A Ka-Band Reflectarray Antenna Integrated With Solar Cells

An, Wenxing; Xu, Shenheng; Yang, Fan; Gao, Jianfeng

doi:10.1109/tap.2014.2354424

Cited by 55 publications

(18 citation statements)

References 31 publications

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“…In order to broaden the bandwidth of the reflectarray elements, several techniques have been applied to design the elements. Two typical representatives include the multilayer elements and the multiresonance elements . For the former, although the bandwidth of the element can be enhanced, the manufacturing cost and alignment errors are also increased.…”

Section: Introductionmentioning

confidence: 99%

“…Two typical representatives include the multilayer elements and the multiresonance elements. [13][14][15][16][17][18][19][20][21] For the former, although the bandwidth of the element can be enhanced, the manufacturing cost and alignment errors are also increased. The same performance can be also obtained by using the multiresonance elements.…”

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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“…To accommodate the versatile wireless communications, the reconfigurable RA antennas were emerged to achieve various radiation performances by electronically or mechanically controlling phase responses of individual elements of the RA [14]- [17]. In [18], [19], RA antennas integrated with solar cells were reported to reduce the occupied area for different space and civilian applications [20]- [22]. The integrated RA antenna not only could have good radiation performance but also owe significant solar energy efficiency [18].…”

Section: Introductionmentioning

confidence: 99%

“…In [18], [19], RA antennas integrated with solar cells were reported to reduce the occupied area for different space and civilian applications [20]- [22]. The integrated RA antenna not only could have good radiation performance but also owe significant solar energy efficiency [18]. In [23], the authors utilized the perforated substrate to construct a broadband RA antenna.…”

Section: Introductionmentioning

confidence: 99%

A Reflectarray Antenna Designed With Gain Filtering and Low-RCS Properties

Mei

Zhang

Cai

et al. 2019

IEEE Trans. Antennas Propagat.

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This paper presents a reflectarray (RA) antenna operating at X-band with gain filtering and low radar cross section (RCS) properties. The unit cell (UC) for the proposed RA antenna design combines a band-notched absorber unit and a dielectric lens unit together, where the dielectric lens unit serving as a phase shift is coated on the absorber unit to achieve co-design. Importantly, it is required that the UCs should still maintain the high notch-band-edge selectivity property that the band-notched absorber originally has when the profile of the dielectric lens unit is varied to cover a full phase-cycle (2π) for the proposed RA antenna design. For demonstration, an absorber is presented with a high notch-band-edge selectivity and a wide absorption bandwidth performance in vertical and horizontal polarization, respectively; a dielectric lens based on square posts is rigorously designed to be coated on the absorber seamlessly to construct the desired UC. The simulated results show that the proposed RA antenna has a bandpass-like gain filtering performance and pencil-beam radiation patterns within the notch band, which is experimentally verified by the measured results. In addition, the measured results also reveal the RCSs of the proposed RA antenna are reduced significantly compared to counterparts of the conventional RA antenna in horizontal polarization and out of the notch band in vertical polarization. Index Terms-Reflectarray (RA) antenna, absorbing media, dielectric lens, phase shift, high gain, gain filtering, low RCS.

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“…It achieved a gain of 28 dBi at 30 GHz. An et al investigated the integration between reflectarray antennas working in the Ka band and solar cells [16].…”

Section: Introductionmentioning

confidence: 99%

Single- and double-beam reflectarrays for Ka band communication

et al. 2019

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The Ka band has found applications in satellite, and radar communications. It is also expected that this band will be utilized for 5G applications. This paper presents single-and double-beam microstrip reflectarrays with single layer and compact size for Ka band communications at 28 GHz. Three different unit cells are investigated in this paper. Single-and double-beam reflectarrays are investigated. The reflectarrays are designed at 28 GHz with a physical size of 10k 9 10k. A pyramidal horn antenna is used for the feeding purpose. The focal-length-to-diameter (F/D) ratio is equal to one. Two different scenarios for single-beam reflectarrays are presented: one with a broadside direction and the other with a 10°tilt angle. The simulation results show that for the broadside single-beam scenario, it is possible to achieve a gain up to 28.5 dB, and a 1-dB gain-bandwidth up to 30.7%. On the other hand, the presented reflectarray for the single-beam design at 10°tilt angle gives a gain of about 26.4 dB, a side lobe level (SLL) of about-15.6 dB, and a 19.3% gain-bandwidth. For the double-beam reflectarray, four different designs at different angles of 5°, 10°, 15°, and 20°have been simulated and compared. Moreover, the simulation results on the double-beam reflectarray show that the double-beam design at 10°is better from the gain and SLL perspectives. Two prototypes for broadside single-beam reflectarrays have been fabricated and measured. The measurement results show a good match with the simulation results. Gain flatness is guaranteed for both the simulated and measured results over the band of interest.

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A Ka-Band Reflectarray Antenna Integrated With Solar Cells

Cited by 55 publications

References 31 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

A Reflectarray Antenna Designed With Gain Filtering and Low-RCS Properties

Single- and double-beam reflectarrays for Ka band communication

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