TY - JOUR
T1 - A Broadband Printed Monofilar Square Spiral Antenna
T2 - A circularly polarized low-profile antenna
AU - Luo, Qi
AU - Gao, Steven
AU - Sobhy, Mohammed
AU - Li, Jianzhou
AU - Wei, Gao
AU - Xu, Jiadong
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/4
Y1 - 2017/4
N2 - This article presents a novel circularly polarized (CP) wide-band printed monofilar square spiral antenna (MSSA) with a low profile and 50-X input impedance, as well as a technique to improve the overlapped bandwidth and reduce the profile of a conventional MSSA. To extend the application of the present design to an array antenna, a square cavity is introduced. This simple and low-cost approach results in a wide-band printed MSSA with high directivity. To verify this design concept, antenna prototypes operating at Ku frequency band have been designed and fabricated. Simulation and measurement results show that the present designs have more than 16% 10-dB return loss and 3-dB axial ratio (AR) bandwidth within the same frequency range with high radiation efficiency. The beam-scanning performance of the array antenna using the present design was investigated, and the calculated results suggest that good CP performance is obtained during the beam scanning. The advantages of our MSSA design are wide overlapped bandwidth, low profile, flexibility in antenna performance tuning, and easy fabrication. The present antennas have the potential to be used in small satellites such as microsatellites and CubeSats for tracking, command function, and data downlink applications.
AB - This article presents a novel circularly polarized (CP) wide-band printed monofilar square spiral antenna (MSSA) with a low profile and 50-X input impedance, as well as a technique to improve the overlapped bandwidth and reduce the profile of a conventional MSSA. To extend the application of the present design to an array antenna, a square cavity is introduced. This simple and low-cost approach results in a wide-band printed MSSA with high directivity. To verify this design concept, antenna prototypes operating at Ku frequency band have been designed and fabricated. Simulation and measurement results show that the present designs have more than 16% 10-dB return loss and 3-dB axial ratio (AR) bandwidth within the same frequency range with high radiation efficiency. The beam-scanning performance of the array antenna using the present design was investigated, and the calculated results suggest that good CP performance is obtained during the beam scanning. The advantages of our MSSA design are wide overlapped bandwidth, low profile, flexibility in antenna performance tuning, and easy fabrication. The present antennas have the potential to be used in small satellites such as microsatellites and CubeSats for tracking, command function, and data downlink applications.
UR - http://www.scopus.com/inward/record.url?scp=85012965498&partnerID=8YFLogxK
U2 - 10.1109/MAP.2017.2655528
DO - 10.1109/MAP.2017.2655528
M3 - 文章
AN - SCOPUS:85012965498
SN - 1045-9243
VL - 59
SP - 79
EP - 87
JO - IEEE Antennas and Propagation Magazine
JF - IEEE Antennas and Propagation Magazine
IS - 2
M1 - 7856962
ER -