Frequency-tunable ring dielectric resonator antenna excited by waveguide

Author

Voloshyn, A. ; Prokopenko, Yu.

Author_Institution

Phys. & Biomed. Electron. Dept., Nat. Tech. Univ. of Ukraine KPI, Kiev, Ukraine

fYear

2014

fDate

15-18 April 2014

Firstpage

58

Lastpage

61

Abstract

A frequency tuning method of ring dielectric resonator antenna is presented in the paper. The basic of proposed method is micro mechanical alteration of the composite ring dielectric resonator. Advantages of the proposed method are the wide range of adjustments and increasing of the radiation efficiency of the antenna. Design of the tunable dielectric resonator antenna excited by waveguide in the standing wave mode is investigated. The basic antenna characteristics, and also analysis of dependencies of the antenna´s central operating frequency, voltage standing wave ratio, bandwidth and radiation pattern versus the relative position of the ring dielectric resonator parts are presented. The influence of the inner to outer ring radius ratio on the efficiency of frequency tuning, radiation efficiency and bandwidth are investigated.

Keywords

antenna radiation patterns; dielectric resonator antennas; waveguide antennas; frequency tuning; frequency tuning method; frequency-tunable ring dielectric resonator antenna; micro mechanical alteration; operating frequency; radiation efficiency; radiation pattern; standing wave mode; voltage standing wave ratio; Antenna radiation patterns; Bandwidth; Dielectric resonator antennas; Dielectrics; Optical resonators; Resonant frequency; Tuning; antenna characteristics; dielectric resonator antenna; frequency tuning; ring dielectric resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Nanotechnology (ELNANO), 2014 IEEE 34th International Conference on

Conference_Location

Kyiv

Print_ISBN

978-1-4799-4581-8

Type

conf

DOI

10.1109/ELNANO.2014.6873962

Filename

6873962