A six-band reflectarray antenna

Oh, Seongwon; Lee, Jung‐Kyu; Huang, John; Chang, Kai

doi:10.1109/aps.2009.5171592

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…The specific technique to achieve multi-band performance depends on the number of frequency bands and their frequency ratios. Several multiband reflectarray prototypes, without beam scanning capabilities, have been realized, combining up to six different frequency bands, mostly in the range from C-band to Ka-band [18]. Current research in this specific area is focusing on designing unit cells that minimize the mutual coupling effects between the elements at all frequency bands.…”

Section: Multi-band Operationsmentioning

confidence: 99%

Prospective Applications of Microwave Reflectarray Antennas to the Design and Fabrication of Future Radio Telescopes

Olmi

2023

Microwave Technologies - Recent Advances and New Trends and Applications

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The size, cost, and complexity of radio telescopes and their instrumentation have grown enormously during the last few decades. The vast majority of new technology employed by radio astronomy has been developed for the industrial market, and the technology in use by today’s best radio telescopes is 20 to 30 years old. In particular, the antenna technology has changed very slowly, and thus, an important question is whether novel antenna technologies might bring down the cost of collecting area, since efficiency and accuracy compromises become much more costly for large radio telescopes. In this chapter, we discuss the strengths and weaknesses of specific new technologies, and in particular reflectarrays, which have been developed mainly for remote sensing and satellite communications, that might lead to a great leap forward in the design and fabrication of antennas for radio astronomy.

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Section: Multi-band Operationsmentioning

confidence: 99%

Prospective Applications of Microwave Reflectarray Antennas to the Design and Fabrication of Future Radio Telescopes

Olmi

2023

Microwave Technologies - Recent Advances and New Trends and Applications

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“…[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. For example, a novel element composed of I-shaped dipole and circular ring was presented in Qu et al, 4 which operated at two closely separated bands with same polarization.…”

Section: Introductionmentioning

confidence: 99%

“…A dual-layer element consists of cross dipoles on the higher layer for X-band and square patches on the lower layer for Ka-band in Oh. 11 It was noted that the period of the cross dipoles was twice the square patches, which operated at different frequency bands. Using an FSS as band separator at the middle of double-layer elements is the third case.…”

Section: Introductionmentioning

confidence: 99%

“…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 . 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%

“…The second scenario is just the opposite case of the one. A dual‐layer element consists of cross dipoles on the higher layer for X‐band and square patches on the lower layer for Ka‐band in Oh 11 . It was noted that the period of the cross dipoles was twice the square patches, which operated at different frequency bands.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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.

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Broadband and Multiband Reflectarray Antennas

2018

Reflectarray Antennas

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A six-band reflectarray antenna

Cited by 8 publications

References 4 publications

Prospective Applications of Microwave Reflectarray Antennas to the Design and Fabrication of Future Radio Telescopes

Prospective Applications of Microwave Reflectarray Antennas to the Design and Fabrication of Future Radio Telescopes

Dual polarized reflectarray antenna for operation in X and Ku bands

Broadband and Multiband Reflectarray Antennas

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