Title :
Analysis and fabrication of millimeter-wave slotted waveguide array antennas
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
Two topics on slotted waveguide array antennas are described. First, a three-dimensional structure of a T-junction to feed a partially-dielectric-filled waveguide is decomposed into two two-dimensional problems uniform in the orthogonal directions to each other in order to reduce the calculation time. The partially-dielectric-filled waveguide reduces the equivalent dielectric constant and the transmission loss and realizes hard-walls in the side walls from practical point of view. Secondly, diffusion bonding of laminated metal thin plates is applied to a 60GHz double-layer waveguide slot array with fully corporate feed. The antenna gives more than 32dBi and 80% efficiency over about a 5GHz bandwidth in measurement.
Keywords :
dielectric-loaded waveguides; millimetre wave antenna arrays; permittivity; slot antenna arrays; waveguide antenna arrays; T-junction; dielectric constant; diffusion bonding; double layer waveguide slot array; frequency 60 GHz; laminated metal thin plates; millimeter wave slotted waveguide array antennas fabrication; orthogonal direction; partially dielectric filled waveguide feed; three dimensional structure; transmission loss; two dimensional problem; Apertures; Arrays; Bandwidth; Feeds; Slot antennas; Waveguide components;
Conference_Titel :
Electromagnetic Theory (EMTS), 2010 URSI International Symposium on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-5155-5
Electronic_ISBN :
978-1-4244-5154-8
DOI :
10.1109/URSI-EMTS.2010.5637349