Design of Broadband Miniaturized Microstrip Array Antenna with Circular Polarization for Use in Anti-GPS Systems
Morteza Mohammadi Shirkolaei
1
(
Department of Electrical Engineering, Shahid Sattari University of Aeronautical Engineering
)
Mehdi Aslinezhad
2
(
Department of Electrical Engineering, Shahid Sattari University of Aeronautical Engineering
)
Keywords: Microstrip antenna, Circular polarization, Wide band, GPS,
Abstract :
In this paper, a broadband miniaturized microstrip array antenna with circular polarization is proposed and designed for use in anti-GPS systems that has a single port. The working process is that first, a broadband antenna is designed to increase the bandwidth and the appropriate gain with circular polarization. Then, by designing a one-to-four divider whose output has a 90 degree phase difference and connecting it to four antennas that rotate 90 degrees to each other, a 2 by 2 array antenna is obtained. The distance of these antennas is designed so that the zero pattern is located at +90° and -90° angles to be resistant to GPS jammers. The results of the designed full-wave antenna are discussed and evaluated in this article. One of the uses of this antenna is to use it on drones that find their position through GPS. One of the important advantages of the proposed antenna is that at angles larger than 80 degrees and smaller than -80 degrees, the amount of received power is less than -25dB compared to the main beam. Therefore, this antenna can be very useful for anti-GPS systems. The results of the proposed full-wave antenna have been analyzed and reviewed. One of the important advantages of the proposed antenna is that at angles larger than 80 degrees and smaller than -80 degrees, the amount of received power is less than -25dB compared to the main beam. Therefore, this antenna can be very useful for anti-GPS systems.
Miniaturized microstrip array antenna.
Circularly polarized microstrip array antenna.
The designed antenna is used in anti-GPS systems and has a single port.
[1] M. Mohammadi Shirkolaei, “Wideband Linear Microstrip Array Antenna with High Efficiency and Low Side Lobe Level,” International journal of rf and microwave computer-aided engineering, vol. 30, p. e22412,2020, doi: 10.1002/mmce.22412.
[2] M. Mohammadi Shirkolaei, “High Efficiency X-Band Series-Fed Microstrip Array Antenna,” Progress In Electromagnetics Research C, vol. 105,pp. 33-45, 2020, doi: 10.2528/PIERC20061003.
[3] A. Maleki, H. Dalili Oskouei, and M. Mohammadi Shirkolaei, “Miniaturized microstrip patch antenna with high inter‐port isolation for full duplex communication system,”International Journal of RF and Microwave Computer‐Aided Engineering, p. e22760, 2021, doi: 10.1002/mmce.22760.
[4] M. Mohammadi Shirkolaei, H. R. Dalili Oskouei, and M. Abbasi, “Design of a 1*4 Microstrip Antenna Array on the Human Thigh with Gain Enhancement,” IETE Journal of Research, vol. 69, no. 9, pp. 5944-5950, 2021, doi: 10.1080/03772063.2021.2004459.
[5] F. Moayyed, H. R. Dalili Oskouei, and M. Mohammadi Shirkolaei , “High Gain and Wideband Multi-Stack Multilayer Anisotropic Dielectric Antenna,” Progress In Electromagnetics Research Letters, vol. 99, pp- 103-109, 2021, doi: 10.2528/PIERL21062307.
[6] H. R. Dalili Oskouei, H. Dehjouriyan, and M. Mohammadi Shirkolaei, “A novel wideband dielectric resonator antenna with compact size,” Electromagnetics, vol. 43, no. 4, pp. 285-290, 2023, doi: 10.1080/02726343.2023.2230065.
[7] H. Zamini, M. Afsahi, H. R. Dalili Oskouei, and M. Mohammadi Shirkolaei, “A Wide Angle Beam Scanning CRLH Leaky-Wave Antenna with Non-Identical Elements per Unit-Cells,” Physica Scripta, vol. 99, no. 10, p. 105535, 2024, doi: 10.1088/1402-4896/ad693c.
[8] J. R. James, P. S. Hall, and C. Wood, Microstrip Antenna: Peter Pere- grinus, 1981, ch. 7.
[9] K. Carver and J. Mink, "Microstrip antenna technology," in IEEE Transactions on Antennas and Propagation, vol. 29, no. 1, pp. 2-24, January 1981, doi: 10.1109/TAP.1981.1142523.
[10] M. Haneishi and S. Yoshida, “A design method of circularly polarized rectangular microstrip antenna by one-feed point,” Electron. Commun. Jpn., vol. 54, pp. 46–54, 1981, doi: 10.1002/ecja.4410640407.
[11] P. Sharma and K. Gupta, "Analysis and optimized design of single feed circularly polarized microstrip antennas," in IEEE Transactions on Antennas and Propagation, vol. 31, no. 6, pp. 949-955, November 1983, doi: 10.1109/TAP.1983.1143162.