Analysis of cascaded sections of T junctions between rectangular and circular waveguides

Author

Das, B.N. ; Rao, P. V D Somasekhar

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India

Volume

39

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

92

Lastpage

97

Abstract

An analysis of the cascaded sections of a number of slot-coupled T junctions between rectangular and circular waveguides is presented, taking into account the mutual interactions of all possible modes generated by the discontinuities as well as the effect of wall thickness. The formulation is based on solving a set of coupled integral equations resulting from the boundary conditions at the two interfaces of the waveguide sections representing the coupling slots. The integral equations are transformed into sets of matrix equations using the moment method with entire basis and testing functions. Numerical results on input VSWR (voltage standing wave ratio) and coupling are presented for the case of a cascaded section of two air-filled T junctions for different frequencies and different values of interelement spacing

Keywords

waveguide couplers; waveguide theory; T junctions between rectangular and circular waveguides; air-filled T junctions; all possible modes; boundary conditions; cascaded sections; coupling; coupling slots; discontinuities; effect of wall thickness; frequencies; input VSWR; interelement spacing; moment method; mutual interactions; set of coupled integral equations; sets of matrix equations; slot-coupled T junctions; voltage standing wave ratio; Boundary conditions; Frequency; Integral equations; Moment methods; Rectangular waveguides; Testing; Transmission line matrix methods; Voltage; Waveguide discontinuities; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.64610

Filename

64610