Design of a W/G-band power splitter for harmonic amplifiers

Author

Xiaoqing Zhang ; Jun Cai ; Yinfu Hu ; Xianping Wu ; Ji Chen ; Jinjun Feng

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Beijing Vacuum Electron. Res. Inst., Chaoyang, China

fYear

2015

fDate

27-29 April 2015

Firstpage

1

Lastpage

2

Abstract

In order to reuse the harmonic current in the spent beam of W-band TWT, we have proposed a novel device, which is a G-band 2nd harmonic amplifier with two output ports for W-band and G-band respectively. Based on the rectangular waveguide cutoff characteristic and iris coupling principle, this paper described a new type of power splitter to extract the 2nd harmonic signal in G-band from mixed fundamental and 2nd harmonic signals. The power splitter has the advantages of simple structure and easy fabrication. From the simulation results, the 2nd harmonic bandwidth of the power splitter is found to be more than 4GHz, with and insertion loss less than-1dB.

Keywords

harmonic analysis; microwave amplifiers; rectangular waveguides; travelling wave tubes; G-band; TWT; W-band; harmonic amplifier; harmonic current reuse; insertion loss; iris coupling principle; power splitter; rectangular waveguide cutoff characteristic; travelling wave tube; 2nd harmonic; G-band; Power splitter; W-band;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference (IVEC), 2015 IEEE International

Conference_Location

Beijing

Print_ISBN

978-1-4799-7109-1

Type

conf

DOI

10.1109/IVEC.2015.7224011

Filename

7224011