Title :
Dual-Polarized Corrugated Horns for Advanced Measurement Applications
Author :
Foged, L.J. ; Giacomini, A. ; Morbidini, R.
Author_Institution :
SATIMO Italy, Pomezia, Italy
Abstract :
Recent advances in the design of orthomode junctions (OMJs) have created new devices capable of achieving as much as a 1:4 bandwidth, while maintaining the high performance of traditional OMJ designs. The new OMJ technology is based on an inverted-ridge structure, with four symmetrical feeding points for external balanced feeding, stabilizing the frequency dependence of the OMJ. This paper discusses the achievable performance and limitations of wideband probes with multiple corrugated apertures. It shows measured and predicted design examples of apertures covering up to 1:2 bandwidth in the L- to Ka-band range.
Keywords :
antenna feeds; horn antennas; microwave antennas; polarisation; probes; corrugated apertures; dual-polarized corrugated horns; external balanced feeding; feeding points; inverted-ridge structure; microwave antennas; orthomode junctions; Antenna measurements; Extraterrestrial measurements; Horn antennas; Corrugated horn; antenna measurements; dual polarization; far field; illuminator; near field; orthomode transition; probe; wideband;
Journal_Title :
Antennas and Propagation Magazine, IEEE
DOI :
10.1109/MAP.2010.5723270
