Title :
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
fDate :
11/1/1990 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
