公开(公告)号：DE69227546T2

公开(公告)日：1999-06-17

申请号：DE69227546

申请日：1992-07-10

Applicant: RAYTHEON CO

Inventor： MONTRESS GARY K ,  RUSSELL MARK E

IPC: H03L7/099 ,  H03L7/08 ,  H03L7/081 ,  H03L7/20 ,  H03L7/085 ,  H03B5/32

Abstract: A SAW stabilized oscillator (10) includes a phase locking circuit (38,16,20,22,36) which is phase locked to a lower frequency reference signal having an odd order difference with respect to the fundamental frequency of the SAW oscillator (14). A mixer (54) is disposed in the phase locking circuitry and is used as a sub-harmonic phase detector by mixing the fundamental (54a) with an odd harmonic (54b) of the reference signal (10a). The mixer output (54c) is filtered (70) and amplified (72,74) before being supplied to the control voltage input terminal (36 min ) of a voltage controlled variable phase shifter (36) in the SAW oscillator (14) loop (13).

公开(公告)号：AU2011323966B2

公开(公告)日：2015-03-05

申请号：AU2011323966

申请日：2011-09-22

Applicant: RAYTHEON CO

Inventor： CLARK ROGER L ,  BERMAN SETH A ,  KOZLOWSKI ROBERT E ,  MONTRESS GARY K

IPC: H03H9/02 ,  G01P15/09 ,  G01P15/097 ,  H01L41/053 ,  H03B5/32 ,  H03H9/05 ,  H03H9/10

Abstract: A device, comprising a substrate (140) having opposing first and second surfaces, a first surface acoustic wave resonator (120) disposed on the first surface of the substrate, a second surface acoustic wave resonator (130) disposed on the second surface of the substrate, a first adhesive layer (150) sandwiched between the first surface acoustic wave resonator (120) and the substrate (140), and a second adhesive layer (160) sandwiched between the second surface acoustic wave resonator (130) and the substrate (140). This provides a resonator with low acceleration sensitivity. The adhesive layers may have a portion removed to define a cutout region. A tuning mechanism coupled to the first surface acoustic wave resonator (120) may enable tuning of resonator acceleration sensitivity post assembly in an oscillator.

公开(公告)号：AU2011323966A1

公开(公告)日：2013-04-18

申请号：AU2011323966

申请日：2011-09-22

Applicant: RAYTHEON CO

Inventor： CLARK ROGER L ,  BERMAN SETH A ,  KOZLOWSKI ROBERT E ,  MONTRESS GARY K

IPC: H03H9/02 ,  G01P15/09 ,  G01P15/097 ,  H01L41/053 ,  H03B5/32 ,  H03H9/05 ,  H03H9/10

Abstract: A device, comprising a substrate (140) having opposing first and second surfaces, a first surface acoustic wave resonator (120) disposed on the first surface of the substrate, a second surface acoustic wave resonator (130) disposed on the second surface of the substrate, a first adhesive layer (150) sandwiched between the first surface acoustic wave resonator (120) and the substrate (140), and a second adhesive layer (160) sandwiched between the second surface acoustic wave resonator (130) and the substrate (140). This provides a resonator with low acceleration sensitivity. The adhesive layers may have a portion removed to define a cutout region. A tuning mechanism coupled to the first surface acoustic wave resonator (120) may enable tuning of resonator acceleration sensitivity post assembly in an oscillator.

公开(公告)号：DE69227546D1

公开(公告)日：1998-12-17

申请号：DE69227546

申请日：1992-07-10

Applicant: RAYTHEON CO

Inventor： MONTRESS GARY K ,  RUSSELL MARK E

IPC: H03L7/099 ,  H03L7/08 ,  H03L7/081 ,  H03L7/20 ,  H03L7/085 ,  H03B5/32

Abstract: A SAW stabilized oscillator (10) includes a phase locking circuit (38,16,20,22,36) which is phase locked to a lower frequency reference signal having an odd order difference with respect to the fundamental frequency of the SAW oscillator (14). A mixer (54) is disposed in the phase locking circuitry and is used as a sub-harmonic phase detector by mixing the fundamental (54a) with an odd harmonic (54b) of the reference signal (10a). The mixer output (54c) is filtered (70) and amplified (72,74) before being supplied to the control voltage input terminal (36 min ) of a voltage controlled variable phase shifter (36) in the SAW oscillator (14) loop (13).