GB2373113B - Improvements in or relating to fast frequency-hopping synthesisers - Google Patents
Improvements in or relating to fast frequency-hopping synthesisersInfo
- 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
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
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)
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 |
JP2007522726A (en) * | 2004-01-26 | 2007-08-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Multiband OFDM-based ultra-wideband radio frequency generation |
US8331424B2 (en) * | 2004-03-02 | 2012-12-11 | Nxp B.V. | 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)
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 |
-
2001
- 2001-08-24 GB GB0120641A patent/GB2373113B/en not_active Expired - Fee Related
Patent Citations (3)
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 |
---|---|
GB2373113A (en) | 2002-09-11 |
GB0120641D0 (en) | 2001-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20060824 |