Low converter possessing high symmetricity and linearity
Title：
Low converter possessing high symmetricity and linearity
Application Number：
 200310101664
Application Date：
 2003/10/24
Announcement Date：
 2004/10/20
Pub. Date：
 2007/03/07
Publication Number：
 1538624
Announcement Number：
 1303764
Grant Date：
 2007-3-7
Granted Pub. Date：
 2007-3-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H04B 1/16H03D 7/14
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Shi Bingxue, Chi Baoyong, Liao Qing
Key Words：
 high symmetricity, high linearity, Low converter
Abstract：
 Down converter possesses duplex balance structure composed of single ended input stage, difference output stage and connected frequency mixing unit. General structure of open drain electrode is adopted in said difference output stage. Class ab single ended input structure in on chip bias is adopted in the single ended input stage. The invention through introduced on chip bias loop improve symmetry and linearity of mixer greatly. Input impedance matching is realized through on chip, and output is in mode of open drain electrode, and having high conversion gain, high linearity and low noise factor at low consumption of voltage and current.
Claim：
Priority：
PCT：
LegalStatus：

Recommend this patent:
1 2 3 4 5
Average ( 0 votes):
                                                                          Recommended Patents>>

Relevancy information



Other Patents of Same Inventor

Direct current level converter
Virtual earth circuit in current detector of microcomputer multiphase switch power source
Multiple phase switch power source using active and slave current uniform microprocessor
Circuit for eliminating signal amplitude mismatch on orthogonal signal path
Integrated radio frequency phase locked loop type frequency synthesizer
Low-Volage high-linearity radio-frequency amplifier for on-chip impedance match
Reference current source of low-temp. coefficient and low power-supply-voltage coefficient
Low dissipation radio transceiver analog front-end assembly for endoscope capsule system
Image inhibiting filtering device capable of compensating LC network loss



News & Events More>>

Last Update  
2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







Copyright 2008-2015 All Rights Reserved Patent License of China.      Designed by Easygo