Dual-Band Frequency-Reconfigurable Folded Slot Antenna for Wireless Communications

Author

Chen, Gang ; Yang, Xiao-lin ; Wang, Yan

Author_Institution

Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

1386

Lastpage

1389

Abstract

This letter presents a novel frequency-reconfigurable folded slot antenna that could operate in two modes. Both modes have two resonant frequencies. The first mode resonant frequencies are at 3.4 and 5.27 GHz, and it can be used in WLAN band (5.15-5.35 GHz) and WiMAX band (3.40-3.69 GHz). The second mode operating frequencies are at 2.42 and 5.79 GHz, and they can be used in WLAN band (5.725-5.875 GHz) and Bluetooth band (2.40-2.484 GHz). The simulated results both for the return loss and peak gain agree with the measurements. Both the slot and arms of the proposed folded slot antenna are used to result in a resonant frequency, respectively. The advantage of this design is that the antenna is easy to fabricate, and this antenna could work without a complex bias network and a dc blocking capacitor.

Keywords

UHF antennas; microwave antennas; radio networks; slot antennas; DC blocking capacitor; complex bias network; dual-band frequency-reconfigurable folded slot antenna; first mode resonant frequency; frequency 2.40 GHz to 2.484 GHz; frequency 3.4 GHz; frequency 3.40 GHz to 3.69 GHz; frequency 5.15 GHz to 5.35 GHz; frequency 5.27 GHz; frequency 5.725 GHz to 5.875 GHz; frequency 5.79 GHz; peak gain; return loss; wireless communication; Antenna measurements; Antenna radiation patterns; Frequency measurement; Loss measurement; Resonant frequency; Slot antennas; Folded slot antenna; frequency-reconfigurable antenna; p-i-n diodes;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2227293

Filename

6353125