Title :
Study of material loss in mm-wave RLSA with honeycomb structure
Author :
Nguyen, Thin ; Jayawardene, Rushanthi ; Sakurai, Kimio ; Hirano, Takuichi ; Hirokawa, Jiro ; Ando, Makoto ; Koreeda, Shuichi ; Matsuzaki, Takaomi
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
Analysis of the electrical properties of dielectric materials, which were used to fill an oversized radial waveguide of the RLSA, was carried out at 32 GHz. The use of multiple layers is indispensable to meet the requirements for space-use RLSA, and the electrical properties (permittivity, loss factor) need to be specified accurately in order to design the slot array and optimize the antenna performances. Simulation results of the waveguide filled with NOMEX® honeycomb structure suggested a significant material loss at 32 GHz. The measurement results of fabricated antennas supported this anticipation.dielectric materials,oversized radial waveguide
Keywords :
dielectric materials; honeycomb structures; slot antenna arrays; NOMEX honeycomb structure; frequency 32 GHz; material loss; mm-wave RLSA; radial line slot antennas; slot array antenna; Antenna measurements; Dielectric loss measurement; Gain; Honeycomb structures; Loss measurement; Materials; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710825
