On the mutual coupling of UWB antenna arrays using EBG layers

2012 ◽  
Author(s):  
Osama M. Haraz ◽  
Abdel-Razik Sebak
Keyword(s):  
Antenna Arrays ◽  
Mutual Coupling ◽  
Uwb Antenna

Influence of the Aperture Edge Diffraction Effects on the Mutual Coupling Compensation Technique in Small Planar Antenna Arrays

2011 ◽  
Vol 57 (1) ◽  
pp. 115-120 ◽  
Author(s):  
Mariusz Zamłyński ◽  
Piotr Słobodzian
Keyword(s):  
Antenna Arrays ◽  
Mutual Coupling ◽  
Planar Antenna ◽  
Sidelobe Level ◽  
Edge Diffraction ◽  
Narrow Angle ◽  
Compensation Technique ◽  
Diffraction Effects ◽  
Linear Antenna Arrays

Influence of the Aperture Edge Diffraction Effects on the Mutual Coupling Compensation Technique in Small Planar Antenna Arrays In this paper the quality of a technique to compensate for mutual coupling (and other phenomena) in small linear antenna arrays is investigated. The technique consists in calculation of a coupling matrix, which is than used to determine corrected antenna array excitation coefficients. Although the technique is known for more than 20 years, there is still very little information about how different phenomena existing in a real antenna arrays influence its performance. In this paper two models of antenna arrays are used. In the first model the effect of mutual coupling is separated from the aperture edge diffraction. In the second model antenna both mutual coupling and aperture edge diffraction effects are included. It is shown that mutual coupling itself can be compensated very well and an ultralow sidelobe level (i.e. -50 dB) could be achieved in practice. In the presence of diffraction effects -46.3 dB sidelobe level has been attained, but radiation pattern can be controled only in narrow angle range (i.e. up to ±60°).

scholarly journals The Effect of Mutual Coupling on the Performance of GNSS Antenna Arrays

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 20480-20487 ◽  
Author(s):  
Xiaojian Wang ◽  
Jianxing Li ◽  
Wenchao Chen ◽  
Ming Zhang ◽  
Juan Chen ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Mutual Coupling

Triangular lattices for mutual coupling reduction in patch antenna arrays

2011 ◽  
Author(s):  
Nurul H. Noordin ◽  
Ahmed O. El-Rayis ◽  
Nakul Haridas ◽  
Brian Flynn ◽  
Ahmet T. Erdogan ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Patch Antenna ◽  
Mutual Coupling ◽  
Triangular Lattices ◽  
Mutual Coupling Reduction

scholarly journals Infrastructure-Aided Localization with UWB Antenna Arrays

Frequenz ◽  
2009 ◽  
Vol 63 (9-10) ◽  
Author(s):  
G. Adamiuk ◽  
S. Sczyslo ◽  
S. Arafat ◽  
W. Wiesbeck ◽  
T. Zwick ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Uwb Antenna

Design and Analysis of Integrated Wilkinson Power Divider-Fed Conformal High-Gain UWB Array Antenna with Band Rejection Characteristics for WLAN Applications

2020 ◽  
pp. 2150133
Author(s):  
Soufian Lakrit ◽  
Hicham Medkour ◽  
Sudipta Das ◽  
B. T. P. Madhav ◽  
Wael A. E. Ali ◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Local Area Network ◽  
Ultra Wideband ◽  
Bending Test ◽  
Power Divider ◽  
Area Network ◽  
Curved Surfaces ◽  
Uwb Antenna ◽  
High Isolation ◽  
Wilkinson Power Divider

Flexible ultra-wideband (UWB) antenna arrays with band notching characteristics are proposed in this work. A new wideband and high-isolation Wilkinson power divider (WPD) is designed to construct the feed systems of the UWB antenna arrays. The proposed WPD is achieved by introducing a significant modification to the conventional WPD and the new one is composed of four isolation stages. Multiple stages helped to achieve wideband from 2[Formula: see text]GHz to more than 12[Formula: see text]GHz with high isolation characteristics of more than 20[Formula: see text]dB and insertion losses around 3.3[Formula: see text]dB. The designed WPD is then applied to feed two UWB monopole antenna arrays which offer a notched band centered at 5.5[Formula: see text]GHz to reject interference from wireless local area network (WLAN) system and can be integrated with curved surfaces. To verify the performance of the proposed structure, two array configurations are practically fabricated and measured. The results show that both the arrays have UWB operational bandwidth (3.5–11.8[Formula: see text]GHz for [Formula: see text] array and 3.6–12[Formula: see text]GHz for [Formula: see text] array) that includes the UWB spectrum. Attractive agreement between simulation and measurement results is obtained. Furthermore, the bending test is carried out on the [Formula: see text] array showing the good performance of the proposed system when installed on curved surfaces for different bent angles.

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