Abstract:
Phased array technique has been widely applied in wireless and satellite communications due to its high spectrum efficiency and system reconfigurability. To maximize the ...Show MoreMetadata
Abstract:
Phased array technique has been widely applied in wireless and satellite communications due to its high spectrum efficiency and system reconfigurability. To maximize the communication capacity, multi-beam phased-array transceivers have drawn more attention in recent years, which enable concurrent communication with multiple independent users at different locations. To achieve the highest beamforming gain and the largest antenna aperture, the fully-connected phased-array is preferred. The conventional fully-connected network based multi-beam topology is shown in Fig. 1 top. As the increase number of elements (N) and beams (M), a total number of M x N amplitude-phase-control channels are needed. In [1], an 8-element 2-beam phased array is reported. However, this architecture is difficult to extend to more beams due to the complexity of local-oscillator (LO) distribution network. A 2-element 4-beam phased-array architecture with the differential passive combining network is proposed in [2]. However, the power-combining network occupies large chip area and the path layout will be more complex when extending to a larger scale.
Published in: 2023 IEEE Asian Solid-State Circuits Conference (A-SSCC)
Date of Conference: 05-08 November 2023
Date Added to IEEE Xplore: 18 December 2023
ISBN Information:
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1.
S. Mondal et al., "A 25–30 GHz fully-connected hybrid beamforming receiver for MIMO communication", JSSC, vol. 52, no. 12, pp. 1275-1287, May 2018.
2.
N. Peng et al., "A Ka-Band CMOS 4-Beam Phased-Array Receiver with Symmetrical Beam-Distribution Network", ISSCL, vol. 3, pp. 410-413, 2020.
3.
X. Huang et al., "28 GHz Compact LNAs with 1.9 dB NF Using Folded Three-Coil Transformer and Dual-Feedforward Techniques in 65nm CMOS" in RFIC, Denver, CO, USA, pp. 223-226, 2022.
4.
S. Mondal et al., "A Reconfigurable 28-/37-GHz MMSE-Adaptive Hybrid-Beamforming Receiver for Carrier Aggregation and Multi-Standard MIMO Communication", JSSC, vol. 54, no. 5, pp. 1391-1406, May 2019.
5.
N. Li et al., "A 4-Element 7.5–9 GHz Phased Array Receiver with 8 Simultaneously Reconfigurable Beams in 65 nm CMOS Technology" in RFIC, Los Angeles, CA, USA, 2020.
