Bandpass Cavity Filters

 

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. It is equivalent to a parallel-tuned circuit and is most often used for general transmitter spurious clean-up or a sharpening of a single receiver front end selectivity with or without amplification.

TX RX bandpass cavities (4", 6", 8” and 10") have adjustable selectivity characteristics (rotatable loops) to allow a trade-off between insertion loss (0.5--3.0 dB) and selectivity. Maximum power handling is typically determined by insertion loss setting.

T-Pass Cavity Filters are a variation of the Bandpass cavity used for our expandable multicoupler applications. Its general characteristics are nearly identical to a bandpass cavity but the output loop has a pair of N-connectors so it can easily be coupled to other channels.

 

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Item No	Item Name	Frequency Range	Max Power per Cavity	Interface Specs Ω
11-35 Series	Bandpass Cavity Filters	108-136 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL	50
11-36 Series	Bandpass Cavity Filters	132-150 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL	50
11-37 Series	144-174 MHz, Bandpass Cavity Filters	144-174 MHz	270 W, per cavity @ 0.5 dB IL (100 W - Model: 11-37-09) 60W, per cavity @ 3.0 dB IL (N/A - Model: 11-37-09)	50
11-53-01	225-400 MHz, Bandpass Cavity Filter	225-400	100 W, per cavity @ 0.5 dB IL 100 W, per cavity @ 3.0 dB IL	50
11-65-26	406-420 MHz, Bandpass Cavity Filters	406-420 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL	50
11-69 Series	470-512 MHz, Bandpass Cavity Filters	470-512 MHz	270 W, per cavity @ 0.5 dB IL (100 W - Model: 11-69-09) 60 W, per cavity @ 3.0 dB IL (N/A - Model: 11-69-09)	50
11-70 Series	450-470 MHz, Bandpass Cavity Filters	450-470 MHz	270 W, per cavity @ 0.5 dB IL (100 W - Model 11-70-09) 60W, per cavity @ 3.0 dB IL (N/A - Model 11-70-09)	50
11-83B Series	746-869 MHz, Bandpass Cavity Filters	746-869 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL	50
11-86 Series	806-821 MHz, Bandpass Cavity Filters	806-821 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL	50
11-87 Series	851-866 MHz, Bandpass Cavity Filters	851-866 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL	50
11-88 Series	806-960 MHz, Bandpass Cavity Filters	806-960 MHz	270 W, per cavity @ 0.5 dB IL 60W, per cavity @ 3.0 dB IL
11-90-05	806-960 MHz, Bandpass Cavity Filters	806-960 MHz	100 W, per cavity @ 0.5 dB IL N/A, per cavity @ 3.0 dB IL