Title :
First demonstration of a conductor backed coplanar waveguide fed quasi-Yagi antenna
Author :
Leong, K.M.K.H. ; Yongxi Qian ; Itoh, T.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A planar microstrip fed quasi-Yagi antenna has been developed, which demonstrates excellent radiation characteristics over a broad frequency range. In this paper, the concepts that have made the microstrip quasi-Yagi so successful are applied in the development of a conductor backed coplanar waveguide (CB-CPW) antenna with the same desirable radiation characteristics. An X-band prototype with CB-CPW feed is presented with a measured bandwidth of 27%, 14 dB front-to-back ratio, and lower than -16 dB cross polarization level at 9 GHz.
Keywords :
Yagi antenna arrays; antenna feeds; antenna radiation patterns; coplanar waveguides; planar antenna arrays; 9 GHz; CB-CPW feed; SHF; X-band prototype antenna; conductor backed coplanar waveguide; conductor backed coplanar waveguide antenna; coplanar waveguide fed quasi-Yagi antenna; cross polarization level; frequency range; front-to-back ratio; measured bandwidth; microstrip quasi-Yagi antenna; planar microstrip antenna; radiation characteristics; Antenna measurements; Bandwidth; Conductors; Coplanar waveguides; Dipole antennas; Frequency; Microstrip antennas; Prototypes; Reflector antennas; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.874473
