Double-Layer Cable-Net Structures for Deployable Umbrella Reflectors

Tang, Yaqiong; Shi, Zhiyang; Li, Tuanjie; Wang, Zuowei

doi:10.1061/(asce)as.1943-5525.0001072

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…According to the existing studies, the surface accuracy of these antennas usually stays at the millimeter level [ 1 , 11 , 12 , 13 , 14 , 15 , 16 ], corresponding to the L-S operating frequency band. If adopting various delicate structures (such as an umbrella-type structure [ 17 , 18 , 19 , 20 ]) or sophisticated adjustment approaches [ 11 , 12 , 13 , 16 , 21 , 22 , 23 , 24 ], small-aperture CNAs are capable of achieving an accuracy of 0.3–1 mm, with which its maximum operating frequency can reach the Ka band. However, the requirement for antenna operating frequency has been increasing invariably, which has far exceeded the Ka band, and even increased to the terahertz band.…”

Section: Introductionmentioning

confidence: 99%

Configuration Investigation, Structure Design and Deployment Dynamics of Rigid-Reflector Spaceborne Antenna with Deviation-Angle Panel

Tan,

Liu,

Duan

et al. 2024

Sensors

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Rigid-reflector spaceborne antennas (RRSAs) are well-suited for high-frequency application scenarios due to their high surface accuracy. However, the low stowing efficiency of RRSAs limits the aperture diameters and further deteriorates the electromagnetic (EM) performances in terms of gain, resolution and sensitivity. After conducting systematic feature analysis with respect to several typical RRSAs, we propose a novel type of RRSA to solve the aforementioned problems. Inspired by the pose adjustment process for a higher stowing efficiency of traditional RRSAs, we also propose a new segmentation scheme of a reflective surface consisting of a deviation-angle panel that facilitates a higher stowing efficiency. Based on this scheme, its corresponding folded configuration is implemented by combining Euler’s rotation theorem and the idea of parameter identification. In addition, we also compare the stowing efficiency of different schemes to verify the high stowing efficiency of the configuration. Finally, we perform mechanism/structure design and deployment dynamics to demonstrate that the antenna can be successfully deployed and exhibits excellent deployment quality. The results suggest that the proposed antenna possesses higher stowing efficiency than that of the same kind, with a stable deployment and interference-free process.

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Section: Introductionmentioning

confidence: 99%

Configuration Investigation, Structure Design and Deployment Dynamics of Rigid-Reflector Spaceborne Antenna with Deviation-Angle Panel

Tan,

Liu,

Duan

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

“…By tensioning either the load-bearing cables (lower radial cables) or stabilizing cables (upper radial cables), or both, the cables and rods become rigid, and the whole structure takes on a stable shape and bearing capacity to resist external loads. Unlike traditional steel structures [ 2 , 3 ], double-layer cable nets [ 4 ], truss strings [ 5 ] or cable-strut structures [ 6 ], the upper stabilizing cables and lower load-bearing cables cut across each other near the midpoint of the projected length of some pieces. In this case, several middle rods bear compressive forces to maintain a sufficient separation distance between the upper and lower radial cables, while others bear tensile forces to connect the upper and lower radial cables as a whole.…”

Section: Introductionmentioning

confidence: 99%