China Ceramic RF Filter

What are Ceramic RF Filters?
The ceramic filter is made of lead zirconate titanate ceramic material, which is made into a sheet, coated with silver on both sides as electrodes, and has piezoelectric effect after DC high voltage polarization. It has the function of radio frequency filtering, has the characteristics of stability and good anti-interference performance, and is widely used in various electronic products such as TV sets, video recorders, and radios as frequency selection components. It has the advantages of stable performance, no adjustment, and low price, and replaces the traditional LC filter network.

The filter filters the input signal from the antenna to the receiver and the output signal from the transmitter to the antenna. The filter has a ceramic core with through holes extending between sides of the core. The vias form a coupling resonator and a trap resonator. Two notch resonators are located on the sides of the block, while two of the notch resonators are located in the center of the block. The coupling resonator is located between the end trap resonator and the central notch resonator. The notch resonator has a resonant frequency outside the desired passband, thus providing a notch zero or pole.
[Claims] A communication filter comprising: a dielectric block having first and second end portions and a central portion therebetween; first and second antenna coupling pads on the dielectric block; a transmitter coupling pad on the dielectric block; a receiver coupling pad on the dielectric block; a plurality of coupled resonators extending through the dielectric block; A trap resonator extends through the dielectric block and is centrally located between the first and second antenna coupling pads, the trap resonator providing attenuation outside the desired passband.

Ceramic notch filters, ceramic RF filters, and ceramic discriminators are the main components of RF front-end filters or duplexers for mobile products today. Piezoelectric ceramics are known for their small size, light weight, low price, and quality stability factor and high band resistance. It is widely used in RF front-end and intermediate frequency, and is suitable for duplexer or multiplexer of multi-mode and multi-band mobile terminals.

The special piezoelectric ceramic materials developed and produced by YAXUN Electronics are used in the production of filters, frequency discriminators, notch filters and other products. It has the characteristics of excellent far stop band, good pass band characteristics, high stop band suppression, small sound interference, stable performance, and cheap price. High compatibility with Japanese Murata piezoelectric ceramic components. Mainly used in color TV audio intermediate frequency circuits, communications, and consumer products.

LTCC Ceramic Filters Good consistency for small size ceramic filters 3dB BW from 5% to 50% sealed, moisture-proof LTCC structure, surface mountable Frequency range from 80MHz to 9GHz (LPF)                   140MHz to 7GHz (BPF) Size: Length 3.2-9mm, Width 1.6-5mm, Height 0.9-2mm Custom RF Passive Filters As a manufacturer of RF passive components, we can design various products according to customers' applications. Solve Your RF Passives Problems in 3 Steps	Ceramic waveguide filter   This filter is custom manufactured. As a radio frequency filter company, YAXUN can customize and produce filters of different frequencies. Promise All RF Passive Filters come with a 1 year warranty. parameter There are 4~10 sections to choose from 3dB BW from 15% to 50% Covers the frequency range 1GHz to 6GHz Working temperature: -40℃~+70℃ Storage temperature: -55℃~+85℃	Thin Film RF Filters high power 3dB BW from 5% to 60% Coplanar waveguide input and output Available in levels 3-13 Frequency range from 2GHz to 40GHz Custom RF Passive Thin Film Filters YAXUN can design various passive thin film filters according to customers' applications.

YAXUN Electronics produces piezoelectric ceramic components, which are available in surface mount, lead, and patch types, which are compatible with Murata piezoelectric ceramic components and comply with RoHS regulations. In 2000, it started to reduce the use of lead and launched a green plan to fully meet the requirements of customers and environmental protection. It is recommended to contact Demingte engineers during the product design stage to obtain the best IC matching performance. Provide complete dimensions of piezoelectric ceramic components, complete frequency range, and provide a comparison table between our company's part number and Murata's part number, and download the series product catalog. It can be manufactured according to the needs of customers. If you need special specifications and types, please contact YAXUN Electronics.