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Synthesis technique of a low-profile multiple sub-beam phased array antenna for high-throughput satellite applications

Published online by Cambridge University Press:  06 November 2020

Elham Sharifi Moghaddam
Affiliation:
Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran
Arash Ahmadi*
Affiliation:
Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran
*
Author for correspondence: Arash Ahmadi, E-mail: [email protected]

Abstract

Sub-beam concept is very useful for size reduction of multiple beam phased array antenna (PAA) systems that are applied for high-throughput communication satellites. In this paper, the synthesis procedure for a PAA with multiple sub-beams in two dimensions of the coverage domain is proposed and analyzed. In the design procedure, the interleaved sub-arraying technique has been applied to eliminate the grating lobes. The extremely short angular distance between adjacent sub-beams is challenging. An innovative beam forming network is proposed, which can generate multiple orthogonal sub-beams while keeping the required angular distance between sub-beams. To demonstrate the effectiveness of the design technique, an example considering the requirements derived from conceptual design of a high-throughput communication payload is presented. The array is optimized using the genetic algorithm while taking into account the technical requirements of the antenna. The gain patterns exhibit a 0.4° angular distance between adjacent sub-beams. In addition, the number of sub-arrays and element spacing guarantee the orthogonality of the sub-beams. The calculated carrier to interference ratio in the synthesized array shows that it has acceptable values in each spot. The aperture size reduction in the synthesized array compared to a conventional multiple beam array is more than 36.7%.

Type
Research Paper
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association

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References

Fenech, H, Amos, S, Tomatis, A and Soumpholphakdy, V (2015) High throughput satellite systems: an analytical approach. IEEE Transactions on Aerospace and Electronic Systems 51, 192202.CrossRefGoogle Scholar
Bhattacharyya, AK (2006) Phased Array Antennas, Floquet Analysis, Synthesis, BFNs and Active Array Systems. Hoboken, NJ, USA: Wiley.Google Scholar
Kilic, O and Zaghloul, A (2009) Antenna aperture size reduction using subbeam concept in multiple spot beam cellular satellite systems. Radio Science, 44(3), 19.CrossRefGoogle Scholar
Namara Mc, (1988) Synthesis of subarrayed monopulse linear arrays through matching of independently optimum sum and difference excitations. IEEE Proceedings 135, 293296.Google Scholar
Manica, R and Oliveri, M (2011) Synthesis of multi-beam sub-arrayed antennas through an excitation matching strategy. IEEE Transactions on Antennas and Propagation 59, 482492.CrossRefGoogle Scholar
Manica, R (2008) An innovative approach based on a tree-searching algorithm for the optimal matching of independently optimum sum and difference excitations. IEEE Transactions on Antennas and Propagation 56(1), 5866.CrossRefGoogle Scholar
Jacomb-Hood, A and Lier, E (2000) Multibeam active phased arrays for communication satellites. IEEE Microwave Magazine 1(4), 4047.CrossRefGoogle Scholar
Mailloux, R (1982) Phased array theory and technology. IEEE Proceedings 70, 246290.CrossRefGoogle Scholar
Mailloux, R (1974) An overlapped subarrays for limited scan applications. IEEE Transactions on Antennas and Propagation 22(3), 487489.CrossRefGoogle Scholar
Petrolati, A (2014) A lossless beam-forming network for linear arrays based on overlapped sub-arrays. IEEE Transactions on Antennas and Propagation 62, 17691778.CrossRefGoogle Scholar
Chou, HT (2016) An effective design procedure of multibeam phased array antennas for the applications of multisatellite/coverage communications. IEEE Transactions on Antennas and Propagation 64, 42184228.CrossRefGoogle Scholar
Butler, JL and Lowe, R (1961) Beam forming matrix simplifies design of electronically scanned antennas. Electronic Design 9, 170173.Google Scholar
Macdonald, VH (1979) The cellular concept. Bell Syst Tech J 58(1), 1542.Google Scholar
Larson, WJ and Wertz, JR (2005) Space Mission Analysis and Design, 3rd ed. Huntington Beach, CA, USA: Space Technology Library.Google Scholar
SharifiMoghaddam, E (2016) Design of a compact multilayer circularly polarized phased array transmit antenna system for satellite applications. AEU-International Journal of Electronics and Communications 70, 11421155.CrossRefGoogle Scholar
Rahmat-Samii, Y and Michielssen, E (1999) Electromagnetic Optimization by Genetic Algorithms. New York, NY, USA: John Wiley & Sons, Inc.Google Scholar
Gen, M and Cheng, R (1996) Genetic Algorithm and Engineering Design. New York, NY, USA: Wiley Interscience.CrossRefGoogle Scholar
Haupt, RL and Haupt, SE (2004) Practical Genetic Algorithms, 2nd ed. New York, NY, USA: John Wiley & Sons, Inc.Google Scholar