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Wide band circularly polarized antenna for GNSS signals detection

Published online by Cambridge University Press:  20 January 2025

Rim Berro Open the ORCID record for Rim Berro [Opens in a new window] ,
Luca Persano ,
Marwan Jadid ,
Nhu Huan Nguyen ,
Christophe Delaveaud ,
Tan Phu Vuong  and
Pascal Xavier
Rim Berro*
Affiliation:
Lab. CROMA, 3, Parvis Louis Néel, CS 50257 - 38016 Grenoble Cedex 1, France
Luca Persano
Affiliation:
Lab. CROMA, 3, Parvis Louis Néel, CS 50257 - 38016 Grenoble Cedex 1, France
Marwan Jadid
Affiliation:
Lab. Lapci, CEA-Leti, 17 Av. des Martyrs, 38054 Grenoble, France
Nhu Huan Nguyen
Affiliation:
Lab. CROMA, 3, Parvis Louis Néel, CS 50257 - 38016 Grenoble Cedex 1, France
Christophe Delaveaud
Affiliation:
Lab. Lapci, CEA-Leti, 17 Av. des Martyrs, 38054 Grenoble, France
Tan Phu Vuong
Affiliation:
Lab. CROMA, 3, Parvis Louis Néel, CS 50257 - 38016 Grenoble Cedex 1, France
Pascal Xavier
Affiliation:
Lab. CROMA, 3, Parvis Louis Néel, CS 50257 - 38016 Grenoble Cedex 1, France
*
Corresponding author: Rim Berro; Email: [email protected]
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Abstract

In this paper, the design and optimization of a circularly polarized antenna based on two crossed dipoles in phase quadrature for Global Navigation Satellite System (GNSS) wide band application has been investigated. The proposed design is single fed and relies on parasitic structures to achieve wide band coverage on the GPS standard bands L1 (1559–1610 MHz) and L5 (1164–1189 MHz). Full-wave simulations have been used to compute the radiation properties and the impedance of the antenna. A prototype was manufactured, and good agreement has been observed between the simulated results and measurement for both radiation pattern and reflection coefficient.

The antenna achieves a −10 dB impedance bandwidth of $56.97\%$ covering the band 1164–1610 MHz, and an axial ratio that covers the L5 band ranging between 7 dB and 2.8 dB from 1.164 GHz to 1.3 GHz while maintaining a value below 2.7 dB across the entire L1 band. The antenna occupies a volume of $\,99\, \,\times\,99\, \times 50$ mm3. It has been tested in real conditions during the 23rd French National Microwave Days (JNM) student competition. A GNSS signal receiver has been connected to the antenna. The antenna has been evaluated based on the number of connections it could achieve over a duration of 30 s.

Keywords

Antenna DesignGNSS ApplicationsModelling and Measurements
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , First View , pp. 1 - 6
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Copyright
© The Author(s), 2025. Published by Cambridge University Press in association with The European Microwave Association.

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References

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