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IEIE Transactions on Smart Processing & Computing (IEIE SPC)

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한글제목(Korean Title) Wide Tuning-range LO Chain with a Hybrid Inductor for LTE and SAW-less GSM Transceiver
영문제목(English Title) Wide Tuning-range LO Chain with a Hybrid Inductor for LTE and SAW-less GSM Transceiver
저자(Author) Seonghan Ryu  
원문수록처(Citation) VOL 10 NO. 06 PP. 0490 ~ 0495 (2021. 12)
한글내용
(Korean Abstract)
영문내용
(English Abstract)
A low phase noise, multi-standard local oscillator (LO) chain for LTE and GSM is presented. The LO chain is composed of a dynamic divider and a CMOS VCO with a hybrid inductor using both bondwire and a planar spiral inductor in the same area. This approach improves both tuning range and phase noise characteristics without additional area loss. Based on this concept, the LO chain with a hybrid inductor VCO is implemented in a 65nm CMOS process. The measured performance satisfies wide tunability and most stringent GSM transmitter phase noise specification, which proves that the LO chain can be used for LTE and SAW-less GSM transceiver.
키워드(Keyword) CMOS   Phase noise   Wide tuning range   Hybrid inductor  
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