In the next part, the theory and advantages of ring oscillator and multi-push VCO are introduced, respectively, and a ring-based triple-push VCO with extremely wide tuning range is proposed.

• 第二部份分别描述环形振荡器与多推式振荡器的原理及优点，并且提出一个以环形振荡器为本体的极宽频三推式压控式振荡器。