Title :
Single-Layer Corporate-Feed Slot Array in the 60-GHz Band Using Hollow Rectangular Coaxial Lines
Author :
Sano, Makoto ; Hirokawa, Jiro ; Ando, Makoto
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
A single-layer corporate-feed slot array antenna is presented. The single-layer structure is realized by adopting hollow rectangular coaxial lines for the corporate-feed circuit and placing the feeding circuit and the radiating elements in the same layer. Based on this, a 16 × 16-element slot array for the 60-GHz band is designed and fabricated by diffusion bonding of laminated thin copper plates. A 32.3 dBi gain and 72.2% antenna efficiency are confirmed at the design frequency of 61.5 GHz in the measurements. The 1-dB down gain bandwidth is 8.8%. The conductor loss of the antenna is estimated to be 0.85 dB at 61.5 GHz.
Keywords :
antenna feeds; coaxial waveguides; millimetre wave antenna arrays; rectangular waveguides; slot antenna arrays; 60-GHz band; corporate-feed slot array; efficiency 72.2 percent; feeding circuit; frequency 60 GHz; frequency 61.5 GHz; hollow rectangular coaxial lines; laminated thin copper plates diffusion bonding; radiating elements; single-layer structure; slot array; Antenna arrays; Arrays; Cavity resonators; Conductors; Rectangular waveguides; Reflection; Diffusion bonding; hollow rectangular coaxial line; single-layer antenna; slot array;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2346213
