Title :
Measurement of electrically small antennas via optical fibre
Author :
Alexander, Martin ; Loh, Tian Hong ; Betancort, Andrés López
Author_Institution :
Commun. Technol. Group, Nat. Phys. Lab., Teddington, UK
Abstract :
Electrically small antennas for wireless communications applications are prone to excite common mode currents on cables connected to them for measuring their performance. A miniature RF-optical transducer enables an optical fibre connection to the antenna, thereby eliminating the large distortion associated with the unwanted radiation from a coaxial cable. This opto-electric field sensor system operates from 300 kHz to 10 GHz. Results of a small UWB monopole antenna with coaxial cable and with optical fibre are compared.
Keywords :
antenna radiation patterns; antenna testing; coaxial cables; electro-optical devices; fibre optic sensors; monopole antennas; ultra wideband antennas; UWB monopole antenna; coaxial cable; electrically small antennas; frequency 300 kHz to 10 GHz; miniature RF-optical transducer; optical fibre connection; opto-electric field sensor system; wireless communications; Antenna measurements; Coaxial cables; Communication cables; Current measurement; Distortion measurement; Electric variables measurement; Optical distortion; Optical fibers; Transducers; Wireless communication; OEFS; RF-optical transducer; UWB; electrically small antennas; opto-electric field sensor; radiation pattern;
Conference_Titel :
Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-2720-8
Electronic_ISBN :
978-1-4244-2721-5
DOI :
10.1109/LAPC.2009.5352516
