✦ LIBER ✦

Investigation of broadband power amplifier with high power-combining efficiency

✍ Scribed by Kaijun Song; Yong Fan; Xiaobing Zhou

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 240 KB
Volume: 50
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.23614

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A four‐device broadband solid‐state power amplifier, which is based on radial waveguide power‐dividing/combining circuit, has been investigated in this work. The fabricated power amplifier combining four monolithic microwave integrated circuit power amplifiers shows a 12–16.6 dB small‐signal gain over a broadband from 6 to 14 GHz. The measured maximum output power at 1 dB compression is 25.6 dBm at 10 GHz, with a high power‐combining efficiency of 96%. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2178–2181, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23614

📜 SIMILAR VOLUMES

High-efficiency class-F power amplifier

High-efficiency class-F power amplifier with broadband performance

✍ P. Butterworth; S. Gao; S. F. Ooi; A. Sambell 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB

## Abstract The design methodology and measured performance of a broadband UHF class‐F power amplifier is presented and compared to that of a typical narrowband class‐F design. The realized broadband circuit achieves 65% of power‐added efficiency with 21 ± 0.5‐dBm output power from 575 to 915 MHz,

Design of high-efficiency and broadband-

Design of high-efficiency and broadband-tuned class AB power amplifier

✍ Aynaz Vatankhahghadim; Slim Boumaiza 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 348 KB

## Abstract The design of broadband matching networks (MNs) exploiting filter theory is presented in this article for synthesizing broadband and highly efficient power amplifiers (PAs).Starting from sets of optimum impedances over the design frequency (obtained from load/pull measurement), the MNs

X-band high-power amplifier with a magne

X-band high-power amplifier with a magnetically coupled power-combiner

✍ Kyung-Ai Lee; Changkun Park; Jong-Hoon Chun; Songcheol Hong 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 296 KB

## Abstract In this article, a high‐power amplifier for X‐band application is studied, which consists of a two‐stage amplifier with magnetically coupled power‐combiners and dividers. These are based on transmission line transformers, which has lower loss characteristics than spiral‐type transformer

Design of a high efficiency power amplif

Design of a high efficiency power amplifier with input and output harmonic terminations

✍ S. F. Ooi; S. K. Lee; A. Sambell; E. Korolkiewicz; P. Butterworth 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 395 KB

## Abstract In this article it is shown, how, using the load/source pull method to generate the current/voltage waveforms of a class‐F power amplifier, the optimum load, and source impedances at the first three harmonics are obtained. Novel harmonic controllable matching networks are then used to o

Reconfigurable un-equal division power d

Reconfigurable un-equal division power divider with the compact size for high efficiency power amplifiers

✍ Jinho Jeong; Chan Hyeong Park 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 164 KB

## Abstract In this letter, a reconfigurable un‐equal division two‐way power divider with the compact size is presented for high efficiency power amplifiers. It is based on the Wilkinson power divider of which the quarter‐wave long lines are replaced by coupled lines. Two ends of each coupled line

High-efficiency tapered distributed powe

High-efficiency tapered distributed power amplifier with 2-μm GaAs HBT process

✍ Jian Xu; Zhi-Gong Wang; Ying Zhang; Li Ma 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 483 KB

## Abstract An integrated power distributed amplifier, fabricated in a low‐cost 2‐μm GaAs heterojunction bipolar transistor (HBT) technology, is implemented in this letter. A tapered collector line structure combined with the input capacitive coupling technique is used to improve the bandwidth and