A generalized method for distinguishing between radiation and surface-wave losses in microstrip discontinuities

Author

Horng, Tzyy-Sheng ; Wu, Shih-Chang ; Yang, Hung-Yu ; Alexopoulos, Nicolaos G.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

38

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1800

Lastpage

1807

Abstract

A generalized method for calculating both radiation and surface-wave losses is developed for microstrip discontinuities. The losses are determined by a rigorous Poynting vector analysis where the current distribution over the microstrip discontinuities is a result of a full-wave moment method solution. The power loss mechanism of such microstrip discontinuities as open-end, right-angle-bend, gap and stub lines, EMC lines, and rectangular patches are investigated. A self-consistency check of the result based on power conservation is performed to confirm the numerical results. It is found that, above a certain frequency, the surface-wave loss becomes more important than the radiation loss

Keywords

losses; strip lines; waveguide theory; EMC lines; Poynting vector analysis; current distribution; full-wave moment method solution; gap lines; generalized method; microstrip discontinuities; open-end; power conservation; power loss mechanism; radiation loss; rectangular patches; right-angle-bend; stub lines; surface-wave losses; Current distribution; Electromagnetic fields; Microstrip antennas; Moment methods; Printed circuits; Sea surface; Surface impedance; Surface resistance; Surface treatment; Surface waves;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.64559

Filename

64559