Design of a Fractal Dual-Polarized Aperture Coupled Microstrip Antenna

doi:10.2528/PIERL09060102

PIER Letters
Progress In Electromagnetics Research Letters	ISSN: 1937-6480

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DESIGN OF A FRACTAL DUAL-POLARIZED APERTURE COUPLED MICROSTRIP ANTENNA

By H. R. Cheng, X.-Q. Chen, L. Chen, and X.-W. Shi

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Abstract:
In this paper, a fractal dual-polarized aperture-coupled microstrip antenna is presented. The proposed antenna adopts 1st Minkowski fractal patch and is fed by the aperture-coupled structure with H-shaped and H-shaped loaded capacitance. The size of Minkowski fractal patch is reduced by 20% compared with a square patch. Results show that the T/R isolation is better than 35 dB, improved by 2 dB compared with the double H-shaped slots. The gain is more than 8 dB, and the front-back ratio is greater than 20 dB in the operating frequency range. Both simulated and experimental results are in good agreement.

Citation:
H. R. Cheng, X.-Q. Chen, L. Chen, and X.-W. Shi, "Design of a fractal dual-polarized aperture coupled microstrip antenna," Progress In Electromagnetics Research Letters, Vol. 9, 175-181, 2009.
doi:10.2528/PIERL09060102
http://www.jpier.org/pierl/pier.php?paper=09060102

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