Dual-band antenna design for GPS and UMTS applications

Author

Sim, Chow-Yen-Desmond ; Lu, Shao-Chang ; Row, Jeen-Sheen ; Chen, Shing-Hau

Author_Institution

Chienkuo Technol. Univ., Changhua

fYear

2007

fDate

9-15 June 2007

Firstpage

3045

Lastpage

3048

Abstract

In this paper, a new design of an integrated antenna for the applications of GPS and UMTS is proposed. A broadband monopolar patch antenna with conical radiation patterns [5] is used as a radiating element for UMTS operation, and its radiating patch is placed at the inner-slot area of a circular-polarized (CP) square-ring microstrip element for GPS operation. Consequently, the two antenna elements of the proposed design can be fabricated on a single printed circuit board. In order to obtain the isolation of more than 20 dB between the two input ports, a 3rd Order Butterworth low pass filter (LPF) is designed and placed at the input port of the GPS antenna element. Details of the proposed design and obtained results are presented and discussed.

Keywords

3G mobile communication; Butterworth filters; Global Positioning System; antenna radiation patterns; broadband antennas; low-pass filters; microstrip antennas; multifrequency antennas; polarisation; 3rd order Butterworth low pass filter; GPS; UMTS; broadband monopolar patch antenna; circular-polarized square-ring microstrip element; conical radiation patterns; dual-band antenna; single printed circuit board; 3G mobile communication; Antenna radiation patterns; Bandwidth; Dual band; Frequency; Global Positioning System; Microstrip antennas; Patch antennas; Probes; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-0877-1

Electronic_ISBN

978-1-4244-0878-8

Type

conf

DOI

10.1109/APS.2007.4396178

Filename

4396178