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GB2552212B - Pre-distortion compensation for voltage controlled oscillators - Google Patents

Pre-distortion compensation for voltage controlled oscillators Download PDF

Info

Publication number
GB2552212B
GB2552212B GB1612261.6A GB201612261A GB2552212B GB 2552212 B GB2552212 B GB 2552212B GB 201612261 A GB201612261 A GB 201612261A GB 2552212 B GB2552212 B GB 2552212B
Authority
GB
United Kingdom
Prior art keywords
voltage controlled
distortion compensation
controlled oscillators
oscillators
compensation
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB1612261.6A
Other versions
GB201612261D0 (en
GB2552212A (en
Inventor
Alloulah Mohammed
Dawkins Mark
Burdett Alison
Devita Gabriele
Chi Wai Wong Alan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ensilica Ltd
Original Assignee
Ensilica Ltd
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 Ensilica Ltd filed Critical Ensilica Ltd
Priority to GB1612261.6A priority Critical patent/GB2552212B/en
Publication of GB201612261D0 publication Critical patent/GB201612261D0/en
Publication of GB2552212A publication Critical patent/GB2552212A/en
Application granted granted Critical
Publication of GB2552212B publication Critical patent/GB2552212B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/361—Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0958—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation by varying the characteristics of the voltage controlled oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0991—Modifications of modulator for regulating the mean frequency using a phase locked loop including calibration means or calibration methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB1612261.6A 2016-07-14 2016-07-14 Pre-distortion compensation for voltage controlled oscillators Active GB2552212B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1612261.6A GB2552212B (en) 2016-07-14 2016-07-14 Pre-distortion compensation for voltage controlled oscillators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1612261.6A GB2552212B (en) 2016-07-14 2016-07-14 Pre-distortion compensation for voltage controlled oscillators

Publications (3)

Publication Number Publication Date
GB201612261D0 GB201612261D0 (en) 2016-08-31
GB2552212A GB2552212A (en) 2018-01-17
GB2552212B true GB2552212B (en) 2020-12-23

Family

ID=56890624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1612261.6A Active GB2552212B (en) 2016-07-14 2016-07-14 Pre-distortion compensation for voltage controlled oscillators

Country Status (1)

Country Link
GB (1) GB2552212B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020196864A1 (en) * 2001-06-19 2002-12-26 Booth Richard W.D. Hybrid polar modulator differential phase cartesian feedback correction circuit for power amplifier linearization
US7902891B1 (en) * 2009-10-09 2011-03-08 Panasonic Corporation Two point modulator using voltage control oscillator and calibration processing method
US8009762B1 (en) * 2007-04-17 2011-08-30 Rf Micro Devices, Inc. Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020196864A1 (en) * 2001-06-19 2002-12-26 Booth Richard W.D. Hybrid polar modulator differential phase cartesian feedback correction circuit for power amplifier linearization
US8009762B1 (en) * 2007-04-17 2011-08-30 Rf Micro Devices, Inc. Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter
US7902891B1 (en) * 2009-10-09 2011-03-08 Panasonic Corporation Two point modulator using voltage control oscillator and calibration processing method

Also Published As

Publication number Publication date
GB201612261D0 (en) 2016-08-31
GB2552212A (en) 2018-01-17

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Legal Events

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20180111 AND 20180117