Title :
Dielectric resonator antenna for angle diversity
Author :
Mohit, Kumar ; Gupta, Vibha Rani ; Rout, S.K.
Author_Institution :
Dept. of Electron. & Commun. Eng., Birla Inst. of Technol., Ranchi, India
Abstract :
This paper presents a two element dielectric resonator antenna configuration, designed by using a magneto-dielectric material, excited by single co-axial feeding technique, by keeping them at the both sides of the co-axial probe for achieving the angle diversity. This material has been designed such that its temperature coefficient value is -1.02ppm/°C, which is near to zero. The microwave dielectric constant (εr) and permeability (μr) are determined by Hakki-Coleman dielectric resonator method and Nicholson-Ross-Weir conversion technique and found to be 8.02 and 1.64 respectively. The designed antenna shows its radiation toward two directions 46° and 308° at the resonance frequency of 4.81GHz, hence can be utilised for angle diversity. The bandwidth of the antenna is 400MHz, which is suitable for the application of Radiolocation and Fixed Mobile & Satellite communication. The obtained gain on both radiated directions is 2.93 dB and 3.72 dB respectively. This proposed antenna has been fabricated and there is good agreement between the simulated and measured results.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; dielectric materials; dielectric resonator antennas; microwave antennas; permeability; permittivity; probes; Hakki-Coleman dielectric resonator method; Nicholson-Ross-Weir conversion technique; angle diversity; antenna radiation; bandwidth 400 MHz; coaxial probe; dielectric resonator antenna configuration; fixed mobile & satellite communication application; frequency 4.81 GHz; gain 2.93 dB to 3.72 dB; magnetodielectric material; microwave dielectric constant; permeability; radiolocation application; single coaxial feeding technique; Antenna measurements; Dielectric resonator antennas; Dielectrics; Extraterrestrial measurements; Microwave antennas; Microwave theory and techniques; Resonant frequency; Angle diversity; Dielectric resonator antenna (DRA); Thermally stable material;
Conference_Titel :
Signal Processing and Communication (ICSC), 2015 International Conference on
Conference_Location :
Noida
Print_ISBN :
978-1-4799-6760-5
DOI :
10.1109/ICSPCom.2015.7150624