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, J.; Ivashina, Marianna

doi:10.1109/tap.2019.2891647

Cited by 24 publications

(13 citation statements)

References 23 publications

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“…However, these structures cannot solve the problem as it requires that the SLL in all azimuth angles needs to be suppressed. An aperiodic slot array with uniform excitation is proposed in [14], and its maximum SLL in all azimuth angles is −18 dB. However, its relative bandwidth is only 13.6 % which cannot be migrated to cover E-band.…”

Section: Introductionmentioning

confidence: 99%

Wideband Low-Sidelobe Slot Array Antenna With Compact Tapering Feeding Network for E-Band Wireless Communications

Liu

Pedersen

Zhang

2022

IEEE Trans. Antennas Propagat.

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In this work, a wideband low sidelobe slot array antenna for wireless communication system at E-band is presented. The slots are excited by a parallel feeding network where the Taylor distribution is applied. Two types of wideband unequal power divider with compact structures are designed for various output ratios to fit the limited feeding network space. One is integrated vertically inside a 2 × 1 elements subarray using a set of pins with asymmetrical offset. The other type is designed inside an E-plane T-junction with unbalance impedance at two output ports. To avoid main lobe tilt and asymmetrical radiation patterns, the feeding network is designed to be biaxially symmetrical, and the feed port is placed in the center of the back. A prototype is fabricated with brass and measured in an anechoic chamber. It achieves a peak gain of 25.8 dBi and a fractional impedance bandwidth of 19.2 % with S 11 below −10 dB. The measured radiation patterns agree with the simulated patterns very well, and the sidelobe level is lower than −21 dB.

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Section: Introductionmentioning

confidence: 99%

Wideband Low-Sidelobe Slot Array Antenna With Compact Tapering Feeding Network for E-Band Wireless Communications

Liu

Pedersen

Zhang

2022

IEEE Trans. Antennas Propagat.

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“…It has to be observed that the reduction of the PSLL by aperiodic arrangements is obtained by spreading the energy in a larger solid angle, thus raising the Average Side Lobe Level (ASLL) [26] with a consequent maximum array gain reduction. Moreover, these irregular array solutions based on an extensive optimization procedure present some challenges in terms of practical design increasing considerably the complexity of the feeding network [27], [28].…”

Section: Introductionmentioning

confidence: 99%

Exploitation of Triangular Lattice Arrays for Improved Spectral Efficiency in Massive MIMO 5G Systems

Dicandia

Genovesi

2021

IEEE Access

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A thorough analysis of the performance of planar arrays with a regular periodic lattice is carried out and applied to massive multiple-input-multiple-output (MIMO) systems operating within 5G NR n257 and n258 frequency band. It is shown that, among different arrangements with uniform spacing, a triangular lattice guarantees the reduction of the Average Side Lobe Level (ASLL), a better angular scan resolution of the main beam within a predefined angular sector and a lower mutual coupling level among elements. Moreover, single beam and multibeam application scenarios are considered for the performance comparison and both cases assess the remarkable features offered by a triangular arrangement. Particular attention is paid to illustrate, for different propagation channel scenarios, the effects of the array lattice on overall system performance including average gain as well as Signal-to-Interference plus Noise Ratio (SINR) and Sum Spectral Efficiency (SSE). The obtained results prove that a regular and periodic triangular lattice is appealing for arrays to be adopted in massive MIMO 5G systems. INDEX TERMS Antenna array, 5G, massive MIMO, multibeam antenna, broadband array.

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“…According to the structures of feed network, hollowwaveguide based mmW slot array antennas can be divided into two categories: one is series-feed [5], [6] or partial cooperatefeed [7], [8] and the other is full corporate-feed [9][10][11]. The former generally has a simpler structure, but usually suffers from narrow bandwidth [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

E-Band Full Corporate-Feed 32 × 32 Slot Array Antenna With Simplified Assembly

Zhao

You

et al. 2021

Antennas Wirel. Propag. Lett.

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Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document.When citing, please reference the published version. Take down policyWhile the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.

show abstract

High-Efficiency and Wideband Aperiodic Array of Uniformly Excited Slotted Waveguide Antennas Designed Through Compressive Sensing

Cited by 24 publications

References 23 publications

Wideband Low-Sidelobe Slot Array Antenna With Compact Tapering Feeding Network for E-Band Wireless Communications

Wideband Low-Sidelobe Slot Array Antenna With Compact Tapering Feeding Network for E-Band Wireless Communications

Exploitation of Triangular Lattice Arrays for Improved Spectral Efficiency in Massive MIMO 5G Systems

E-Band Full Corporate-Feed 32 × 32 Slot Array Antenna With Simplified Assembly

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