Journal Article10.1109/TAP.2016.2565679
Wideband Folded Reflectarray Using Novel Elements With High Orthogonal Polarization Isolation
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TL;DR: In this paper, a two-layer element structure is used to control the reflection phase of two orthogonally polarized waves independently and the element presents a large phase variation of about 700° and approximately linear phase curves.
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Abstract: A wideband folded reflectarray antenna (FRA) operating in a frequency band of 11–15 GHz is proposed in this communication. It consists of novel dual-polarization elements with high orthogonal polarization isolation. A two-layer element structure is used to control the reflection phase of two orthogonally polarized waves independently and the element presents a large phase variation of about 700° and approximately linear phase curves. Meanwhile, the multifrequency phase matching method is applied in the FRA design. A 30% bandwidth for a 1-dB gain drop, a peak aperture efficiency of 49.1%, and sidelobe levels below −14 dB are achieved. Factors with strong influences on the aperture efficiency are discussed. The simulated results are experimentally verified by an FRA prototype fed by an open-ended waveguide.
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Citations
Folded Transmitarray Antenna With Circular Polarization Based on Metasurface
Jin Yang,Shang Tong Chen,Mao Chen,Jun Chen Ke,Ming Zheng Chen,Cheng Zhang,Rui Yang,Xin Li,Qiang Cheng,Tie Jun Cui +9 more
TL;DR: In this article, a low-profile broadband planar circularly polarized folded transmitarray antenna (CPFTA) based on well-designed top and bottom metasurfaces (MSs) is proposed.
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A Multibeam Folded Reflectarray Antenna With Wide Coverage and Integrated Primary Sources for Millimeter-Wave Massive MIMO Applications
Yun Hu,Wei Hong,Zhi Hao Jiang +2 more
TL;DR: A millimeter-wave multibeam folded reflectarray antenna (FRA) with wide coverage in the azimuth plane and integrated planar primary sources for massive multiple-input multiple-output wireless communications is proposed.
88
Broadband Folded Transmitarray Antenna With Ultralow-Profile Based on Metasurfaces
TL;DR: In this paper, a broadband folded transmitarray antenna (FTA) with ultralow profile, high gain, and high polarization purity is proposed in this communication, which consists of a focusing metasurface (MS) with the function of reflecting and transmitting two orthogonal linear-polarized waves, a reflection-type linear polarization conversion MS, and an open waveguide as a feed.
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Novel Wideband Polarization Rotating Metasurface Element and Its Application for Wideband Folded Reflectarray
TL;DR: In this article, a novel wideband polarization rotating element based on a metasurface antenna is proposed to achieve high polarization isolation and low cross-polarization, while a large polarization rotating bandwidth of 27.6% can be achieved.
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A Wideband, Single-Layer Reflectarray Exploiting a Polarization Rotating Unit Cell
TL;DR: In this article, a single-layer reflectarray antenna with 1-bit phase quantization was designed for a wideband, polarization rotating unit cell that rotates the polarization of the reflected wave with respect to that of the incident wave.
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References
Design of millimeter wave microstrip reflectarrays
TL;DR: In this paper, the theoretical modeling and practical design of millimeter wave reflectarrays using microstrip patch elements of variable size is discussed and a full-wave treatment of plane wave reflection from a uniform infinite array of microstrip patches is described and used to generate the required patch-design data and to calculate the radiation patterns of the reflectarray.
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The reflectarray antenna
D. Berry,R. Malech,W. Kennedy +2 more
TL;DR: In this paper, a class of antennas that utilizes arrays of elementary antennas as reflecting surfaces has been investigated, called Reflectarray, which combines much of the simplicity of the reflector-type antenna with the performance versatility of the array type.
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Design of two-layer printed reflectarrays using patches of variable size
TL;DR: In this paper, a multilayer reflectarray composed of two stacked arrays with rectangular patches of variable size is demonstrated, and a progressive phase distribution on the reflector surface is achieved by adjusting the dimensions of the patches.
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Bandwidth Improvement in Large Reflectarrays by Using True-Time Delay
TL;DR: In this paper, a significant improvement in the bandwidth of large reflectarrays is demonstrated using elements which allow true-time delay, where the phase distribution is truncated to 360deg and the true phase delay is maintained (three cycles of 360deg).
Reconfigurable Folded Reflectarray Antenna Based Upon Liquid Crystal Technology
TL;DR: In this paper, a planar lower reflector with an incorporated feed at its center and a polarizing grid on top as an upper reflector was proposed for beam steering in reconfigurable, high gain, low profile, and low-cost antennas.
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