Title :
Wideband design of a 2×2-slot sub-array in a double-layer corporate-feed waveguide antenna
Author :
Hirokawa, Jiro ; Tomura, Takashi ; Hirano, Takuichi ; Ando, Makoto
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
This paper presents the hybrid method combined with the method of moments and the finite element method for the radiating part to enhance the bandwidth of the double-layer corporate-feed waveguide slot array antenna. Next, the radiating part is designed by using the hybrid method and the bandwidth for VSWR less than 1.5 is improved from 9.2% to 18.0% by lower Q, appropriate arrangement of resonance frequencies and triple resonance.
Keywords :
antenna feeds; broadband antennas; finite element analysis; method of moments; slot antenna arrays; 2×2-slot sub-array; VSWR; double-layer corporate-feed waveguide antenna; double-layer corporate-feed waveguide slot array antenna; finite element method; method of moments; resonance frequency; triple resonance; wideband antenna design; Antenna arrays; Arrays; Bandwidth; Couplings; Finite element analysis; Method of moments; Slot antennas; finite element method; method of moments; multiple resonance; waveguide slot array; wideband design;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
