DocumentCode
2794933
Title
Approximate formula of the lowest-order TM mode of a pentagonal waveguide family
Author
Zheng, Qinhong ; Peng, Jinhui ; Yao, Bin ; Zhong, Runeng ; Xu, Wansong ; Xiang, Tai ; Li, Lin
Author_Institution
Sch. of Phys. & Electron. Inf., Yunnan Normal Univ., Kunming, China
fYear
2011
fDate
15-17 July 2011
Firstpage
1076
Lastpage
1079
Abstract
Based on two inequalities, the upper and lower bounds of the cutoff wavenumber of the lowest-order TM mode of a pentagonal waveguide family are derived. By means of taking the geometric mean value, an approximate formula to calculate the cutoff wavenumber of the lowest-order TM mode of a pentagonal waveguide family is developed. It is the function of the cross section geometric parameters of the pentagonal waveguide. Comparisons between the results obtained by the approximate formula and the available numerical published data fully validate accuracy of the approximate formula.
Keywords
geometry; waveguides; cross section geometric parameters; cutoff wavenumber; geometric mean; lowest-order TM mode; pentagonal waveguide; Accuracy; Approximation methods; Hollow waveguides; Microwave antennas; Microwave theory and techniques; Waveguide theory; TM mode; approximate formula; cutoff wavenumber; pentagonal waveguide;
fLanguage
English
Publisher
ieee
Conference_Titel
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location
Hohhot
Print_ISBN
978-1-4244-9436-1
Type
conf
DOI
10.1109/MACE.2011.5987120
Filename
5987120
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