Testing electrically small antennas with using a fiber optic to RF transducer

Author

Scannavini, A. ; Foged, Lars ; Scialacqua, L.

Author_Institution

Microwave Vision Italy, Pomezia, Italy

fYear

2014

fDate

6-11 July 2014

Firstpage

271

Lastpage

272

Abstract

The paper presents how the effect of the coax cable can be resolved when testing electrically small antennas in a multi-probe antenna measurement system [1]. The MVG StarLab15 system setup was used for such testing activity. It was equipped with a fiber optic to RF transducer which was directly connected to the AUT (Antenna under Test). The StarLab15 was validated in terms of its system performances when using the transducer in place of the coax cable. The fiber optic to RF transducer is 20×23.5×10mm in size and it is powered by a DC voltage through a fiber optic. Not-chocked monopole antennas were used as AUTs at 1GHz and 2GHz resonance frequency. Comparison between the FoMs measured with using metallic coax cable, EMI dressed coax cable and fiber optic to RF transducer is also reported. This work was done by using the INSIGHT SW tool [2] which allowed in reconstructing the current distributions of the antenna from the measured data.

Keywords

UHF antennas; antenna testing; coaxial cables; fibre optic sensors; monopole antennas; transducers; AUT; DC voltage; INSIGHT SW tool; MVG StarLab15 system; RF transducer; antenna under test; coax cable; electrically small antenna testing; fiber optic; frequency 1 GHz; frequency 2 GHz; multiprobe antenna measurement system; not-chocked monopole antennas; resonance frequency; Antenna measurements; Current measurement; Optical fiber cables; Optical fibers; Radio frequency; Testing; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6904467

Filename

6904467