Combined differential and common-mode analysis of power splitters and combiners

Author

Bockelman, David E. ; Eisenstadt, William R.

Author_Institution

Motorola Radio Products Appl. Res., Plantation, FL, USA

Volume

43

Issue

11

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

2627

Lastpage

2632

Abstract

Power splitter/combiner phase and magnitude imbalance is analyzed in terms of simultaneous orthogonal modes of propagation. These simultaneous modes are defined as differential and common-mode. A new measure of splitter imbalance is suggested in the common-mode rejection ratio (CMRR). Measured response of a 180° hybrid splitter is represented in terms of the differential and common-mode responses, and the CMRR is calculated. Combiner imbalance is also analyzed in terms of differential and common-mode responses, and response metrics are suggested. Analytical expressions for CMRR of several common splitters is given as functions of phase and magnitude imbalance

Keywords

power combiners; power dividers; common-mode analysis; common-mode rejection ratio; differential analysis; hybrid splitter; magnitude imbalance; phase imbalance; power combiners; power splitters; simultaneous orthogonal modes; Bandwidth; Impedance matching; MMICs; Microwave amplifiers; Performance analysis; Phase measurement; Power measurement; Radio frequency; Radiofrequency amplifiers; Voltage;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.473188

Filename

473188