TRANSCEIVER USING TECHNIQUE FOR IMPROVEMENT OF PHASE NOISE AND SWITCHING OF PHASE LOCK LOOP (PLL)

Title:

TRANSCEIVER USING TECHNIQUE FOR IMPROVEMENT OF PHASE NOISE AND SWITCHING OF PHASE LOCK LOOP (PLL)

Document Type and Number:

WIPO Patent Application WO/2013/169071

Kind Code:

A1

Abstract:

A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.

Inventors:

LEE JAE SUP (KR)
KIM HONG JIN (KR)
PARK HYUNG GU (KR)
LEE KANG YOON (KR)

Application Number:

PCT/KR2013/004163

Publication Date:

November 14, 2013

Filing Date:

May 10, 2013

Export Citation:

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Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)
UNIV SUNGKYUNKWAN RES & BUS (KR)

International Classes:

H04B1/00; H03L7/08

Domestic Patent References:

WO2011077481A1

2011-06-30

Foreign References:

US20050250452A1	2005-11-10
JP2012019378A	2012-01-26
US20100255802A1	2010-10-07
US20110195675A1	2011-08-11
US20020054657A1	2002-05-09
US7242255B1	2007-07-10
US6281758B1	2001-08-28
US20040017268A1	2004-01-29
US6072371A	2000-06-06

Other References: