Enhanced 3 dB AR beamwidth metamaterial antenna for nanosatellite payload communication system. Issue 19 (1st September 2018)

• Record Type: Journal Article
• Authors: Alam, T.; Islam, M.T.; Cho, M.
• Is Part Of: Electronics letters. Volume 54:Issue 19(2018)
• Page Start: 1104
• Page End: 1106
• Publication Date: 2018-09-01
• Subjects: UHF antennas -- metamaterial antennas -- satellite antennas -- electromagnetic wave polarisation -- antenna feeds -- nanotechnology -- electromagnetic metamaterials; enhanced AR beamwidth metamaterial antenna -- nanosatellite payload communication system -- compact dual‐circular polarised metamaterial inspired antenna -- two‐layered stacked structure -- sandwich rectangular parasitic layer -- negative metamaterial cells -- unit cells -- DNG metamaterial structure -- pentagonal radiator -- axial ratio bandwidth -- orthogonal feedings -- dual‐circular polarisation -- impedance bandwidth -- 1U nanosatellite structure -- double negative metamaterial structure -- gain 5.15 dB -- bandwidth 160 MHz -- bandwidth 210 MHz -- bandwidth 710 MHz -- frequency 3.06 GHz to 3.77 GHz -- frequency 3.02 GHz to 3.18 GHz -- frequency 3.05 GHz to 3.26 GHz; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.5717
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A compact dual‐circular polarised metamaterial inspired antenna is proposed for nanosatellite payload communication. The antenna consists of two‐layered stacked structure with a sandwich rectangular parasitic layer between two layers. Two double negative metamaterial cells. Two unit cells of DNG metamaterial structure are applied inside the pentagonal radiator to enhance 3 dB axial ratio (AR) bandwidth and beamwidth. Two orthogonal feedings are utilised to generate dual‐circular polarisation (CP). The antenna achieves measured 710 MHz (3.06–3.77 GHz) of −10 dB impedance bandwidth with 160 MHz (3.02–3.18 GHz) and 210 MHz (3.05–3.26 GHz) of 3 dB AR bandwidth for port 1 and port 2, respectively. The 3 dB AR beamwidth of 165° for port 1 and 212° for port 2 is exhibited with an average realised gain of 5.15 dB. A 1U nanosatellite structure has been utilised to realise the antenna performance while operation in real‐time environment.