Title :
On the correct expansion of leaky modes of planar transmission lines in surface-wave waveguide modes
Author :
Marqués, R. ; Mesa, F. ; Horno, M.
Author_Institution :
Microwave Group. Department of Electronics and Electromagnetism, University Of Seville, Avda. Reina Mercedes, s/n. 41012 Seville. (Spain). Fax: 34-5-4239434; Tphne.: 34-5-4616615
Abstract :
The proper expansion of the leaky modes of planar transmission lines in the surface-modes of the housing waveguide is discussed and analysed. It is shown that, for a given frequency, all the waveguide modes above cutoff can radiate laterally. The previously published results about leaky modes in planar transmission lines become somewhat different when the criterion shown here is used.
Keywords :
Cutoff frequency; Electromagnetic waveguides; Green´s function methods; Microstrip; Planar transmission lines; Planar waveguides; Power transmission lines; Propagation constant; Surface waves; Transmission lines;
Conference_Titel :
Microwave Conference, 1993. 23rd European
Conference_Location :
Madrid, Spain
DOI :
10.1109/EUMA.1993.336586
