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High-gain reflector antenna with beam steering for terahertz wireless communications

This paper presents our study on a single-offset parabolic reflector antenna operating at 220 GHz, which offers high gain as well as the capability of beam steering for longdistance high-capacity terahertz wireless communications. With a switch-controlled array placing on the offset focal plane as the primary feed, the beam steering can be realized by selecting single element in different position to radiate by using switches. The simulation shows that the antenna can achieve a gain up to 55.19 dBi and a 3dB beam scanning angle of over ±3°.