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In this paper, we investigate the beam squint effect on a high-throughput mmWave communication system with the single-carrier frequency-domain equalization transmission scheme. Specifically, we first view analog beamforming and the physical channel as a spatial equivalent channel. The characteristics of...
A short study was performed to demonstrate the beam-squint effect due to the circular polarization in the beam-waveguide system of DSS 24 and to obtain quantitative values for this squint. Beam squint occurs when a circularly polarized feed illuminates a reflector system in an asymmetric or offset...
摘要: In this paper, we design an uplink/downlink channel estimation method for millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems and investigate the impact of beam squint ef...关键词:Beam squint effect channel estimation off-grid angle-delay reciprocity CRB ...
The seat-dip effect occurs in certain rows in a theater due to selective sound attenuation caused by grazing-incidence at low frequencies, which seriously influences perception of bass sounds. 座席低谷效应是坐席中声波为掠入射时声场在低频段出现的选择性吸收的现象,它会影响厅堂中低频声的听感。 更多...
(mmWave)communication systems to increase the transmission distance.However,when the signal bandwidth is large,the antenna array response changes with the frequency,causing beam squint.In this paper,we investigate the beam squint effect on a high-throughput mmWave communication system with the single-...
This unique characteristic is utilized to minimize the beam squinting effect in the series-fed array antennas. It is shown that in a 5 × 1 array using both DPS and DNG materials, the variation in the direction of its beam and boresight gain are limited to 0.5 ° and 0.8 dB, ...
It is found that both the beam squint and frequency-selective effect should be considered in the wideband mmWave system. Simulation results show that the proposed two-tier hybrid precoder could reduce beam squint impairment and inter-user interference, and could approximate to the optimal full-...
A method of beam steering is provided to address the squint effect that occurs in phased array antennas when wideband signals are transmitted. Beam steering weights are computed based on an optimization that takes into account performance at a set of frequencies across a bandwidth of interest, ...
It is found that both the beam squint and frequency-selective effect should be considered in the wideband mmWave system. Simulation results show that the proposed two-tier hybrid precoder could reduce beam squint impairment and inter-user interference, and could approximate to the optimal full-...