A new sum-channel radiating element for a patch-monopole monopulse feed

Miklavčič, Peter (author), Batagelj, Boštjan (author)

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.

• Language: English
• Keywords: wireless communications, monopulse antenna, multimode antenna, prime-focus feed, circularly-polarized patch
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: 10 str.
• Numbering: Vol. 13, iss. 16, art. 3187
• PID: 20.500.12556/RUL-160052
• UDC: 621.39
• ISSN on article: 2079-9292
• DOI: 10.3390/electronics13163187
• COBISS.SI-ID: 204164355
• Publication date in RUL: 12.08.2024

Record is a part of a journal

• Title: Electronics
• Shortened title: Electronics
• Publisher: MDPI
• ISSN: 2079-9292
• COBISS.SI-ID: 523068953

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: brezvrvične komunikacije, monopulzna antena, večrodovna antena, vir glavnega gorišča, kožno polarizirana krpica

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: J2-50072
• Name: Napredne metode za odkrivanje objektov pod površino s poudarkom na zajemu in interpretaciji podatkov

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0246
• Name: ICT4QoL - Informacijsko komunikacijske tehnologije za kakovostno življenje