Very low phase noise temperature stable voltage controlled...

H - Electricity – 03 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03B 5/04 (2006.01) H05K 7/20 (2006.01) H05K 1/14 (2006.01)

Patent

CA 2452199

A broadband, very low phase noise, temperature stable sync loss free voltage controlled oscillator ("VCO circuit") is described. One use of the invention would be in a radio receiver for receiving phase modulated signals from a remote transmitter. In one embodiment of the invention, the VCO circuit is disposed on a printed wiring board ("PWB") (102) spaced apart from the PWB (104) on which the synthesiser circuit is disposed. The VCO oscillator (110), a varactor (120), and one or more buffer amplifiers (112). Additionally, a positive temperature coefficient resistive heating element ("PTC") may be included. In a preferred embodiment, the resonator (108), voltage controlled oscillator (110), varactor (120), and buffer amplifiers (112) may be disposed on the other side of the PWB and the PTC may be disposed on the other side of the PWB. Blind vias (116) in the PWB (102) enhance heat transfer from the PTC to the circuit elements on the other side of the PWB. The PWB may be encased in a thermal insulator.

L'invention porte sur un oscillateur accordé par tension (VCO) thermostable sans perte de synchronisation, à large bande et très faible bruit de phase, pouvant notamment être monté dans un récepteur radio recevant d'un émetteur lointain des signaux modulés en phase. Dans une exécution, le circuit du VCO est réalisé sur une plaquette de circuit imprimé (PWB) (102) séparée de la plaquette (104) portant le circuit du synthétiseur. Le circuit du VCO peut comprendre un oscillateur (110), un varactor (120), un ou plusieurs amplificateurs tampons (112), et facultativement une résistance chauffante à coefficient positif de température (PTC). Dans l'exécution préférée le résonateur (108), le VCO (110), le varactor (120), et les amplificateurs tampons (112) sont disposés d'un côté de la plaquette, et le PTC de l'autre. Des vias aveugles (116) peuvent être formés dans la plaquette (102) pour favoriser le transfert thermique du PTC vers les éléments de circuit disposés du côté opposé. La plaquette peut être encapsulée dans un isolateur thermique.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Very low phase noise temperature stable voltage controlled... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Very low phase noise temperature stable voltage controlled..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Very low phase noise temperature stable voltage controlled... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1398048

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.