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http://dx.doi.org/10.5515/KJKIEES.2009.20.9.967

Implementation of High Stable Phase-Locked Oscillator for X-Band Satellite Communication  

Lim, Jin-Won (Department of Information & Communication, Kyungnam University)
Joung, In-Ki (GENOHCO Inc.)
Rhee, Young-Chul (Department of Information & Communication, Kyungnam University)
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Abstract
In this paper, X-band satellite communication oscillator of double phase locked is implemented by constructing a couple of phased-locked loop, and then we have analyzed the phase noise of designed PLL-DRO. The designed phase-locked oscillator is consist of series feedback DRO, frequency divider, phase detector, loop filter and programmable PLL-IC. By dividing oscillation frequency of 12.6 GHz into two frequencies, it exhibits output power of 15.32 dBm at 6.3 GHz. Phase noises of implemented oscillator are -81 dBc/Hz@100Hz, -100.86 dBc/Hz@1 kHz, -111.12 dBc/Hz@10 kHz, -116 dBc/Hz@100 kHz and -140.49 dBc/Hz@1 MHz respectively. These indicate excellent stable operation of oscillator and very good phase noise characteristics.
Keywords
PL-DRO; Phase Noise;
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