Oscillation circuit and radio communication device using the...

Oscillators – Solid state active element oscillator – Significant distributed parameter resonator

Reexamination Certificate

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C331S034000, C331S074000, C331S1070DP, C331S135000

Reexamination Certificate

active

10902686

ABSTRACT:
An power divider and a surface acoustic wave resonator are provided to a feedback path of an amplifier for oscillation. The surface acoustic wave resonator connects an input side of the amplifier and the power divider connects an output side of the amplifier so as to suppress an input power input to the surface acoustic wave resonator and to secure an output power output from an output terminal of the power divider.

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Avramov I D et al, “High-performance surface transverse wave based voltage controlled feedback oscillators in the 2.0 to 2.5 GHz range”, Frequency Control Symposium, 1998, pp. 519-527.
Communication from European Patent Office re: counterpart application, Jan. 2005.

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