A reconfigurable ultra-wideband polarization converter based on metasurface incorporated with PIN diodes

2019 ◽  
Vol 125 (13) ◽  
pp. 135105 ◽  
Author(s):  
Jianghao Tian ◽  
Xiangyu Cao ◽  
Jun Gao ◽  
Huanhuan Yang ◽  
Jiangfeng Han ◽  
...  
Keyword(s):  
Ultra Wideband ◽  
Polarization Converter ◽  
Pin Diodes

Compact UWB monopole antenna with reconfigurable band-notch characteristics

2019 ◽  
Vol 12 (3) ◽  
pp. 252-258 ◽  
Author(s):  
Liping Han ◽  
Jing Chen ◽  
Wenmei Zhang
Keyword(s):  
Ground Plane ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Dual Band ◽  
Radiation Patterns ◽  
Pin Diodes ◽  
Notch Band ◽  
Rectangular Patch ◽  
Compact Size ◽  
Defected Ground Plane

AbstractA compact ultra-wideband (UWB) monopole antenna with reconfigurable band-notch characteristics is demonstrated in this paper. It is comprised of a modified rectangular patch and a defected ground plane. The band-notch property in the WiMAX and WLAN bands is achieved by etching an open-ended slot on the radiating patch and an inverted U-shaped slot on the ground plane, respectively. To obtain the reconfigurable band-notch performance, two PIN diodes are inserted in the slots, and then the notch-band can be switched by changing the states of the PIN diodes. The antenna has a compact size of 0.47 λ1 × 0.27 λ1. The simulated and measured results indicate that the antenna can operate at a UWB mode, two single band-notch modes, and a dual band-notch mode. Moreover, stable radiation patterns are obtained.

Ultra-wideband and high-efficiency cross polarization converter based on anisotropic metasurface

2016 ◽  
Vol 58 (10) ◽  
pp. 2402-2405 ◽  
Author(s):  
Bao-Qin Lin ◽  
Xin-Yu Da ◽  
Jia-Liang Wu ◽  
Wei Li ◽  
Yin-Wu Fang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Ultra Wideband ◽  
Cross Polarization ◽  
Polarization Converter

scholarly journals Ultra-wideband high-efficiency reflective linear-to-circular polarization converter based on metasurface at terahertz frequencies

2017 ◽  
Vol 25 (22) ◽  
pp. 27616 ◽  
Author(s):  
Yannan Jiang ◽  
Lei Wang ◽  
Jiao Wang ◽  
Charles Nwakanma Akwuruoha ◽  
Weiping Cao
Keyword(s):  
Circular Polarization ◽  
High Efficiency ◽  
Ultra Wideband ◽  
Polarization Converter ◽  
Terahertz Frequencies

scholarly journals Experimental Characterization of 2 × 2 Electronically Reconfigurable Polarization Converter Unit Cells at X-Band

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Biswarup Rana ◽  
In-Gon Lee ◽  
Ic-Pyo Hong
Keyword(s):  
Phase Shifter ◽  
Unit Cell ◽  
Polarization Conversion ◽  
Experimental Characterization ◽  
Polarization Converter ◽  
Pin Diodes ◽  
Transition Section ◽  
X Band ◽  
Unit Cells ◽  
Converter Unit

In this paper, an electronically reconfigurable polarization converter unit cell operating at X-band is proposed. The polarization converter unit cell consists of a passive patch, a phase shifter, and an active patch. There are two PIN diodes on the active patch. By switching the bias conditions of those PIN diodes, an electronically reconfigurable polarization converter is conceived. Both the passive and active patches are circular, and there are circular types of slots on both patches to enhance the operating bandwidth. To compensate for the capacitance introduced by PIN diodes, an equivalent capacitance structure is introduced on the active patch. 2 × 2 unit cells are designed to check the performance of the unit cell for polarization conversion applications. In addition, a novel type of experimental characterization technique is proposed to check the performance of polarization conversion using 2 × 2 unit cells. Two WR-90 waveguide sections, two rectangular to square sections, and a power supply are taken for the measurements. The rectangular to square waveguide transition section is designed in such a way so that 2 × 2 unit cells can be perfectly adjusted on the transition section and the performance of the 2 × 2 unit cells can be measured. The simulation results of the 8 × 8 array are also added to a miniaturized X-band horn antenna to check the performance of the overall array.

Ultra-wideband and high-efficiency reflective polarization converter for both linear and circular polarized waves

2019 ◽  
Vol 125 (2) ◽  
Author(s):  
Baoqin Lin ◽  
Jianxin Guo ◽  
Lintao Lv ◽  
Jing Wu ◽  
Yahong Ma ◽  
...  
Keyword(s):  
High Efficiency ◽  
Ultra Wideband ◽  
Polarization Converter ◽  
Polarized Waves

Ultra-wideband linear-to-circular polarization converter with ellipse-shaped metasurfaces

2019 ◽  
Vol 451 ◽  
pp. 124-128 ◽  
Author(s):  
Yu-zhou Ran ◽  
Li-hua Shi ◽  
Jian-bao Wang ◽  
Shi-Bin Wang ◽  
Guang-Ming Wang ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Ultra Wideband ◽  
Polarization Converter
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