High-Power Combline Diplexer for Space

Author

Shamsaifar, K. ; Rodriguez, Taniana ; Haas, Jason

Author_Institution

Eng., Sierra Microwave Technol., Georgetown, TX, USA

Volume

61

Issue

5

fYear

2013

fDate

May-13

Firstpage

1850

Lastpage

1860

Abstract

A high-power L -band combline diplexer to be used in a National Aeronautics and Space Administration/Jet Propulsion Laboratory space mission has been designed and tested for multipaction. The radar path was required to have peak power handling of 450 W with 24.25-W average. The radar filter was partially filled with low-loss dielectric material to protect it against multipaction. The device was tested with input power up to 1800-W peak with no evidence of multipaction while having excellent RF peformance, including less than 0.20-dB insertion loss over temperature.

Keywords

airborne radar; dielectric materials; electric breakdown; filters; microwave devices; multiplexing equipment; Jet Propulsion Laboratory space mission; National Aeronautics and Space Administration; RF breakdown; RF peformance; high-power L -band combline diplexer; insertion loss; low-loss dielectric material; multipaction design; multipaction testing; peak power handling; power 24.25 W; power 450 W; radar filter; radar path; Dielectrically loaded filter; diplexer; high power; multipaction testing;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2013.2252920

Filename

6494355