A Compact Wideband Substrate-Integrated Waveguide MIMO Antenna for Radar Detecting Application

초록

In this paper, a compact wideband substrateintegrated waveguide (SIW) MIMO for radar detecting application is proposed. The proposed antenna is a type of twolayer structure comprising of a slotted metallic plate loaded with corrugation structure on the top layer and an FR-4 substrate based SIW on the bottom layer. This antenna satisfies a -10 dB reflection coefficient from 10.15 GHz to 11.58 GHz. To realize the gain enhancement with a narrow beam pattern for radar application, method of constructive superposition of inphase electromagnetic energy from the two slots is used. In addition, due to the antenna’s 2-port characteristic, the proposed antenna also attains beam scanning function from -12˚ to +12˚ from the boresight direction of an antenna.

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