A line of band pass and band reject tunable filters has been introduced by Fairview Microwave. The tunable band pass filters and band reject filters are effective in band selection or frequency discrimination with high attenuation greater than 50 dB possible, allowing for excellent noise, harmonic and adjacent-band reduction. The filters are designed with ruggedized aluminum casings with critical surfaces being silver plated, making them highly durable in a demanding environment.
Fairview’s latest release includes 6 bandpass filters capable of octave-band tuning from 125 MHz to 3 GHz depending on configuration, and a 5% pass band. They employ a 5-section tunable design and have a mechanical dial accurate within 1%. Also offered by Fairview, are 5 new band-reject models with octave-band tuning ranges from 100 MHz to 2 GHz depending on configuration, and a 1% reject band. These band reject filters use a 3-section design and have a mechanical dial tuner accurate to 0.5%. Each of the new bandpass filters and band reject filters from Fairview are rated to 50 Watts CW power handling and are designed with N female connectors.
“Tunable filters are frequently used by RF design engineers in EMC/wireless test environments to ensure their systems are operating properly in a crowded RF/microwave spectrum environment. These filters provide a handy solution for pre-tuning desired signals and rejecting unwanted interference”, says Greg Arnold, Technical Sales Manager at Fairview Microwave.