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

fYear

2009

fDate

16-17 Nov. 2009

Firstpage

653

Lastpage

656

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/LAPC.2009.5352516

Filename

5352516