A Wideband and Wide Scanning Tightly Coupled Dipole Array with Meta-Surface Wide-Angle Impedance Matching

2021 ◽  
Vol 36 (7) ◽  
pp. 872-878
Author(s):  
Yuan Ye ◽  
Zhao Huang ◽  
Yun Jiang ◽  
Li-an Bian ◽  
Chang Zhu ◽  
...  
Keyword(s):  
Antenna Array ◽  
Massive Mimo ◽  
Low Cost ◽  
Impedance Matching ◽  
Ultra Wideband ◽  
Wide Angle ◽  
Scanning Angle ◽  
Low Profile ◽  
Tightly Coupled ◽  
Mimo Beamforming

A low profile ultra-wideband tightly coupled dipole array is studied. The antenna elements are fed by Marchand baluns of small size and low cost. A metasurface based wide-angle impedance matching (MSWAIM) layer is introduced to replace the traditional dielectric WAIM, improving the beam scan performance and reducing the antenna profile. The simulation shows that the proposed antenna array can operate over 2.4-12.4 GHz, approximately 5:1 bandwidth with maximum scanning angle of 50o for both E plane and 45o for H plane. The antenna profile above the ground is only 0.578λH at the highest operating frequency. This antenna array can find its application in the forthcoming massive MIMO beamforming systems for 5G.

scholarly journals Compact Enhanced CPW-Fed Antenna for UWB Applications

2021 ◽  
Vol 10 (1) ◽  
pp. 15-20
Author(s):  
H. Abdi ◽  
J. Nourinia ◽  
C. Ghobadi
Keyword(s):  
Low Cost ◽  
Impedance Matching ◽  
Ground Plane ◽  
Ultra Wideband ◽  
Compact Antenna ◽  
Low Profile ◽  
Rectangular Slit ◽  
Operating Bandwidth ◽  
Uwb Applications ◽  
Operational Range

This paper presents a compact antenna with co-planar waveguide (CPW) feed line for ultra-wideband (UWB) applications. The proposed antenna consists of a beveled radiating patch with wide rectangular slit at its upper side and a partial ground plane with insertion of symmetrically two-step beveled tapers at its center and sides, which provides a wide operating bandwidth. The antenna is integrated with narrow rectangular-shaped parasitic elements with different lengths placed adjacent to radiant patch to significantly enhance the impedance matching and bandwidth, especially at the upper frequencies. The measured results show an |S11| less than -10 dB bandwidth of 2.5-19.8 GHz with 155% fractional bandwidth. Simulation results are in good agreement with experimental measurements, which exhibits the validity of the proposed design approach. Moreover, the proposed CPW-fed antenna shows omnidirectional radiation patterns with stable gain within the operational range. The proposed compact antenna with low profile, light weight, large frequency bandwidth, ease of fabrication and low cost material is suitable for UWB applications.

Broadband, Wide-Scanning and Low-Profile Antenna Array Based on Tightly Coupled Dipoles

2021 ◽  
Author(s):  
Genbao Xu ◽  
Ming Jiang ◽  
Zeqing Du ◽  
Feng Yang ◽  
Jun Hu
Keyword(s):  
Antenna Array ◽  
Low Profile ◽  
Tightly Coupled

Impedance Matching Design of a Low-Profile Wide-Angle Scanning Phased Array

2019 ◽  
Vol 67 (10) ◽  
pp. 6401-6409 ◽  
Author(s):  
Fu-Long Jin ◽  
Xiao Ding ◽  
You-Feng Cheng ◽  
Bing-Zhong Wang ◽  
Wei Shao
Keyword(s):  
Phased Array ◽  
Impedance Matching ◽  
Wide Angle ◽  
Low Profile ◽  
Matching Design

scholarly journals A low profile dual-polarized tightly coupled dipole array of C-X-band.

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
A.I. Semenikhin ◽  
◽  
D.V. Semenikhina ◽  
Y.V. Yukhanov ◽  
◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Extended Period ◽  
Ultra Wideband ◽  
Low Profile ◽  
Small Height ◽  
X Band ◽  
Tightly Coupled ◽  
Feed Network ◽  
Design Requirements ◽  
Dual Polarized

Modern low-profile ultra-wideband antenna arrays are tightly coupled dipole array (TCDA). The paper presents a model of a low-profile dual-polarized of planar-type TCDA for operation in the 4÷12 GHz band with scanning in the sector of angles ±30° in two principal planes. In contradistinction to the well-known TCDAs, the proposed array is distinguished by its simplicity of design, the absence of balancing transformers, the extended period of 12x12mm, and the small height of 5.63mm (including the thickness of the upper homogeneous non-perforated matching layers of 1.67mm and the substrate layers of 3.968mm. The selected array period allows taking into account the special design requirements of the feed network for the array elements. The broadband of the TCDA (at VSWR<3.6) is achieved using the upper matching layers. These layers also serve as the radome for the array.

Low-Profile, Lightweight, Ultra-Wideband Tightly Coupled Dipole Arrays Loaded With Split Rings

2019 ◽  
Vol 67 (6) ◽  
pp. 4257-4262 ◽  
Author(s):  
Hangyu Zhang ◽  
Shiwen Yang ◽  
Shiwei Xiao ◽  
Yikai Chen ◽  
Shiwei Qu
Keyword(s):  
Ultra Wideband ◽  
Low Profile ◽  
Tightly Coupled
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