Analysis of radiation from the tapered slot antenna

Author

Safavi-naini, Safieddin ; Behruzi, G.

Author_Institution

Inst. of Electr. Eng., Tehran Univ., Iran

fYear

1989

Firstpage

367

Abstract

Based upon the coupled mode theory and spectral theory of diffraction by a dielectric half-plane (DHP), a novel method is presented for the determination of the radiation characteristics of a tapered slot antenna. The first step consists of obtaining an estimate for the slot electric field and surface electric current on the metallic part for a long and smooth tapered section between the input slot and a wide fictitious slot terminated by a load with specified reflection coefficient. In the second step this structure is truncated at z=0, and then the radiation of truncated surface electric current in the presence of a DHP is analyzed. The method was applied to several cases of practical interest, and in general the agreement between theoretical predictions and practice was found to be very satisfactory.<>

Keywords

antenna radiation patterns; antenna theory; electromagnetic wave diffraction; waveguide antennas; EM wave diffraction; coupled mode theory; dielectric half-plane; input slot; radiation characteristics; slot electric field; specified reflection coefficient; spectral theory of diffraction; surface electric current; tapered slot antenna; waveguide antennas; wide fictitious slot; Amplitude estimation; Art; Slot antennas; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1989. AP-S. Digest

Conference_Location

San Jose, CA, USA

Type

conf

DOI

10.1109/APS.1989.134695

Filename

134695