TY - JOUR
T1 - A Low-Profile, Size-Reduced, High Gain, Circularly Polarized Anti-Jam Global Positioning System Antenna Array
AU - Evans, Grant
AU - Nemec, Jack
AU - Obi, Victor
AU - Lim, Sungkyun
N1 - Publisher Copyright:
© 2024, Electromagnetics Academy. All rights reserved.
PY - 2024
Y1 - 2024
N2 - A high gain, circularly polarized array antenna is proposed with low profile and compact size using T-shaped top loading, t-matching, and a reflector. Composed of 4 individual elements, the array has a −3-dB impedance bandwidth of 1.39% (1.564–1.586 GHz) and a 3-dB axial ratio beamwidth of 79◦ (−42◦ –37◦) in measurement. The front-to-side ratio of the total realized gain pattern is 27.1 dB, and the front-to-back ratio is 25.5 dB. The peak realized gain is 11.0 dBi in the forward (+z) direction. The proposed antenna is a good candidate for functioning as an anti-jam antenna in global positioning system, helping to block out jamming signals coming from the horizontal (90◦ and 270◦) planes.
AB - A high gain, circularly polarized array antenna is proposed with low profile and compact size using T-shaped top loading, t-matching, and a reflector. Composed of 4 individual elements, the array has a −3-dB impedance bandwidth of 1.39% (1.564–1.586 GHz) and a 3-dB axial ratio beamwidth of 79◦ (−42◦ –37◦) in measurement. The front-to-side ratio of the total realized gain pattern is 27.1 dB, and the front-to-back ratio is 25.5 dB. The peak realized gain is 11.0 dBi in the forward (+z) direction. The proposed antenna is a good candidate for functioning as an anti-jam antenna in global positioning system, helping to block out jamming signals coming from the horizontal (90◦ and 270◦) planes.
UR - http://www.scopus.com/inward/record.url?scp=85178948991&partnerID=8YFLogxK
U2 - 10.2528/PIERC23100802
DO - 10.2528/PIERC23100802
M3 - Article
AN - SCOPUS:85178948991
SN - 1937-8718
VL - 139
SP - 79
EP - 86
JO - Progress In Electromagnetics Research C
JF - Progress In Electromagnetics Research C
ER -