Planar array antenna with director on indium phosphide substrate for 300GHz wireless link

Haruichi Kanaya; Tomoki Oda; Naoto Iizasa; Kazutoshi Kato

doi:10.1117/12.2205421

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25 February 2016 Planar array antenna with director on indium phosphide substrate for 300GHz wireless link

Haruichi Kanaya, Tomoki Oda, Naoto Iizasa, Kazutoshi Kato

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Proceedings Volume 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX; 974722 (2016) https://doi.org/10.1117/12.2205421
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

This paper presents a design and fabrication of 1 x 4 one-sided directional slot array antenna with director metal layer on indium phosphide (InP) substrate for 300 GHz wireless link. The floating metal and polyimide dielectric layer are stacked on InP. Antenna is designed on the top metal layer. By optimizing the length of the bottom floating metal layer, one-sided directional radiation can be realized. The branched coplanar wave guide (CPW) transmission line is connected to each antenna element with the same electrical length. The size of the 1 x 4 array antenna is 2,550 µm x 1,217 µm x 18 µm. In order to enhance the gain of forward direction, director metal layer is placed over 83 µm from top metal layer. Simulated realized gain in peak direction of our antenna is 9.23 dBi. The measured center frequency is almost the same as that of the simulation results.

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Haruichi Kanaya, Tomoki Oda, Naoto Iizasa, and Kazutoshi Kato "Planar array antenna with director on indium phosphide substrate for 300GHz wireless link", Proc. SPIE 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX, 974722 (25 February 2016); https://doi.org/10.1117/12.2205421

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