CA2231636A1 - Self centering frequency multiplier - Google Patents
Self centering frequency multiplierInfo
- Publication number
- CA2231636A1 CA2231636A1 CA2231636A CA2231636A CA2231636A1 CA 2231636 A1 CA2231636 A1 CA 2231636A1 CA 2231636 A CA2231636 A CA 2231636A CA 2231636 A CA2231636 A CA 2231636A CA 2231636 A1 CA2231636 A1 CA 2231636A1
- Authority
- CA
- Canada
- Prior art keywords
- frequency
- control line
- resonant circuit
- frequency multiplier
- self centering
- 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.)
- Granted
Links
- 230000003466 anti-cipated effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/0805—Details of the phase-locked loop the loop being adapted to provide an additional control signal for use outside the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
- H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
- H03B19/14—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a semiconductor device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
- H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path
Abstract
A frequency multiplier (120) having a tunable resonant circuit (122), is anticipated for use with a frequency synthesizer (100) having a Voltage Controlled Oscillator (110). The VCO control line (116) voltage establishes the VCO (110) fundamental frequency (fo) as well as the resonant circuit (122) center frequency, such that the resonant circuit (122) frequency response will track a desired harmonic component within the multiplier output (130) even as the VCO control line (116) voltage and the fundamental frequency (fo) change in response to control line variation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/835,372 | 1997-04-07 | ||
US08/835,372 US5903196A (en) | 1997-04-07 | 1997-04-07 | Self centering frequency multiplier |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2231636A1 true CA2231636A1 (en) | 1998-10-07 |
CA2231636C CA2231636C (en) | 2000-10-24 |
Family
ID=25269350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002231636A Expired - Fee Related CA2231636C (en) | 1997-04-07 | 1998-03-10 | Self centering frequency multiplier |
Country Status (3)
Country | Link |
---|---|
US (2) | US5903196A (en) |
CA (1) | CA2231636C (en) |
GB (1) | GB2324215B (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6150890A (en) * | 1998-03-19 | 2000-11-21 | Conexant Systems, Inc. | Dual band transmitter for a cellular phone comprising a PLL |
US6243569B1 (en) | 1998-08-12 | 2001-06-05 | Analog Devices, Inc. | Direct conversion circuit for radio frequency signals |
US7515896B1 (en) | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6813485B2 (en) | 1998-10-21 | 2004-11-02 | Parkervision, Inc. | Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
US6522868B1 (en) * | 1998-11-04 | 2003-02-18 | Lockheed Martin Corporation | Method and apparatus for generating a communication band signal with reduced phase noise |
US6704558B1 (en) | 1999-01-22 | 2004-03-09 | Parkervision, Inc. | Image-reject down-converter and embodiments thereof, such as the family radio service |
US6704549B1 (en) | 1999-03-03 | 2004-03-09 | Parkvision, Inc. | Multi-mode, multi-band communication system |
US6853690B1 (en) | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
US6658216B1 (en) * | 1999-03-31 | 2003-12-02 | Matsushita Electric Industrial Co., Ltd. | Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
US6985702B2 (en) | 2001-02-23 | 2006-01-10 | Koninklijke Philips Electronics N.V. | Transceiver with frequency multiplier tracked to frequency generator |
US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US6987424B1 (en) * | 2002-07-02 | 2006-01-17 | Silicon Laboratories Inc. | Narrow band clock multiplier unit |
US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US7696797B1 (en) | 2005-03-31 | 2010-04-13 | Schnaitter William N | Signal generator with output frequency greater than the oscillator frequency |
US7421252B2 (en) * | 2005-08-02 | 2008-09-02 | Freescale Semiconductor, Inc. | Center frequency control of an integrated phase rotator band-pass filter using VCO coarse trim bits |
US7541849B2 (en) * | 2005-08-09 | 2009-06-02 | Seiko Epson Corporation | Phase locked circuit |
US8655296B2 (en) * | 2007-12-18 | 2014-02-18 | Harris Corporation | Frequency synthesizer and related method for generating wideband signals |
CN101931367B (en) * | 2010-10-12 | 2012-05-30 | 西安天伟电子系统工程有限公司 | 100MHz frequency tripler based on N-P-N triode |
US10498346B2 (en) | 2017-11-09 | 2019-12-03 | Raytheon Company | Midband phase noise reducer for PLLS |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1015283A (en) * | 1961-10-02 | 1965-12-31 | Avco Corp | Frequency synthesizer for single sideband communications |
US4433315A (en) * | 1981-11-24 | 1984-02-21 | General Electric Company | Tunable coupling network |
JPS6359116A (en) * | 1986-08-28 | 1988-03-15 | Mitsubishi Electric Corp | Pll frequency synthesizer |
US4888564A (en) * | 1987-11-06 | 1989-12-19 | Victor Company Of Japan, Ltd. | Phase-locked loop circuit |
US5121015A (en) * | 1990-11-14 | 1992-06-09 | Zenith Electronics Corporation | Voltage controlled delay element |
EP0691746A1 (en) * | 1993-03-18 | 1996-01-10 | Kabushiki Kaisha Toshiba | Frequency synthesizer |
US5438300A (en) * | 1994-04-01 | 1995-08-01 | National Semiconductor Corporation | Digital frequency multiplier utilizing digital controlled oscillator |
GB2294599B (en) * | 1994-10-28 | 1999-04-14 | Marconi Instruments Ltd | A frequency synthesiser |
-
1997
- 1997-04-07 US US08/835,372 patent/US5903196A/en not_active Expired - Lifetime
-
1998
- 1998-03-10 CA CA002231636A patent/CA2231636C/en not_active Expired - Fee Related
- 1998-03-30 GB GB9806577A patent/GB2324215B/en not_active Expired - Fee Related
- 1998-11-12 US US09/190,789 patent/US5973570A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2231636C (en) | 2000-10-24 |
US5973570A (en) | 1999-10-26 |
GB2324215A (en) | 1998-10-14 |
US5903196A (en) | 1999-05-11 |
GB2324215B (en) | 1999-06-16 |
GB9806577D0 (en) | 1998-05-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20180312 |