RF Impact of Intercostal Structure on the Rear-Shell Performance of a DGR Antenna

Author

Saxena, Shashank ; Sood, K.K. ; Jyoti, Rajeev

Author_Institution

Space Applic. Centre (SAC), Indian Space Res. Organ. (ISRO), Ahmedabad, India

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

1121

Lastpage

1124

Abstract

A modeling and analysis approach is presented to accurately predict the RF impact of intercostal structure on the rear-shell performance of a dual gridded reflector (DGR) antenna. Hybrid physical optics method of moments (PO-MoM)-based electromagnetic analysis capability has been effectively utilized. The intercostal ribs have been identified as the main cause of copolar gain degradation and pattern distortion with smaller contribution from the intercostal ring.

Keywords

distortion; method of moments; physical optics; reflector antennas; DGR antenna; PO-MoM-based electromagnetic analysis capability; RF impact; copolar gain degradation; dual gridded reflector antenna; hybrid physical optics method of moments; intercostal ribs; intercostal ring; intercostal structure; pattern distortion; rear-shell performance; Antenna measurements; Dielectrics; Moment methods; Radio frequency; Reflector antennas; Scattering; Dual gridded reflector (DGR); intercostal; method of moments (MoM); pattern distortion; physical optics (PO);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2218564

Filename

6301677