Integrated resonance circuit

Oscillators – L-c type oscillators

Reexamination Certificate

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C331S1170FE, C331S060000

Reexamination Certificate

active

07629859

ABSTRACT:
An integrated resonance circuit is provided for providing a high-frequency output signal, comprising a first output for providing a first high-frequency output signal with a first frequency and a first amplitude, a first inductive unit connected to the first output, and a first capacitive unit connected to the first output. According to the invention, a second output for providing a second high-frequency output signal with a second frequency and a second amplitude is provided, whereby the second frequency matches the first frequency and the second amplitude differs from the first amplitude, and a second inductive unit, connected to the first output and to the second output, and a second capacitive unit, connected to the second output, are provided. The invention relates furthermore to a voltage-controlled oscillator and to an integrated circuit.

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Y. Sun et al., “A Fully Integrated Dual-Frequency Push-Push VCO for 5.2 and 5.8 GHz Wireless Applications”, Microwave Journal, 2001, Apr., pp. 64, 66, 68, 70, 72, 74.
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Wu H et al.: “Differential 4-tap and 7-tap transverse filters in SiGe for 10Gb/s multimode fiber optic link equalization”, Digest of Technical Papers ISSCC 2003 Feb. 2003, pp. 1-10.

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