A Tunable Concurrent Dual-Band Phase Shifter MMIC for Beam Steering Applications

Xiong, Yitong; Zeng, Xiaoping; Li, Junging

doi:10.1109/tcsii.2019.2963719

Cited by 16 publications

(5 citation statements)

References 14 publications

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“…Secondly, their loss often increases when their number of states increases. Thirdly, MMIC solutions [14] have limited quality factor and their implementation in lower frequencies becomes large and lossy.…”

Section: B Wideband Tunable Phase Shiftermentioning

confidence: 99%

Dual-Band Reconfigurable Impedance Matching Networks

Yazdani,

Raafat

2024

IEEE J. Microw.

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This article presents a novel methodology for designing Dual-band Reconfigurable Impedance Matching Networks (Db-RIMNs) using a cascade network of tunable filters and phase shifters. The proposed design can be used to match frequency dependent and impedance variable dual-band loads. The theory of operation, the design considerations, and the design procedure are provided. Moreover, a prototype circuit is designed for a dual-band variable load at sub-6 GHz bands. The performance of the proposed design is not restricted by the range of realizable characteristic impedances. Moreover, the achievable impedance coverage and frequency ratio of the two bands are not restricted by the circuit fabrication limitations. Finally, the performance in terms of matched bandwidth and losses are investigated. The simulation and measurement results for a fabricated prototype are in close agreement. The proposed design has a wide range of anticipated applications in design of concurrent dual band power amplifiers, multiband antennas, phased arrays, to name a few. The cascade architecture of tunable filters and phase shifters is the sole published design for Db-RIMNs in the literature.

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Section: B Wideband Tunable Phase Shiftermentioning

confidence: 99%

Dual-Band Reconfigurable Impedance Matching Networks

Yazdani,

Raafat

2024

IEEE J. Microw.

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“…They have the capability of enhancing communication security, improving channel capacity, and adapting to changing channel conditions [1] - [8]. A phased array antenna is a popular example of a beam steerable antenna [9] - [12]. A phased array antenna can achieve continuous beam steering.…”

Section: Introductionmentioning

confidence: 99%

Continuous Beam Steering Realized by Tunable Ground in a Patch Antenna

Zhou

Alkaraki

et al. 2023

IEEE Access

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A continuously steerable patch antenna employing liquid metal is presented. The proposed antenna employs a novel tunable ground plane together with parasitic steering to steer the direction of the main beam. The tunable ground plane consists of a permanent region, made from copper, and two tunable regions formed from liquid metal. The liquid metal channels were fabricated using 3D printing technology. By continuously injecting liquid metal into channels, the proposed patch antenna can provide continuous beam steering from -30 to +30 in the elevation plane, while achieving low side lobe level performance combined with low scan loss performance. Such an approach has never been tried before and it is only possible due to the unique properties of liquid metal. To the best of the authors' knowledge, this is the first time that tunable ground plane has been used for a patch antenna to achieve continuous beam steering. The proposed antenna operates at 5.3 GHz. The antenna is fabricated and measured. Measurement results agree well with the simulation results and validate the effectiveness of the proposed beam steering technique. The proposed antenna has a measured gain of 8.1 dBi at 5.3 GHz and wide bandwidth performance. The tunable ground technique proposed in this work will find numerous applications within future wireless communications systems.INDEX TERMS 3D printing, beam scanning, continuous beam steering, liquid metal, microstrip patch antenna, pattern reconfiguration, wide scan angle.

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“…A phase shifter as a vital part is generally used in microwave devices, 1 modulators, 2 beamforming networks 3 and the phased array systems 4 . The most universal application of phase shifters is in scanning phased‐array antennas, and the cost of phase shifters represent a considerable portion of the overall antenna cost.…”

Section: Introductionmentioning

confidence: 99%

Design of broadband reconfigurable phase shifters

Ding

Xue

Liu

et al. 2022

Int J RF Mic Comp-Aid Eng

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In this article, a reconfigurable phase shifter loaded two PIN diodes is presented. Compared with the traditional phase shifters, the proposed phase shifter can achieve two phase shifts in one single phase shifter by controlling the PIN diodes, which make it more superior in the feeding network's application of array antennas. Moreover, this phase shifter can widen the bandwidth, decrease the size and realize a wider phase shift range in a simple structure.For simplifying the process of this design, this article introduces a simply method to design the configurable phase shifter. To confirm the presented design, the proposed phase shifter is fabricated and measured. A good agreement between the measured and simulated results can be observed.

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A Tunable Concurrent Dual-Band Phase Shifter MMIC for Beam Steering Applications

Cited by 16 publications

References 14 publications

Dual-Band Reconfigurable Impedance Matching Networks

Dual-Band Reconfigurable Impedance Matching Networks

Continuous Beam Steering Realized by Tunable Ground in a Patch Antenna

Design of broadband reconfigurable phase shifters

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