Circularly polarized microstrip antenna with slots for Beidou(COMPASS) Navigation System

Author

Tian, Xiao-Qing ; Liu, Shao-bin ; Wei, Yin-Sheng ; Zhang, Xue-yong

Author_Institution

Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

2

fYear

2010

fDate

17-20 Sept. 2010

Firstpage

1

Lastpage

3

Abstract

A single layer, single-feed circularly polarized (CP) microstrip antenna designed with four slits equally spaced and inset at the boundary of the circular patch for Beidou (COMPASS) Navigation System is proposed. The experimental results shown that by simply tuning the lengths of the slotted pairs, two orthogonal near-degenerate resonant modes for CP radiation can be excited. The measured impedance bandwidth corresponding to return loss less than -10dB of 0.09GHz and the 3dB axial ratio (AR) bandwidth of 0.033GHz have been achieved for the antenna which is designed at 2.492GHz. Details of the experimental results are presented and analyzed.

Keywords

antenna feeds; antenna radiation patterns; microstrip antennas; satellite antennas; satellite navigation; Beidou navigation system; CP radiation; bandwidth 0.033 GHz; bandwidth 0.09 GHz; bandwidth 2.492 GHz; circular patch; gain 3 dB; impedance bandwidth; loss 10 dB; near-degenerate resonant modes; single-feed circularly polarized microstrip antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals Systems and Electronics (ISSSE), 2010 International Symposium on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-6352-7

Type

conf

DOI

10.1109/ISSSE.2010.5606969

Filename

5606969