Reflection phase and surface wave propagation characteristics of a symmetrical perforated high impedance surface

2016 ◽  
Author(s):  
Saud M. Saeed ◽  
Constantine A. Balanis ◽  
Ahmet C. Durgun
Keyword(s):  
Wave Propagation ◽  
Surface Wave ◽  
Propagation Characteristics ◽  
Impédance Surface ◽  
Impedance Surface ◽  
Reflection Phase ◽  
High Impedance ◽  
Surface Wave Propagation ◽  
High Impedance Surface

Reflection phase characterization of the MEMS-based high impedance surface

2012 ◽  
Author(s):  
Zhou Du ◽  
Juha Ala-Laurinaho ◽  
Dmitry Chicherin ◽  
Antti V. Raisanen ◽  
Mikael Sterner ◽  
...  
Keyword(s):  
Impédance Surface ◽  
Impedance Surface ◽  
Reflection Phase ◽  
High Impedance ◽  
Phase Characterization ◽  
High Impedance Surface

scholarly journals A Study of a Wide-Angle Scanning Phased Array Based on a High-Impedance Surface Ground Plane

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Tian Lan ◽  
Qiu-Cui Li ◽  
Yu-Shen Dou ◽  
Xun-Ya Jiang
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Ground Plane ◽  
Wide Angle ◽  
Impédance Surface ◽  
Impedance Surface ◽  
The Real ◽  
Reflection Phase ◽  
High Impedance ◽  
High Impedance Surface

This paper presents a two-dimensional infinite dipole array system with a mushroom-like high-impedance surface (HIS) ground plane with wide-angle scanning capability in the E-plane. The unit cell of the proposed antenna array consists of a dipole antenna and a four-by-four HIS ground. The simulation results show that the proposed antenna array can achieve a wide scanning angle of up to 65° in the E-plane with an excellent impedance match and a small S11. Floquet mode analysis is utilized to analyze the active impedance and the reflection coefficient. Good agreement is obtained between the theoretical results and the simulations. Using numerical and theoretical analyses, we reveal the mechanism of such excellent wide scanning properties. For the range of small scanning angles, these excellent properties result mainly from the special reflection phase of the HIS ground, which can cause the mutual coupling between the elements of the real array to be compensated by the mutual coupling effect between the real array and the mirror array. For the range of large scanning angles, since the surface wave (SW) mode could be resonantly excited by a high-order Floquet mode TM−1,0 from the array and since the SW mode could be converted into a leaky wave (LW) mode by the scattering of the array, the radiation field from the LW mode is nearly in phase with the direct radiating field from the array. Therefore, with help from the special reflection phase of the HIS and the designed LW mode of the HIS ground, the antenna array with an HIS ground can achieve a wide-angle scanning performance.

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