Dual-band circularly polarized antennas for GNSS remote sensing onboard small satellites

Author

Maqsood, Moazam ; Bhandari, Bidhan ; Gao, Steven ; De Vos van Steenwijk, Reynolt ; Unwin, Martin

Author_Institution

Surrey Space Centre, Univ. of Surrey, Guildford, UK

fYear

2010

fDate

21-23 July 2010

Firstpage

86

Lastpage

90

Abstract

Dual-band planar antennas for Global Navigation Satellite System (GNSS) based remote sensing are presented. The antenna designed can cover both L1 and L2 bands, centred at 1.575 GHz and 1.227 GHz, respectively. They will be used onboard satellites remote sensing satellites as part of an instrument to measure ocean roughness by GNSS reflectometry, and the meteorology of the atmosphere by radio occultation amongst other applications. Two antennas (Zenith and Nadir) are presented focussing on different requirements. The Zenith antenna points towards space to receive direct GNSS signals for navigation and is a single-element patch antenna. The Nadir Antenna points towards the earth to pick up reflected signals, and is a dual-band array antenna with a higher gain. Simulation and Measurement results of both antennas are presented.

Keywords

Global Positioning System; microstrip antenna arrays; multifrequency antennas; occultations; planar antenna arrays; polarisation; reflectometry; remote sensing; GNSS; Nadir Antenna; Zenith antenna; circular polarization; dual band planar antenna array; global navigation satellite system; patch antenna; radio occultation; reflectometry; remote sensing onboard small satellites; Antenna measurements; Antenna radiation patterns; Dual band; Feeds; Gain; Global Navigation Satellite Systems; Antennas; Dual-band antennas; GNSS remote sensing; Oceanography; Radio occultation; Stacked patch;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems Networks and Digital Signal Processing (CSNDSP), 2010 7th International Symposium on

Conference_Location

Newcastle upon Tyne

Print_ISBN

978-1-4244-8858-2

Electronic_ISBN

978-1-86135-369-6

Type

conf

Filename

5580454