𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A high-power amplifier using photonic bandgap and coplanar waveguide

✍ Scribed by Chulhun Seo


Book ID
102519028
Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
201 KB
Volume
36
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

In this paper, an R‐band hybrid amplifier with a coplanar‐waveguide (CPW) and photonic‐bandgap (PBG) structure is designed and fabricated. We use PBG and CPW simultaneously in the amplifier to improve power‐added efficiency (PAE) and intermodulation distortion (IMD) in the R‐band. In this paper, the PBG structures are optimized to obtain a matching network. The output impedance of amplifier and the input impedance of PBG are matched to minimize the return loss. The PAE and IMD were improved by 15% and 4.5 dB, respectively, compared with a conventional amplifier. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 108–110, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10689


📜 SIMILAR VOLUMES


A Ka-band CMOS power amplifier using new
✍ Jong-Wook Lee; Sang-Moo Heo 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 235 KB

## Abstract A Ka‐band three‐stage power amplifier was developed in 0.18 μm CMOS technology using a new substrate‐shielded coplanar waveguide (CPW). The new CPW structure reduces the loss from the conductive silicon substrate allowing high gain for the amplifier. Broadband modeling of substrate‐shie

Ultra-wideband three-way power divider u
✍ A. M. Abbosh 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 657 KB

## Abstract A compact three‐way power divider with ultra‐wideband (UWB) performance is presented. The proposed device utilizes a simple and low‐cost broadside‐coupled microstrip‐coplanar waveguide structure. The conformal mapping technique is used to find the dimensions of the device. The simulated

A high-efficiency class-E power amplifie
✍ Yong-Sub Lee; Yoon-Ha Jeong 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 209 KB

## Abstract This article reports a high efficiency class‐E power amplifier using a SiC MESFET, which is designed and tested at 2.14 GHz. To improve output power and efficiency by suppressing harmonic powers, an output matching circuit using the transmission lines is used. From measured results for

A high-efficiency power amplifier using
✍ Hyunjin Kim; Youngsang Jeon; Jaejun Lee; Sungho Lee; Sangwook Nam 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 331 KB

## Abstract This article introduces a new architecture for a high‐efficiency linear transmitter using a pulse modulated envelope signal. The transmitter employs multilevel PWM to represent the baseband signal. By using multilevel PWM, the efficiency of the power amplifier can be improved compared w

A high-efficiency inverse class-F power
✍ Hyoungjong Kim; Gilwong Choi; Jinjoo Choi 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 296 KB

## Abstract The design and fabrication of a high‐efficiency inverse class‐F power amplifier using a 10‐W gallium nitride (GaN) high‐electron mobility transistor at 1 GHz is presented. The output load network has been used to control harmonic components for high‐efficiency operation. The measurement

A high efficiency class-F power amplifie
✍ Sangwon Ko; Wenhsing Wu; Jenshan Lin; Soohwan Jang; Fan Ren; Stephen Pearton; Ro 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 241 KB

## This paper reports the development of a high efficiency and compact power amplifier using an AlGaN/GaN high electron mobility transistor (HEMT). The class-F load network in microstrip topology was applied to a 0.75-m gate length and 300-m gate width AlGaN/ GaN HEMT. The 1 dB compression point o