期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 69, 期 2, 页码 683-688出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2020.3016429
关键词
Antennas; antipodal Vivaldi; beam-steering; dielectric fluid; ethyl acetate; fluidic; lens; lensed antenna; microfluidics; microwave; millimeter-wave (mm-wave); planar antenna
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2016-04784]
A fluidically reconfigurable millimeter-wave-lensed antenna is described in this study, with a modified design for beam-steering capability. Experimental results demonstrate good performance at 32 GHz and 35 GHz frequency bands.
A fluidically reconfigurable millimeter-wave (mm-wave)-lensed antenna is reported that covers the band from 32 to 35 GHz. The antenna is a modified antipodal Vivaldi antenna element with a fluidically loaded dielectric lens to facilitate single-element beam-steering. The fluid used in this work is ethyl acetate (C4H8O2) with epsilon(r) = 5.0 + j1.3, tan delta = 0.26 at 33.5 GHz. The antenna element and lens are manufactured using a substrate with epsilon(r) = 3.55 and tan delta = 0.0027. Experimental results show that the antenna can produce up to 25 degrees of beam-steering at 32 GHz and up to 20 degrees of beam-steering at 35 GHz. The maximum realized gain of the antenna is 8.6 dBi and the minimum realized gain is 5.6 dBi over the band.
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