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Planar Dual-Mode Dipole Antenna Formed by Artificial Microstrip Arms Loaded With Multiple H-Slots for Broadband Operation of Vertically Polarized Radiation on UAV Platform.

Authors :
Chou, Hsi-Tseng
Lin, Ding-Bing
Chiu, Han-Lin
Source :
IEEE Transactions on Antennas & Propagation. Sep2022, Vol. 70 Issue 9, p7869-7877. 9p.
Publication Year :
2022

Abstract

An antenna design is presented for long-distance transmission in the unmanned aerial vehicle (UAV) application. This antenna is in a dipole configuration but with dual-mode operations of both dipole and monopole mechanisms. The monopole behavior becomes apparent when installed on the UAV platform to provide a large ground. To ensure both modes’ good integration to produce a broad bandwidth, the dipole arms are formed by H-slot loaded microstrips to create a slower phase velocity. The separation between adjacent harmonic resonances can be decreased. This antenna has good vertically polarized radiation and maximum gains near the horizontal plane to provide better long-distance connections. Various combinations of H-shaped slots are applied to examine the bandwidth behaviors. The achieved size is 90 mm, roughly 1/3 wavelengths at 1.25 GHz and 1/4 at 0.8 GHz. The bandwidth is larger than 50%. Numerical HFSS full-wave simulation and measurement results are compared to validate the feasibility. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0018926X
Volume :
70
Issue :
9
Database :
Academic Search Index
Journal :
IEEE Transactions on Antennas & Propagation
Publication Type :
Academic Journal
Accession number :
160621175
Full Text :
https://doi.org/10.1109/TAP.2022.3177535