Compact wideband printed antenna with circularly polarized tilted beam radiation using a Quasi-Radiator

Ellis, M.S.; Nourinia, J.; Ghobadi, Ch.; Hosseini, K.; Alizadeh, F.; Mohammadi, B.

doi:10.1016/j.aeue.2023.154883

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Bowtie-shaped patches loaded with metallic material via a wall along one edge [ 14 ] can achieve an elevation angle of ±45°. In [ 15 ], a quasi-radiator loaded with a fork slot and a shorting via was proposed, the beam tilting was realized through the overlap of two orthogonal fields, and the minimum elevation angle attained was 42°. A grounded patch antenna with three parasitic patches on the middle layer [ 16 ] was shown to attain a reduced elevation angle of ±40°.…”

Section: Introductionmentioning

confidence: 99%

A Bidirectional Quasi-Endfire Patch Antenna with Low Elevation Angle

Zhou,

Shi,

Liu

et al. 2024

Micromachines

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A bidirectional quasi-endfire patch antenna with a low elevation angle has promising applications for wireless communication systems that are vehicle-based, airborne, and shipborne. In this paper, the shortened patch resonators and open patch resonator are integrated to form a bidirectional quasi-endfire patch antenna with low elevation angle. The open patch resonator operates with a TM20 mode to realize bidirectional radiation. The two shortened patch resonators operate with a TM01 mode coupled with a TM20 mode to control the phase difference between them at a suitable angle, so that the shortened patch resonators act as directors to tilt the dual beams toward the endfire direction and achieve low elevation angle. Compared with reported patch antennas with dual beams, the proposed antenna has the lowest elevation angle and a compact structure. For demonstration purposes, an antenna prototype operating at 3.5 GHz is fabricated and measured, exhibiting a low elevation angle of ±28°, a −10 dB impedance matching bandwidth from 3.44 GHz to 3.61 GHz, and a size of 1.36 λ0 × 0.57 λ0 with a profile of 0.036 λ0. A prototype with two pair of shortened patch directors further reduces the elevation angle to ±19° with the size of 2.3 λ0 × 0.57 λ0.

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Section: Introductionmentioning

confidence: 99%