Title :
Propagation and band broadening effect of planar ridged substrate-integrated waveguide (RSIW)
Author :
Li, Cuixia ; Che, Wenquan ; Russer, Peter ; Chow, Y.L.
Author_Institution :
Dept. of Electr. Eng., Nanjing Univ. of Sci. & Technol., Nanjing
Abstract :
To improve the bandwidth of the SIW, a planar ridged substrate-integrated waveguide (RSIW) with a center line of cylindrical posts is proposed. Theoretical design formulas are derived. The bandwidth is defined as between the cutoffs of TE10 and TE20 modes of the RSIW. The modes are made equivalent to those of a transmission line cavity, across the transverse plane, and the cavity is loaded by a ridge of capacitive posts. Good agreements are observed between the theoretical formulas and numerical simulations. A 37% bandwidth enhancement is achieved. Higher enhancement is possible.
Keywords :
planar waveguides; ridge waveguides; transmission line theory; band broadening effect; cylindrical posts; planar ridged substrate-integrated waveguide; theoretical design formulas; transmission line cavity; Bandwidth; Distributed parameter circuits; Equivalent circuits; Metallization; Planar transmission lines; Planar waveguides; Propagation constant; Rectangular waveguides; Transmission line theory; Waveguide discontinuities; RSIW; bandwidth improvement; cutoff frequency; propagation constant; transmission line theory;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540427
