Decade bandwidth single and cascaded travelling wave medium power amplifiers using sige hbts

Sayginer, Mustafa; Yazgi, Metin; Toker, Ali; Kuntman, Hakan; Virdee, Bal S.

doi:10.1109/ecctd.2011.6043833

Cited by 1 publication

(1 citation statement)

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“…In the mentioned studies, design perspectives are focused mostly on gain boosting in a wide band. There are some works giving design approaches for the power and small‐signal performances , but there are not enough and certain design suggestions and straightforward systematic to improve the output power and efficiency performances together with the small‐signal performances. In this study, we aimed to put forward a simple and systematic approach to design and realize a wideband power amplifier in the CSSTWA topology.…”

Section: Introductionmentioning

confidence: 99%

A systematic design of 1.5-9 GHz high power-high efficiency two-stage GaAs PHEMT power amplifier

Sayginer

Yazgi

2014

Int J RF and Microwave Comp Aid Eng

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In this article, a systematic design approach for a Class‐A operated wideband power amplifier is presented. The power amplifier structure comprises of two transistors in the cascaded single stage traveling wave amplifier topology. A power amplifier was designed by using the systematic approach and fabricated with 0.25 μm GaAs PHEMT MMIC process. The amplifier has an area of 3.4 × 1.4 mm2. Measurement results show that almost flat gain performance is obtained around 15 dB over 1.5–9 GHz operating bandwidth. In most of the band, with the help of a wideband load‐pull matching technique, the amplifier delivers Po,sat and Po,1dB of around 30 dBm and 28 dBm where the corresponding power added efficiencies are >50% and >36%, respectively. It is shown that the proposed design approach has the advantage of simple and systematic design flow and it helps to realize step‐by‐step design for the designers. © 2014 Wiley Periodicals, Inc. Int J RF and Microwave CAE 24:615–622, 2014.

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Section: Introductionmentioning

confidence: 99%