A parameter study of stripline-fed Vivaldi notch-antenna arrays

1999 ◽  
Vol 47 (5) ◽  
pp. 879-886 ◽  
Author(s):  
Joon Shin ◽  
D.H. Schaubert
Keyword(s):  
Antenna Arrays ◽  
Parameter Study

Specific Features Pertinent to the Use of Planar Antenna Arrays with Central Symmetry in Interference Cancellers

Vestnik MEI ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 123-128
Author(s):  
Pavel S. Gribov ◽  
◽  
Maria A. Gribova ◽  
Aleksandr Yu. Shatilov ◽  
◽  
...  
Keyword(s):  
Antenna Arrays ◽  
Central Symmetry ◽  
Planar 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°).

The buckling resistance of welded plate girders taking into account the influence of post-welding imperfections – Part 1: Parameter study

2017 ◽  
Vol 59 (1) ◽  
pp. 47-56 ◽  
Author(s):  
Benjamin Launert ◽  
Radosław Szczerba ◽  
Marcin Gajewski ◽  
Michael Rhode ◽  
Hartmut Pasternak ◽  
...  
Keyword(s):  
Parameter Study ◽  
Plate Girders ◽  
Buckling Resistance

Evaluation of Hardware Architectures for HF Antenna Arrays

1988 ◽  
Author(s):  
R. K. Balasubramaniam ◽  
Victor Frost ◽  
Roger Spohn ◽  
Ryan Moates ◽  
Stephen Fechtel
Keyword(s):  
Antenna Arrays ◽  
Hardware Architectures
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