Analytical equivalence between substrate-integrated waveguide and rectangular waveguide
- 1 February 2008
- journal article
- Published by Institution of Engineering and Technology (IET) in IET Microwaves, Antennas & Propagation
- Vol. 2 (1), 35-41
- https://doi.org/10.1049/iet-map:20060283
Abstract
Rectangular waveguide (RW) with sidewalls of vertical conducting cylinders (i.e. SIW, substrate-integrated waveguide) becomes popular with the advent of low-temperature co-fired ceramic structure; its analysis is usually numerical, or modal, leading to empirical design formulas. However, its analytical equivalence to the common RW of the solidwall is identified; in other words, analytical design formulas of the SIW and the equivalent RW of solid sidewalls are the same. The equivalence is established on comparing the surface impedances along the side walls, of the SIW and of an RW through analytical continuation. The equivalence formulas, propagation and cut off frequency show very good agreement with the results from both numerical simulations and measurements of hardware experiments, and over wide frequencies. The good agreements are easily understood on the basis of the conformal maps and the variational principle.Keywords
This publication has 13 references indexed in Scilit:
- Multilayered substrate integrated waveguide (MSIW) elliptic filterIEEE Microwave and Wireless Components Letters, 2005
- A substrate integrated waveguide degree-2 circulatorIEEE Microwave and Wireless Components Letters, 2004
- Finite-difference frequency-domain algorithm for modeling guided-wave properties of substrate integrated waveguideIEEE Transactions on Microwave Theory and Techniques, 2003
- Single-substrate integration technique of planar circuits and waveguide filtersIEEE Transactions on Microwave Theory and Techniques, 2003
- Low cost microwave oscillator using substrate integrated waveguide cavityIEEE Microwave and Wireless Components Letters, 2003
- Dispersion characteristics of substrate integrated rectangular waveguideIEEE Microwave and Wireless Components Letters, 2002
- Microstrip line on ground plane with closely spaced perforations?fringe fields and formulas by synthetic asymptoteMicrowave and Optical Technology Letters, 2001
- Integrated microstrip and rectangular waveguide in planar formIEEE Microwave and Wireless Components Letters, 2001
- Single-layer feed waveguide consisting of posts for plane TEM wave excitation in parallel platesIEEE Transactions on Antennas and Propagation, 1998
- Field Computation by Moment MethodsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1993