WO2001035538A3 - Low spurious homodyne receiver - Google Patents

Low spurious homodyne receiver Download PDF

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Publication number
WO2001035538A3
WO2001035538A3 PCT/IL2000/000723 IL0000723W WO0135538A3 WO 2001035538 A3 WO2001035538 A3 WO 2001035538A3 IL 0000723 W IL0000723 W IL 0000723W WO 0135538 A3 WO0135538 A3 WO 0135538A3
Authority
WO
WIPO (PCT)
Prior art keywords
input signal
homodyne receiver
irm
ssb
spurious
Prior art date
Application number
PCT/IL2000/000723
Other languages
French (fr)
Other versions
WO2001035538A2 (en
Inventor
Amir Shmuel
Original Assignee
Israel State
Amir Shmuel
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 Israel State, Amir Shmuel filed Critical Israel State
Priority to AU12964/01A priority Critical patent/AU1296401A/en
Publication of WO2001035538A2 publication Critical patent/WO2001035538A2/en
Publication of WO2001035538A3 publication Critical patent/WO2001035538A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

A low spurious frequency offset homodyne receiver that includes an SSB modulator (22) that shifts the frequency of the input signal and whose output is input into an IRM. An oscillator drives the LO port of the SSB (4). The use of an Image Reject mixer (24) in the last conversion stage of the apparatus further reduces the spurious signals found in the output of the homodyne receiver. The combination of passing the input signal first through an SSB (22) and then IRM (24), with the amplifier limited sample (2) of the input signal feeding the LO of the IRM (24), significantly reduces the spurious harmonics found in the output of the homodyne receiver, thus increasing the accuracy of the measurement of the amplitude and phase of the input signal we desire to measure.
PCT/IL2000/000723 1999-11-08 2000-11-06 Low spurious homodyne receiver WO2001035538A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12964/01A AU1296401A (en) 1999-11-08 2000-11-06 Low spurious homodyne receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL132802 1999-11-08
IL13280299A IL132802A (en) 1999-11-08 1999-11-08 Low spurious homodyne receiver

Publications (2)

Publication Number Publication Date
WO2001035538A2 WO2001035538A2 (en) 2001-05-17
WO2001035538A3 true WO2001035538A3 (en) 2001-10-04

Family

ID=11073446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2000/000723 WO2001035538A2 (en) 1999-11-08 2000-11-06 Low spurious homodyne receiver

Country Status (3)

Country Link
AU (1) AU1296401A (en)
IL (1) IL132802A (en)
WO (1) WO2001035538A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3594921B2 (en) 2001-10-24 2004-12-02 日本放送協会 Amplitude modulation signal receiving circuit
DE10318754B4 (en) * 2003-04-25 2008-06-19 Eads Deutschland Gmbh Method for increasing the interference-free dynamic range of nonlinear signal processing components
CN100362747C (en) * 2005-04-07 2008-01-16 上海华为技术有限公司 Circuit for restraining LO leakage
US7646211B2 (en) * 2006-04-03 2010-01-12 Nokia Corporation Circuit and apparatus for reducing interference of digital signals
CN112886983B (en) * 2021-01-25 2022-12-27 维沃移动通信有限公司 Communication transceiver and terminal device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417279A (en) * 1981-02-16 1983-11-22 Hitachi, Ltd. FM Television signal receiving circuit
US5661485A (en) * 1995-09-08 1997-08-26 Condor Systems, Inc. Homodyne receiver apparatus and method
US5710997A (en) * 1995-01-25 1998-01-20 Sony Corporation Superheterodyne receiver apparatus
US5715529A (en) * 1992-06-26 1998-02-03 U.S. Philips Corporation FM receiver including a phase-quadrature polyphase if filter
US6115593A (en) * 1996-05-07 2000-09-05 Nokia Mobile Phones, Ltd. Elimination of D.C. offset and spurious AM suppression in a direct conversion receiver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417279A (en) * 1981-02-16 1983-11-22 Hitachi, Ltd. FM Television signal receiving circuit
US5715529A (en) * 1992-06-26 1998-02-03 U.S. Philips Corporation FM receiver including a phase-quadrature polyphase if filter
US5710997A (en) * 1995-01-25 1998-01-20 Sony Corporation Superheterodyne receiver apparatus
US5661485A (en) * 1995-09-08 1997-08-26 Condor Systems, Inc. Homodyne receiver apparatus and method
US6115593A (en) * 1996-05-07 2000-09-05 Nokia Mobile Phones, Ltd. Elimination of D.C. offset and spurious AM suppression in a direct conversion receiver

Also Published As

Publication number Publication date
AU1296401A (en) 2001-06-06
IL132802A (en) 2004-03-28
IL132802A0 (en) 2001-03-19
WO2001035538A2 (en) 2001-05-17

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