High-quality Crystal Filter – Design and Realization

Abstract

Analog oscillators and filters are still very important devices in modern telecommunication and measurement equipment. Quartz crystal units are used for high-quality oscillators and filters, due to their extremely stable resonant frequency and Q-factor. In this paper the design and realization of a high-quality bandpass quartz crystal filter with a possible application to antenna circuitry is described.

Keywords

• Crystal units
• crystal filters
• filter design
• filter realization
• communications
• digital communications