Link Characteristics of Directional Surface Wave Antenna Arrays

2018 ◽  
Author(s):  
P. Baniya ◽  
K.L. Melde
Keyword(s):  
Surface Wave ◽  
Antenna Arrays ◽  
Wave Antenna

scholarly journals Metasurfaces for Reconfiguration of Multi-Polarization Antennas and Van Atta Reflector Arrays

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1262
Author(s):  
Mohammed Alharbi ◽  
Meshaal A. Alyahya ◽  
Subramanian Ramalingam ◽  
Anuj Y. Modi ◽  
Constantine A. Balanis ◽  
...  
Keyword(s):  
Surface Wave ◽  
Antenna Arrays ◽  
Performance Enhancement ◽  
High Gain ◽  
Wave Antenna ◽  
Recent Developments ◽  
Four Square ◽  
And Performance ◽  
Retrodirective Array ◽  
Ring Elements

This paper discusses the application of metasurfaces for three different classes of antennas: reconfiguration of surface-wave antenna arrays, realization of high-gain polarization-reconfigurable leaky-wave antennas (LWAs), and performance enhancement of van Atta retrodirective reflectors. The proposed surface-wave antenna is designed by embedding four square ring elements within a metasurface, which improves matching and enhances the gain when compared to conventional square-ring arrays. The design for linear polarization comprises of a 1 × 4 arrangement of ring elements, with a 0.56λ spacing, placed amidst periodic patches. A 2 × 2 arrangement of ring elements is utilized for reconfiguration from linear to circular polarization, where a similar peak gain with better port isolation is realized. A prototype of the 2 × 2 array is fabricated and measured; a good agreement is observed between simulations and measurements. In addition, the concepts of the design of polarization-diverse holographic metasurface LWAs that form a pencil beam in the desired direction with a reconfigurable polarization are discussed. Moreover, recent developments incorporating polarization-reconfigurability in metasurface LWAs are briefly reviewed. In the end, the theory of van Atta arrays is outlined and their monostatic RCS is reviewed. A conventional retrodirective array is designed using aperture-coupled patch antennas with a microstrip-line feeding network, where the scattering from the structure itself degrades the performance of the reflector. This is followed by the integration of judiciously synthesized metasurfaces to reconfigure and improve the performance of retrodirective reflectarrays by removing the above-mentioned undesired scattering from the structure.

Novel surface-wave antenna

1996 ◽  
Vol 143 (1) ◽  
pp. 1 ◽  
Author(s):  
G. Fikioris ◽  
R.W.P. King ◽  
T.T. Wu
Keyword(s):  
Surface Wave ◽  
Wave Antenna

Broadband Surface-Wave Antenna With a Novel Nonuniform Tapered Metasurface

2017 ◽  
Vol 16 ◽  
pp. 2902-2905 ◽  
Author(s):  
Guirong Feng ◽  
Lei Chen ◽  
Xingsi Xue ◽  
Xiaowei Shi
Keyword(s):  
Surface Wave ◽  
Wave Antenna

A metasurfaced surface-wave antenna with performance enhancement

2017 ◽  
Vol 31 (11-12) ◽  
pp. 1167-1176 ◽  
Author(s):  
Guirong Feng ◽  
Xiaowei Shi ◽  
Lei Chen ◽  
Hao Yue ◽  
Yaozhou Yang
Keyword(s):  
Surface Wave ◽  
Performance Enhancement ◽  
Wave Antenna

Asymmetric feeding active leaky-wave antenna arrays

1998 ◽  
Vol 18 (1) ◽  
pp. 14-17 ◽  
Author(s):  
Chien Jen Wang ◽  
Jin Jei Wu ◽  
Cheng Chi Hu ◽  
Christina F. Jou
Keyword(s):  
Antenna Arrays ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna
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