The feasibility of a variable output matching circuit in a high-power SSPA

被引：7

作者：

Cotler, AC ^{[1
]}

Brown, ER ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90024 USA

来源：

RAWCON 2002: IEEE RADIO AND WIRELESS CONFERENCE, PROCEEDINGS | 2002年

关键词：

D O I：

10.1109/RAWCON.2002.1030149

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper analyzes a new technique for matching the output impedance of a 100-W-class solid-state power amplifier (SSPA) toa load usinga variable transformer circuit consisting of switchable series-indicator and shunt-capacitor banks. A large-signal time-domain tool (Saber(R)) is adapted to model the matching circuit and shows that the power-added efficiency can be made much more level with respect to input and output power than in a fixed matching circuit. For example, in a class-AB LD-MOSFET-based SSPA design for 60% PAE at similar to\110 W output, the variable matching circuit allows for -50% PAE down to about 20 W output, compared to about 25% PAE from a fixed matching circuit.

引用

页码：189 / 191

页数：3