GB2373113B - Improvements in or relating to fast frequency-hopping synthesisers - Google Patents

Improvements in or relating to fast frequency-hopping synthesisers

Info

Publication number
GB2373113B
GB2373113B GB0120641A GB0120641A GB2373113B GB 2373113 B GB2373113 B GB 2373113B GB 0120641 A GB0120641 A GB 0120641A GB 0120641 A GB0120641 A GB 0120641A GB 2373113 B GB2373113 B GB 2373113B
Authority
GB
United Kingdom
Prior art keywords
synthesisers
hopping
relating
fast frequency
fast
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.)
Expired - Fee Related
Application number
GB0120641A
Other versions
GB0120641D0 (en
GB2373113A (en
Inventor
John Domokos
Christopher Nigel Smith
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research 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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB0120641A priority Critical patent/GB2373113B/en
Publication of GB0120641D0 publication Critical patent/GB0120641D0/en
Publication of GB2373113A publication Critical patent/GB2373113A/en
Application granted granted Critical
Publication of GB2373113B publication Critical patent/GB2373113B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H03L7/16—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
    • H03L7/183—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 a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/185—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 a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop
    • 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
    • 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
    • H03L7/183—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 a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—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 a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
    • H03L7/189—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 a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop comprising a D/A converter for generating a coarse tuning voltage
    • 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
    • H03L2207/12—Indirect frequency synthesis using a mixer in the phase-locked loop
GB0120641A 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping synthesisers Expired - Fee Related GB2373113B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0120641A GB2373113B (en) 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping synthesisers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0120641A GB2373113B (en) 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping synthesisers

Publications (3)

Publication Number Publication Date
GB0120641D0 GB0120641D0 (en) 2001-10-17
GB2373113A GB2373113A (en) 2002-09-11
GB2373113B true GB2373113B (en) 2003-01-22

Family

ID=9920951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0120641A Expired - Fee Related GB2373113B (en) 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping synthesisers

Country Status (1)

Country Link
GB (1) GB2373113B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7302237B2 (en) 2002-07-23 2007-11-27 Mercury Computer Systems, Inc. Wideband signal generators, measurement devices, methods of signal generation, and methods of signal analysis
EP1712009A1 (en) * 2004-01-26 2006-10-18 Koninklijke Philips Electronics N.V. Frequency generation for a multi-band ofdm based ultra wide-band radio
KR20060129431A (en) * 2004-03-02 2006-12-15 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Serialization of multi-band sequence keying for ultra wideband receiver architecture with reduced complexity and power consumption
GB0701812D0 (en) * 2007-01-31 2007-03-14 Qinetiq Ltd Antenna system and radar system incorporating the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015277A (en) * 1977-11-30 1979-09-05 Plessey Co Ltd Frequency synthesizer
GB2124047A (en) * 1982-07-10 1984-02-08 Plessey Co Plc Frequency synthesiser
US5311560A (en) * 1992-01-13 1994-05-10 Nec Corporation Frequency synthesizer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015277A (en) * 1977-11-30 1979-09-05 Plessey Co Ltd Frequency synthesizer
GB2124047A (en) * 1982-07-10 1984-02-08 Plessey Co Plc Frequency synthesiser
US5311560A (en) * 1992-01-13 1994-05-10 Nec Corporation Frequency synthesizer

Also Published As

Publication number Publication date
GB0120641D0 (en) 2001-10-17
GB2373113A (en) 2002-09-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060824