Design of a Wideband Low profile Omnidirectional Bi-conical Antenna

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A vertically polarized omnidirectional bi-conical antenna is proposed in this paper. The antenna can be used to transmit and receive signals on the aircraft. The design features an embedded cavity structure formed by reducing the antenna profile and integrating it into the aircraft surface, significantly reducing hydrodynamic effects compared to traditional conformal antennas. The coaxial-fed structure comprises a biconical radiator, conical guiding medium, and a conical cavity between the aircraft body and guiding medium. This configuration extends the operational bandwidth for multi-band communication while maintaining required electrical performance. Through optimized design of the guiding medium's dimensions and shape, the antenna achieves enhanced low-elevation gain characteristics. Experimental results demonstrate effective operation across 4-6 GHz with VSWR <2 and low-elevation gain reaching approximately 0.8 dB. The proposed design offers an aerodynamically favorable solution that meets both communication performance and aircraft integration requirements.

Original languageEnglish
Title of host publication2025 IEEE 8th International Conference on Electronic Information and Communication Technology, ICEICT 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages432-435
Number of pages4
ISBN (Electronic)9798331595050
DOIs
StatePublished - 2025
Event8th IEEE International Conference on Electronic Information and Communication Technology, ICEICT 2025 - Weihai, China
Duration: 26 Jul 202528 Jul 2025

Publication series

Name2025 IEEE 8th International Conference on Electronic Information and Communication Technology, ICEICT 2025

Conference

Conference8th IEEE International Conference on Electronic Information and Communication Technology, ICEICT 2025
Country/TerritoryChina
CityWeihai
Period26/07/2528/07/25

Keywords

  • low proflie
  • omnidirectional antenna
  • wideband

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