Separated Fractal Antennas For Improved Emission Performance Of Terahertz Radiations

J. M. Diao Department of Microwave Engineering, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. ChinaCorrespondence[email protected]

F. Yang Department of Microwave Engineering, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China

Z. P. Nie Department of Microwave Engineering, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China

J. Ouyang Department of Microwave Engineering, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China

P. Yang Department of Microwave Engineering, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China

Abstract

We investigate the emission of terahertz (THz) radiation from two kinds of recently reported fractal photoconductive antennas by the method of separating antennas from transmission lines. A model for analyzing the separation design is presented. From the numerical simulations, the radiation power and center frequency of Sierpinski fractal photoconductive antenna are increased by ∼ 120% and ∼ 25%, respectively. Meanwhile, the first peak frequency emission intensity of H-fractal photoconductive antenna is increased by ∼ 70%. Because of the stronger resonant effect of the emitting antenna, this method shows high potential applications to various photoconductive antennas.

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Separated Fractal Antennas For Improved Emission Performance Of Terahertz Radiations

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Separated Fractal Antennas For Improved Emission Performance Of Terahertz Radiations

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