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HighQ-Slide7

High frequency capacitors are used for applications such as impedance matching, DC decoupling, and resonance circuits. This type of capacitor improves circuit performance in each application area. For impedance matching, a high frequency capacitor is connected in a parallel or series configuration in order to match the input or output impedance of the transistor. By having a tight tolerance high frequency (Hi-Q) capacitor, the return loss or reflection loss is reduced. In a DC decoupling application, a high frequency capacitor can be used to pass a signal without the DC portion. For resonant circuits, high frequency capacitors are used along with the required inductive and resistive values to produce the desired resonant frequency.

PTM Published on: 2011-11-02