Field Experiments to Investigate Cross-polarization Characteristics of a Dipole Array Antenna in a Water-filled Borehole

2019 ◽  
Author(s):  
S. Ebihara ◽  
K. Toyozawa ◽  
T. Hasegawa
Keyword(s):  
Field Experiments ◽  
Array Antenna ◽  
Cross Polarization ◽  
Polarization Characteristics

scholarly journals Ultrawideband, Wide Scanning Stripline-Fed Tightly Coupled Array Antenna Based on Parallel-Dipole Elements

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5065
Author(s):  
Xiuye Liang ◽  
Weishuang Yin ◽  
Ang Chen ◽  
Zhe Zhang ◽  
Jianping Zeng ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Array Antenna ◽  
Cross Polarization ◽  
Matching Process ◽  
Compact Size ◽  
Tightly Coupled ◽  
Infinite Array ◽  
Polarization Characteristics ◽  
The Cross ◽  
Uwb Applications

A stripline-fed tightly coupled array antenna with compact size, large scan volume and low cross-polarization characteristics is proposed for ultrawideband (UWB) applications. Simple impedance-matching process is realized by using parallel dual dipoles. Meanwhile, the parallel symmetrical radiating structures minimize the cross-polarization field components dramatically. The mitigation of various undesired resonances is studied in detail. An infinite array is designed to achieve 3:1 bandwidth (6−18 GHz) when scanning ±60∘ in the E-/D-planes (VSWR < 2.5) and H-plane (VSWR < 3.5). The cross-polarization levels remain below −29 dB at broadside. A 16 × 16 prototype is fabricated to demonstrate the design. The measured results are consistent well with the simulated ones. The overall size of the prototype at the lowest operating frequency is 3×3×0.4λ03 (15×15×2cm3). Due to its wide bandwidth, good electronic scan performance and compact size, the proposed antenna array is a good candidate for modern wireless platforms.

scholarly journals WIDE-BAND PATCH ANTENNA ARRAY WITH LOW CROSS-POLARIZATION CHARACTERISTICS

2017 ◽  
Vol 71 ◽  
pp. 23-28
Author(s):  
Feibiao Dong ◽  
Limei Xu ◽  
Xue-Sheng Li ◽  
Min Chen ◽  
Xiao-Mei Xie
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
Wide Band ◽  
Cross Polarization ◽  
Polarization Characteristics

scholarly journals A Dual Layered Loop Array Antenna for Base Stations With Enhanced Cross-Polarization Discrimination

2018 ◽  
Vol 66 (12) ◽  
pp. 6975-6985 ◽  
Author(s):  
Can Ding ◽  
Hai-Han Sun ◽  
Richard W. Ziolkowski ◽  
Y. Jay Guo
Keyword(s):  
Array Antenna ◽  
Base Stations ◽  
Cross Polarization
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