Polarization conversion of metasurface for the application of wide band low-profile circular polarization slot antenna

2016 ◽  
Vol 109 (5) ◽  
pp. 054101 ◽  
Author(s):  
Yongjun Huang ◽  
Li Yang ◽  
Jian Li ◽  
Yao Wang ◽  
Guangjun Wen
Keyword(s):  
Circular Polarization ◽  
Wide Band ◽  
Slot Antenna ◽  
Polarization Conversion ◽  
Low Profile

scholarly journals A Low-Profile Wideband Linear-to-Circular Polarization Conversion Slot Antenna Using Metasurface

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1164 ◽  
Author(s):  
Jian Dong ◽  
Chang Ding ◽  
Jinjun Mo
Keyword(s):  
Circular Polarization ◽  
Satellite Communication ◽  
Axial Ratio ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Polarization Conversion ◽  
Compact Structure ◽  
Low Profile ◽  
Unit Cells ◽  
Linearly Polarized

A new low-profile wideband linear-to-circular polarization conversion microstrip slot antenna based on a metasurface for C-band satellite communication applications is proposed in this paper. The metasurface basically consists of four unit cells with parasitic square cross gaps arranged in a 2 × 2 layout. By loading the metasurface on the microstrip slot antenna, linearly polarized (LP) waves from the source antenna are converted into circularly polarized (CP) waves. Then, by etching three more parasitic square cross gaps in the middle of the metasurface, enhanced impedance bandwidth and axial ratio bandwidth (ARBW) are achieved. Furthermore, an equivalent circuit and a phase analysis are presented to explain how a wide ARBW is realized by the metasurface. A final model with an overall size of 36 × 36 × 3.5 mm3 (approximately 0.65λ0 × 0.65λ0 × 0.06λ0 at 5.5 GHz) was designed and fabricated. The measured S11 bandwidth and 3 dB ARBW were 39.25% from 4.28 GHz to 6.37 GHz and 17.77% from 5.18 GHz to 6.19 GHz, respectively. As a result, the proposed antenna shows great potential for satellite communication applications due to its low profile and compact structure, wide impedance bandwidth, and wide axial ratio bandwidth.

scholarly journals Ultra-Thin Metasheet for Dual-Wide-Band Linear to Circular Polarization Conversion With Wide-Angle Performance

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 163244-163254
Author(s):  
Ayesha Kosar Fahad ◽  
Cunjun Ruan ◽  
Rabia Nazir ◽  
Muhammad Saleem ◽  
Tanveer Ul Haq ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Wide Band ◽  
Polarization Conversion ◽  
Wide Angle

Wide band SRR-inspired slot antenna with circular polarization for wireless application

2016 ◽  
Vol 70 (9) ◽  
pp. 1199-1204 ◽  
Author(s):  
Maryam Rahimi ◽  
Mahshid Maleki ◽  
Marjan Soltani ◽  
Afsaneh Saee Arezomand ◽  
Ferdows B. Zarrabi
Keyword(s):  
Circular Polarization ◽  
Wide Band ◽  
Slot Antenna ◽  
Wireless Application

Achieving wide-band linear-to-circular polarization conversion using ultra-thin bi-layered metasurfaces

2015 ◽  
Vol 117 (4) ◽  
pp. 044501 ◽  
Author(s):  
Yongfeng Li ◽  
Jieqiu Zhang ◽  
Shaobo Qu ◽  
Jiafu Wang ◽  
Lin Zheng ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Wide Band ◽  
Polarization Conversion

scholarly journals Low-RCS, Circular Polarization, and High-Gain Broadband Antenna Based on Mirror Polarization Conversion Metasurfaces

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Liang Zhang ◽  
Changqing Liu ◽  
Chun Ni ◽  
Meng Kong ◽  
Xianliang Wu
Keyword(s):  
Circular Polarization ◽  
Antenna Array ◽  
Cross Section ◽  
High Gain ◽  
Slot Antenna ◽  
Polarization Conversion ◽  
Broadband Antenna ◽  
X Band ◽  
Fabry Perot ◽  
Operating Bandwidth

In this paper, a novel slot antenna array that is based on mirror polarization conversion metasurfaces (MPCM) is proposed. It achieves circular polarization (CP) and effectively reduces the radar cross section (RCS) and increases gain in the entire x-band. This design uses the mirrored composition of the polarization conversion metasurfaces (PCM) on the top surface of the substrate. The MPCM covers a 2 × 2 slot antenna array that is fed with by a sequentially rotating network. The CP radiation is realized by the polarization conversion characteristics of the PCM. At the same time, the reduction of RCS is achieved by 180° (±30°) reflection phase difference between two adjacent PCMs. The improvement in gain is achieved by using a Fabry–Perot cavity, which is constituted by the ground of the antenna and the PCM. Simulated and measured results show that approximately 46.4% of the operating bandwidth is in the range of 7.5–12 GHz (AR < 3 dB) and the gain of the antenna with MPCM is at least 5 dB higher than the reference antenna. Moreover, the monostatic RCS is reduced from 8 to 20 GHz.

scholarly journals Fully Integrated High Gain S-Band Triangular Slot Antenna for CubeSat Communications

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 156
Author(s):  
Mohamed El Bakkali ◽  
Moulhime El Bekkali ◽  
Gurjot Singh Gaba ◽  
Josep M. Guerrero ◽  
Lavish Kansal ◽  
...  
Keyword(s):  
Radiation Pattern ◽  
Return Loss ◽  
Impedance Matching ◽  
Electronic Devices ◽  
Wide Band ◽  
High Gain ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Fully Integrated ◽  
Low Profile

Among other CubeSat subsystems, Antenna is one of the most important CubeSat components as its design determines all the telecommunication subsystems’ performances. This paper presents a coplanar wave-guide (CPW)-fed equilateral triangular slot antenna constructed and analyzed for CubeSat communications at S-band. The proposed antenna alone presents high gain and ultra-wide band while its radiation pattern is bidirectional at an unlicensed frequency of 2450 MHz. The objective is to use the CubeSat chassis as a reflector for reducing the back-lobe radiation and hence minimizing interferences with electronic devices inside the CubeSat. This leads to a high gain of 8.20 dBi and a unidirectional radiation pattern at an industrial, scientific and mdical (ISM) band operating frequency of 2450 MHz. In addition to that, the presented antenna is low-profile and exhibits high return loss, ultra-wide impedance bandwidth, and good impedance matching at 2450 MHz.

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