Title :
Leaky-modes leakage from planar circuits
Author :
Kuo-Cheng Chen ; Tzuang, C.-K.C.
Author_Institution :
Inst. of Electr. Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
Inherent leakages in certain two-dimensional planar circuits are related to the propagation of leaky modes, contrasting to the conventional awareness of the association of leaky modes with the uniform waveguides. Both theoretical and experimental studies confirm that the newly found phenomena exist in proximity-coupled or direct-fed two-dimensional planar circuits of irregular shapes. Hence the leaky modes are indispensable when designing a microwave planar circuit.
Keywords :
S-parameters; antenna radiation patterns; microstrip antennas; microstrip lines; transmission line theory; direct-fed two-dimensional planar circuits; leaky modes propagation; leaky-modes leakage; microwave planar circuit design; proximity-coupled planar circuits; radiation patterns; rectangular patch; scattering parameters; straight microstrip line; two-dimensional planar circuits; uniform waveguides; Coupling circuits; Feeds; Frequency; Microstrip; Microwave circuits; Microwave propagation; Planar transmission lines; Planar waveguides; Shape; Transmission line theory;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.602840
