High-Gain Resonant Continuous Transverse Stub Array Using Ridge Gap-Waveguide Technology
2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020)(2020)
摘要
This work presents an 8 x 8 continuous transverse stub (CTS) planar array operating at Ka-band with a pencil broadside beam in a series-feed configuration. For the purpose of maximizing the directivity of the antenna, ridge gap-waveguide (GWG) and short CTS elements are used. The ridge waveguides excite the stubs placed above them and a proper selection of the geometry and the dielectric leads to a close-to-uniform field distribution in both main planes. A beamforming network implemented in ridge-GWG technology is also designed and described. A maximum gain of 263 dBi is obtained for an antenna whose radiating area is 6.87 lambda(0) x 7.67 lambda(0) keeping side lobes level below -13 dB in both main planes. Some other simulation results will be shown to prove the potential of the proposed design.
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关键词
Antenna, gap-waveguide, Ka-band, CTS, ridge, PMC, corporate feeding network, high gain
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