Title :
Broad-band cruciform substrate integrated waveguide couplers
Author :
Kishihara, Mitsuyoshi ; Komatsubara, Motoyuki ; Okubo, Kensuke ; Ohta, Isao
Author_Institution :
Fac. of Comput. Sci. & Syst. Eng., Okayama Prefectural Univ., Soja, Japan
Abstract :
This paper describes a method to broaden the bandwidth of cruciform substrate-integrated waveguide couplers. The design and the analysis of the couplers are performed using the H-plane planar circuit approach, and the frequency characteristics of the couplers designed at 24 GHz are shown. As a result, fractional bandwidths of 30% for a 3 dB coupler and 16% for a 1.7 dB coupler can be realized. The design results are verified numerically and experimentally.
Keywords :
substrates; waveguide couplers; H-plane planar circuit; broad-band cruciform substrate; fractional bandwidths; frequency 24 GHz; integrated waveguide couplers; Bandwidth; Circuits; Computer science; Couplers; Dielectric substrates; Frequency; Impedance; Millimeter wave technology; Performance analysis; Systems engineering and theory; Millimeter-wave technology; couplers; passive components; planar circuit approach; substrate-integrated waveguide (SIW);
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385263
