A number of pairs of electrodes are coated on the piezoelectric substrate by an integrated process. Each pair of electrodes is composed of a resonant element.
Discrete Crystal Filter adopts the integrated technology, which has the advantages of small volume, high stability and low cost. It is usually made into band pass, mainly using quartz crystal as substrate, working band is 5 ~ 200 MHz, relative bandwidth is about 0.01 ~ 0.3 %. Because it works in the same way as a mechanical filter, also known as a single piece of mechanical filter, this filter can also be composed of multiple pieces to reduce the requirements of the process.
Our company has extensive experience in exporting crystal filters. We welcome customers to come to us for advice.