Improved reconfigurable designing of a circularly fed patch antenna using linear polarization

2014 ◽  
Author(s):  
Mrigendra Pratap Singh ◽  
Shivraj Singh
Keyword(s):  
Linear Polarization ◽  
Patch Antenna

scholarly journals A metasurface composed of 3-bit coding linear polarization conversion elements and its application to RCS reduction of patch antenna

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Xiangkun Kong ◽  
Qi Wang ◽  
Shunliu Jiang ◽  
Lingqi Kong ◽  
Jing Yuan ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Polarization Conversion ◽  
Electrical Behavior ◽  
Amplitude Response ◽  
Coding Sequence ◽  
Unit Cells ◽  
Simulation And Experiment ◽  
Equivalent Circuit Models

Abstract In this paper, a metasurface composed of 3-bit coding linear polarization conversion elements and its application to RCS reduction of the patch antenna is intensively studied. At first, 3-bit coding metasurface are constructed by a sequence of eight coded unit cells, which have a similar cross-polarized reflected amplitude response and gradient reflected phase responses covering 0–2π, respectively. Equivalent circuit models of these unit cells are created to describe their electrical behavior for the two linear incident polarizations at the same time. Then, a patch antenna is integrated on the 3-bit metasurface, of which the elements are placed with a 2-dimensional linear coding sequence. The metal square ring is set around the patch antenna to protect it from the disturbance of metasurface. Both the simulation and experiment results demonstrate that the designed metasurface can primarily reduce the antenna RCS at a broadband, while the antenna performances are not degraded significantly.

scholarly journals Dual- Band Antenna for Wi-Fi and 5G Applications

2019 ◽  
Vol 9 (1S5) ◽  
pp. 130-131
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Return Loss ◽  
Axial Ratio ◽  
Band Width ◽  
Dual Band ◽  
Circular Patch ◽  
Dual Band Antenna ◽  
Circular Patch Antenna

In this communication, a circular patch antenna is reported for dual- band operation based on VIAs. Initially the patch is resonating at single band with Linear Polarization (LP), and the Circular Polarization (CP) is obtained by inserting semi circular cuts at the edges of circular patch. The second band is achieved by loading the vertical metallic VIAs along the circumference of the patch antenna. The reported antenna is working at 2.4 GHz (Wi-Fi) and 3.5 GHz (5G) bands with Return Loss Band Width (RLBW) of 4.83% and 10.37% respectively. The Axial Ratio (AR) bandwidth at 5G band is 2.38% (3.31- 3.39 GHz)

scholarly journals Inverted L-Shaped CP Patch Antenna with Corner-Truncated Partial Ground Plane Diagonally Adjoined with Square Branch for L-Band Applications

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1085
Author(s):  
Phanuphong Boontamchauy ◽  
Titipong Lertwiriyaprapa ◽  
Chuwong Phongcharoenpanich
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Patch Antenna ◽  
Satellite Communication ◽  
Ground Plane ◽  
Axial Ratio ◽  
Concurrent Use ◽  
L Band ◽  
Good Agreement

This research proposes an inverted L-shaped patch antenna with a corner-truncated partial ground plane diagonally adjoined to a square branch for L-band applications. The adjoining square branch was used to perturb linear polarization for circular polarization, and the corner-truncated partial ground plane was utilized to enhance the axial ratio bandwidth (ARBW). Simulations were performed, an antenna prototype was fabricated, and experiments were carried out. The simulation and measured results were in good agreement. The proposed antenna could achieve an ARBW of 77.87% (1.09–2.48 GHz). The novelty of this research lies in the concurrent use of a square branch and a corner-truncated partial ground plane to realize wide ARBW in an L-band, rendering the technology suitable for satellite communication and navigation applications.

A Multi-linear Polarization Reconfigurable Unidirectional Patch Antenna

2017 ◽  
Vol 65 (8) ◽  
pp. 4299-4304 ◽  
Author(s):  
Shu-Lin Chen ◽  
Feng Wei ◽  
Pei-Yuan Qin ◽  
Y. Jay Guo ◽  
Xi Chen
Keyword(s):  
Linear Polarization ◽  
Patch Antenna

scholarly journals High Performance Metasurface Antennas

2020 ◽  
Author(s):  
Haisheng Hou ◽  
Haipeng Li ◽  
Guangming Wang ◽  
Tong Cai ◽  
Xiangjun Gao ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Circular Polarization ◽  
Linear Polarization ◽  
Patch Antenna ◽  
High Performance ◽  
Polarization State ◽  
High Gain ◽  
Electromagnetic Properties ◽  
High Gain Antenna ◽  
Block Effect

Recently, metasurfaces (MSs) have received tremendous attention because their electromagnetic properties can be controlled at will. Generally, metasurface with hyperbolic phase distributions, namely, focusing metasurface, can be used to design high-gain antennas. Besides, metasurface has the ability of controlling the polarization state of electromagnetic wave. In this chapter, we first propose a new ultrathin broadband reflected MS and take it into application for high-gain planar antenna. Then, we propose multilayer multifunctional transmitted MSs to simultaneously enhance the gain and transform the linear polarization to circular polarization of the patch antenna. This kind of high-gain antenna eliminates the feed-block effect of the reflected ones.

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