Vol. 93

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2020-08-22

Single-Layer Single-Feed Wideband Omnidirectional Microstrip Antenna with Rotating Square Patches

By Hao Zhang and Ying-Zeng Yin
Progress In Electromagnetics Research Letters, Vol. 93, 27-34, 2020
doi:10.2528/PIERL20030301

Abstract

A single-layer single-feed wideband omnidirectional microstrip antenna with rotating square patches is investigated in this paper. To obtain wide impedance band, the proximity-fed structure are introduced to the antenna to generate dual resonating modes. Two square patches with rotating angle of 90 degrees are used as the main radiator to improve the omnidirectional feature of the radiation pattern. For verifying the design, an antenna prototype with wide operation bandwidth is designed, simulated, fabricated, and measured. The results indicate that the impedance bandwidth (|S11| < -10 dB) as high as 48.6% (3.02-4.96 GHz) is obtained. Meanwhile, the height of the antenna is only 0.11λ00 is the free space wavelength corresponding the lowest frequency). What's more, omnidirectional radiation pattern is obtained over the operation band. The advantages ofwideband, low-profile and simple feed structure make the antenna good candidate in modern communication systems.

Citation


Hao Zhang and Ying-Zeng Yin, "Single-Layer Single-Feed Wideband Omnidirectional Microstrip Antenna with Rotating Square Patches," Progress In Electromagnetics Research Letters, Vol. 93, 27-34, 2020.
doi:10.2528/PIERL20030301
http://www.jpier.org/PIERL/pier.php?paper=20030301

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