Patent ID: 7102454
Filing Date: 2006-09-05
Classification: H03B,H03C,H03J,H03L

Abstract:
1. A voltage controlled oscillator system comprising: a frequency tuning circuit for receiving a frequency turning signal and a frequency tuning bias signal; a modulation circuit coupled in a parallel fashion with the frequency tuning circuit; at least one band tuning circuits coupled with the frequency tuning circuit in a parallel fashion having at least one switching circuit for receiving at least one band tuning signal and at least one switching signal; and a core circuit coupled with the frequency tuning circuit, the modulation circuit, and the band tuning circuit for providing a first output and a second output that are complementary to each other, wherein the core circuit has at least one inductance module for providing a predetermined inductance, wherein upon asserting the switching signal, the switching circuit is enabled for configuring the band tuning circuit to join the frequency tuning circuit for determining a predetermined output frequency based on a total inductance and a total capacitance provided by the core circuit, the frequency tuning circuit, the modulation circuit and the band tuning circuit upon adjusting the frequency tuning signal, the frequency tuning bias signal, and the band tuning signal, and wherein all elements of the voltage controlled oscillator system are arranged in a substantially symmetrical fashion.