Title :
Plate-laminated-waveguide corporate-feed slot array antennas with a polarization conversion layer
Author :
Hirokawa, Jiro ; Tomura, Takashi ; Miura, Yohei ; Zhang, Miao ; Ando, Makoto
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
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.
Keywords :
laminates; linear antenna arrays; polarisation; slot antenna arrays; waveguide antennas; circular linear polarization; diffusion bonding; efficiency 91.6 percent; frequency 61.5 GHz; high antenna efficiency; laminated metal thin plates; plate-laminated-waveguide corporate-feed slot array antennas; polarization conversion layer; tilted linear polarization; Antenna measurements; Apertures; Arrays; Frequency measurement; Gain; Reflection; Plate-laminated-waveguide; corporate-feed; diffusion bonding; millimeter-wave; polarization;
Conference_Titel :
Microwave Workshop Series on Millimeter Wave Integration Technologies (IMWS), 2011 IEEE MTT-S International
Conference_Location :
Sitges
Print_ISBN :
978-1-61284-963-8
DOI :
10.1109/IMWS3.2011.6061879
