Tunable Dielectric Resonator Antennas Using Voltage-Controlled Mechanical Deformation

A. Mahanfar; Carlo Menon; R.G. Vaughan; Federico Carpi; M. Parameswaran; Kambiz Daheshpour

doi:10.4028/www.scientific.net/AST.56.614

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Tunable Dielectric Resonator Antennas Using Voltage-Controlled Mechanical Deformation
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 56Tunable Dielectric Resonator Antennas Using...

Tunable Dielectric Resonator Antennas Using Voltage-Controlled Mechanical Deformation

Abstract:

We present a new concept for compact, tunable antennas. Traditional approaches have circuits and switchable elements which can be bulky and lossy. Here we investigate structures which offer direct tuning through voltage-controlled deformation of the radiating structure itself. The antenna is a dielectric resonator (DRA), where the antenna impedance and tuning depends on the shape of the dielectric. The deformation action is through using electro-active polymer (EAP) for the dielectric. EAPs have promising properties for smart antennas and ongoing developments are continuing to improve its suitability.