Title :
Wideband waveguide slot array antennas with corporate-feed in 120GHz and 350GHz bands
Author :
Hirokawa, Jiro ; Dongjin Kim ; Ando, Makoto ; Nagatsuma, Tadao ; Takeuchi, Jun ; Hirata, Akihiko
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
We design and fabricate double-layer slotted waveguide array antennas with wide bandwidths and high efficiencies for 120 GHz and 350 GHz bands. To achieve high gain and high efficiency in high frequency bands, the diffusion bonding technique of plate laminated waveguide is used as a fabrication method. The antennas with 16×16 slots show about 70% efficiency with 32 dBi gain and about 50% efficiency with 31 dBi gain in the 120 GHz and 350 GHz bands, respectively.
Keywords :
antenna feeds; broadband antennas; diffusion bonding; millimetre wave antenna arrays; slot antenna arrays; diffusion bonding technique; double-layer wideband slotted waveguide array antennas; fabrication method; frequency 120 GHz; frequency 350 GHz; gain 31 dB; gain 32 dB; high frequency bands; plate laminated waveguide; Antenna arrays; Antenna measurements; Arrays; Gain; Reflection; Slot antennas;
Conference_Titel :
Electromagnetic Theory (EMTS), Proceedings of 2013 URSI International Symposium on
Conference_Location :
Hiroshima
Print_ISBN :
978-1-4673-4939-0