A varactor device with reduced temperature dependence

H - Electricity – 03 – B

Patent

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Details

H03B 5/04 (2006.01) H03H 5/12 (2006.01) H03J 3/04 (2006.01)

Patent

CA 2582322

The invention discloses a varactor device (100) for improved temperature stability, comprising a first varactor (160) connected to a decoupling network (150). The device further comprises a voltage stabilizer (110), said stabilizer comprising a capacitor (140) and a temperature dependent capacitor (130), and in that the stabilizer comprises means for connection to a DC-feed (120). Suitably, the decoupling network (150) is connected in parallel to the first varactor (160), and the capacitor (140) of the voltage stabilizer (110) is connected in parallel to the decoupling network (150), the temperature dependent capacitor (130) of the voltage stabilizer (110) being connected in series to the diode of the voltage stabilizer (110).

Dispositif varacteur (100) assurant une stabilité améliorée à la température, comprenant un premier varacteur (160) connecté à un réseau de découplage (150). Le dispositif comprend en outre un stabilisateur de tension (110) comportant un condensateur (140) et un condensateur dépendant de la température (130), le stabilisateur comprenant des moyens de connexion à une alimentation CC (120). Le réseau de découplage (150) se prête à une connexion en parallèle avec le premier varacteur (160) alors que le condensateur (140) du stabilisateur de tension (110) se prête à une connexion en parallèle avec le réseau de découplage (150), le condensateur dépendant de la température (130) du stabilisateur de tension (110) étant connecté en série avec la diode du stabilisateur de tension (110).

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