Terahertz photoconductive antenna arrays: analysis and optimization

2015 ◽  
Author(s):  
Y. Zeng ◽  
T. Kreouzis ◽  
X. Chen ◽  
R.S. Donnan
Keyword(s):  
Antenna Arrays ◽  
Photoconductive Antenna

Optical Scanning Techniques for Characterization of Terahertz Photoconductive Antenna Arrays

2010 ◽  
Vol 58 (7) ◽  
pp. 2040-2045 ◽  
Author(s):  
Henry F Tiedje ◽  
Daryoosh Saeedkia ◽  
Michael Nagel ◽  
Harold K Haugen
Keyword(s):  
Antenna Arrays ◽  
Photoconductive Antenna ◽  
Optical Scanning

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°).

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