Naslov
Theoretical Study of the Corrugated Hard Horn used as Feed in Multi-Beam Antennas for Dual Band Operation at 20/30 GHz

Autori
Sotoudeh, Omid ; Kildal, Per-Simon ; Šipuš, Zvonimir ; Mangenot, Cyril ; Ingvarson, Per

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2003 IEEE Antennas and Propagation Society International Symposium, vol. IV / Marhefka, Ronald J. - Columbus (OH) : Institute of Electrical and Electronics Engineers (IEEE), 2003, 506-509

Skup
2003 IEEE Antennas and Propagation Society International Symposium

Mjesto i datum
Columbus (OH), Sjedinjene Američke Države, 22.06.2003. - 27.06.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
horn antennas; hard horn; hard surfaces; dual-band antennas

Sažetak
We have demonstrated that in a cluster-fed reflector, a normal single-tuned hard horn can satisfy the usual -25 dB requirement for the cross polarization over a large frequency band, but it cannot completely satisfy the requirements for the co-polar level in the neighboring beam. We have also tried larger reflector diameters than those presented in the paper. In those cases, the beam isolation becomes better, but the 30 GHz footprint gets a dip in the center. The reason for the dip is that the sidelobe of the feed is illuminating the reflector at 30 GHz. This may be improved for finite lengths of the horn, for which phase of the aperture field at the horn causes a beam broadening mainly at 30 GHz.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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