A highly efficient monopulse comparator and feed assembly for a W-band trans-twist microstrip reflect-array

Author

Jahagirdar, D.R.

Author_Institution

Directorate of RF Syst., RCI, Hyderabad, India

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

A highly efficient monopulse comparator and feed network has been realized for a W-band trans-twist reflect-array that performs the dual role of focusing the beam and twisting the polarization. An split-E-plane waveguide assembly of four ring hybrids acts as a monopulse comparator network. It is precceded by a planar transition and a quad-waveguide axial transition. A multi-mode corrugated horn was designed as a feed for the reflect-array. The performance analysis, loss estimates and measured loss shows the overll antenna system has best possible efficiency. The radiation pattern performance is also found to be excellent.

Keywords

antenna feeds; antenna radiation patterns; microstrip antenna arrays; W-band trans-twist microstrip reflect-array; feed network; four ring hybrids; highly efficient monopulse comparator; monopulse comparator network; multi-mode corrugated horn; planar transition; quad-waveguide axial transition; radiation pattern performance; split-E-plane waveguide assembly; Assembly; Computer numerical control; Feeds; Microstrip; Microstrip antenna arrays; Planar waveguides; Waveguide transitions;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5562269

Filename

5562269