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US 7,119,613 B2Granted
RF amplifier
AssigneeKoninklijke Philips Electronics N.V.
InventorTheodorus Wilhelmus Bakker
Life of this patent
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AssigneeKoninklijke Philips Electronics N.V.
InventorTheodorus Wilhelmus Bakker
Estimating the term…
A RF amplifier device (22) including an amplifier element (24) compensated by a compensating circuit (26, 28) with respect to its output capacitance and frequency decoupled from its power supply (26), wherein the decoupling circuit is directly connected to the compensating circuit (26, 28) and a RF amplifier device including an amplifier element (56, 80) and a compensating circuit comprising an internal shunt inductor having a compensating inductance (58, 60, 62) and a compensating capacitance (64, 92) and arranged in parallel to a terminal of the amplifier element (56, 80) to compensate a terminal capacitance of the amplifier element (56, 80), and a decoupling and power supply lead (76, 98) which is connected to the compensating capacitance (64, 92) and/or a decoupling circuit (100) and/or a combination of the compensating capacitance and the decoupling circuit (130) and a module thereof and a method for decoupling the mentioned RF amplifier device.
An RF amplifier device (22) comprising an amplifier element (24) with a frequency dependent gain, said frequency dependence being caused by an input and/or an output capacitance, said frequency dependence being compensated by a compensating circuit (26, 28), said compensating circuit (26, 28) for compensating for said frequency dependence being directly connected to a power supply connection terminal (36), said power supply connection terminal (36) being connected to a decoupling circuit (38).
A method for decoupling an RF amplifier device (22) comprising an amplifier element (24) with a frequency dependent gain, said frequency dependence being caused by an input and/or an output capacitance, said frequency dependence being compensated by a compensating circuit (26, 28), said compensating circuit (26, 28) for compensating for said frequency dependence being directly connected to a power supply connection terminal (36), said power supply connection terminal (36) being coupled to ground (34) via a frequency dependent impedance (38).
Dependencies are inferred from the claim text.