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http://dx.doi.org/10.7471/ikeee.2019.23.3.1112

Low-Profile Omni-Directional Microstrip Antenna Using Wired Ground Structure For Observation Munition  

Pyo, Seongmin (Dept. of Information and Communication Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.23, no.3, 2019 , pp. 1112-1115 More about this Journal
Abstract
This paper proposes a novel low-profile omni-directional microstrip antenna to mount on the deployable wing of the observation munition. The proposed antenna is designed on seven hexagonal resonators in a quasi-circular array to achieve a monopolar radiation pattern with a thin substrate. By employing the mesh ground structures, the resonant frequencies and impedance bandwidths of the proposed antenna is investigated. To verify the feasibility of the mesh ground structure, the thin ground wire width is investigated theoretically for improving the 3-dB fractional bandwidth, realized antenna gain and quality-factor. The proposed antenna demonstrates a good monopolar radiation in good agreement with the simulation results. The implemented prototype shows the measured bandwidth of 326 MHz with respect to 5.65% centered at 5.77 GHz and realized gain of 5.49 dBi at 5.84 GHz.
Keywords
Monopolar microstrip antenna; omni-directional radiation pattern; wired ground; observation munition; low-profile antenna;
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