Results 291 to 300 of about 2,845,707 (370)
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IEEE transactions on microwave theory and techniques
In this article, a novel millimeter-wave highly efficient E-plane ridge gap waveguide (RGW) $4\times 4$ Butler matrix (BM) is proposed. It is the first time that the E-plane BM has been realized utilizing the RGW technology, which can promote the 3-D ...
Chun Geng, Ji-Wei Lian, Dazhi Ding
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In this article, a novel millimeter-wave highly efficient E-plane ridge gap waveguide (RGW) $4\times 4$ Butler matrix (BM) is proposed. It is the first time that the E-plane BM has been realized utilizing the RGW technology, which can promote the 3-D ...
Chun Geng, Ji-Wei Lian, Dazhi Ding
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Dual butler matrix active antenna system
Microwave and Optical Technology Letters, 2007AbstractThis article describes a smart antenna system that employs low noise amplifiers and two cascaded Butler Matrices. The output signals from the first Butler Matrix, which acts as a beamforming network, have high gain and narrowbeam width for long distance communication while the outputs from the second Butler Matrix, which acts as a mirror of the
Abdul Rahim, Sharul Kamal +1 more
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3-D-Printed Ultracompact Butler Matrix for Wideband Millimeter-Wave Beamforming
IEEE transactions on microwave theory and techniquesAn ultracompact 3-D-printed Butler matrix (BM) for wideband millimeter-wave (mm-wave) beamforming is proposed in this article. This is the first time that conductive and dielectric multimaterial 3-D printing technology is applied to realize a 3-D mm-wave
Zhiwei Yin +4 more
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IEEE Antennas and Wireless Propagation Letters, 2023
A two-stage beamforming technique for a wide tilt angle is proposed in this letter. The proposed structure has the potential to overcome the limitations of Butler matrix-based beamforming technique and reconfigurable frequency selective surfaces (FSS ...
R. Dutta +3 more
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A two-stage beamforming technique for a wide tilt angle is proposed in this letter. The proposed structure has the potential to overcome the limitations of Butler matrix-based beamforming technique and reconfigurable frequency selective surfaces (FSS ...
R. Dutta +3 more
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Folded C-Type SIW Butler Matrix
2019 IEEE MTT-S International Wireless Symposium (IWS), 2019This work presents a novel miniaturized 4×4 Butler Matrix (BM) base on Folded C-Type substrate integrated waveguide (FCSIW), operating from 28 to 32GHz. In theory, the size of FCSIW can be reduced by nearly 50% compared with the substrate integrated waveguide (SIW) with similar propagation and cut-off characteristics.
Qiang Sun +4 more
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IEEE transactions on microwave theory and techniques
This article presents a broadband miniaturization quadrature coupler with good amplitude and phase performance and its application to a 2-D scanning broadband Butler matrix.
H. Ding +4 more
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This article presents a broadband miniaturization quadrature coupler with good amplitude and phase performance and its application to a 2-D scanning broadband Butler matrix.
H. Ding +4 more
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IEEE Transactions on Circuits and Systems - II - Express Briefs, 2023
A new topology of modified Butler matrix (BM) based on three-way directional coupler (TWDC) is proposed in this brief. The two TWDCs are regarded as two submatrices, by alternately arranging the output ports of the two submatrices and introducing a front
Kangkang Han +3 more
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A new topology of modified Butler matrix (BM) based on three-way directional coupler (TWDC) is proposed in this brief. The two TWDCs are regarded as two submatrices, by alternately arranging the output ports of the two submatrices and introducing a front
Kangkang Han +3 more
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IEEE Transactions on Antennas and Propagation
For 6G applications, this communication reports the very first design of a 100-GHz band full-metallic Butler matrix-based 1-D beamforming multibeam antenna. The multibeam antenna combines a novel E-plane groove gap-waveguided (GGW) Butler matrix and a $1\
Xin Xu +5 more
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For 6G applications, this communication reports the very first design of a 100-GHz band full-metallic Butler matrix-based 1-D beamforming multibeam antenna. The multibeam antenna combines a novel E-plane groove gap-waveguided (GGW) Butler matrix and a $1\
Xin Xu +5 more
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Ka-Band Multibeam Patch Antenna Array Fed by Spoof-Surface-Plasmon-Polariton Butler Matrix
IEEE Transactions on Antennas and Propagation, 2023A novel Ka-band spoof-surface-plasmon-polaritons (SSPPs) Butler-matrix-fed multibeam patch antenna array is proposed. An SSPPs-fed single-layered microstrip patch antenna with suppressed cross-polarization is investigated acting as the radiator. By using
Di Cao, Yujian Li, Junhong Wang
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IEEE transactions on microwave theory and techniques, 2023
This article demonstrates a Ka-Band bi-directional reconfigurable switched beam-forming network based on a 4 ${\times }$ 4 Butler matrix in a 28-nm CMOS process.
Youngjoo Lee, B. Suh, Byung-Wook Min
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This article demonstrates a Ka-Band bi-directional reconfigurable switched beam-forming network based on a 4 ${\times }$ 4 Butler matrix in a 28-nm CMOS process.
Youngjoo Lee, B. Suh, Byung-Wook Min
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