Dual-Frequency Ring Patch Antennas for GPS

Author

Kumagai, Shoichi ; Kazama, Yasuhiro ; Goto, Naohisa

Author_Institution

Dept. of R&D, Takushoku Univ., Tokyo

fYear

2005

fDate

7-7 Sept. 2005

Firstpage

601

Lastpage

605

Abstract

Global positioning system (GPS) is widely used for car-navigation system all over the world. At present, GPS system employs only the frequency of 1.57542 GHz (L1) in the civilian use. Recently, to improve the positioning accuracy, GPS modernization enterprise is scheduled and executing. For the final stage new GPS satellites which is launched in 2014, additional two new frequency signal transmitters that are for the frequency of 1.22760 GHz (L2) and 1.17645 GHz (LS) is equipped. Prior to the final stage, the first stage new GPS satellites are launched in July, 2005. This satellite equips the transmitters for the frequencies of 1.57542 GHz (L1) and 1.22760 GHz (L2). In this paper, we propose compact, small, and low-profile dual-frequency operation microstrip antennas for this first stage new GPS system

Keywords

Global Positioning System; microstrip antennas; multifrequency antennas; satellite antennas; 1.17645 GHz; 1.22760 GHz; 1.57542 GHz; GPS modernization enterprise; car-navigation system; dual-frequency operation microstrip antennas; dual-frequency ring patch antennas; global positioning system; signal transmitters; Antenna feeds; Aperture antennas; Eigenvalues and eigenfunctions; Frequency; Global Positioning System; Microstrip antennas; Patch antennas; Radio transmitters; Satellite broadcasting; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems, 2005. 2nd International Symposium on

Conference_Location

Siena

Print_ISBN

0-7803-9206-X

Type

conf

DOI

10.1109/ISWCS.2005.1547774

Filename

1547774