Characteristics of space and surface waves in a multilayered structure [microstrip antennas]

Author

Bhattacharyya, Arun K.

Author_Institution

Dept. of Electr. Eng. Saskatchewan Univ., Saskatoon, Sask., Canada

Volume

38

Issue

8

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

1231

Lastpage

1238

Abstract

Characteristics of space- and surface-wave fields produced by an electromagnetic source in a multilayered structure are explored. Using the integral transformation technique it is shown that the space and surface-wave modes are orthogonal along the longitudinal direction with respect to an appropriate weighting function. It is demonstrated that these properties, together with reciprocity, can be utilized to determine the amplitudes of various surface-wave modes produced by an arbitrarily shaped source. Numerical results for the space- and surface-wave power for a circular patch antenna are presented. The study may find application for millimeter-wave printed antennas where the surface waves will play an important role in determining the radiation and impedance characteristics

Keywords

antenna theory; microstrip antennas; Hertzian magnetic dipole; arbitrarily shaped source; circular patch antenna; electromagnetic source; impedance characteristics; integral transformation technique; microstrip antennas; millimeter-wave printed antennas; multilayered structure; radiation characteristics; space waves; surface waves; weighting function; Dielectric losses; Directive antennas; Electromagnetic fields; Electromagnetic radiation; Microstrip antennas; Millimeter wave technology; Patch antennas; Surface impedance; Surface resistance; Surface waves;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.56959

Filename

56959