Ka‐band multi‐focus and pattern manipulation in near‐field based on three‐dimensional printed transmit‐array antenna

2020 ◽  
Vol 14 (6) ◽  
pp. 510-514
Author(s):  
Shi Lin Liu ◽  
Xian Qi Lin ◽  
Zhong Bo Zhu
Keyword(s):  
Near Field ◽  
Three Dimensional ◽  
Array Antenna ◽  
Ka Band

scholarly journals Photonic-Assisted Reactive-Near-Field Analysis of a 3 dB-Tapered Ka-Band Array Antenna

2010 ◽  
Vol 10 (1) ◽  
pp. 18-24
Author(s):  
Dong-Joon Lee ◽  
Jeong-Jin Kang ◽  
No-Weon Kang ◽  
Wan-Sik Kim ◽  
Wee-Sang Park ◽  
...  
Keyword(s):  
Near Field ◽  
Array Antenna ◽  
Field Analysis ◽  
Ka Band

Proposed Ka-band array-fed near field Cassegrain system for NASA's Polar Probe Mission

1992 ◽  
Author(s):  
K. KELLOGG ◽  
V. KAPOOR ◽  
J. VACCHIONE ◽  
D. RASCOE ◽  
T. KOMAREK ◽  
...  
Keyword(s):  
Near Field ◽  
Ka Band ◽  
Polar Probe ◽  
Probe Mission

scholarly journals Imaging of bi-anisotropic periodic structures from electromagnetic near-field data

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Dinh-Liem Nguyen ◽  
Trung Truong
Keyword(s):  
Inverse Scattering ◽  
Maxwell Equations ◽  
Field Data ◽  
Periodic Structures ◽  
Near Field ◽  
Scattering Problem ◽  
Three Dimensional ◽  
Inverse Scattering Problem ◽  
Factorization Method ◽  
Unique Determination

AbstractThis paper is concerned with the inverse scattering problem for the three-dimensional Maxwell equations in bi-anisotropic periodic structures. The inverse scattering problem aims to determine the shape of bi-anisotropic periodic scatterers from electromagnetic near-field data at a fixed frequency. The factorization method is studied as an analytical and numerical tool for solving the inverse problem. We provide a rigorous justification of the factorization method which results in the unique determination and a fast imaging algorithm for the periodic scatterer. Numerical examples for imaging three-dimensional periodic structures are presented to examine the efficiency of the method.

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