Title: Resonances for Microstrip Transmission Lines


		          Faouzi M. Triki
		      Department of Mathematics 
		      Michigan State University 
		     East Lansing, MI 48824-1027 
		      E-mail: triki@math.msu.edu
              Web page: http://www.math.msu.edu/~triki/


Abstract:
In this paper we discuss resonance problems inherent in microstrip 
transmission lines mounted on planar open waveguides. Microstrip transmission 
lines are widely used in printed-circuit technology and antenna industry. 
Since microstrip transmission lines are highly resonant structures, an 
accurate determination of resonances is of great importance. Our aim in this 
work is to rigorously derive asymptotic formulae for resonances associated 
with the full Maxwell's equations in a microstrip transmission line mounted 
on a planar open waveguide when the width of the microstrip transmission line 
goes to zero.