Notch Filters

K&L Microwave provides notch filters, also called bandstop or bandreject filters, in multiple topologies built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications, as well as product families. Use the quote cart to request a quote on a specific design. When considering a particular family of parts, use Filter Wizard (a link button will be provided when appropriate) to determine a specific part number within the given family.

FC Series - Filter in Connector

Custom Solutions for Bandpass, Lowpass, Highpass,
and Notch Responses
Compact and Rigid - Filter Resides in an SMA Adaptor
External to Electronic Equipment and Easily Maintained
Power Handling 10 Watts CW

7N45-1920/X160-O/O - Bandreject Filter

Low Insertion Loss
Rugged Design for Field Testing
Temperature Stable
SMA Female Standard (N and TNC available)
Reject PCS Band 1850 - 1990 MHz (actual 1840 - 2000 MHz)

8N10-1090/X260-O/O - Bandreject Filter

Low Insertion Loss
Rugged Design for Military Applications
Temperature Stable
50 Watt Power Handling
SMA Female Standard (N and TNC available)

N Series - Notch (Bandreject) Filter

Covers the 30 MHz to 10 GHz Frequency Range
Low Passband Insertion Loss / High Notch Attenuation
3 dB BW Available from 0.5% to 5% fo
Low Ripple Chebyshev Design Response
Use Filter Wizard to Determine Part Numbers

N Series - 5N45-4265/H1600-O/O

Moderate Bandreject Filter with Extended Upper Passband
Protects receivers from newly deployed high-power transmitters.
High Performance / Small Size
Broad Operating Passband / Broad Rejection Band

4DRN40-422.75/X3-O/O - High Power Ceramic Bandreject Filter

Lower Insertion Loss
Power Handling Capabilities: 100 Watts CW
Ultimate return is 1.9 times Center Frequency
Various Military Applications

7DL35-1960/NX60 - Notch Filter

Ceramic Resonator PCS Band Reject Filter (6 mm)
Compact size: 1.75" x .58" x .27"
Surface Mount
High "Q" low insertion loss vs. mechanical size

Microminiature Cavity Notch - CAV-02271 (Microminiature Cavity Notch)

Frequencies in X, Ku, and K Bands (8 to 20GHz)
Bandwidths 1% to 10%
Passbands up to 2X Notch Frequency
Higher Qu/Lower Ins. Loss than Printed Technologies
Significantly Smaller Size than Waveguide

7SN10-7350/X2500-O/O - Notch Filter

Suspended Technology
SMA Connectors
Plated Thru Hole Board
Left Passband: 4.8 to 6.1 GHz
Right Passband: 8.6 to 9.9 GHz

6IN40-897.5/X265-O/O - Wideband Notch Filter

Uses elliptic response lumped element design techniques to enhance broadband communications, from DC to 765 MHz and 1030 to 3500 MHz, while blocking out wireless communication traffic. Configurations include surface mount, cables, or connectors. Small sizes and custom packages available.