A Low-Mutual Coupling Dual-Band Dual-Reflectarray Antenna With the Potentiality of Arbitrary Polarizations

Zhao, Jianing; Li, Tianming; Cui, Xinhong; Zhao, Xiling; Li, Hao; Hu, Biao; Wang, Haiyang; Zhou, Yihong; Liu, Qiao

doi:10.1109/lawp.2017.2771205

Cited by 31 publications

(20 citation statements)

References 10 publications

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“…For high‐gain applications, reflectarray antennas, which have virtues of low‐cost consume, control phase independently, simplified feed network, and planar structure, have received increasing attention, whereas phased array antennas and parabola antennas were often used in the past years . As a result of the above‐mentioned advantages, fruitful reflectarray antennas are studied in recent years, such as beam‐scanning reflectarrays, multibeam reflectarrays, multiband reflectarrays, dual‐reflectarrays, resonator reflectarrays, conformal reflectarrays, and so on . Furthermore, reflectarrays are the one with a very high prospective for the fifth generation (5G) wireless communication system .…”

Section: Introductionmentioning

confidence: 99%

“…1 As a result of the above-mentioned advantages, fruitful reflectarray antennas are studied in recent years, such as beamscanning reflectarrays, multibeam reflectarrays, multiband reflectarrays, dual-reflectarrays, resonator reflectarrays, conformal reflectarrays, and so on. [2][3][4][5][6][7][8][9] Furthermore, reflectarrays are the one with a very high prospective for the fifth generation (5G) wireless communication system. 10,11 In the 5G communication system, wideband behavior is required due to the pursuit of higher data rates, which is supported by the fast switching mechanisms.…”

Section: Introductionmentioning

confidence: 99%

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A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Zhao

Wang

et al. 2019

Micro & Optical Tech Letters

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This letter presents a novel log‐periodic reflectarray element based on a single‐layer substrate. To achieve a full 360° phase coverage with a gentle slope, the corresponding parameters are optimized. For the sake of minimizing the effects of the feed blockage, the proposed element is used to construct a Ka‐band offset‐fed reflectarray antenna whose aperture size is 81 mm × 81 mm. Moreover, a corresponding prototype is also fabricated to test the actual radiation performance. The measured maximum gain is 26.65 dB at the center frequency of 33 GHz with the aperture efficiency of 46.34%. Moreover, the measured peak sidelobe for E‐plane is lower than −17.87 dB and 10.69% of 1‐dB gain bandwidth is also achieved, which demonstrates that the proposed antenna features the characteristic of broadband. The simulated and measured results show that the proposed antenna features good radiation performance, which has the potential for 5G communication systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Zhao

Wang

et al. 2019

Micro & Optical Tech Letters

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“…A sample reflectarray antenna with hybrid elements is fabricated and shown in Figure . The reflectarray antenna is demountable, as shown in the schematic view of the experimental setup (see Figure ) . All subassemblies include a horn feed, a reflective surface, a metallic ground spliced on a plexiglass base and a pair of vertical brackets.…”

Section: Fabrication and Measurementmentioning

confidence: 99%

Gain enhancement for low cost planar reflectarray antenna using hybrid elements

Wang

Huang

Jin

et al. 2020

Int J RF Microw Comput Aided Eng

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By using a hybrid configuration of reflective elements of at least two different types, the gain of a planar reflectarray antenna is successfully enhanced. According to the calculated phase‐shift distribution, the reflecting surface is covered mainly by traditional low‐loss element such as square patches (SPs) in the first. Then the blank cells, of which the required phase‐shift exceed the operational range of the SP, are covered by other elements having large phase‐shift, for example, the three‐ring patches. As a result, the antenna efficiency is kept in a high level because the low loss elements are in majority. Meanwhile, the main beam efficiency is kept high because the sidelobe level is suppressed by large phase‐shift elements. For verification, an experimental array is fabricated on an inversely suspended, low cost FR4 substrate. The simulated result shows that the sample antenna is advanced in high gain and low sidelobe level, comparing with its traditional counterparts with only one type reflectarray elements. The measured result agrees well with the simulations, which show the gain of the antenna is higher than 26 dB, while the sidelobe suppression is lower than −19 dB. The aperture efficiency reaches about 47.04% at 14.0 GHz, which achieves the performance of high‐cost reflectarray antenna.

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“…If both reflectarrays are implemented in flat panels, the antenna can be folded and deployed in a more efficient way than a dual reflector system [18]. In the recent years, several dual reflectarray antennas have been proposed for different applications, such as the provision of shaped beams for mobile service base stations [19], the design of monopulse antennas for radar tracking systems [20], the generation of multiple beams for automotive radar antennas [17].…”

Section: Reflectarray Antennas and Their Applicationsmentioning

confidence: 99%

“…Dual reflector configurations in which the sub-, the main or both reflectors are reflectarrays have been proposed to obtain a better performance than conventional single and dual reflector antennas. They can be suitable for some applications requiring multiple beams, low cross-polarization or shaped beams [15]- [20], since the use of two reflecting surfaces allows more degrees of freedom for the design. Also, controllable electronic devices based on MEMS or PIN diodes can be integrated in the elements of the sub-reflectarray, in order to provide reconfiguration of the beam [18] [26].…”

Section: Reflectarrays In Dual Reflector Configurationsmentioning

confidence: 99%

New advances on multi-frequency and multi-beam reflectarrays with application to satellite antennas in Ka-band

Nido¹,

Maria²

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Current high throughput satellites (HTS) in Ka-band are required to provide multiple spot beam coverage based on frequency and polarization reuse, both in transmission (Tx, 19.2-20.2 GHz) and reception (Rx, 29-30 GHz). A four colour scheme with two frequencies and two polarizations is normally used, in which adjacent spots must be generated in a different frequency and/or polarization. The design of multi-beam antennas for Ka-band HTS systems must cope with some challenging requirements: generation of a large number of beams (normally between 50 and 100), very small separation between adjacent spots (a typical value is 0.56º), low spillover, etc. To xiv

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A Low-Mutual Coupling Dual-Band Dual-Reflectarray Antenna With the Potentiality of Arbitrary Polarizations

Cited by 31 publications

References 10 publications

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Gain enhancement for low cost planar reflectarray antenna using hybrid elements

New advances on multi-frequency and multi-beam reflectarrays with application to satellite antennas in Ka-band

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