Analysis of untilted edge slots excited by tilted wires

Author

Hashemi-Yeganeh, Shahrokh ; Elliott, Robert S.

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

38

Issue

11

fYear

1990

fDate

11/1/1990 12:00:00 AM

Firstpage

1737

Lastpage

1745

Abstract

An untilted narrow wall slot, cut between a pair of tilted strips inside a rectangular waveguide, has been analyzed. The combination is excited internally by a TE₁₀ mode and the slot radiates externally. This slot/tilted-strips element behaves like a shunt admittance on an equivalent transmission line. This feature can be utilized to design arrays of such slots. Coupled integral equations are derived and solved, using the method of moments, to obtain the slot aperture E-field and the internal forward and backward scattering. Numerical and experimental results are presented to validate the method and to discover the range of useful dimensions for this composite element

Keywords

antenna theory; microwave antenna arrays; waveguide antennas; TE₁₀ mode; antenna arrays; coupled integral equations; equivalent transmission line; internal backward scattering; internal forward scattering; method of moments; numerical results; rectangular waveguide; shunt admittance; slot antennas; slot aperture E-field; tilted wires; untilted edge slots; untilted narrow wall slot; Admittance; Apertures; Couplings; Integral equations; Moment methods; Rectangular waveguides; Scattering; Tellurium; Transmission lines; Wires;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.102734

Filename

102734