Title :
Optically driven CPW-fed slot antenna for wireless communications
Author :
Khodier, Majid ; Christodoulou, Christos
Author_Institution :
Dept. of Electr. & Comput. Eng., New Mexico Univ., Albuquerque, NM, USA
Abstract :
The characteristics of a micromachined CPW-fed slot antenna array driven by converting optical power into microwave power using RF photodetectors are presented. The CPW line is connected to the active surface of the photodetector, from which the microwave power propagates to feed the radiating slot. The photodetector is fed via an optical fiber from beneath. The output microwave frequency from the photodetector is in the range 15 GHz-30 GHz. The analysis is performed using IE3D(R). The scattering parameters and radiation patterns are obtained for one antenna element and for a four-element antenna array. The results show a very good bandwidth and radiation characteristics of this antenna
Keywords :
S-parameters; antenna radiation patterns; coplanar waveguides; microwave antenna arrays; optical fibres; photodetectors; radiocommunication; slot antenna arrays; CPW line; IE3D; RF photodetector; active surface; antenna element; bandwidth; four-element antenna array; micromachined CPW-fed slot antenna array; microwave power; optical fiber; optical power; optically driven CPW-fed slot antenna; output microwave frequency; radiating slot; radiation characteristics; radiation patterns; scattering parameters; wireless communications; Antennas and propagation; Coplanar waveguides; Microwave antenna arrays; Microwave propagation; Optical arrays; Optical scattering; Photodetectors; Radio frequency; Slot antennas; Wireless communication;
Conference_Titel :
Antennas and Propagation for Wireless Communications, 2000 IEEE-APS Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-5894-5
DOI :
10.1109/APWC.2000.900156
