Study on Antenna Mutual Coupling Suppression Using Integrated Metasurface Isolator for SAR and MIMO Applications

Alibakhshikenari, Mohammad; Virdee, Bal Singh; See, Chan Hwang; Abd-Alhameed, Raed; Falcone, Francisco; Andujar, Aurora; Anguera, Jaume; Limiti, Emesto

Abstract

A metasurface based decoupling structure that is composed of a square-wave slot pattern with exaggerated corners that is implemented on a rectangular microstrip provides high-isolation between adjacent patch antennas for Synthetic Aperture Radar (SAR) and Multi-Input-Multi-Output (MIMO) systems. The proposed 1×2 symmetric array antenna integrated with the proposed decoupling isolation structure is designed to operate at ISM bands of X, Ku, K, and Ka. With the proposed mutual coupling suppression technique (i) the average isolation in the respective ISM bands listed above is 7 dB, 10 dB, 5 dB, and 10 dB; and (ii) edge-to-edge gap between adjacent radiation elements is reduced to 10 mm (0.28λ). The average antenna gain improvement with the metasurface isolator is 2 dBi.

Citation

Alibakhshikenari, M., Virdee, B. S., See, C. H., Abd-Alhameed, R., Falcone, F., Andujar, A., …Limiti, E. (2018). Study on Antenna Mutual Coupling Suppression Using Integrated Metasurface Isolator for SAR and MIMO Applications. . https://doi.org/10.23919/EuMC.2018.8541373

• Conference Name: 2018 48th European Microwave Conference (EuMC)
• Conference Location: Madrid, Spain
• Start Date: Sep 23, 2018
• End Date: Sep 27, 2018
• Acceptance Date: Jun 11, 2018
• Publication Date: 2018-09
• Deposit Date: May 27, 2019
• Pages: 1425-1428
• ISBN: 9782874870514
• DOI: https://doi.org/10.23919/EuMC.2018.8541373
• Keywords: Mutual coupling suppression, decoupling, metasurface, synthetic aperture radar (SAR), MIMO
• Public URL: http://researchrepository.napier.ac.uk/Output/1830591