Conservation
UWB - A Window of Opportunity
Commentary: Engineers Need an Image Makeover
10 Phrases Employers Say They Hate to Hear
John Raymond C. Manalastas - RF Planning and Optimization Engineer - Resume Added
Bhupesh Kumar Sahu - RF/Microwave R&D Engineer - CV Posted
Nucomm Announces Engineering Openings on RF Cafe Employment Forum
1st Mob/Comm Alumni Photo Gallery
Don Nelson Reports in with His MPN-13 Radar Service
Scrape It: How to Probe a Microstrip Trace with No Accessible Test Points or Vias
15 Steps to Starting Your Own Electronic Kit Business
The New Challenge for Tech Companies: Currency Fluctuations
RF Cafe Forum Member sfnative Won a 15 oz. Coffee Mug for Participation
Sudipta Das - RF Planning/Optimization Engineer - CV Added
Robert S. is a Winner in the April 2008 RF Cafe Book Giveaway!
Having Problems Getting Older Programs to Run on Windows Vista? Try Here
All Peaks Aren't Gaussian
The New Economics of Semiconductor Manufacturing
Modified Thermal Chamber Cuts EMI
Congrats to Jess C. of RF Bites for Winning a T-Shirt
The Best and Worst Science Movies
Qualcomm Interview Forum
RF Cafe has become the  the de facto place to visit for questions, answers, and sharing of interview experiences with Qualcomm. Check out the Forum here. We have no affiliation of any sort with Qualcomm.
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