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Design of X-band Frequency Synthesizer Based on PLL

Tao Yang

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Abstract

A design method of the X-band frequency source is introduced in this paper.The synthesizer contains two single-loop digital PLL frequency synthesizers,and then mixes them to achieve the X-band frequency source,which has lots of characteristics,such as low phase noise,low suprs,and high frequency stability.The test results show that: the phase noise of the frequency source is:-94.3 dBc@1 kHz,-99 dBc@10 kHz;the power level of the output greater than 13 dBm,a good performance frequency source is realized.

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What this paper is about

A design method of the X-band frequency source is introduced in this paper.The synthesizer contains two single-loop digital PLL frequency synthesizers,and then mixes them to achieve the X-band frequency source,which has lots of characteristics,such as low phase noise,low suprs,and high frequency stability.The test results show that: the phase noise of the frequency source is:-94.3 dBc@1 kHz,-99 dBc@10 kHz;the power level of the output greater than 13 dBm,a good performance frequency source is realized.

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Available abstract

A design method of the X-band frequency source is introduced in this paper.The synthesizer contains two single-loop digital PLL frequency synthesizers,and then mixes them to achieve the X-band frequency source,which has lots of characteristics,such as low phase noise,low suprs,and high frequency stability.The test results show that: the phase noise of the frequency source is:-94.3 dBc@1 kHz,-99 dBc@10 kHz;the power level of the output greater than 13 dBm,a good performance frequency source is realized.

Key concepts: dBc, Frequency synthesizer, Phase-locked loop, Phase noise, Direct digital synthesizer, PLL multibit, Frequency multiplier, Frequency band

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