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Design of a Fractal Dual-Polarized Aperture Coupled Microstrip Antenna

By Hai Rong Cheng, Xiao-Qun Chen, Lei Chen, and Xiao-Wei Shi
Progress In Electromagnetics Research Letters, Vol. 9, 175-181, 2009


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.


Hai Rong Cheng, Xiao-Qun Chen, Lei Chen, and Xiao-Wei Shi, "Design of a Fractal Dual-Polarized Aperture Coupled Microstrip Antenna," Progress In Electromagnetics Research Letters, Vol. 9, 175-181, 2009.


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