Detecting and avoiding odd-mode parametric oscillations in microwave power amplifiers

被引：17

作者：

Anakabe, A

Collantes, JM

Portillia, J

Mons, S

Mallet, A

机构：

[1] Univ Basque Country, Elect & Elect Dept, Bilbao 48080, Spain

[2] Univ Limoges, IRCOM, F-87060 Limoges, France

[3] Toulouse Space Ctr, CNES, F-31401 Toulouse, France

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2005年 / 15卷 / 05期

关键词：

odd-mode oscillations; parametric oscillations; stability analysis; power amplifiers;

D O I：

10.1002/mmce.20112

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Multistage power amplifiers are prone to parametric oscillations of an oddmode nature. In this article, a technique for detecting and avoiding odd-mode parametric oscillations in microwave power amplifiers under large-signal excitations is extended and improved. For that, two monolithic amplifiers, having different topology and different oscillation mode, are extensively analyzed. A previously analyzed X-band two-stage power amplifier is used as a first example. Then, the technique is applied to a novel L-band one-stage power amplifier exhibiting a different oscillation mode. The success in determining the oscillation nature of these two different examples and the strategies used for their stabilization clearly illustrate the potential of this technique to address the complex problem of parametric oscillations in microwave amplifiers. (c) 2005 Wiley Periodicals, Inc.

引用

页码：469 / 478

页数：10

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