Varactor device with reduced temperature dependence
Patent, 2010
he 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).
Inventor
Spartak Gevorgian
Chalmers, Applied Physics, Physical Electronics
Harald Jacobsson
Thomas Lewin
Patent information
Applicant
Telefonaktiebolaget Lm Ericsson
Patent number
US 7679461 B2
Publication date
2010-03-15
Application number
US 11/577,063
Application date
2004-10-10
Categorizing
Subject Categories (SSIF 2011)
Electrical Engineering, Electronic Engineering, Information Engineering