A 25-GHz Compact Low-Power Phased-Array Receiver With Continuous Beam Steering in CMOS Technology

Chin, Ting-Yueh; Chang, Sheng-Fuh; Wu, Jen-Chieh; Chang, Chia-Chan

doi:10.1109/jssc.2010.2064010

Cited by 34 publications

(22 citation statements)

References 17 publications

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“…It is fulfilled by the subsector beam-steering method, whose weighting factor controller is a narrowband solution with considerably high dc power consumption. Also, it experiences amplitude imbalance during scanning, which can be verified from (9) of [22].…”

Section: Introductionmentioning

confidence: 92%

“…Also, the SPNT component could be non-planar and bulky in size. An active Butler-matrix-based receiver with a common input is developed as an alternative solution showing continuous beam-scanning property [22]. It is fulfilled by the subsector beam-steering method, whose weighting factor controller is a narrowband solution with considerably high dc power consumption.…”

Section: Introductionmentioning

confidence: 99%

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A Phase Distribution Network Using 2 × 4 Butler Matrix for Linear/Planar Beam-Scanning Arrays

Chu

2021

IEEE Access

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A new 1  4 phase distribution network (PDN) featuring a fully controllable progressive phase shift between outputs is proposed for continuous beam-scanning arrays. The PDN is made up of two parts: a modified 2  4 Butler matrix integrated with four phase shifters (PSs), and a tunable power divider (TPD) whose power division ratio can be controlled over a wide tuning range. The synthesis equations show that the relative phase shift between PDN outputs can be fully controlled by the TPD and embedded PSs without using an external single-pole quad-throw (SP4T) switch. The proposed PDN is demonstrated at 2.4 GHz as the feed network of a 4-element linear array. The experimental results display a fully controllable progressive phase shift (from −180° to 180°) between PDN outputs over a 20% bandwidth with good performance of matching, power division, and relative phase shifts. A spatial coverage of 116° with the feature of continuous beam scanning and negligible dc power consumption is achieved. Benefitting from the single-input topology, a planar 16-element phased array for 2D beam scanning is then realized by simply stacking and cascading five instead of eight PDN modules. It removes the high-cost and bulky SP16T switch. Experimental results demonstrate the uniqueness of the proposed designs.INDEX TERMS Antenna arrays, beam-steering, Butler matrix, phase shifters, tunable circuit and devices.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

A Phase Distribution Network Using 2 × 4 Butler Matrix for Linear/Planar Beam-Scanning Arrays

Chu

2021

IEEE Access

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“…It is clear to observe that two beams can be generated simultaneously with orthogonality. Except eight orthogonal beams, [18] also introduced a dualfeeding technique in a conventional BM using, in which two input ports are excited simultaneously. If those two excited beams are spatially adjacent to each other, they will merge into a new beam.…”

Section: Multi-beam Generationmentioning

confidence: 99%

Designs of deformed eight‐way Butler matrix with port reduction for massive array beamforming

Chang

2019

IET Microwaves, Antennas & Propagation

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Massive‐MIMO technology has been proposed for 5G systems, in which beamforming is one of the essential features. In this work, folding deformation technique is proposed to reduce the size of the Butler matrix (BM) used in array system. Based on the mirror symmetry of the conventional BMs, partial components can be saved. By embedding some switches from the feeding network into the internal BMs, the number of building blocks and input ports is decreased. For demonstration, both 4 × 8 BMs and 2 × 8 BMs deformed from a conventional 8 × 8 BM are designed and implemented in this work. Up to 25% reduction in size is achieved when compared to a conventional 8 × 8 BM. The proposed BMs not only can generate eight orthogonal beams, but also can perform the beam synthesis, showing a great potential for future communication systems.

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“…In order to achieve a fine beam resolution, a 25-GHz lowpower BM-based phased array receiver associated with the subsector beam steering (SBS) technique was proposed in Ref. 35. Fig.…”

Section: Continuous-wave Radar Sensor Chipsmentioning

confidence: 99%

Editors' Choice—Review—Semiconductor Integrated Radar for Sensing Applications

Lin

Chang

et al. 2018

ECS J. Solid State Sci. Technol.

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A 25-GHz Compact Low-Power Phased-Array Receiver With Continuous Beam Steering in CMOS Technology

Cited by 34 publications

References 17 publications

A Phase Distribution Network Using 2 × 4 Butler Matrix for Linear/Planar Beam-Scanning Arrays

A Phase Distribution Network Using 2 × 4 Butler Matrix for Linear/Planar Beam-Scanning Arrays

Designs of deformed eight‐way Butler matrix with port reduction for massive array beamforming

Editors' Choice—Review—Semiconductor Integrated Radar for Sensing Applications

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