Millimeter-Wave Circular Polarized Beam-Steering Antenna Array for Gigabit Wireless Communications

2006 ◽  
Vol 54 (2) ◽  
pp. 743-746 ◽  
Author(s):  
K.-C. Huang ◽  
Z. Wang
Keyword(s):  
Wireless Communications ◽  
Antenna Array ◽  
Millimeter Wave ◽  
Beam Steering ◽  
Polarized Beam

Broadband Circularly Polarized Beam-Steering Antenna Array

2013 ◽  
Vol 61 (3) ◽  
pp. 1475-1479 ◽  
Author(s):  
Changrong Liu ◽  
Shaoqiu Xiao ◽  
Yong-Xin Guo ◽  
Yan-Ying Bai ◽  
Bing-Zhong Wang
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Circularly Polarized ◽  
Polarized Beam

scholarly journals Hybrid Beamforming Transmitter Modeling for Millimeter-Wave MIMO Applications

2020 ◽  
Author(s):  
Parastoo Taghikhani
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Beam Steering ◽  
Far Field ◽  
High Data ◽  
Array Configuration ◽  
Nonlinear Distortions ◽  
Wide Range ◽  
Hybrid Beamforming ◽  
Active Impedance

<div>Hybrid digital and analog beamforming is an</div><div>emerging technique for high-data-rate communication at</div><div>millimeter-wave (mm-wave) frequencies. Experimental evaluation</div><div>of such techniques is challenging, time-consuming, and costly.</div><div>This article presents a hardware-oriented modeling method for</div><div>predicting the performance of an mm-wave hybrid beamforming</div><div>transmitter. The proposed method considers the effect of active</div><div>circuit nonlinearity as well as the coupling and mismatch in the</div><div>antenna array. It also provides a comprehensive prediction of</div><div>radiation patterns and far-field signal distortions. Furthermore,</div><div>it predicts the antenna input active impedance, considering</div><div>the effect of active circuit load-dependent characteristics. The</div><div>method is experimentally verified by a 29-GHz beamforming</div><div>subarray module comprising an analog beamforming integrated</div><div>circuit (IC) and a 2 × 2 subarray microstrip patch antenna.</div><div>The measurement results present good agreement with the</div><div>predicted ones for a wide range of beam-steering angles. As a</div><div>use case of the model, far-field nonlinear distortions for different</div><div>antenna array configurations are studied. The demonstration</div><div>shows that the variation of nonlinear distortion versus steering</div><div>angle depends significantly on the array configuration and beam</div><div>direction. Moreover, the results illustrate the importance of</div><div>considering the joint operation of beamforming ICs, antenna</div><div>array, and linearization in the design of mm-wave beamforming</div><div>transmitters.</div>

Circularly Polarized Beam-Steering Antenna Array With Butler Matrix Network

2011 ◽  
Vol 10 ◽  
pp. 1278-1281 ◽  
Author(s):  
Changrong Liu ◽  
Shaoqiu Xiao ◽  
Yong-Xin Guo ◽  
Ming-Chun Tang ◽  
Yan-Ying Bai ◽  
...  
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Circularly Polarized ◽  
Butler Matrix ◽  
Polarized Beam

scholarly journals Hybrid Beamforming Transmitter Modeling for Millimeter-Wave MIMO Applications

2020 ◽  
Author(s):  
Parastoo Taghikhani
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Beam Steering ◽  
Far Field ◽  
High Data ◽  
Array Configuration ◽  
Nonlinear Distortions ◽  
Wide Range ◽  
Hybrid Beamforming ◽  
Active Impedance

<div>Hybrid digital and analog beamforming is an</div><div>emerging technique for high-data-rate communication at</div><div>millimeter-wave (mm-wave) frequencies. Experimental evaluation</div><div>of such techniques is challenging, time-consuming, and costly.</div><div>This article presents a hardware-oriented modeling method for</div><div>predicting the performance of an mm-wave hybrid beamforming</div><div>transmitter. The proposed method considers the effect of active</div><div>circuit nonlinearity as well as the coupling and mismatch in the</div><div>antenna array. It also provides a comprehensive prediction of</div><div>radiation patterns and far-field signal distortions. Furthermore,</div><div>it predicts the antenna input active impedance, considering</div><div>the effect of active circuit load-dependent characteristics. The</div><div>method is experimentally verified by a 29-GHz beamforming</div><div>subarray module comprising an analog beamforming integrated</div><div>circuit (IC) and a 2 × 2 subarray microstrip patch antenna.</div><div>The measurement results present good agreement with the</div><div>predicted ones for a wide range of beam-steering angles. As a</div><div>use case of the model, far-field nonlinear distortions for different</div><div>antenna array configurations are studied. The demonstration</div><div>shows that the variation of nonlinear distortion versus steering</div><div>angle depends significantly on the array configuration and beam</div><div>direction. Moreover, the results illustrate the importance of</div><div>considering the joint operation of beamforming ICs, antenna</div><div>array, and linearization in the design of mm-wave beamforming</div><div>transmitters.</div>

scholarly journals Conformal antenna array for millimeter-wave communications: performance evaluation

2015 ◽  
Vol 9 (1) ◽  
pp. 241-247 ◽  
Author(s):  
V. Semkin ◽  
A. Bisognin ◽  
M. Kyrö ◽  
V-M. Kolmonen ◽  
C. Luxey ◽  
...  
Keyword(s):  
Antenna Array ◽  
Mobile Devices ◽  
Millimeter Wave ◽  
Antenna Arrays ◽  
Beam Steering ◽  
Human Beings ◽  
Conformal Antenna ◽  
Supporting Structure ◽  
Millimeter Wave Antenna ◽  
Array Structures

In this paper, we study the influence of the radius of a cylindrical supporting structure on radiation properties of a conformal millimeter-wave antenna array. Bent antenna array structures on cylindrical surfaces may have important applications in future mobile devices. Small radii may be needed if the antenna is printed on the edges of mobile devices and in items which human beings are wearing, such as wrist watches, bracelets, and rings. The antenna under study consists of four linear series-fed arrays of four patch elements and is operating at 58.8 GHz with linear polarization. The antenna array is fabricated on polytetrafluoroethylene substrate with thickness of 127 µm due to its good plasticity properties, and low losses. Results for both planar and conformal antenna arrays show rather good agreement between simulation and measurements. The results show that conformal antenna structures allow achieving large angular coverage and may allow beam-steering implementations if switches are used to select between different arrays around a cylindrical supporting structure.

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