Abstract
AbstractMicrostrip antennas have the advantages of light weight, low profile, and conformal to the attached surface with antenna feed line. This work presents the design of transparent microstrip antennas by In2O3:Sn thin film on glass and polycarbonate substrates. The transparent conducting thin films of 21–300 nm thickness deposited by magnetron sputtering are measured by X‐ray diffraction for microstructure, 4‐point probe for electrical resistance, and spectrometer for optical transmittance. Analyses show that the 2.4 GHz antenna can achieve 5.1 and 4.7 dB antenna gain on glass (1.2 mm) and polycarbonate (0.7 mm) substrate, respectively. Experimental verification on glass substrate shows that the antenna achieves 3.1 dB gain and 86% optical transmittance on 550 nm wave length.
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