Reconfigurable dipole antenna array with shared parasitic elements for 360° beam steering

2020 ◽  
Vol 30 (12) ◽  
Author(s):  
Yu‐Lin Chang ◽  
Qing‐Xin Chu ◽  
Yixin Li
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Dipole Antenna

scholarly journals A Time Modulated Printed Dipole Antenna Array for Beam Steering Application

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Ruchi Gahley ◽  
Banani Basu
Keyword(s):  
Antenna Array ◽  
Beam Steering ◽  
Ground Plane ◽  
Differential Evolution Algorithm ◽  
Phase Variation ◽  
Time Instant ◽  
Dipole Antenna ◽  
Phase Shifters ◽  
Rf Switch ◽  
Rf Switches

This paper presents time modulated beam steered antenna array without phase shifters. The beam steering is analyzed considering a two-element time modulated antenna array (TMAA) of printed dipoles with microstrip via-hole balun. The proposed array resonates at the Industrial, Scientific, and Medical (ISM) radio bands, 2.45 GHz and 5.8 GHz, and offers wide bandwidth inherited due to modified structure of ground plane. Array elements are excited by complex exponential excitation signal through broadband power divider and radio frequency (RF) switches to achieve amplitude and phase variation without phase shifters. Differential Evolution algorithm is used to modify the time sequences of the RF switches connected to the antennas to generate radiation pattern with optimum dynamic efficiency by suppressing sideband radiations. Also switch-on time instant of RF switch connected to the subsequent element is modulated to steer the beam towards different directions. The proposed prototype is fabricated followed by parametric optimization. The fabrication results agree significantly well with simulated results.

Enhanced cross-polarization isolation of loop-dipole antenna array backed by dielectric cavities for 5G base stations

2021 ◽  
pp. 1-17
Author(s):  
Yiran Da ◽  
Xiaoming Chen ◽  
Mengting Li ◽  
Zhenyuan Zhang ◽  
Azremi Abdullah Al-Hadi ◽  
...  
Keyword(s):  
Antenna Array ◽  
Dipole Antenna ◽  
Base Stations ◽  
Cross Polarization

scholarly journals A Novel Dual-Polarized Wideband and Miniaturized Low Profile Magneto-Electric Dipole Antenna Array for mmWave 5G Applications

2021 ◽  
Vol 2 ◽  
pp. 326-334
Author(s):  
Yin Chen Chang ◽  
Ching Cheng Hsu ◽  
M. Idrees Magray ◽  
Hsu Yung Chang ◽  
Jenn-Hwan Tarng
Keyword(s):  
Antenna Array ◽  
Electric Dipole ◽  
Dipole Antenna ◽  
Low Profile ◽  
Dual Polarized
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