NOISE AND LOSS IN BALANCED AND SUBHARMONICALLY PUMPED MIXERS .1. THEORY

被引：50

作者：

KERR, AR

机构：

[1] NASA Goddard Institute for Space Studies, Goddard Space Flight Center, New York

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1979年 / 27卷 / 12期

关键词：

D O I：

10.1109/TMTT.1979.1129771

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the theory of noise and frequency conversion is developed for two-diode balanced and subharmonically pumped mixers. Expressions for the conversion loss, noise temperature, and input and output impedances are derived in a form suitable for numerical analysis. Schottky diodes are assumed, having nonlinear capacitance, series resistance (which may be frequency dependent due to skin effect), and shot and thermal noise. In Part II, the theory is applied to several practical examples, and computed results are given which show the very different effects of the loop inductance (between the diodes) in balanced and subharmonically pumped mixers. It is also shown that the ideal two-diode mixer using exponential diodes has a multiport noise-equivalent network (attenuator) similar to that of the ideal single-diode mixer. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.

引用

页码：938 / 943

页数：6

共 26 条

[1]

BENNET WR, 1960, ELECTRICAL NOISE

[2]

Cardiasmenos A. G., 1978, 1978 IEEE MTT-S International Microwave Symposium Digest, P399

[3] SUB-HARMONICALLY PUMPED MILLIMETER-WAVE MIXERS [J].