Complex Spiral Antenna with Low Radar Cross Section Level

Abstract:

An ultra-wideband (UWB) circularly polarized complex spiral antenna with low radar cross section (RCS) is proposed in this paper. By replacing the metal reflect board of the antenna with a novel UWB frequency selective surface (FSS), the RCS of the spiral antenna is significantly reduced in a wide frequency range, while the radiation performances of the spiral antenna are maintained. The proposed antenna operates over the frequency band between 2GHz to 6.5GHz under the condition of axial ratio<3dB and |S₁₁| < - 10dB. Simulation and measurement results demonstrate the validation of broadband spiral antenna RCS reduction by using the novel UWB FSS.

• Periodical: Applied Mechanics and Materials (Volumes 631-632)
• Pages: 306-309
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.631-632.306
• Online since: September 2014
• Authors: Chun Hui Mou*, Tao Hong, Wen Jiang, Shu Xi Gong
• Keywords: Frequency Selective Surface, Radar Cross Section, Spiral Antenna, Ultra Wide-Band

References

[1] Nahid Rahman, Mohammed N. Afsar: IEEE Transaction on Antenna and Propagation Vol. 61 (2013), p.54.

[2] Luo Wang: Communications Technology, Vol. 46 (2013), p.12.

[3] Jiang W, Liu Y and Gong S X: IEEE Transactions on Antennas and Propagation, Vol. 8 (2009), p.1275.

[4] Filippo Costa, Agostino Monorchio: IEEE Transaction on Antenna and Propagation, Vol. 60 (2012), p.2740.

[5] T. -K Wu: IEEE Transaction on Antenna and Propagation, Vol. 42 (1994), p.1659.

[6] G. I. Kiani, K. P. Esselle and K. L. Ford: Microwave Opt Technol Lett, Vol. 50 (2008), p.2315.

[7] K.Q. da Costa, V. Dmitriev: IEE Proc-Microw Antennas Propag, Vol. 5 (2006), p.475.