Patch‐monopole monopulse feed for deep reflectors | Zendy

Miklavčič P. | Zendy; Vidmar M. | Zendy; Batagelj B. | Zendy

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Patch‐monopole monopulse feed for deep reflectors

Author(s) -

Miklavčič P.,

Vidmar M.,

Batagelj B.

Publication year - 2018

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2018.5753

Subject(s) - monopulse radar , helical antenna , magnetic monopole , monopole antenna , acoustics , electrical engineering , computer science , engineering , physics , electronic engineering , telecommunications , radar , antenna (radio) , radar imaging , continuous wave radar , periscope antenna , quantum mechanics

A novel design for a simple and compact monopulse feed is presented for illuminating a deep reflector from the primary focal point, e.g. a rotationally symmetric single‐reflector parabolic antenna, with a diameter‐to‐focal‐distance ratio of around 0.4. The proposed feed is designed as a multimode circular cavity (cup) antenna. The elliptical patch excites a left‐hand‐circularly polarisedTE 11mode for the sum channel. The monopole in the centre of the patch excites the orthogonal, linearly polarisedTM 01mode for the difference channel. Two prototypes for such a feed were developed and fabricated, where the first was a proof‐of‐concept device and the second was a computer simulation‐optimised version. Both the simulations and the measurements of the optimised prototype are presented.

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