Bird Technologies - The RF Experts

RF Filter Products

Bird Technologies designs and builds superior and reliable RF filters whether for harsh conditions or the most challenging situations. Reliability is both a promise and our reality.

Bird makes the world's most reliable RF filters because we have to. No matter the product or its application or its customer, each is made with our single-minded devotion to reliability.

RF Filter Products

Although a primary building block for duplexers, multicouplers and preselectors, these cavities filters can be used individually or cascaded together to prevent interference or system clean up. Our TX RX Systems brand cavity filter product line consists of four model types.

All types of RF filters listed below may be cascaded to achieve an arithmetic sum of individual filter attenuation. Up to 6 dB of additional attenuation can be achieved when the proper length of cable is used to interconnect the cavities.

Bandpass Cavity Filters

The Bandpass cavity passes one narrow band of frequencies and attenuates all others with increasing attenuation above and below the pass frequency.

Series-Notch Cavity Filters

The Series-Notch® passes a relatively wide band of frequencies while rejecting a very narrow band of frequencies.

Vari-Notch Cavity Filters

The Vari-Notch® design passes a relatively narrow band of frequencies and rejects (notches out) a relatively wide frequency band.

Cavity Filter Loop Kits

76 Series, Cavity Filter Loop Kits allow the same cavity shells to be configured for different responses in order to suit different application needs.