Ceramic Resonator Filter

Ceramic coaxial resonators with high q and very good temperature stability are perfectly suitable for oscillators and as elements of filters bandpass bandstop notch and duplexers typically.

Ceramic resonator filter.

Trans tech designs space saving resonator filters with very low profile 2mm 1 85mm and 1 5mm for frequencies up to 7ghz and high power ceramic filters for frequencies up to 2ghz with power levels up to 100w. Ceramic resonators ceralock ceramic resonators ceralock are made of high stability piezoelectric ceramics that function as a mechanical resonator. Ceralock find a broad range of applications such as automotive electronics communications personal computing and medical healthcare equipment. Custom rf microwave filters and ceramic resonators for any application.

Ceramic resonator filters by contrast can achieve high rejection and selectivity with much lower insertion loss typically 1 5 db or better than l c filters with comparable rejection performance. Ceramic resonators look similar to ceramic filters. Product lineup technical reference application support documents pdf. Catalog of trans tech s rf components.

Less demanding applications such as impedance matching or tuning will benefit from. Coaxial resonators are manufactured as quarter wave or half wave and as multiresonator blocks. As you can see the main resonans is at 455khz but there are several other resonans frequency. To learn more call our engineering hotline at 858 259 2600.

Ceramic resonator technology can also be used in electronic circuit design to provide a bandpass filter. Although they are slightly larger than l c filters ceramic resonator filters are still an acceptable size and cost for gnss application requirements. Ceramic filters are frequently used in the if stages of superheterodyne receivers. Our dielectric resonator materials are custom blended and sized to suit the individual filter or oscillator design.

Originally ceramic filters were used as very low cost filters for broadcast radio receivers both medium wave sets with typical ifs of 455khz and fm broadcast sets with if stages at around 10 7mhz. The filters have three connections rather than the two used for the basic ceramic resonator. Skyworks solutions through its wholly owned subsidiary trans tech offers proprietary ceramic materials to provide engineers the best solutions for size q factor temperature stability and cost. This diagram shows the impedans and frequency behavior in a 455khz ceramic filter.

Long years of experience in the design and mass production of piezoelectric ceramic filters have enabled murata electronics to develop and produce economical and highly reliable ceramic resonators as a stabilization. Read more in this ceramic resonator filter presentation. Leaded ceramic passband filters showing the three connection pins input output common.