Planar ultra-wideband antenna array using tightly coupled units

2015 ◽  
Author(s):  
Bo Huang ◽  
Zongxin Wang ◽  
Zhenxin Cao
Keyword(s):  
Antenna Array ◽  
Ultra Wideband ◽  
Wideband Antenna ◽  
Tightly Coupled

Modeling of an Ultra-Wideband antenna array devoted to near-field imaging

2010 ◽  
Author(s):  
Arnab Bhattacharya ◽  
Remi Sarkis ◽  
Gregory Hislop ◽  
Sebastien Lambot ◽  
Christophe Craeye
Keyword(s):  
Antenna Array ◽  
Near Field ◽  
Ultra Wideband ◽  
Wideband Antenna ◽  
Near Field Imaging ◽  
Field Imaging

scholarly journals Single-element based ultra-wideband antenna array concepts for wireless high-precision 2-D local positioning

2013 ◽  
Vol 11 ◽  
pp. 297-305 ◽  
Author(s):  
M. Gardill ◽  
G. Fischer ◽  
R. Weigel ◽  
A. Koelpin
Keyword(s):  
Antenna Array ◽  
High Precision ◽  
Antenna Arrays ◽  
Ultra Wideband ◽  
Antenna Element ◽  
Single Element ◽  
Angle Of Arrival ◽  
Wideband Antenna ◽  
Local Positioning System ◽  
5 Ghz

Abstract. We generally categorize the approaches for ultra-wideband antenna array design, and consequently propose simplified concepts for antenna arrays for a high-precision, ultra-wideband FMCW radar 2-D local positioning system to obtain robustness against multi path interference, perform angle of arrival analysis, as well as instantaneous heading estimation. We focus on low-cost and mechanical robust, industrial-application ready antennas. The antenna arrays are optimized for operation in the 5 GHz to 8 GHz frequency range and are designed towards supporting full omnidirectional 360° as well as partial half-plane direction of arrival estimation. Two different concepts for vehicle- as well as wall-mounted antenna array systems are proposed and discussed. We propose a wideband unidirectional bow-tie antenna array element having 97% impedance and 37% pattern bandwidth and a robust vehicle mounted omnidirectional antenna element having more than 85% impedance and pattern bandwidth.

A RBFNN approach for DoA estimation of ultra wideband antenna array

2008 ◽  
Vol 71 (4-6) ◽  
pp. 631-640 ◽  
Author(s):  
Min Wang ◽  
Shuyuan Yang ◽  
Shunjun Wu ◽  
Feng Luo
Keyword(s):  
Antenna Array ◽  
Doa Estimation ◽  
Ultra Wideband ◽  
Wideband Antenna

Wideband tightly-coupled compact array of dipole antennas arranged in triangular lattice

2018 ◽  
Vol 11 (4) ◽  
pp. 382-389
Author(s):  
Abhishek Kumar Awasthi ◽  
A. R. Harish
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Triangular Lattice ◽  
Dipole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Side Lobe Level ◽  
Tightly Coupled ◽  
Feed Network ◽  
Infinite Array

AbstractIn this paper, a compact wideband tightly-coupled dipole antenna array has been developed. Dipole elements are placed in the triangular lattice to reduce the side lobe level in the radiation pattern of one of the planes. To obtain the initial dimensions, 1-D infinite array analysis of the proposed array is carried out. The infinite array is designed to operate in 5–14.3 GHz (96.3% impedance bandwidth) frequency band. The antenna array can be used in C and X band applications. Inter-element coupling is utilized to achieve ultra-wideband performance in the proposed array. A 2 × 8 elements finite array is designed with the feed network. An ultra-wideband parallel strip to microstrip transition is used to feed the array elements. A metallic shielding for the feed network helps in reducing the back lobes. The overall size of the array with the reflector and the feed network is 148 mm × 224 mm × 54.5 mm. To validate the proposed concept, the antenna array is fabricated and tested. Impedance bandwidth of 2.8:1 along with broadside radiation pattern throughout the band of interest is observed.

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