An RF capacitor is a capacitor whose characteristics are favorable at RF frequencies. Materials are chosen and the design is optimized so that the capacitor’s characteristics are well suited at the higher frequencies. By using copper instead of nickel for their electrode plates, RF ceramic capacitors have significantly lower ESR and a higher self-resonant frequency. High-Q is achieved by combing these electrodes with a low-loss C0G material.
Thursday, July 23rd, 2015