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Gkini19

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  1. Hi All, I was looking at several papers of radar transceiver that operates at 77GHz to 88 GHz focusing on the VCO and Chirp PLL architecture. So if we want the output of the VCO to be 77GHz to 88 GHz, all the papers for radar transceivers use VCO with a multiplier to generate frequencies in the range of 77GHz to 88 GHz. (Say 20 * 4 or 38*2 ) What would be the technical reason to use multipliers? why can't we just have an architecture of the VCO that operates at 77 GHz? Please let me know
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