A Single-Layered Broadband Reflectarray Employing 0.15-Wavelength Elements

Guo, Meijin; Guo, Lu; Feng, Wenjie; Chen, Xiaodong

doi:10.1109/lawp.2022.3210071

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…The unit cell [120] is developed utilizing two concentric octagonal-shaped rings to produce wideband, and a high phase range is achieved by using the variable size approach. The unit cell of [121] consists of a concave arm and a ring patch, both of which have a wavelength of 0.15.…”

Section: B Variable Size Techniquementioning

confidence: 99%

Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges

Joy,

Palaniswamy,

Kumar

et al. 2024

IEEE Access

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As communication technology advances, high-gain antennas are being investigated for a variety of long-distance applications. One such high gain antenna is reflectarray, it has combined advantageous characteristics of a reflector and phased array antennas. However, to design the reflectarray antenna its phase range, bandwidth, gain, cross polarization and the side lobe levels must be in optimal range to meet the requirements for distant applications. In this article, we have reviewed various research works of reflectarray antenna and highlighted the techniques to develop an efficient high gain reflectarry antenna. Recently, for high gain applications, as per end user requirement, there is a need to vary the frequency and radiation characteristics in a controlled manner. This can be achieved by using reconfigurable reflectarray antennas. In this article, reconfigurable mechanisms and active elements used for reconfiguration is reviewed in detail. In the end of this survey, some of the works on reflectarray antenna which were published by the research society are compared, summarizing the important parameters such as operating frequency, phase range, gain bandwidth, peak gain, cross polarization levels, and side lobes.

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Section: B Variable Size Techniquementioning

confidence: 99%

Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges

Joy,

Palaniswamy,

Kumar

et al. 2024

IEEE Access

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“…The first group is to improve radiation performance by changing the reflectors. [19][20][21][22][23][24][25][26][27][28][29][30] The reflectarrays composed of a large number of unit cell are used as a substitute of the conventional reflector based on the approach of propagation phase shifting, [20][21][22][23][24][25][26] and they have planar structure and light weight when compared with the metal reflectors. Moreover, different structures of reflectors are also developed to obtain a low profile, such as quasi-planar reflectors, 27 shaped reflectors 28 and folded reflectors.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, the existing literatures about the reflector antenna can be classified into two main groups. The first group is to improve radiation performance by changing the reflectors 19–30 . The reflectarrays composed of a large number of unit cell are used as a substitute of the conventional reflector based on the approach of propagation phase shifting, 20–26 and they have planar structure and light weight when compared with the metal reflectors.…”

Section: Introductionmentioning

confidence: 99%

A waveguide‐fed reflector antenna with high gain and multi‐beam capability demonstrated at 220 GHz

Chen,

Raza

2024

Micro & Optical Tech Letters

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A waveguide‐fed reflector antenna with high gain and multi‐beam capability is introduced and demonstrated at 220 GHz. Terahertz waves have a very small wavelength, which poses great challenges to the fabrication of terahertz antenna arrays and the connection with the T/R components. In this paper, a horn array with an element spacing less than one wavelength for terahertz frequency is presented and demonstrated, and its excitations are fan‐out using curved waveguides. The horn array is used as a feeding source of an offset parabolic reflector to achieve high‐gain and multi‐beam performance. The reflector antenna achieves four beam positions with θ = −0.7°, −0.2°, 0.2°, and 0.7°, and each beam obtains the gain of about 45 dBi. The experimental reflector antenna is fabricated and tested. Good experimental results further confirm the feasibility of the antenna and the potential application in Terahertz systems.

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Broadband reflectarray antenna using circular ring additional helical microstrip lines

Zhang,

Guo,

Huang

et al. 2025

Optik

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A Single-Layered Broadband Reflectarray Employing 0.15-Wavelength Elements

Cited by 8 publications

References 24 publications

Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges

Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges

A waveguide‐fed reflector antenna with high gain and multi‐beam capability demonstrated at 220 GHz

Broadband reflectarray antenna using circular ring additional helical microstrip lines

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