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TW241412B - Apparatus and method for quadrature signal generation - Google Patents

Apparatus and method for quadrature signal generation

Info

Publication number
TW241412B
TW241412B TW83108412A TW83108412A TW241412B TW 241412 B TW241412 B TW 241412B TW 83108412 A TW83108412 A TW 83108412A TW 83108412 A TW83108412 A TW 83108412A TW 241412 B TW241412 B TW 241412B
Authority
TW
Taiwan
Prior art keywords
resistor
capacitor
middle point
input port
circuit
Prior art date
Application number
TW83108412A
Other languages
Chinese (zh)
Inventor
Guang-Jong Taur
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW83108412A priority Critical patent/TW241412B/en
Application granted granted Critical
Publication of TW241412B publication Critical patent/TW241412B/en

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  • Networks Using Active Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

A phase shifting circuit, which can generate multiple output signals among which there are constant phase difference, includes: 1. one first input port to receive one input signal with reference phase; 2. one second input port to receive one input signal with 180 degree phase difference to reference phase; 3. one first circuit connected with the first input port and the second input port, which includes one first set of resistor-capacitor(RC) connected in series with the second set of resistor-capacitor(RC) through one middle point, in which the second set of resistor-capacitor symmetrizes to the first set of resistor-capacitor by the middle point; 4. one second circuit connected with the first input port and the second input port, and parallel with the first circuit, in which the second circuit in cludes one first set of resistor connected in series with the second set of resistor through the second middle point, in which the second set of resistor symmetrizes to the first set of resistor by the second middle point; 5. at least two output ports connected with the first set of resistor-capacitor and the second set of resistor-capacitor separately, in which there is constant phase difference between output ports; 6. the first middle point connected with the second middle point to generate one virtual ground level which has a definite voltage relationship with the input signal.
TW83108412A 1994-09-09 1994-09-09 Apparatus and method for quadrature signal generation TW241412B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW83108412A TW241412B (en) 1994-09-09 1994-09-09 Apparatus and method for quadrature signal generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW83108412A TW241412B (en) 1994-09-09 1994-09-09 Apparatus and method for quadrature signal generation

Publications (1)

Publication Number Publication Date
TW241412B true TW241412B (en) 1995-02-21

Family

ID=51400931

Family Applications (1)

Application Number Title Priority Date Filing Date
TW83108412A TW241412B (en) 1994-09-09 1994-09-09 Apparatus and method for quadrature signal generation

Country Status (1)

Country Link
TW (1) TW241412B (en)

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