DocumentCode :
3190959
Title :
Asymmetric microstrip gaps mounted inside a ground cylindrical surface
Author :
Ching-Her Lee ; Hsu, C.-I.G. ; Jean-Fu Kiang
Author_Institution :
Dept. of Ind. Educ., Nat. Changhua Univ. of Educ., Taiwan, China
Volume :
4
fYear :
1998
fDate :
21-26 June 1998
Firstpage :
1858
Abstract :
Accurate characterization of cylindrical microstrip gap discontinuities is crucial for the design of the circuits including them. In the past, considerable work has been done analyzing a variety of microstrip gap discontinuities on planar and curved substrates. However, the related studies on the asymmetric gap discontinuities mounted inside a grounded cylindrical substrate are still scant in the open literature. In this paper, a full-wave spectral-domain approach is used to analyze such asymmetric gap structures. To obtain a numerical solution, the entire-domain sinusoidal functions are used to represent the traveling-wave mode of the strip current and piecewise sinusoidal (PWS) functions are added in the vicinity of the gap to model the current disturbance due to the structure discontinuity. The dispersion characteristics of the frequency-dependent S-parameters and the gap equivalent capacitances for various microstrip width ratios are presented and discussed.
Keywords :
S-parameters; microstrip discontinuities; spectral-domain analysis; waveguide theory; asymmetric microstrip gaps; current disturbance; cylindrical microstrip gap discontinuities; dispersion characteristics; entire-domain sinusoidal functions; frequency-dependent S-parameters; full-wave spectral-domain approach; gap equivalent capacitances; ground cylindrical surface; microstrip width ratios; numerical solution; piecewise sinusoidal functions; strip current; structure discontinuity; traveling-wave mode; Capacitance; Coupling circuits; Current density; Frequency; Green´s function methods; Microstrip filters; Microstrip resonators; Scattering parameters; Strips; Transmission line matrix methods;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
Type :
conf
DOI :
10.1109/APS.1998.701565
Filename :
701565
Link To Document :
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