Premium
Double‐layer substrate integrated waveguide structure with variable fractional bandwidth
Author(s) -
Xu Lei,
Che Wenquan,
Geng Liang,
Wang Dapeng
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22469
Subject(s) - passband , fractional bandwidth , microwave , bandwidth (computing) , substrate (aquarium) , coupling (piping) , materials science , physics , optoelectronics , electronic engineering , optics , engineering , telecommunications , band pass filter , quantum mechanics , geology , oceanography , metallurgy
The propagation characteristics of double‐layer SIW structures have been investigated in this paper. On the basis of the theory of resonance cavity and SIW, the simple theoretical formulas for the lower and upper frequencies in the passband have been found. The theoretical analyses have indicated that these two frequencies have much dependence on the width of SIW and the length of the coupling slot, the fractional bandwidth of the double‐layer SIW structures can be controllable. Agreement between the simulation data and the calculated results from the formulas can be observed. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1459–1463, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22469