RF Cafe Sponsors

Please show your appreciation for these sponsors who help keep RF Cafe online by visiting their websites and using their products and services when possible. I am deeply appreciative of their support.

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These Are Companies Currently Advertising on the RF Cafe Website

- Click on the company logos for details -

Aegis Power Systems	AC-DC and DC-DC power electronics solutions to support military, aircraft, EV, telecom, and embedded computing applications. Design and manufacture of custom power supply solutions to meet each customer's exacting specifications.
Alliance Test Equipment	Used / refurbished test equipment with short- and long-term rentals. Repair, maintenance and calibration. Prices discounted up to 80% off list price. A global organization with ability to source hard to find equipment through our network of suppliers.
Anritsu	Manufactures a full line of innovative components and accessories for RF, Microwave, and optical test and measurement equipment, including spectrum, network, and signal analyzers, o-scopes, couplers, attenuators, and much more.
Amplifier Solutions Corporation (ASC)	Hybrid, surface mount flange, open carrier and connectorized amps for low, medium and high powers using GaN, GaAs, Si transistor technologies. Thick film designs operate 300 kHz to 6 GHz, thin film designs operate to 20 GHz.
Anatech Electronics	Manufactures and supplies RF and microwave filters for military and commercial communication systems, providing standard and custom RF filters, as well as coaxial RF cables, connectors and adaptors.
Axiom Test Equipment	Rent, buy, sell, trade, or have test equipment repaired. Comprehensive inventory of RF, analog, and digital test equipment and can use our extensive network to find you those hard to get items.
Centric RF	RF and Microwave coaxial components, including attenuators, adapters, cable assemblies, terminations, power dividers, and more. Frequencies 0-110 GHz, and power levels from 0.5-500 watts.
ConductRF	RF coaxial cable assemblies - standard, precision, & custom. Coaxial connectors, between-series adapters, & attenuators. >1,000 solutions for low PIM in-building wireless designers to choose from in the iBwave component library.
Copper Mountain Technologies	Lab-quality vector network analyzers (VNAs) that provide high accuracy, wide dynamic range, a familiar Windows UI and a broad variety of standard features. 50 Ω and 75 Ω product lines for 1-, 2-, and 4-port measurements.
Crane Aerospace & Electronics	Full line of RF & microwave components and subsystems including linear & log amplifiers, fixed & variable attenuators, circulators & isolators, power combiners & dividers, couplers, mixers, switches & matrices, oscillators & synthesizers .
Empower RF Systems	High-power solid state amplifiers suitable for virtually any RF, microwave and radar application. Architecture employs full circuit protection against electrical power and RF faults down to the component level.
everything RF	Product discovery platform for RF & microwave products and services. Over 100,000 products listed from more than 200 companies across 200 categories enables engineers to search using a customized parametric search tool.
Exodus Advanced Communications	Power and low noise amplifiers ranging from 10 kHz to 51 GHz with various output power levels and noise figure ranges, we fully support custom designs and manufacturing requirements for both small and large volume levels.
Innovative Power Products (IPP)	RF passive components - 90° Couplers, directional couplers, baluns, RF attenuators, resistors and terminations. Surface mount, drop-in, flanged, and connectorized. Custom designs available.
ISOTEC	Designs, develops and manufactures an extensive line of RF/microwave connectors, cable assemblies, attenuators, terminations, couplers, filters, surge protectors, and LNAs. Low PIM designs available.
KR Electronics	Manufactures all filter types - LP, HP, BP, BS, multiplexer, equalizer, phase splitter - and individually synthesizes filters for special applications. State of the art computer synthesis, analysis and test methods used to meet challenging specifications.
LadyBug Technologies	USB Power Sensors: True RMS sensors; Peak & Pulse sensors for peak and pulse power, duty cycle and crest factor. Pulse Profiling sensors for triggered pulse measurements and statistical functions including CDF, CCDF and PDF along with time domain trace visibility.
PCB Directory	Largest directory of printed circuit board manufacturers manufacturers and fabricators on the Internet. We have listed the leading PCB around the world and made them searchable by their location and capabilities - laminates used, board thickness supported, layers supported etc.
Reactel	Many filter designs are available in either tubular, rectangular, or waveguide packages, connectorized or surface mount, and standard or high power versions. Frequencies up to 50 GHz, depending on filter type.
RF & Connector Technology (RFCT)	RF attenuators, terminations, dummy loads, DC blocks, power couplers, power dividers & splitters, surge arrestors, RF coaxial connectors, RF coaxial cable & cable assemblies, and compact antennas.
RIGOL Technologies	Manufacturer of digital and mixed signal oscilloscopes, spectrum analyzers, function / arbitrary waveform generators, programmable power supplies and loads, digital multimeters, data acquisition systems, and application software.
San Francisco Circuits	Advanced technology PCB fabrication & assembly. San Francisco Circuits is a one-stop supplier with two California locations in San Mateo and San Diego. 40+ layers, prototype & production quantities, 48-hourour prototypes, blind & buried vias, much more.
Temwell	Temwell manufactures wireless filter types including helical, cavity, LC, and SMD filters in highpass, lowpass, bandpass, and bandstop responses, for 5G applications in aerospace, satellite comms, AIoT, 5G networking, IoV, drone, medical, military, lab, CATV.
TotalTemp Technologies	Thermal platforms for cryogenic cooling, recirculating circulating coolers, temperature chambers and temperature controllers, thermal range safety controllers, space simulation chambers, hybrid benchtop chambers, custom systems and platforms.
Werbel Microwave	RF directional and bidirectional couplers (6 dB to 30 dB) and RF power dividers / combiners (2- to 16-way) with select models operating up to 18 GHz and 100 W of CW power (3 kW peak). RoHS and REACH compliant. Custom designs available. Made in the USA.
Windfreak Technologies	Designs, manufactures, tests and sells high value USB powered and controlled RF signal generators, synthesizers, power detectors, mixers, Upconverters and downconverters.
Wireless Telecom Group	Boonton and Noisecom, part of the Wireless Telecom Group, are global designers and manufacturers of advanced RF and microwave power and noise measurement equipment, including power meters & sensors, analyzers, and noise & jitter sources.
withwave	Metrology quality coaxial test cable assemblies, connectors (wave-, end-, vertical-launch, board edge), calibration kits (SOLT), fully automated VNA calibrator, between- and in-series connector adaptors, attenuators, terminations, test probes & positioners.

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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Windfreak Technologies Frequency Synthesizers - RF Cafe