K/Ka Dual-Band Reflectarray Subreflector for Ring-Focus Reflector Antenna

Qu, Shi‐Wei; Lu, Senlin; Ma, Chao; Yang, Shiwen

doi:10.1109/lawp.2019.2923288

Cited by 23 publications

(14 citation statements)

References 12 publications

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“…On one hand, various resonant elements are printed on a single-layer substrate. [3][4][5][6][7][8][9] On the other hand, a stacked configuration is used where each layer works at different frequencies. [10][11][12][13][14] For the first case, the mutual coupling of different resonant elements affects the antenna performance due to the limited space, which increases the complexity of the design.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual polarized reflectarray antenna for operation in X and Ku bands

Cai

Cao

et al. 2022

Micro & Optical Tech Letters

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A stacked structure element consists of an arc phoenix patch and an I‐shaped slot is proposed for designing dual‐band reflectarray antenna. The arc phoenix element operates at Ku band, which above the I‐shaped slot element operating at X band. The advantages of this configuration are that the smaller size phoenix element has less shielding of the reradiation energy, and the property of the bottom substrate has no effect on up‐layer due to the I‐shaped element severs as ground plane. Furthermore, two orthogonal polarizations are produced by the radiation characteristics of the slot and the metal strip to eliminate coupling. Based on the element, a reflectarray antenna with a dimension of 140 mm generating two focused beams at orthogonal plane has been simulated, fabricated, and measured. The simulated and measured results are in good agreement in X and Ku bands.

show abstract

Section: Introductionmentioning

confidence: 99%

“…There are basically two methods of designing dual‐band reflectarray in recent years. On one hand, various resonant elements are printed on a single‐layer substrate 3–9 . On the other hand, a stacked configuration is used where each layer works at different frequencies 10–14 .…”

Section: Introductionmentioning

confidence: 99%

Dual polarized reflectarray antenna for operation in X and Ku bands

Cai

Cao

et al. 2022

Micro & Optical Tech Letters

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“…K ‐band antennas are prevailing in the industry and academia. In Reference , Qu proposed a K/Ka band reflector antenna. Ferrando‐Rocher proposed a K/Ka band antenna array based on gap waveguide technology .…”

Section: Introductionmentioning

confidence: 99%

A metallic 3D printed K ‐band quasi‐pyramidal‐horn antenna array

Wang

Zhang

2020

Int J RF Microw Comput Aided Eng

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A K‐band (18‐27 GHz) antenna array is presented in this article. By deposing the quasi‐pyramidal‐horn upon a print circuit board (PCB), a traveling‐wave quasi‐pyramidal‐horn antenna is formed. Parasitic rings are introduced to decrease the quality factor for an extended bandwidth. The antenna element demonstrates impedance bandwidth 18.6 to 23.3 GHz. The gain is 10.3 dBi at 20.4 GHz with a stable radiation pattern. The impedance bandwidth of a 2 × 2 array is 18.3 to 22.7 GHz, with a maximum gain of 15.2 dBi at 20.4 GHz. The simulated and measured radiation patterns on E‐ and H‐planes at 20.4 GHz agree well. Taking advantage of the 3D printing technology, the quasi‐pyramidal horn is fabricated by selective laser melting using aluminum alloy for time‐saving and process simplicity. The proposed design highlights the hybrid usage of PCB and metallic 3D printing technology in fabricating microwave devices. It is a capable candidate for wireless communication.

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“…For example, a Gregorian double reflector antenna with an off‐focal feed array produces multiple beams at 12.7 GHz . A dual‐focal double‐reflector multibeam antenna is shaped to control the feed spillover for an improved aperture efficiency . The abovementioned articles adopt effective solutions when facing various problems, such as energy overflow control, aperture efficiency enhancement, and section size reduction.…”

Section: Introductionmentioning

confidence: 99%

“…11 A dual-focal double-reflector multibeam antenna is shaped to control the feed spillover for an improved aperture efficiency. [12][13][14] The abovementioned articles adopt effective solutions when facing various problems, such as energy overflow control, aperture efficiency enhancement, and section size reduction. This article aims to reduce the blockage of the feed without changing its position.…”

Section: Introductionmentioning

confidence: 99%

A K / Ka ‐band dielectric and metallic 3D printed aperture shared multibeam parabolic reflector antenna for satellite communication

Zhu

Zhang

Huang

2020

Int J RF Microw Comput Aided Eng

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A K/Ka‐band (22‐33 GHz) high‐gain aperture shared multibeam parabolic reflector antenna is proposed. It performs a two‐dimensional beam scanning from a shared single parabolic reflector by introducing off‐focal feeds. The feed array is placed on and off the focal of the parabolic reflector. Traditionally, the feed blockage has a great impact on the performance of the antenna, which reduces the gain and increases the sidelobe level. The purpose of this paper is to suppress the negative effects of feed blockage by using hybrid material processing method. Both dielectric and metallic 3D printing technologies are used for antenna fabrication. The parabolic reflector antenna is printed by selective laser melting using aluminum alloy. The feed array and the supporting structures are printed by stereolithography apparatus in resin to control the blockage. The method helps to suppress the sidelobe level from −10 to −15 dB and to enhance gain by up to 2.3 dBi. The reflection coefficient is less than −10 dB, while the coupling coefficient between the ports is less than −20 dB over the entire designed band. At 31.5 GHz, the simulated maximum gain of the antenna are 30.7, 29.1, and 29.7 dBi, when different port separately excites. Multiple beams at ±15° and 0° are observed on both E‐ and H‐planes. Besides, it also verifies the possibility to use dielectric and metallic 3D printing technologies in hybrid for microwave device fabrication.

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K/Ka Dual-Band Reflectarray Subreflector for Ring-Focus Reflector Antenna

Cited by 23 publications

References 12 publications

Dual polarized reflectarray antenna for operation in X and Ku bands

Dual polarized reflectarray antenna for operation in X and Ku bands

A metallic 3D printed K ‐band quasi‐pyramidal‐horn antenna array

A K / Ka ‐band dielectric and metallic 3D printed aperture shared multibeam parabolic reflector antenna for satellite communication

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