Ceramic Filters

CER0310B application field and working principle

CER0310B ceramic filter is a high-performance miniaturized dielectric filter component developed for the wireless communication market. The products are widely used in various wireless communication products, such as wireless LAN, wireless mobile phones, base stations and so on. The main use is for 3G/4G/5G mobile phones, wirelessLAN, and stations. The filter is designed and manufactured using advanced MEMS technology and multilayer high-order dielectric filter technology to provide accurate center frequency and superior frequency characteristics and thermal performance.

In terms of applications, a CER0310B ceramic filter can be used for: 802.11a/b/g/n/ac is supported for both 2.4GHz and 5GHz networks; WCDMA 2-6GHz; WiMAX 2-6GHz; LTE 700-3.5GHz; Bluetooth. CER0310B ceramic filters are also suitable for use in RFID, microwave point-to-point links, automatic meter readers, wireless communication, television and satellite communication, test and measurement instruments, cable TV, and other wireless communication systems.

Working Principle

The CER0310B ceramic filter is mainly composed of an RF port, a variable capacitor, a ceramic resonator, and a filter. The RF port is connected to the filter core, which is composed of variable capacitors and ceramic resonators. The variable capacitor is filled with air and acts as a tuning capacitor, which can adjust the operating frequency of the filter. The ceramic resonator is the main element of the filter. The main function of the filter is to pass the desired signal frequency while rejecting the other unwanted frequencies. The filter provides an attenuation characteristic for the signal beyond the pass band, so that the signal in the stop band will be blocked, so as to achieve the purpose of isolating noise.

CER0310B ceramic filter has excellent RF characteristics and temperature performance, with low loss, high out-of-band rejection, low inter-modulation distortion and fast switch time. Its capacitance is stable even when the temperature changes, so the frequency of the signal can be kept the same in different temperature conditions.

Conclusion

CER0310B ceramic filter is a high-performance miniaturized dielectric filter component developed for the wireless communication market. Used for 802.11a/b/g/n/ac, WCDMA 2-6GHz, WiMAX 2-6GHz, LTE 700-3.5GHz, Bluetooth, RFID, microwave point-to-point links, automatic meter readers, wireless communication, television and satellite communication, test and measurement instruments, cable TV, and other wireless communication systems. The filter is designed and manufactured using advanced MEMS technology and multilayer high-order dielectric filter technology to provide accurate center frequency and excellent frequency characteristics and thermal performance, which can effectively isolate noise and attenuate signals in the stop band.