Multiport Beamforming System Based on Reconfigurable Waveguide Phased Antenna Array for Satellite Communication Applications

Wei, Yifang; Arnold, Christian

doi:10.1109/access.2023.3261671

Cited by 3 publications

References 23 publications

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A reconfigurable multifunctional polarization converter based on active metasurface

Zhao,

Ding,

Zhou

et al. 2023

Journal of Applied Physics

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In this paper, we report a reconfigurable multifunctional polarization converter (RMPC) based on positive-intrinsic-negative (PIN) diodes, enabling to achieve different functions in different bands and states. The simulations and experiments show that when the PIN diode is off, it acts as a broadband linear polarization (LP) converter at 9.12–15.93 GHz. Simultaneously, when the PIN diode is on, the LP incident wave is converted into a left-handed circular polarization wave at 8.69–11.41 GHz and a cross-polarization wave at 13.40–14.97 GHz, whereas full reflection is obtained at 12.05–12.54 GHz. The RMPC consists of two dielectric plates and three layers of metal copper plates. Finally, a sample was fabricated and measured, the simulated and experimental results were in good agreement. Compared with other works, the RMPC has more working states and wider operating frequency bands, which has an application potential in the field of radar stealth and satellite communication.

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A reconfigurable multifunctional polarization converter based on active metasurface

Zhao,

Ding,

Zhou

et al. 2023

Journal of Applied Physics

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Development and Research of Phased Array Antenna Control Unit for Educational Purposes

Kozhakhmetova

2024

2024 IEEE 4th International Conference on Smart Information Systems and Technologies (SIST)

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Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction

Yao,

Zhao,

Bai

et al. 2023

Sensors

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Direction of arrival (DOA) estimation is an effective method for detecting various active interference signals during the satellite navigation process. It can be utilized for both interference detection and anti-interference applications. This paper proposes a DOA estimation algorithm for satellite interference sources based on frequency domain covariance matrix reconstruction (FDCMR) to address various types of active interference that may occur in the satellite navigation positioning process. This algorithm can estimate the DOA of coherent signals from multiple frequency points under low signal-to-noise ratio (SNR) conditions. The signals received from the array are transformed from the time domain to the frequency domain using a fast Fourier transform (FFT). The data corresponding to the frequency point of the target signal is extracted from the signal in the frequency domain. The frequency domain covariance matrix of the received array signals is reconstructed by utilizing its covariance matrix property. The spatial spectrum search method is used for the final DOA estimation. Simulation experiments have shown that the proposed algorithm performs well in the DOA estimation under low SNR conditions and also resolves coherency. Moreover, the algorithm’s effectiveness is verified through comparison with three other algorithms. Finally, the algorithm’s applicability is validated through simulations of various interference scenarios.

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Multiport Beamforming System Based on Reconfigurable Waveguide Phased Antenna Array for Satellite Communication Applications

Cited by 3 publications

References 23 publications

A reconfigurable multifunctional polarization converter based on active metasurface

A reconfigurable multifunctional polarization converter based on active metasurface

Development and Research of Phased Array Antenna Control Unit for Educational Purposes

Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction

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