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| Design and Verification of Broadband Low Phase Noise Local Oscillator Based on DDS |
| ZHOU Xiaozhou, DENG Chun, CHEN Yi, LI Xiaoping, LI Tianyi |
| Shanghai Radio Equipment Research Institute, Shanghai 200090，China |
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| Guide |
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Abstract According to the design requirements of the product for the local oscillator source, several schemes are elaborated and analyzed. A DDS-based frequency multiplication phase-locking scheme is selected to design. The design of frequency band, accuracy, phase noise and spurs is introduced in detail. The achievable indicators are calculated and simulated. Finally, the effectiveness of the design is verified by product testing.
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Received: 30 August 2018
Published: 15 January 2019
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2019, Vol. 2 
