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White Papers

Skyworks White Paper: Ultra Low Noise Amplifiers By Stephen Moreschi and Jody Skeen

Introduction This white paper describes the performance and characteristics of two new ultra low noise LNAs from Skyworks. Topics include techniques used in biasing and matching these devices. A circuit description, including information on thermal considerations, is also provided. The SKY67150-396LF and SKY67153-396LF were designed to cover a wide bandwidth with the use of two […]

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Additional Links

RF and Microwave Useful Links or Tools:

    • Microwaves101 – Includes encyclopedia of terms and acronyms, useful on-line calculators, and downloads. • RF Globalnet – Microwave Industry News, Analysis, and Technical Articles • Modelithics – Industry leading provider of simulation models for RF, Microwave, and Millimeter-wave devices. • Black and White or Color Smith Chart (PDF) • Free RF Lineup […]

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• Aethercomm • Carlisle Interconnect Technologies (Tensolite) • CML Microcircuits • Dielectric Laboratories • GigOptix • Gowanda Electronics • Innovative Power Products Catalog • KCB Solutions, Inc. • Linear Technology • Mercury United Electronics • Micro-Coax • Mini-Circuits Application Notes • MtronPTI • Passive Plus Technical Documents • Passive Plus AVX/ATC Cross Reference • Pulse […]

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CML Microcircuits White Papers

CML – Bringing the Flexibility of Software Defined Radio to Narrowband and Industrial Wireless Applications

Introduction A Software-Defined Radio (SDR) is one that implements some traditional hardware radio functions in software. For example, in the extreme case one can use a high performance Analog-to-Digital Converter (ADC) to digitize a wide swath of RF spectrum, then implement functions in software to provide the down-conversion mixer, filtering, and baseband recovery. Such a […]

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Application Notes

CDIAN002: Choosing the Right GaN Device for Reliability and Robustness

While Sumitomo Electric Device Innovations, Inc., SEDI, (formerly Eudyna) was the first to the marketplace with a reliable high volume GaN Power HEMT, there are many manufacturers who are offering GaN microwave power devices today. This application note will look at a few of the major factors in determining the reliability and robustness of different […]

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Application Notes

CDIAN001: Stability Considerations When Designing Microwave Power Amplifiers

Today’s device landscape appears to be a gold mine for newly minted microwave engineers. In many ways, GaN has become the great equalizer, allowing even inexperienced engineers to build amplifiers with a level of performance that would have been unachievable 10 years ago. The high gain, high power density, and reasonably high terminal impedances that […]

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Application Notes Sumitomo

Sumitomo – A GaN 45W amplifier using the EGN045MK covering 1.3-1.8 GHz

Many solid state amplifier designers have shown strong interest in the higher power and wider bandwidth possible with the new GaN HEMT devices. An example of a moderate bandwidth amplifier using SEDI’s EGN045MK GaN 45W device is shown. Amplifier Features Instantaneous Bandwidth: 1.3-1.8 GHz Pout: 50 W Linear Gain: 13 dB Gain Flatness: < 1.0 […]

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Application Notes Sumitomo

Sumitomo – Power Device Mounting Considerations

A 10-W, GaN HEMT SEDI device is found to be useful for designs from low frequencies up to 5 GHz. A design example over a subband of this performs over more than one octave at lower frequencies. The device is biased class AB. A linear single-ended amplifier for broadband UHF applications using the EGN010MK was […]

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Application Notes Sumitomo

Sumitomo – High Power GaAs FET Amplifiers: Push-Pull versus Balanced Configurations

Abstract: Various methods of combining high power “push-pull” devices are often possible. Two methods, push-pull and balanced configurations, are theoretically discussed. A practical example with a push-pull and a balanced amplifier using the same 150 W, S-band GaAs device(1) is reported and amplifier data are compared and analyzed. Various methods of combining high power “push-pull” […]