Title :
A low-loss unidirectional dielectric radiator (UDR) for antenna and space power combining circuits
Author :
Wu, Ke ; Li, Ji ; Bosisio, Renato G.
Author_Institution :
Dept. de Genie Electr. et de Genie Inf., Ecole Polytech., Montreal, Que., Canada
fDate :
2/1/1994 12:00:00 AM
Abstract :
A low-loss unidirectional dielectric radiator (UDR) is proposed for applications to antenna and space power combining circuits. The operating principle of this novel radiator is explained in detail. Experimental prototypes using polystyrene are fabricated and measured around 9.5 GHz. A coaxial open-ended probe is used to excite this resonant radiator. A detailed study based on experimental results demonstrates interesting characteristics of a broad-beam with gain of up to 10 dBi and low cross-polarization. This type of radiator may find millimeter-wave applications in mobile and satellite communication systems
Keywords :
waveguide antennas; waveguide components; 9.5 GHz; broad-beam gain; coaxial open-ended probe; cross-polarization; low-loss unidirectional dielectric radiator; millimeter-wave applications; mobile communication systems; polystyrene; power combining circuits; resonant radiator; satellite communication systems; Antenna measurements; Circuits; Coaxial components; Dielectric measurements; Millimeter wave communication; Millimeter wave measurements; Probes; Prototypes; Resonance; Satellite communication;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
