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- W2805772785 abstract "The results of the development of a 6-channel microwave photonic beamforming system (BFS) for phased array antenna in receiving mode are presented. BFS incorporate DWDM technology based components of analogue fiber-optic transmission links with external modulation in RF range 0.1-18 GHz and specially manufactured chirped fiber Bragg grating. A number of BFS transmitters have six optical carriers separated with 100 GHz step (ITU grid, DWDM standard in C-band). The beamforming is realized by introducing inter-channel time delays when microwave modulated optical carriers interact with chirped fiber Bragg grating (СFBG) in reflection mode, throughout the total operating spectral range of 6-channel BFS (6x100 GHz). The used СFBG has 2 cm length. The results of measuring the S-parameters of BFS 6 channels are given, which enable to synthesize the far-field pattern of the phased array antenna with photonic BFS under investigation. Far-field patterns of four channel linear phased antenna array integrated with photonic beamformer model have been measured and compared with calculated patterns taking into account amplitude and phase errors arising in beamformer channels." @default.
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- W2805772785 date "2018-06-06" @default.
- W2805772785 modified "2023-09-23" @default.
- W2805772785 title "Microwave photonic beamforming system with broadband chirped fiber Bragg grating" @default.
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- W2805772785 doi "https://doi.org/10.1117/12.2318086" @default.
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