Subarray-Processing Iterative SISO Multi-User Detection and Multi-Beam Directivity Control for Large-Scale Antenna Array in Quasi-Millimeter-Wave SDMA Systems

This paper presents a design of a triangular slot-loaded planar rectangular antenna array for wideband millimeter-wave (mm-wave) 5G communication systems. The proposed array realizes an overall size of 35.5 × 14.85 mm2. To excite the array elements, a four-way broadband corporate feeding network was designed and analyzed. The proposed array offered a measured impedance bandwidth in two different frequency ranges, i.e., from 23 to 24.6 GHz and from 26 to 45 GHz. The single-antenna element of the array consists of a rectangular patch radiator with a triangular slot. The partial ground plane was used at the bottom side of the substrate to obtain a wide impedance bandwidth. The peak gain in the proposed array is ≈12 dBi with a radiation efficiency of >90%. Furthermore, the array gives a half-power beamwidth (HPBW) of as low as 12.5°. The proposed array has been fabricated and measured, and it has been observed that the measured results are in agreement with the simulated data.

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Blind Diagnosis for Millimeter-wave Large-scale Antenna Systems

IEEE Communications Letters ◽

10.1109/lcomm.2021.3071160 ◽

2021 ◽

pp. 1-1

Author(s):

Rui Sun ◽

Weidong Wang ◽

Li Chen ◽

Guo Wei ◽

Wenyi Zhang

Keyword(s):

Millimeter Wave ◽

Large Scale ◽

Large Scale Antenna Systems ◽

Antenna Systems

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Low-complexity and Low-overhead Receiver for OTFS via Large-scale Antenna Array

IEEE Transactions on Vehicular Technology ◽

10.1109/tvt.2021.3072667 ◽

2021 ◽

pp. 1-1

Author(s):

Yaru Shan ◽

Fanggang Wang

Keyword(s):

Antenna Array ◽

Large Scale ◽

Low Complexity

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Millimeter-Wave Near-Field-Focused Full 2-D Frequency Scanning Antenna Array with Height-Modulated-Ridge Waveguide

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2020.3044080 ◽

2020 ◽

pp. 1-1

Author(s):

Ya Fei Wu ◽

Yu Jian Cheng ◽

Shi Sen Yao ◽

Yong Fan

Keyword(s):

Antenna Array ◽

Millimeter Wave ◽

Near Field ◽

Ridge Waveguide ◽

Frequency Scanning ◽

Scanning Antenna

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Wideband Circular Polarized Dielectric Resonator Antenna Array for Millimeter-Wave Applications

Sensors ◽

10.3390/s21113614 ◽

2021 ◽

Vol 21 (11) ◽

pp. 3614

Author(s):

Arun Kesavan ◽

Mu’ath Al-Hassan ◽

Ismail Ben Mabrouk ◽

Tayeb A. Denidni

Keyword(s):

Antenna Array ◽

Millimeter Wave ◽

Axial Ratio ◽

Unit Element ◽

Dielectric Resonator Antenna ◽

Gain Bandwidth ◽

Left Hand ◽

Wide Resonance ◽

Element Array ◽

Peak Gain

A novel circular polarized dielectric antenna array (DRA) for millimeter-wave applications at 30 GHz is presented in this paper. The unit element array is a flower-shaped DRA fed with a cross slot. To obtain circular polarization, a sequential network combined with the cross slots is used to feed the 2×2 array. The prototype of the proposed antenna array is fabricated and measured to obtain a wide resonance bandwidth from 27 GHz to 38 GHz frequency band. Furthermore, this left-hand polarized antenna array has achieved a peak gain of 9.5 dBi with 3-dB axial ratio at 30 GHz. The proposed DRA array with wideband resonance and gain bandwidth has the potential to be used for millimeter-wave wireless communications at the 30 GHz band.

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