Filters
Electronic circuits which refine signal by blocking certain frequencies, while allowing other frequencies to pass.
See Also: Filter / Amplifiers, EMI Filters, Low Pass Filters, Programmable Filters, Attenuators
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Product
Notch Filters
MINI-POLE Notch Series
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MINI-POLE® Notch Filters are optimized for small physical size and low power consumption. Two standard package styles are available (PC-Mount and SMA).
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Product
Highpass Filters
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K&L Microwave provides highpass 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.
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Product
Tunable Filters
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K&L Microwave offers a variety of Tunable Filter Products to satisfy a broad range of filtering applications. Tunable Bandpass and Bandreject filters provide the best solution for pre-tuning the desired signals while rejecting the interfering signals. The method of tuning can be either mechanical via a tuning knob mounted on the front of the filter, or electro-mechanical via an optional remote digital interface such as GPIB, RS-232, RS-422 or BCD.
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Product
Tunable Bandpass Filters
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Bandpass Filters are available as narrow band filters or wideband filters, supporting bandwidths from .1% to 200%, in configurations of 2 to 18 sections. Filters are available in a Q range of 250 to 10,000.
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Product
Notch Filters
Maxi-Pole Notch Series
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MAXI-POLE® Notch Filters offer all of the same performance features as the MINI-POLE® Notch filters, with the advantage of an improved notch shape factor.
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Product
Filters and Compiners
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Combine four bands to a common line Multiple broadband configurations, including AWS High power handling with low IM and insertion loss AISG 2.0 compliant
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Product
Band Pass Filters
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*High power handling 200W with a wide range of bands available*Excellent Isolation with Low Intermodulation*High reliability of >500K Hours MTBF and multi-strike lightning protection*Support for 7-16 or 4.3-10 connectors and optional 19 inch rack mount kit*Designed and produced to ISO 9001:2008 certification standards for reliability and quality
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RF Filters
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Amphenol Procom has 40 years of experience in developing and producing high quality RF Low- and high-power Filters for professional radio systems, widely used in the Public Safety and Mission Critical radio TETRA networks in Europe. The comprehensive portfolio of Filter products from Amphenol Procom are designed by experienced engineers, and highly used in the HF-, VHF- and UHF radio frequency range.
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Product
Tunable Optical Filters
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DiCon's MEMS tunable optical filter offers many advantages over a traditional tunable optical filter; increased accuracy & resolution, a faster tuning speed, as well as a durability that will last for over a billion tuning cycles, all in a compact package. Options are available for either 100 GHz or 50 GHz channel spacing as well as operation in either the O-band, C-band or L-band wavelength ranges.
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Tunable Filters - Digitally Controlled
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K&L Microwave offers a variety of Tunable Filter Products to satisfy a broad range of filtering applications. Tunable Bandpass and Bandreject filters provide the best solution for pre-tuning the desired signals while rejecting the interfering signals. The method of tuning can be either mechanical via a tuning knob mounted on the front of the filter, or electro-mechanical via an optional remote digital interface such as GPIB, RS-232, RS-422, BCD, ARC171, ARC234, Ethernet, USB or "Thumbwheel" panel mount.
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Product
Filters
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High performance and high quality. Mercury Systems' filter products utilize the latest in filter technology and are supported by the Mercury commitment to quality and innovation. With experience manufacturing space-quality hardware, Mercury has developed the capability for reliability to be built-in from the first design phase. With state-of-the art modeling software and an on-site machine shop, Mercury Systems is ready deliver a standard product or custom design.
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Filters & Switch Filter Banks
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PMI offers the highest quality filters, switch filter banks, filter assemblies, diplexers, multiplexers for industrial and military applications in the frequency range of DC to 40 GHz. All PMI’s Switch Filter Banks use PMI’s proprietary Solid-state Switch designs, which offer high speed and improved performance. While there are many standard models, PMI can design and build to meet your specifications.
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EMI/EMC Filters And EMI Solutions
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Chengdu Mengsheng Electronics Co., Ltd.
DOREXS is a company specializing in the manufacture of EMI/EMC filters. For more than a decade, it has been committed to providing cost-effective EMI/EMC filters and EMI solutions for commercial, medical, military and industrial applications. We help your equipment gain recognition for its stable and reliable functions.
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Product
EMC & EMI Filters
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CTS is the leader in EMI/RFI filters and offers a diverse product line of standard as well as custom filters to suppress electromagnetic interference (EMI) / radio frequency interference (RFI), thereby providing customers with a wide range of electro-magnetic compatibility (EMC) solutions. Discover cutting-edge solutions for your electromagnetic compatibility needs with CTS EMC products. Our innovative range is engineered to deliver unparalleled performance, ensuring seamless connectivity and optimal functionality across diverse industries.
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Product
Highpass Filters
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Frequency range of this band pass filter is 1,000 MHz to 2.5 GHz and the passband is 1.5 GHz. PE8715 highpass filter is one of over 40,000 RF microwave and millimeter wave components supplied by Pasternack. Our 5 section highpass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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Product
Broadcast Filters VHF TV
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RFS bandpass filters are primarily used as part of multi-channel combiner facilities but can also be used to eliminate spurious emissions and increase isolation between co-sited services.
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Product
Automatic Batteries with Filters with Thyristors
BATLVFS400
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of powerfactor in low voltage instalations.
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Product
Mesh Filters From 0.9 To 15 THz
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Insight Product Company offers Mesh Filters from 0.9 to 15 THz
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Product
Tunable Notch Filters
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The Ranatec Tunable Notch Filters are critical tools for adaptation to stringent new ETSI/3GPP conformance test specifications for mobile device radio properties, that covers all sub-6 mobile bands and channel bandwidths for 2G/3G/4G/5G. Designed for formal conformance testing performed by accredited test houses, as well internal verification by mobile device vendors. A flexible and easy to use test automation platform to support almost any ambition level, tailored to your demands.
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Baseband Programmable VGA-Filters
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Analog Devices’ RF VGAs, IF VGAs, and variable gain control products offer the high performance needed for communications, instrumentation, and military designs. The portfolio includes continuous analog linear in dB products based on X-AMP® interpolation architectures and digital step controlled products providing as fine as 0.25 dB step and linear in volts digital control. Furthermore, ADI RF VGAs are highly integrated with digitally controlled multipole analog filters integrated on-chip as well as AGC circuits for automatic level control.
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Narrow Band Filters (Single Octave)
IMF™ Series
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The Integrated Microwave Filter or IMF™ Series introduces accelerated tuning speeds packed in a very small, lightweight filter, providing maximum sensetivity and improved system performance for cleansing your ESM environment. Designed for the military radar market, specifically Active Electronically Steered Arrays (AESA) Radars and Phased Array Radars but compliment a broad range of applications such as; Commercial, Tactical & Military Communications, RF Front Ends (RFFE’s), SATCOM-on-the-move (SOTM), along with Electronic Warfare & Radar applications.
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Band Pass Filters
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High-Pass (HPF series), Low Pass (LPF series) and Band Pass (BPF series) Filters are available, providing desired skirt selectivity and rejection levels with minimum insertion loss in the pass band. The filters are offered in all standard waveguide bands covering 18 to 400 GHz depending on our possibility to fulfil the customers' requirements. Dimensions of filters depends on required specifications. .
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Product
AC Power Line EMI Filters
CleanSweep®
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CleanSweep® filters block EMI on power lines (both common and differential modes) and, uniquely, in ground, from reaching sensitive equipment. They also reduce EMI "backflow" from a "noisy" source that otherwise would end up on your AC power network.
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Wireless Filters
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K&L Microwave offers a variety of wireless filters for the communications marketplace, built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications. Use the quote cart to request a quote on an existing design or to provide specifications for a custom design.
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Product
Notch Filters
Power-Pole Notch Series
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POWER-POLE® Notch Filters offer improved performance and power handling over our MINI and MAXI Notch Filters.
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Product
Automatic Batteries with Filters with Thyristors
BATLVFS800
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of powerfactor in low voltage instalations.
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Product
RF Filters - Notch
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A specialized band-reject filter that blocks or significantly weakens a very narrow range of unwanted frequencies (the "notch") while letting all other desired frequencies pass through relatively unchanged.





























