Title :
Novel selected modes on the conductor-backed slotline
Author :
Zehentner, J. ; Machac, J. ; Mrkvica, J.
Author_Institution :
Czech Tech. Univ., Prague, Czech Republic
Abstract :
This paper presents a detailed full-wave analysis of the conductor-backed slotline. The occurrence of an even dominant mode is revealed. This mode may propagate alone from dc up to the frequency at which the first leaky mode sets up. Nonphysical solutions of the dispersion equation and also the second leaky mode, taking power in the substrate, are identified. The first odd space leaky mode revealed on the CBSL enables an entirely uniplanar leaky wave antenna to be designed. The dispersion characteristics of particular revealed modes and their field distributions on the cross-sectional plane are also presented.
Keywords :
dispersion (wave); leaky wave antennas; slot line components; slot lines; CBSL; conductor-backed slotline; cross-sectional plane; dispersion characteristics; dispersion equation; even dominant mode; field distributions; full-wave analysis; leaky mode; power leakage; printed-circuit lines; uniplanar leaky wave antenna; Coupling circuits; Dielectric substrates; Equations; Frequency; Leaky wave antennas; Microwave integrated circuits; Permittivity; Power transmission lines; Propagation constant; Slotline;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011789
