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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Gas Filters
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WITT gas filters enable the finest filtering of impurities in technical gases such as acetylene, argon., oxygen, hydrogen, methane, carbon dioxide, helium, compressed air and ethylene. They thus protect downstream equipment and systems. Some gas filters are also referred to as gas cleaners.
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Filters
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Filters are components with a function that only extracts the required electrical signals, and removes the unnecessary electrical signals in electrical circuits. Murata offers a lineup of filters for various devices and functions.
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Active Filters
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Analog Devices’ specially designed active filter products can accommodate any frequency response (low-pass, high-pass, or band-pass) and a wide range of frequencies. Our line of continuous time and switched capacitor filters provides simple, flexible frequency discrimination solutions.
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RF Filters
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Raymond RF offers a complete line of RF filters ranging from 0.4A to 600A in both stand-alone and cabinet-mounted configurations for our QuietBoxes and Anechoic Chambers. Both styles of filters can be supplied with NPT pipe nipples and flange nuts for mounting directly on a QuietBox or Anechoic Chamber. Alternately, both styles of filters can be remotely mounted with shielded conduit running between the clean end of the filter and the QuietBox or Anechoic Chamber.
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dv/dt Filters
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dV/dT Output Filter Modules effectively protect motors against these high voltage spikes due to the use of motor cables between IGBT based motor drives and motors.
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Notch Filters
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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.
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RF Filters
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RF Filters block unwanted frequencies when testing electronic devices for emissions during EMC testing. They attenuate unwanted frequencies and allow the desired signals through. The RF filters isolate the device under test from external RF noise, this increases the reliability and accuracy of the EMC testing by preventing out-of-band noise and harmonics.
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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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Filters
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In order to minimize filter roll-off, we start with a quality, highly polished substrate and apply layers of metallization within tight tolerances. Our highly anisotropic ion beam etching process enables us to produce features down to 10 microns. Furthermore, the milling process yields a high consistency from circuit to circuit meaning that whether we produce 1 or 100,000 filters, each one will have consistent filter roll-off characteristics.
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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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SAW Filters & SAW Oscillators
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Rich heritage in small form factor, high-rel SAW filters and oscillators for today's military and space markets.
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Lowpass Filters
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Frequency range of this lowpass filter is DC to 100 MHz and the passband is 100 MHz. PE8719 lowpass filter is one of over 40,000 RF, microwave and millimeter wave components supplied by Pasternack. Our 5 section low pass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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Lowpass Filters
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K&L Microwave provides lowpass 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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Ground EMI Filters
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High-frequency signals on ground is never good news - it interferes with normal operation of equipment and creates electrical overstress (EOS). However it is easy to block propagation of EMI on ground by installing highly-effective ground EMI filtes in ground lines. Our unique patent-pending ground EMI filters provide very low impedance for DC and mains' power while effectively blocking propagation of high-frequency currents throughout facility or equipment ground. Ground filters meet safety standards, as well as ANSI/ESD S6.1 and ANSI/ESD S20.20.
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Semrock Optical Filters
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IDEX Health & Science offers a comprehensive line of Semrock optical filters. We set the standard in performance, quality, and reliability for the life science, point-of-care, clinical diagnostic, and analytical instrumentation industries. We have applied patented design techniques to create some of the most spectrally sophisticated optical filters on the market. Whether you select from our extensive catalog or we design a custom filter to your exact specifications, you can be confident of our uncompromising quality, reliability, and reproducible results.
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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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Wide Band Filters (multi-octave)
GEN3-ERF®
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The 3rd Generation Mini-ERF is a Reduced SWaP-C, 30 to 520 MHz tunable bandpass filter that features 50mW (typ.) power consumption, 1 Watt CW continuous power handling (7% BW), +40 dBm IIp3 (typ.), low insertion loss, and 4 dB typ. selectivity @ +/-10%, (7% filter). The GEN3-ERF’s are fully tuned and tested by Pole/Zero® for convenience and ease of use.
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Super-Notch YIG Band-Reject Filters
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YIG Tuned BRF patented technology gets closer to the ‘perfect notch'. Leveraging a long heritage of engineering innovation in YIG technologies, Teledyne RF & Microwave has developed a line of YIG Tuned Band-Reject Filters powered by patented new technology that overcomes many long-time design limitations inherent to YIG Band-Reject or “notch” filters. Our new line delivers major advancements and unequalled performance.
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Waveguide Bandpass Filters
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More details on PE-W28F001 WR-28 band pass wave guide filter can be found on the the waveguide bandpass filter design datasheet specifications up above. WR-28 waveguide bandpass filter from Pasternack is in stock now at our Irvine, CA facility. Our waveguide bandpass filter with WR-28 flanges is part of over 40,000 components for RF, microwave and millimeter wave applications in-stock which are available to ship same day worldwide.
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Active Filters
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Power electronic devices used to enhance power quality by actively compensating for current/voltage harmonics, reactive power, and voltage imbalances.
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Real Time Digital Filters
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Real Time Digital Filters can be used to filter a measured signal in real time. Filter characteristics can be defined by the user to meet the requirements of a specific application. Real-time digital filters are applied in the data conditioning phase. The filters are designed with a graphic design tool and then uploaded to the front-end for real-time calculation. The graphic design tool defines the filter performance vertical axis with a dB scale. The horizontal axis is defined as relative frequency.
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LCL Filters
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LCL Type Harmonic Filter Modules are used to filter out the input current harmonics of the Motor Drives having six-pulse diode/thyristor rectifiers, where harmonic current distortion exceeds the limits defined in standards.
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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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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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Bandwidth-Tunable Filters
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Through cascading a low-pass tunable edge filter with a long-pass tunable edge filter, one can achieve a new type of bandwidth-tunable filter whose passband width is variable while its center wavelength is still tunable. With such a device, you can
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"Standard" RF Low Pass Filters
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Coaxial Dynamics "Standard" line of RF Low Pass Filters offers several models to choose from at CW power ratings of 100 watts and 200 watts. These filters cover operating frequencies from 88 MHz to 400 MHz with less than 0.5 dB insertion loss and attenuation levels of 40, 50 and 60 dB.
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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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Broadcast Filters FM
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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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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.
