Resonators[trade_no] are critical to the performance of oscillators[trade_no]and filters[trade_no]. Common resonator types include transmission line resonators, coaxial resonators, dielectric resonators, crystal resonators[trade_no], ceramic resonators[trade_no], surface acoustic wave (SAW) resonators, bulk acoustic wave (BAW) resonators, and yttrium iron garnet (YIG) resonators.
Generally speaking, crystal resonators are better than ceramic resonators in performance. Crystal resonators are also called quartz crystal resonators. Crystal resonators are quartz crystal resonators made of quartz materials that produce frequency. They are stable and have good anti-interference performance. They are widely used in various electronic products.
Quartz crystal oscillator is one kind of crystal oscillator. The correct classification method of crystal oscillator is quartz crystal oscillator and ceramic crystal oscillator. Obviously, quartz and ceramic are the distinction of crystal oscillator material.
Quartz crystal oscillator is an electronic component used to stabilize and select frequency. It has been widely used in wireless telephone, carrier communication, radio and television, satellite communication, digital instruments, clocks and other electronic equipment.
Back to ceramic resonators.
The accuracy of ceramic resonator is inferior to that of quartz crystal, but because of its low price, it can be used as a substitute for crystal resonator in applications with low accuracy requirements.
The working principle of ceramic resonator is similar to that of crystal resonator, which is also based on the piezoelectric properties of materials, such as lead zirconium titanate (PZT). In the ceramic resonator, the ceramic substrate is sandwiched between two metal electrodes at the top and bottom. When a voltage is applied to the electrode, the ceramic substrate begins to vibrate, resulting in a resonant frequency depending on the thickness of the substrate material.
