Retrodirective Antenna for Inter-Satellite Data Transmission

Wei, Xiaoli; He, Liqun; Chen, Lei

doi:10.1109/access.2020.2993468

Cited by 4 publications

(4 citation statements)

References 32 publications

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“…Since there is no need for extra signal computation in their structure, RDAs perform significantly faster than smart antennas. These features make RDAs suitable pointing and tracking candidates for a lot of wireless applications including transponders [13], satellite communications [4,14,15], radiofrequency identification (RFID) [16], microwave power transmission [17][18][19], solar power satellites (SPSs) [20], etc. [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Passive 2-D Retro Directive Array Antenna with Adjustable Reflection Angle

Fallah¹,

Bahar²,

Sedighy³

2022

PIER Letters

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In this paper, a planar passive array antenna is proposed with capability of reradiating the incoming incident wave to predetermined θ and φ reflection angles (2-D). This purpose is achieved by differentiating array elements' phases with the help of inter-connecting transmission lines. Incident and reradiated signal paths are isolated through two orthogonal polarizations used in the array structure. The idea is realized with a 2 × 2, microstrip, dual linearly polarized antenna array in 2 GHz operating frequency on the Ro5880 substrate with 1.2 mm height. Nonlinear nature of the theory behind this idea leads to some limitations in choosing the angles of incident and reflected signals which is thoroughly investigated.

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Section: Introductionmentioning

confidence: 99%

Passive 2-D Retro Directive Array Antenna with Adjustable Reflection Angle

Fallah¹,

Bahar²,

Sedighy³

2022

PIER Letters

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“…This phenomenon not only affects the resolution and pointing accuracy of payloads such as cameras but also affects the attitude control of satellites [6]. The spaceborne data transmission antenna plays an important role in spacecraft data relay and intersatellite link tasks, but it is also the main source of low-frequency microvibration [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Experimental Study on Dynamic Behavior of Stepper-Actuated Dual-Axis Data Transmission Antenna

Zheng

Cheng

et al. 2021

International Journal of Aerospace Engineering

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The satellite-borne data transmission antenna is the main disturbing source of low-frequency microvibration of spacecraft, which immensely affects the image quality of remote sensing satellite. In this paper, the dynamic characteristics of flexible load driven by stepping motor on flexible boundary are studied. The dynamic equation of the stepping motor driven by current subdivision is simplified by linearization method. The dynamic model of flexible load driven by stepping motors on flexible boundary is established by using the Dynamic Substructure Method, and the analytical expression of microvibration of the data transmission antenna is given. The coupling relationship between the stepping motors and the flexible structure is analyzed by modal coordinate transformation. The microvibration model is verified by simulation and experiment, and the main causes and coupling factors of microvibration are explained. The results show that the model can accurately predict the microvibration of the satellite antenna and can be applied to the microvibration prediction in orbit. The reasonable selection of the working velocity of the stepping motors can effectively reduce the microvibration, which provides the basis for the design of the antenna control system.

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“…However, the active components increase the cost and complexity of the proposed tag. Similarly, an active antenna is proposed in [7] for inter-satellite data transmission. On the other hand, some passive tags rely on arrays in phase conjugate configuration (also known as Van-Atta arrays [8]) to increase the backscattered signal strength by reflecting the signal predominately in the direction of incidence.…”

Section: Introductionmentioning

confidence: 99%