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Plate-laminated-waveguide corporate-feed slot array antennas with a polarization conversion layer

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5 Author(s)
Hirokawa, J. ; Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan ; Tomura, T. ; Miura, Y. ; Miao Zhang
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This paper presents conversion to circular or tilted linear polarization by adding a layer of apertures over the plate-laminated-waveguide corporate-feed slot array antenna. A circularly polarized 16×16-element array antenna achieves high antenna efficiency of 91.6% including losses at 61.5GHz by diffusion bonding of laminated metal thin plates. In a tilted linearly polarized 16×16-element array antenna, the measured cross polarization is -31.5dB in the boresite at the designed frequency of 61.5GHz.

Published in:

Microwave Workshop Series on Millimeter Wave Integration Technologies (IMWS), 2011 IEEE MTT-S International

Date of Conference:

15-16 Sept. 2011