Title :
A new inverted F antenna with a ring dielectric resonator
Author :
Chen, Zhi Ning ; Hirasawa, Kazuhiro ; Leung, Kwok-Wa ; Luk, Kwai-Man
Author_Institution :
Inst. of Inf. Sci. & Electron., Tsukuba Univ., Ibaraki, Japan
fDate :
7/1/1999 12:00:00 AM
Abstract :
A new antenna combining the use of a ring dielectric resonator (DR) and an inverted F antenna (IFA) is proposed and investigated experimentally. In this application, the DR not only fills the role of a dielectric coating, but also serves the function of a radiator. The measurements of input impedance, return loss, and radiation pattern for both the IFA with the DR (IFA-DR) and the wire IFA (WIFA) are conducted at the S band. The measured data demonstrate that the IFA-DR operates in multiple resonance modes unlike a WIFA. Compared with the WIFA, the one proposed here incorporating a ring DR and an IFA is more attractive in having a smaller size and a larger impedance bandwidth
Keywords :
UHF antennas; antenna radiation patterns; antenna testing; dielectric resonators; electric impedance; electric impedance measurement; loss measurement; mobile antennas; wire antennas; IFA-DR; S band; WIFA; dielectric coating; impedance bandwidth; input impedance; inverted F antenna; measured data; measurements; mobile communications; multiple resonance modes; radiation pattern; radiator; return loss; ring dielectric resonator; wire IFA; Antenna measurements; Antenna radiation patterns; Coatings; Dielectric loss measurement; Dielectric measurements; Dielectric resonator antennas; Impedance measurement; Loss measurement; Resonance; Wire;
Journal_Title :
Vehicular Technology, IEEE Transactions on
