IEEE Antennas and Wireless Propagation Letters · 2015 · 51 citations · 7 references
EngineeringElectrical EngineeringAntennasMicrowave EngineeringPassive DesignAntenna DesignAntenna GainBroadband AntennasDielectricsMicrowave AntennasSmall AntennasAxial RatioCircularly Polarized Antenna GainCircularly Polarized AntennasDielectric Resonator Antenna DesignDielectric Resonator AntennasDielectric ResonatorsFeedingPeak Gain
In this letter, a compact single-feed circularly polarized dielectric resonator antenna is proposed for X-band applications. The radiator comprises a semi-eccentric annular dielectric resonator (DR), which is a semi-elliptical DR with a hollow elliptical cylinder. A vertical coaxial probe is located adjacent to a cutting surface of the DR to excite the proposed antenna. The two main design parameters, the aspect ratio of the elliptical DR and the feeding position, were optimized, and a prototype of the antenna was fabricated and tested. The experimental results exhibit a -10-dB reflection bandwidth of 29.14% (9.41-12.62 GHz) and a 3-dB axial-ratio bandwidth of 5.71% (10.37-10.98 GHz). The measured peak gain varies from 4.17 to 4.78 dBic.
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Circular-polarised dielectric resonator antennaexcited by dualconformal strips
Kwok Wa Leung, W. C. Wong, Kwai‐Man Luk et al. · Electronics Letters · 2000 · 94 citations