A Novel Low-Cost Frequency Diverse Array With Mirrored Two-Wave Mixing

IEEE Microwave and Wireless Technology Letters(2023)

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摘要
Frequency diverse array (FDA) has been considered as a potential solution to improve radar performance, such as interference suppression and target detection. In this letter, we propose a low-cost implementation of FDA based on two-wave mixing technique. In this method, two linear frequency modulated continuous wave signals are propagating against each other, and their frequency differences caused by propagation delays are converted to a frequency offset in FDA through periodically mixing operation. The two-wave mixing-based FDA automatically creates a desired frequency distribution and phase correlation between the antennas and provides additional phase controlling capability. We also propose a mirrored two-wave mixing FDA, in which the waveform peak can be controlled to only propagate in desired directions.
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关键词
Frequency diverse array (FDA),phase shifters,phased array
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