Four element multilayer cylindrical dielectric resonator antenna excited by a coaxial probe for wideband applications

Author

Chaudhary, Raghvendra Kumar ; Srivastava, Kumar Vaibhav ; Biswas, Animesh

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India

fYear

2011

fDate

28-30 Jan. 2011

Firstpage

1

Lastpage

5

Abstract

The main objective of the present study is to improve the bandwidth of the dielectric resonator antenna (DRA). A new four-element multilayer cylindrical dielectric resonator antenna (MCDRA) array above the ground plane is proposed here. MCDRA is easy to design and excited with HE_11δ mode excited in each MCDRA by centrally placed dielectric resonator in which TM_01δ mode excited. The effect of design parameters such as permittivity of materials, probe height and arrangement of dielectric layers are investigated and the excited modes (i.e. TM_01δ and HE_11δ) are also been confirmed by simulations. The simulation is performed on Ansoft´s HFSS package. The proposed multilayer cylindrical dielectric resonator antenna (MCDRA) can offer an impedance bandwidth of ~47% for the return loss below -10dB where frequency range is from 4.06 to 6.07 GHz and resonance frequency is 4.3 GHz with monopole like radiation pattern and it is stable in the passband with 4.73 dB gain.

Keywords

antenna radiation patterns; dielectric resonator antennas; monopole antennas; Ansoft HFSS package; HE_11δ mode; TM_01δ mode; coaxial probe; four element multilayer cylindrical dielectric resonator antenna array; frequency 4.06 GHz to 6.07 GHz; gain 4.73 dB; impedance bandwidth; monopole like radiation pattern; resonance frequency; wideband applications; Bandwidth; Dielectric constant; Dielectric resonator antennas; Impedance; Probes; Resonant frequency; Dielectric resonator (DR); dielectric resonator antenna (DRA); monopole-type antenna; multilayer cylindrical dielectric resonator antenna (MCDRA); probe coupling;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (NCC), 2011 National Conference on

Conference_Location

Bangalore

Print_ISBN

978-1-61284-090-1

Type

conf

DOI

10.1109/NCC.2011.5734715

Filename

5734715