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

Volume

2

fYear

2008

fDate

21-24 April 2008

Firstpage

467

Lastpage

470

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICMMT.2008.4540427

Filename

4540427