A novel ring antenna with pattern and frequency reconfigurability

Author

Hang, Lan ; Anguo, Wang ; Nan, Liu

Author_Institution

Sch. of Electron. & Inf. Eng., Tianjin Univ., Tianjin, China

fYear

2010

fDate

8-11 May 2010

Firstpage

1145

Lastpage

1148

Abstract

A novel ring antenna with pattern and frequency reconfigurability is proposed in this paper. Ring structure can increase the effective length of radiation element of an antenna within the finite dimension. The proposed antenna´s dimension with respect to the operating frequency(2 GHz and 2.4 GHz) is 44 mm × 44 mm. Three switches are used in the antenna to achieve different radiation patterns and operating frequencies. When only one of the three switches is closed, the antenna can provide the patterns that point at two of the six directions at 2 GHz. When two of the three switches are closed, the antenna can provide two of the six different patterns at 2.4 GHz. The bandwidths are 1.85 GHz-2.10 GHz for 2 GHz, and 2.2 GHz-2.5 GHz for 2.4 GHz. The antenna can be used in many applications.

Keywords

antenna radiation patterns; switches; bandwidth 1.85 GHz to 2.10 GHz; bandwidth 2.2 GHz to 2.5 GHz; finite dimension; frequency 2 GHz; frequency 2.4 GHz; frequency reconfigurability; pattern reconfigurability; radiation element; ring antenna; ring structure; switches; Antenna accessories; Antenna radiation patterns; Coaxial components; Communication switching; Delay; Frequency; Microstrip antennas; Probes; Radio communication; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5525063

Filename

5525063