Design of a UWB printed G-shaped monopole antenna using characteristic modes

Author

Gozasht, Farhad ; Po, Kevin ; Mohan, Ananda Sanagavarapu

Author_Institution

Centre for Health Technol., Univ. of Technol. Sydney (UTS), Sydney, NSW, Australia

fYear

2014

fDate

4-6 March 2014

Firstpage

332

Lastpage

335

Abstract

This paper presents a novel G-shaped compact monopole UWB antenna printed on FR4 substrate with coplanar waveguide (CPW) feeding. The proposed antenna operates over the frequency band between 3 and 11 GHz offering a fractional impedance bandwidth of around 110 %. The antenna is designed by analysing the modal currents calculated using the characteristic mode theory. Experimental results on reflection coefficient agree well with simulations and the proposed antenna has a desirable gain and radiation pattern characteristics over the ultra-wideband frequency range. The overall dimensions of the antenna are 28 × 35 × 1.6 mm³ which makes it a good candidate for many ultra-wide-band radio applications.

Keywords

antenna radiation patterns; coplanar waveguides; microstrip antennas; monopole antennas; planar antennas; reflector antenna feeds; ultra wideband antennas; CPW feeding; FR4 substrate; UWB printed G-shaped monopole antenna design; characteristic mode theory; coplanar waveguide feeding; fractional impedance bandwidth; frequency 3 GHz to 11 GHz; radiation pattern characteristics; reflection coefficient; ultrawideband frequency range; ultrawideband radio applications; Antenna feeds; Antenna radiation patterns; Coplanar waveguides; Reflector antennas; Ultra wideband antennas; CPW feed; characteristic modes; printed monopole antenna; ultra wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT), 2014 International Workshop on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4799-2331-1

Type

conf

DOI

10.1109/IWAT.2014.6958679

Filename

6958679