Novel wide tunable dual-band reconfigurable chassis-antenna for future mobile terminals

Author

Hu, Z.H. ; Kelly, J. ; Song, C.T.P. ; Hall, P.S. ; Gardner, P.

Author_Institution

Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK

fYear

2010

fDate

12-16 April 2010

Firstpage

1

Lastpage

5

Abstract

This paper presents a novel reconfigurable chassis-antenna for use in current and future wireless communication systems. The antenna uses a pair of coupling elements which give independent and versatile dual frequency and bandwidth reconfiguration, using a number of external matching circuits. The matching circuit incorporates a pair of varactors and several fixed inductors. Simulations suggest that the antenna has a total tuning range of 2854 MHz (from 442 MHz to 2896 MHz). The antenna maintains a return loss above 6 dB, when tuning across this range. An equivalent circuit has been developed for the two port chassis-antenna. In the final section of the paper, the external matching circuit is connected to the equivalent circuit and the impedance behaviour is compared with that obtained through the antenna simulation with the matching circuit.

Keywords

Bandwidth; Circuit optimization; Circuit simulation; Coupling circuits; Dual band; Equivalent circuits; Frequency; Tunable circuits and devices; Varactors; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2010 Proceedings of the Fourth European Conference on

Conference_Location

Barcelona, Spain

Print_ISBN

978-1-4244-6431-9

Electronic_ISBN

978-84-7653-472-4

Type

conf

Filename

5505013