New chip changes the radar chip track
Recently, Xinhua News Agency reported that a certain university and a research institution have joined hands to make a major breakthrough in the field of millimeter-wave radar, successfully developing a thin-film lithium niobate photonic millimeter-wave radar chip 5.
Date:
14 Mar,2025
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Recently, according to Xinhua News Agency, a university and a research institution have jointly made a major breakthrough in the field of millimeter-wave radar, successfully developing a thin-film lithium niobate photonic millimeter-wave radar chip.
This innovative achievement lays a solid foundation for future applications in cutting-edge fields such as 6G communication, intelligent driving, and precision sensing, and is expected to bring about a new transformation. On January 27, 2025, the integrated photonic millimeter-wave radar chip developed by the team was published online in the journal Nature Photonics. This achievement successfully broke through the limitations of on-chip photonic radar in frequency and bandwidth, becoming an important milestone in the development of photonic radar technology.
This chip exhibits superior performance, achieving centimeter-level high-resolution ranging, speed measurement, and inverse synthetic aperture radar imaging. It can efficiently generate millimeter-wave V-band radar signals with a center frequency of 45 GHz and a bandwidth of 10 GHz, and can complete target echo de-skewing. Crucially, the chip successfully overcomes the limitations of high-speed digital-to-analog/analog-to-digital converters in advanced processes on radar performance. Experimental results show that the integrated photonic millimeter-wave radar surpasses centimeter-level resolution in ranging, speed measurement, and imaging functions. Its range resolution is 1.5cm, velocity detection resolution is 0.067m/s, and inverse synthetic aperture radar two-dimensional imaging resolution is 1.5cm×1.06cm. Compared with traditional millimeter-wave radar systems and other on-chip radar chips, the new chip has achieved a leapfrog improvement in resolution, flexibility, and applicability.
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