Axial ratio correction for GNSS antennas in asymetrically coupled environments

Authors

Adam Narbudowicz, Technological University DublinFollow
Max Ammann, Technological University DublinFollow
Dirk Heberling, RWTH Aachen UniversityFollow

Document Type

Conference Paper

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

2.2 ELECTRICAL, ELECTRONIC, INFORMATION ENGINEERING

Publication Details

https://ieeexplore.ieee.org/document/8073353

https://doi.org/10.1109/APUSNCURSINRSM.2017.8073353

Abstract

The paper demonstrates a technique to correct the axial ratio of dual-fed circularly-polarized antennas in the presence of strong coupling with surrounding components or asymmetrically reduced ground plane. It demonstrated - based on a standard GPS L1 patch antenna - that for certain situations a phase shift of up to 135° may be beneficial compared to the routinely used 90°, allowing for AR improvement from 7.8 dB (for 90°) to 2.1 dB (135°).

DOI

https://doi.org/10.1109/APUSNCURSINRSM.2017.8073353

Recommended Citation

A. Narbudowicz, M. J. Ammann and D. Heberling, "Axial ratio correction for GNSS antennas in asymetrically coupled environments," 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017, pp. 2621-2622, doi: 10.1109/APUSNCURSINRSM.2017.8073353.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.