20.500.12556/RUL-160052 A new sum-channel radiating element for a patch-monopole monopulse feed This article describes a new design for the sum-channel, circularly-polarized, radiating patch element of a multimode patch-monopole monopulse feed. Such feeds are suitable for the prime-focus illumination of a deep symmetric reflector. A relatively simple and compact feed design allows for a compact single-mirror antenna with monopulse tracking. The feed is about a wavelength in diameter, also making it suitable for illuminating smaller antennas, for example, in LEO-satellite ground (client) stations. The design applies a slotted circular patch as a circularly-polarized sum-channel element. The design variables are optimized mainly for the sum-channel aperture illumination efficiency in an S-band satellite ground station. After a few cut-and-try iterations, the final feed prototype was produced and measured. In addition to an additional degree of freedom in the geometry and potentially easier fabrication, the new sum-channel radiating-element shape allows for a slightly better monopulse channel isolation, and a higher radiation-pattern symmetry compared to the previous design. wireless communications monopulse antenna multimode antenna prime-focus feed circularly-polarized patch brezvrvične komunikacije monopulzna antena večrodovna antena vir glavnega gorišča kožno polarizirana krpica true false true Angleški jezik Slovenski jezik Članek v reviji 2024-08-12 13:44:34 2024-08-12 13:44:41 2024-08-14 03:33:30 0000-00-00 00:00:00 2024 0 0 10 str. iss. 16, art. 3187 Vol. 13 Avg.-2 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.39 2079-9292 10.3390/electronics13163187 204164355 electronics-13-03187.pdf electronics-13-03187.pdf 1 836E845B8FF09E916E4E084E321F1006 ce1cb5d82b67a0b624de97d8366cfeacf5ef70bbaa440c32eb12bd1ca9a99f9a 4b92055f-58a0-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=188472 https://www.mdpi.com/2079-9292/13/16/3187 1 18f2fa4f-58a0-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=188471 Fakulteta za elektrotehniko 0 0 0