Title :
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
fDate :
7/4/1905 12:00:00 AM
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);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2218564
