GB2241846B - Surface acoustic wave (saw) oscillator - Google Patents

Surface acoustic wave (saw) oscillator

Info

Publication number
GB2241846B
GB2241846B GB9005438A GB9005438A GB2241846B GB 2241846 B GB2241846 B GB 2241846B GB 9005438 A GB9005438 A GB 9005438A GB 9005438 A GB9005438 A GB 9005438A GB 2241846 B GB2241846 B GB 2241846B
Authority
GB
United Kingdom
Prior art keywords
saw
oscillator
acoustic wave
surface acoustic
wave
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
GB9005438A
Other versions
GB2241846A (en
GB9005438D0 (en
Inventor
Adrian Nigel Farr
Ian James Forster
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.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi Co 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 GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB9005438A priority Critical patent/GB2241846B/en
Publication of GB9005438D0 publication Critical patent/GB9005438D0/en
Publication of GB2241846A publication Critical patent/GB2241846A/en
Application granted granted Critical
Publication of GB2241846B publication Critical patent/GB2241846B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/16—Networks for phase shifting
    • H03H11/20—Two-port phase shifters providing an adjustable phase shift
    • 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
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
GB9005438A 1990-03-10 1990-03-10 Surface acoustic wave (saw) oscillator Expired - Fee Related GB2241846B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9005438A GB2241846B (en) 1990-03-10 1990-03-10 Surface acoustic wave (saw) oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9005438A GB2241846B (en) 1990-03-10 1990-03-10 Surface acoustic wave (saw) oscillator

Publications (3)

Publication Number Publication Date
GB9005438D0 GB9005438D0 (en) 1990-05-09
GB2241846A GB2241846A (en) 1991-09-11
GB2241846B true GB2241846B (en) 1994-06-01

Family

ID=10672409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9005438A Expired - Fee Related GB2241846B (en) 1990-03-10 1990-03-10 Surface acoustic wave (saw) oscillator

Country Status (1)

Country Link
GB (1) GB2241846B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514174C2 (en) 1999-03-09 2001-01-15 Ericsson Telefon Ab L M Variable resonant frequency resonator
US6801097B2 (en) * 2002-07-18 2004-10-05 Qualcomm Incorporated Wideband VCO resonant circuit method and apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836096A (en) * 1957-04-30 1960-06-01 Western Electric Co Improvements in or relating to networks of the bridged-t type
GB1019024A (en) * 1962-05-14 1966-02-02 Ampex Improvements in or relating to variable delay networks
GB1449841A (en) * 1973-04-09 1976-09-15 Mullard Ltd Oscillators
EP0171529A2 (en) * 1984-08-14 1986-02-19 Blaupunkt-Werke GmbH Tunable resonance circuit for a PLL-FM demodulator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836096A (en) * 1957-04-30 1960-06-01 Western Electric Co Improvements in or relating to networks of the bridged-t type
GB1019024A (en) * 1962-05-14 1966-02-02 Ampex Improvements in or relating to variable delay networks
GB1449841A (en) * 1973-04-09 1976-09-15 Mullard Ltd Oscillators
EP0171529A2 (en) * 1984-08-14 1986-02-19 Blaupunkt-Werke GmbH Tunable resonance circuit for a PLL-FM demodulator

Also Published As

Publication number Publication date
GB2241846A (en) 1991-09-11
GB9005438D0 (en) 1990-05-09

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980310