Design of modified dual mode horn antenna to improve E/H-plane radiation pattern symmetry

Jae Sik Kim, Ji Hwan Yoon, Yoong Joong Yoon, Woo Sang Lee, Chang Gu Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Dual mode horn antenna is widely used in reflector antenna systems to illuminate symmetric E/H-plane radiation patterns to a reflector surface. Symmetric E/H-plane radiation pattern can improve the total gain of the reflector antenna system and allows a design of a reflector to be symmetric [1]. Dual mode horn antenna was developed by Potter [2] and many designs have been proposed to have symmetric E/H-plane radiation pattern [3]-[7]. The mode at the aperture of the dual mode horn antenna is hybrid mode (HE11 mode) which consists of approximately 85% of TE11 mode and 15% of TM 11 mode [8] and the antenna radiates gaussian-like beam pattern, and therefore the E/H-plane radiation patterns are symmetric ideally. However, if the aperture size of a dual mode horn antenna is increased to attain the desired gain or beamwidth for the reflector antenna system, ideal HE11 mode is difficult to be attained at the aperture because undesired high order modes which lead asymmetric E/H-plane radiation patterns are generated. In this paper, modified dual mode horn antenna with rectangular aperture is proposed to improve the E/H-plane radiation pattern symmetry in oversized aperture horn. Simulation and experimental results show that the proposed dual mode horn antenna has the improved E/H-plane radiation pattern symmetry compared to a conventional circular dual mode horn antenna.

Original languageEnglish
Title of host publicationConference Proceedings of the 2012 International Symposium on Antennas and Propagation, ISAP 2012
Pages547-550
Number of pages4
Publication statusPublished - 2012 Dec 1
Event2012 17th International Symposium on Antennas and Propagation, ISAP 2012 - Nagoya, Japan
Duration: 2012 Oct 292012 Nov 2

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Other

Other2012 17th International Symposium on Antennas and Propagation, ISAP 2012
CountryJapan
CityNagoya
Period12/10/2912/11/2

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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  • Cite this

    Kim, J. S., Yoon, J. H., Yoon, Y. J., Lee, W. S., & Kim, C. G. (2012). Design of modified dual mode horn antenna to improve E/H-plane radiation pattern symmetry. In Conference Proceedings of the 2012 International Symposium on Antennas and Propagation, ISAP 2012 (pp. 547-550). [6393999] (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).