High-efficiency and wideband aperiodic array of uniformly excited slotted waveguide antennas designed through compressive sensing

Lei Shi, Carlo Bencivenni, Rob Maaskant, Johan Wettergren, Johan Pragt, Marianna Ivashina (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

Uittreksel

A uniformly excited slotted waveguide (WG) antenna array for point-to-point communication is presented. The European Telecommunications Standards Institute class-II sidelobe level requirements are satisfied in all planes at almost all frequencies by the aperiodic arrangement of several parallel ridge WGs in the E-plane, each with a different number of equally spaced radiating slots along the H-plane. Both the optimal separation and number of slots per WG are determined through a compressive sensing approach. This results in 160 slots organized in 16 columns offering 29 dBi peak gain at Ka-band. A dedicated 16-way analog beamforming network is designed to provide the optimal nonuniform and in-phase excitation of the 16 WG channels, thereby compensating for the variable number of slots per column and the phase difference due to the E-plane aperiodicity. The measurements confirm the simulated reflection coefficient and radiation pattern characteristics, as well as the high aperture efficiency (70%-90%) over a 13.6% relative bandwidth (27.5-31.5 GHz) and <2 dB gain variation over 3.75 GHz (12.7%).

Originele taal-2Engels
Artikelnummer8606072
Pagina's (van-tot)2992-2999
Aantal pagina's8
TijdschriftIEEE Transactions on Antennas and Propagation
Volume67
Nummer van het tijdschrift5
DOI's
StatusGepubliceerd - 1 mei 2019

Vingerafdruk

Waveguides
Antennas
Beamforming
Antenna arrays
Telecommunication
Bandwidth
Communication

Citeer dit

Shi, Lei ; Bencivenni, Carlo ; Maaskant, Rob ; Wettergren, Johan ; Pragt, Johan ; Ivashina, Marianna. / High-efficiency and wideband aperiodic array of uniformly excited slotted waveguide antennas designed through compressive sensing. In: IEEE Transactions on Antennas and Propagation. 2019 ; Vol. 67, Nr. 5. blz. 2992-2999.
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abstract = "A uniformly excited slotted waveguide (WG) antenna array for point-to-point communication is presented. The European Telecommunications Standards Institute class-II sidelobe level requirements are satisfied in all planes at almost all frequencies by the aperiodic arrangement of several parallel ridge WGs in the E-plane, each with a different number of equally spaced radiating slots along the H-plane. Both the optimal separation and number of slots per WG are determined through a compressive sensing approach. This results in 160 slots organized in 16 columns offering 29 dBi peak gain at Ka-band. A dedicated 16-way analog beamforming network is designed to provide the optimal nonuniform and in-phase excitation of the 16 WG channels, thereby compensating for the variable number of slots per column and the phase difference due to the E-plane aperiodicity. The measurements confirm the simulated reflection coefficient and radiation pattern characteristics, as well as the high aperture efficiency (70{\%}-90{\%}) over a 13.6{\%} relative bandwidth (27.5-31.5 GHz) and <2 dB gain variation over 3.75 GHz (12.7{\%}).",
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High-efficiency and wideband aperiodic array of uniformly excited slotted waveguide antennas designed through compressive sensing. / Shi, Lei; Bencivenni, Carlo; Maaskant, Rob; Wettergren, Johan; Pragt, Johan; Ivashina, Marianna (Corresponding author).

In: IEEE Transactions on Antennas and Propagation, Vol. 67, Nr. 5, 8606072, 01.05.2019, blz. 2992-2999.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

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