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 Dual-Circularly Polarized 60 GHz Beam-Steerable Antenna Array with 8 × 8 Butler Matrix

2020 ◽  
Vol 10 (7) ◽  
pp. 2413 ◽  
Author(s):  
Yuntae Park ◽  
Jihoon Bang ◽  
Jaehoon Choi
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Mutual Coupling ◽  
Beam Steering ◽  
60 Ghz ◽  
Circularly Polarized ◽  
Butler Matrix ◽  
Left Handed ◽  
Steerable Antenna ◽  
The Right

A beam-steerable dual-circularly polarized 60 GHz antenna array is proposed. A 1 × 4 dual-fed stacked patch antenna array is integrated with an 8 × 8 Butler matrix. By utilizing the 8 × 8 Butler matrix, the proposed antenna array generates dual-circular polarization with beam-steering capability. The proposed antenna array system demonstrates good reflection coefficients in the frequency band ranging from 55.3 GHz to 64.9 GHz and has a mutual coupling of less than −10 dB over the frequency range of 57.5 GHz–63.2 GHz. At 60 GHz, the maximum gains and beam-steering angles for input ports 2, 4, 5, and 7 are 9.39 dBi at −38°, 10.67 dBi at −11°, 10.63 dBi at +11°, and 9.38 dBi at +39°, respectively. It is also demonstrated that the dual-polarization is well formed by switching the excitation ports. The right-handed circular polarization (RHCP) is formed when four ports from port 1 to port 4 are excited and left-handed circular polarization (LHCP) is formed when four ports from port 5 to port 8 are excited. The proposed antenna array system could be a good candidate for millimeter-wave 5G applications that require wide beam coverage and polarization diversity.

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

Circularly polarized beam-steering antenna array with enhanced characteristics using UCEBG structure

2015 ◽  
Vol 8 (6) ◽  
pp. 955-962
Author(s):  
Tohid Aribi ◽  
Mohammad Naser-Moghadasi ◽  
R. A. Sadeghzadeh
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Axial Ratio ◽  
Impedance Bandwidth ◽  
Frequency Range ◽  
Circularly Polarized ◽  
Rotation Method ◽  
Polarized Beam ◽  
Overall Performance ◽  
Band Gap Structure

A broadband circularly polarized (CP) beam-steering antenna array is presented. CP antenna is composed of four identical CP slot elements with 2 × 2 configuration and a 4 × 4 feeding network. CP slot element is utilized in array form to improve impedance bandwidth and sequentially rotation method is used to increase axial-ratio bandwidth. Moreover, uni-planer compact electromagnetic band-gap structure is applied to enhance the overall performance of antenna array. Measured results depict that the array has impedance bandwidth over a frequency range of 4.1–7 GHz (~53%) for S11 ≤ −10 dB and 3 dB axial-ratio bandwidth of 1.95 GHz that is between 4.6 and 6.55 GHz (~35%). The antenna array has peak gain of 11 dBi at 5.5 GHz.

scholarly journals Compound Metaloop Antenna for Circularly Polarized Beam Steering

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Hisamatsu Nakano ◽  
Tomoki Abe ◽  
Junji Yamauchi
Keyword(s):  
Beam Steering ◽  
Circularly Polarized ◽  
Polarized Beam

Beam-steering antenna array based on a butler matrix feed network with CP capability for satellite application

2019 ◽  
Vol 14 (07) ◽  
pp. P07005-P07005 ◽  
Author(s):  
Z. Mousavi ◽  
P. Rezaei ◽  
M. Borhani Kakhki ◽  
T.A. Denidni
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Butler Matrix ◽  
Feed Network
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