科研之友
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摘要
A planar W-band array antenna is presented in this communication with a high gain and compact footprint. In order to simplify the feed network and reduce the feeding loss, a high-order resonating mode, i.e., the TE560-like mode, is employed for radiations. Thus, a single-elementantenna can support 30 radiation slots on the top surface of the substrate-integrated cavity. Full-wave analysis along with measured results is given to explain the operational principle and performance of the proposed antenna. A 20 x 24 and 40 x 48 slot arrays based on the proposed high-order resonating mode element antenna are fabricated and measured to demonstrate array applications. The measured results show that these two arrays have a -10 dB impedance bandwidth from 91 to 97 GHz. The measured peak gain is 26.39 dBi at 95.3 GHz and 30.36 dBi at 95.2 GHz for the 20x24 and 40x48 slot arrays, respectively.
