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Dive into the research topics where Jeongsik Yang is active.

Publication


Featured researches published by Jeongsik Yang.


IEEE Journal of Solid-state Circuits | 2009

A Low-Power CMOS SAW-Less Quad Band WCDMA/HSPA/HSPA+/1X/EGPRS Transmitter

Marco Cassia; Aristotele Hadjichristos; Hong Sun Kim; Jin-Su Ko; Jeongsik Yang; Sang-Oh Lee; Gurkanwal Singh Sahota

In this paper we present a multi-band CMOS transmitter for cellular applications. The transmitter covers a wide range of frequency bands and it is designed to minimize power consumption in order to increase handset talk-time. The output noise performance allows the removal of SAW for certain W-CDMA and CDMA bands; moreover it can be configured to be used for SAW-less GSM/EDGE operations while maintaining an excellent linearity.


european solid-state circuits conference | 2008

A low power CMOS SAW-less quad band WCDMA/HSPA/1X/EGPRS transmitter

Marco Cassia; Aristotele Hadjichristos; Hong Sun Kim; Jin-Su Ko; Jeongsik Yang; Sang-Oh Lee; Kamal Sahota

In this paper we present a multi-band CMOS transmitter for cellular applications. The transmitter covers a wide range of frequency bands and it is designed to minimize power consumption in order to increase hand-set talk-time. The output noise performance allows the removal of SAW for certain W-CDMA and CDMA bands; moreover it can be configured to be used for SAW-less GSM/EDGE operations while maintaining an excellent linearity.


Archive | 2009

Auxiliary varactor for temperature compensation

Mazhareddin Taghivand; Conor Donovan; Jeongsik Yang; Sang-Oh Lee


Archive | 2007

Fast-switching low-noise charge pump

Shen Wang; Sang-Oh Lee; Jeongsik Yang


Archive | 2009

Vco capacitor bank trimming and calibration

Mazhareddin Taghivand; Jeongsik Yang; Sang-Oh Lee


Archive | 2011

System for i-q phase mismatch detection and correction

Jeongsik Yang; Chan Hong Park; Sang-Oh Lee


Archive | 2011

Low power wideband lo using tuned injection locked oscillator

Mazhareddin Taghivand; Jeongsik Yang


Archive | 2010

Vco tuning with temperature compensation

Jeongsik Yang; Jin Wook Kim; Sang-Oh Lee


Archive | 2015

LOW NOISE PHASE LOCKED LOOPS

Shen Wang; Jeongsik Yang; Thinh Cat Nguyen; Ara Bicakci; Anup Savla


Archive | 2011

Voltage controlled oscillator temperature compensation using auxiliary varactor

Mazhareddin Taghivand; Conor Donovan; Jeongsik Yang; Sang-Oh Lee

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