𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A uneven Doherty power amplifier using anticoupled power divider and composite right/left-handed transmission lines

✍ Scribed by Shiwei Zhao; Zongxi Tang; Yiwei Wu; Lifen Bao

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
574 KB
Volume
53
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A uneven Doherty power amplifier using anticoupled power divider and composite right/left‐handed transmission lines (CRLH‐TL) is proposed for efficiency and linearity improvement.Uneven power divider is achieved by anticoupled line divider and CRLH‐TL, the structure is used to deliver more input power to the peaking amplifier than the main amplifier. The CRLH‐TL with lead 90° phase shifter at the input of maim amplifier is designed to flexible variation of power division ratio and phase, besides, anticoupled power divider to suppress the second harmonic of front class input. The drain efficiency of 45.2 and 39.3% has been measured at the saturated output power of 43 dBm and 6‐dB back off, respectively. Furthermore, the third‐order intermodulation distortion performance and ACLR is improved as much as 5–6 dB when compared with conventional uneven Doherty amplifier. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:322–324, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25715

📜 SIMILAR VOLUMES

A novel power divider utilizing composit
A novel power divider utilizing composite right/left-handed transmission line
✍ JiuSheng Li; YongZhuo Zou; SaiLing He 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 306 KB

## Abstract A novel composite right/left‐handed transmission line unit is proposed. Using the structure, a new power divider is developed. By adjusting the parameters of the capacitors and the inductors, the simulation results show that the power divider has perfectly symmetric power division at 1.

Design strategies for dual-band Class-E
Design strategies for dual-band Class-E power amplifier using composite right/left-handed transmission lines
✍ Mury Thian; Vincent Fusco 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 381 KB

## Abstract In this article we propose a technique for dual‐band Class‐E power amplifier design using composite right/left‐handed transmission lines, CRLH TLs. Design equations are presented and design procedures are elaborated. Because of the nonlinear phase dispersion characteristic of CRLH TLs,

Dual-band 1:3 series power divider based
Dual-band 1:3 series power divider based on composite right/left-handed transmission lines
✍ Xiao Liu; Chao Li; Fang Li 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 123 KB

## Abstract A dual‐band 1:3 series power divider that provides equal power splits to all three output ports is presented. To achieve dual‐band working, the divider employs, instead of conventional transmission lines of one wavelength, the composite right/left‐handed transmission lines (CRLH TLs) yi

A dual-band RF switch using composite ri
A dual-band RF switch using composite right/left-handed transmission lines and PIN diodes
✍ Dong-Ryul Shin; JeongPyo Kim; ChangHyun Park; Wonmo Seong 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 405 KB

## Abstract A dual‐band RF switch that utilizes composite right/left handed (CRLH) transmissions‐lines(TLs) and PIN diodes is proposed. The design method of RF switch is based on the phase characteristic of the CRLH‐TL, which can be adjusted arbitrary, and employed conventional type‐II; filter stru

A 3-bit phase shifter with high-power ca
A 3-bit phase shifter with high-power capacity based on composite right/left-handed transmission line
✍ J. Zhang; S.W. Cheung; T. I. Yuk 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 743 KB

## Abstract A miniaturized 3‐bit phase shifter with high power‐handling capacity is designed based on the use of a single composite right/left‐handed transmission line (CRLH‐TL) unit cell. PIN diodes mounted on the fingers of the CRLH‐TL unit cell are used as switches to control the phase shift of

A novel via-free composite right- and le
A novel via-free composite right- and left-handed transmission line using defected ground structure
✍ Jae-Hyun Park; Young-Ho Ryu; Jae-Gon Lee; Jeong-Hae Lee 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 297 KB

## Abstract In this letter, a novel via‐free composite right‐ and left‐handed transmission line (CRLH TL) is proposed using defected ground structure (DGS). The required shunt inductance and series capacitance for left‐handed transmission line are provided by the mender‐line of DGS and inter‐digita