Detailed analysis on combining efficiency of spatial power combining

Author

Dong, Shi-wei ; Dong, Ya Zhou

Author_Institution

Sci. & Technol. on Space Microwave Lab., CAST (Xi´´an), Xi´´an, China

fYear

2011

fDate

1-3 Nov. 2011

Firstpage

466

Lastpage

469

Abstract

Spatial power combining amplifier has gained worldwide interest since 1990´s and many of them have been developed in both open space and enclosed space. Combing efficiency describes the effectiveness of the combiner in summing all of the available power from active devices. Although it is one of the key figures of merit, some aspects still could not be understood clearly. In this paper spatial power combining amplifier techniques are firstly introduced. Then efficiency of such amplifiers is discussed including combining efficiency and power added efficiency. How unbalance of amplitude and phase impact on combining efficiency is analyzed in details and simulation results are given.

Keywords

power combiners; travelling wave amplifiers; combining efficiency; enclosed space; figures of merit; open space; spatial power combining amplifier; Arrays; Microwave amplifiers; Microwave communication; Power amplifiers; Tiles; amplitude; combining efficiency; phase; spatial power combiner;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications (MAPE), 2011 IEEE 4th International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8265-8

Type

conf

DOI

10.1109/MAPE.2011.6156266

Filename

6156266