phased-array

A 138 Gb/s D-Band 2-D Scalable Transceiver Array With On-Chip Antennas Achieving Sub-1-pJ/b Efficiency in 28-nm Bulk CMOS

A 138 Gb/s D-Band 2-D Scalable Transceiver Array With On-Chip Antennas Achieving Sub-1-pJ/b Efficiency in 28-nm Bulk CMOS 150 150

Abstract:

This article presents a D-band 2-D scalable phased array that integrates a $2{\,}\times{\,} 2$ transceiving (TRX) radio frequency (RF) beamformer with on-chip antennas (OCAs) and a $\times 16$ local-oscillator (LO) multiplication chain. The 2-D array scalability is demonstrated by tiling $2{\,}\times{\,} 2$ chips into an array using a low-cost package to build a 16…

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A Ka-Band Eight-Stream Phased-Array MIMO Receiver With Time-Hopping Blocker Rejection for 6G

A Ka-Band Eight-Stream Phased-Array MIMO Receiver With Time-Hopping Blocker Rejection for 6G 150 150

Abstract:

This article presents a Ka-band phased-array multiple-input multiple-output (MIMO) receiver for sixth-generation (6G) wireless networks. A time-division (TD) MIMO architecture is combined with DP antenna array to support eight MIMO streams in the Ka band. The complex weights of each RF element in both polarization arrays are sequentially switched at …

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A 298–334-GHz Scalable Injection-Locked Phased-Array Radiator With Second-Subharmonic-Termination-Assisted Waveform Formulation for Power Enhancement

A 298–334-GHz Scalable Injection-Locked Phased-Array Radiator With Second-Subharmonic-Termination-Assisted Waveform Formulation for Power Enhancement 150 150

Abstract:

This article introduces an injection-locked $4\times 2$ phased-array radiator featuring scalability in both horizontal and vertical dimensions. The system architecture is constructed by sequentially cascading four identical phase-shifting and frequency-quadrupling (PSFQ) elements in a chain-like configuration and then cohering two such chains, thereby achieving global frequency synchronization. Particularly, phase shifting and …

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A Wideband Calibration-Free D-Band Passive Phase Shifter With Frequency-Invariant Codes Over 24% Fractional Bandwidth

A Wideband Calibration-Free D-Band Passive Phase Shifter With Frequency-Invariant Codes Over 24% Fractional Bandwidth 150 150

Abstract:

This work presents a compact 110–140 GHz bidirectional D-band passive phase shifter based on combining a 5-stage capacitively-loaded reflective-type PS (RTPS) with a wideband 0°/180° stage. The design achieves a 360° phase range with a resolution of 11.25°. By applying: 1) a wideband RTPS design methodology on the stage level; 2) frequency/switching-staggering techniques among the …

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