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Design of a hybrid A-sandwich radome using a strongly coupled frequency selective surface element

Published online by Cambridge University Press:  10 February 2020

Krushna Kanth Varikuntla Open the ORCID record for Krushna Kanth Varikuntla [Opens in a new window]  and
Raghavan Singaravelu
Krushna Kanth Varikuntla*
Affiliation:
Department of Electronics and Communication Engineering, National Institute of Technology Tiruchirappalli, Trichy, India
Raghavan Singaravelu
Affiliation:
Department of Electronics and Communication Engineering, National Institute of Technology Tiruchirappalli, Trichy, India
*
Author for correspondence: Krushna Kanth Varikuntla, E-mail: krushnakanthv@gmail.com
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Abstract

The airborne radomes have to cater superior electromagnetic (EM) performance with bandpass characteristics of stealth application. In this regard, a hybrid A-sandwich radome is proposed in this paper. The proposed radome consists of a novel strongly coupled frequency selective surface (FSS) core sandwiched between two dielectric layers (acts as skin) to form an A-sandwich structure. The dielectric layers are cascaded in such a way that the middle layer has less dielectric parameters than the skin dielectric. The core layer comprises a modified FSS array using strongly coupled FSS layers through a series of metallic vias. This strongly-coupled FSS element will have the advantage of eliminating inter-element interference and improves the EM performance characteristics of the structure. The structure exhibits very good band-pass characteristics (>90%) at a normal impinging angle with sharp roll-off characteristics. To show the efficacy of the proposed structure, the transmission loss has been compared with that of conventional A-sandwich radomes at 0°, 50° incidence angle for both TE and TM polarization. Conformal analysis of the unit cell has been carried out, and sector-wise thickness optimization was performed to analyze the structure for the conformal shaped radome application. Finally, a physical prototype has been fabricated and measured its scattering parameters, radiation characteristics in a fully shielded anechoic chamber. The results are encouraging and prove its suitability for radome application.

Keywords

EM field theory and numerical techniquesmulti-layerradomestrongly coupled-frequency selective surfaces microwave measurementswave propagation and scattering: modeling and measurements
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Special Issue 8: Special Issue EuMW 2019. Part II , October 2020 , pp. 738 - 748
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Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

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References

(1975) Military specification: General specification for radomes, MIL-R-7705A.Google Scholar
Yazeen, PSM, Vinisha, CV, Vandana, S, Suprava, M and Nair, RU (2017) Electromagnetic performance analysis of graded dielectric inhomogeneous streamlined airborne radome. IEEE Transactions on Antennas and Propagation 65, 2718–2723.10.1109/TAP.2017.2669718CrossRefGoogle Scholar
Kozakoff, DJ (2010) Analysis of Radome Enclosed Antennas. Norwood, MA, USA: Artech House.Google Scholar
Nair, RU and Jha, RM (2014) Electromagnetic design and performance analysis of airborne radomes: trends and perspectives. IEEE Antennas and Propagation Magazine 56, 276–298.CrossRefGoogle Scholar
Narayan, S and Jha, RM (2015) Electromagnetic techniques and design strategies for FSS structure applications [Antenna Applications Corner]. IEEE Antennas and Propagation Magazine 57, 135–158.10.1109/MAP.2015.2474867CrossRefGoogle Scholar
Xu, W, Duan, B, Li, P, Yang, G and Qiu, Y (2017) Integrated optimum design of metal space frame radomes with variable size members involving electromagnetic and structural analysis. IET Microwaves, Antennas & Propagation 11, 1565–1571.CrossRefGoogle Scholar
Moccia, M, Castaldi, G, D'Alterio, G, Feo, M, Vitiello, R and Galdi, V (2017) Transformation-optics-based design of a metamaterial radome for extending the scanning angle of a phased-array antenna. IEEE Journal on Multiscale and Multiphysics Computational Techniques 2, 159–167.CrossRefGoogle Scholar
Xu, W, Duan, BY, Li, P and Qiu, Y (2017) Study on the electromagnetic performance of inhomogeneous radomes for airborne applications – part II: the overall comparison with variable thickness radomes. IEEE Transactions on Antennas and Propagation 65, 3175–3183.10.1109/TAP.2017.2694463CrossRefGoogle Scholar
Xu, W, Duan, BY, Li, P and Qiu, Y (2017) Study on the electromagnetic performance of inhomogeneous radomes for airborne applications – Part I: characteristics of phase distortion and boresight error. IEEE Transactions on Antennas and Propagation 65, 3162–3174.CrossRefGoogle Scholar
Munk, BA (2000) Frequency Selective Surfaces: Theory and Design. New York: Wiley.CrossRefGoogle Scholar
Lee, J, Yoo, M and Lim, S (2015) A study of ultra-thin single layer frequency selective surface microwave absorbers with three different bandwidths using double resonance. IEEE Transactions on Antennas and Propagation 63, 221–230.CrossRefGoogle Scholar
Raytheon Company, Waltham, Cannon, BL and Jordan, JW. “Multiband-band-pass, dual polarization radome with Embedded gridded structures”, United State patent (US 2014/0118217 A1).Google Scholar
Narayan, S, Prasad, K, Nair, RU and Jha, RM (2012) A novel EM analysis of double-layered thick FSS based on MM-GSM technique for radome application. Progress In Electromagnetics Research Letters 25, 53–62.CrossRefGoogle Scholar
Chen, H, Hou, X and Deng, L (2009) Design of frequency-selective surfaces radome for a planar slotted waveguide antenna. IEEE Antennas and Wireless Propagation Letters 8, 1231–1233.CrossRefGoogle Scholar
Xu, F, Jiang, X and Wu, K (2008) Efficient and accurate design of substrate-integrated waveguide circuits synthesised with metallic via-slot arrays. IET Microwaves, Antennas & Propagation 2, 188–193.CrossRefGoogle Scholar
Luo, GQ, Hong, W, Tang, HJ and Wu, K (2006) High performance frequency selective surface using cascading substrate integrated waveguide cavities. IEEE Microwave and Wireless Components Letters 16, 648–650.CrossRefGoogle Scholar
Krushna Kanth, V and Raghavan, S (2018) Ultrathin design and implementation of planar and conformal polarisation rotating frequency selective surface based on SIW technology. IET Microwaves, Antennas & Propagation 12, 1939–1947.Google Scholar
Krushna Kanth, V and Raghavan, S (2019) Design and implementation of 2.5D frequency-selective surface based on substrate-integrated waveguide technology. International Journal of Microwave and Wireless Technologies 11, 255–267.Google Scholar
Cary, RHJ (1982) Radomes. In Rudge, AW, Milne, K, Olver, AD and Knight, P (eds), the Handbook of Antenna Design. London, UK: Peter Peregrinus. (Chapter. 14, pp. 457–550).Google Scholar
Pozar, DM (2012) Microwave Engineering, 4th Edn. Inc., New York, USA: Johm Wiley & sons, Inc.Google Scholar
Wu, JH, Scholvin, J, del Alamo, JA and Jenkins, KA (2001) A Faraday cage isolation structure for substrate crosstalk suppression. IEEE Microwave and Wireless Components Letters 11, 410–412.CrossRefGoogle Scholar
Xu, RR, Zong, ZY, Yang, G and Wu, W (2008) Loaded frequency selective surfaces using substrate integrated waveguide technology. Microwave and Optical Technology Letters 50, Chapter. 14.10.1002/mop.23945CrossRefGoogle Scholar
Anderson, I (1975) On the theory of self-resonant grids. The Bell System Technical Journal 54, 1725–1731.CrossRefGoogle Scholar
Winkler, SA, Hong, W, Bozzi, M and Wu, K (2010) Polarization rotating frequency selective surface based on substrate integrated waveguide technology. IEEE Transactions on Antennas and Propagation 58, 1202–1213.CrossRefGoogle Scholar
Zhang, H, Meng, R, Xia, Z and Zhu, Q (2014) A novel substrate integrated waveguide slot antenna with high power-handling capacity. IEEE Antennas and Propagation Society International Symposium (APSURSI), Memphis, TN, 1037–1038.CrossRefGoogle Scholar
Parment, F, Ghiotto, A, Vuong, TP, Duchamp, JM and Wu, K (2015) Air-filled substrate integrated waveguide for low-loss and high power-handling millimeter-wave substrate integrated circuits. IEEE Transactions on Microwave Theory and Techniques 63, 1228–1238.CrossRefGoogle Scholar
Munk, BA, Luebbers, R and Mentzer, CA (1971) Breakdown of periodic surfaces at microwave frequencies’, ElectroScience Lab., Dept. Elect. Eng., Ohio State Univ., Columbus, OH, Tech. Rep, 2989-1.Google Scholar
Marcuvitz, N (1951) Waveguide Handbook. New York: McGraw-HillGoogle Scholar