Butterworth Filters
Refine signal, providing the flattest possible frequency in the passband, with a monotonic response.
See Also: Bessel Filters
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Product
Optical Filter Sets
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Our filter sets support a great range of fluorophores for microscopes and imaging systems. Patented design techniques drive some of the most spectrally sophisticated optical filters on the market. High transmission, steep edges, precise spectral edge placement, and optimized blocking combine for more reliable measurements. A wide selection of individual bandpass filters and dichroic beam-splitters support unique applications, and world-class manufacturing and cutting-edge metrology ensure consistent performance that always meets specifications.
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Tunable Filters
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Our Tunable Filters can be used in a wide range of applications from R & D to production. We have both Gaussian, using dielectric multilayer coatings, and Flat-Top, using gratings, filter profiles available.
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Narrow Band Filters (Single Octave)
POWER-POLE® Series
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The POWER-POLE® Series of tunable filters provides improved RF performance with increased power handling capability and the lowest insertion loss for a given bandwidth. The product line includes several standard designs in various frequencies to support almost any application. Approximate performance is summarized in the POWER-POLE Series Selection Guide.
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Product
Polarization Maintaining Band Pass Filter
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Zhongke Rayzer Optical Technology Co.,Ltd
Selects the thin film filter withgood performance to ensure the high quality opticalperformance, stability and reliability. It is uses to shieldnoise signal in EDFA and fiber laser system. It has thecharacteristics of high isolation, low insertion loss, highreturn loss and high power.
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Product
Power Capacitors with Protection Filter
CPFVF / CPMVF
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Lifasa - International Capacitors, SA
The capacitors of the CPFVF and CPMVF series are formed by a power capacitor, an antiarmonic protection reactance and fuse or magnetothermic protection. These capacitors are specially designed for the fixed compensation of transformers in networks with a high level of harmonics.
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Product
3U Louvered Plastic Grille with Filter
GP-319
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3U high louvered plastic grille with filter is made of polycarbonate resin.
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Broadcast Filters UHF
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RFS Waveguide UHF filters are now 4th generation products designed for global combining and filtering applications associated with DTV and analog television transmissions.
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Filter Test System
DU7216/7218
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Delta United Instrument Co., Ltd.
Inductance, Q factor, Leakage Inductance, AC Resistance, Capacitance, DC Resistance, Balance,Turn ratio, Open/Short check
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Product
Automatic Battery with Filters with Standard Contactors
BATLVF120
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Lifasa - International Capacitors, SA
Accessories: Differential protection
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Product
Mid-Range Gas Filter Correlation CO Analyzer
Model T300M
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Teledyne Advanced Pollution Instrumentation
The Model T300M CO analyzer measures low to mid ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.
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Product
Inclined Manometer Air Filter Gages
250-AF
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Dwyer Durablock Series 250-AF Gages are precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to .0002" to assure life long accuracy.
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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.
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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
EMC Filter Synthesis Tool
EFsyn
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EMC Filter Synthesis is a software tool for simulation and design of EMC filters. The new approach of this filter synthesis tool is based on simulating with the real values of the EMC filter components. Due to this, the EMC simulation considers the parasitics of the components.
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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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Product
Ultra-Low Noise Filter, 42 V / 105 MA, 50 Ω
N1298B
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The N1298 Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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Product
Anechoic Chamber Filters
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RF leakage through Ethernet and USB cables can destroy even the best RF enclosures and chambers. The need for filtering in the ever congested RF environment requires special filters that can pass USB 2.0 and 10/100/1000 Mbps Ethernet signals and filter out unwanted higher frequencies such as cellular and WiFi. The Adaura Technologies USB/Gigabit Filters provide one GigE and one USB 2.0 pass-through connections while filtering out other RF up to 8GHz. It has a small form factor to allow easy installation. It is a most cost effective solution for a clean chamber set up. In a typical chamber, WiFi signals are reduced to <-100dBm with this filter installed.
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Broadcast Filters VHF DAB
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The filters offer a compact and flexible solution for both transmitter mask filtering and digital RF channel combining. The DAB filter range is founded on RFS' world-leading RF combining technology and utilizes a similar platform of components to the company's VHF Band III;digital television combiners. DAB filters can beincorporated within transmitters to provide critical mask filtering of the digital RF signal, in keepingwith global DAB standards. When used as the key components of a balanced DAB combiner, thefilters can achieve both critical transmitter masking and adjacent channel combining simultaneously,eliminating the need for additional filters within the transmitter.
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Harmonic Filters
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ENTES Harmonic Filter Reactors are used in serial connection with capacitor banks in power factor correction units. By using these types of detuned reactors it is possible to increase the capacitor impedance against harmonic currents and to keep the resonance frequency under the frequencies in which main harmonic currents occur by shifting the resonance frequency.
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Filters and Multiplexers
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CAES offers an extensive line of RF filters and multiplexers designed and manufactured using our internal capabilities in machining and component and substrate fabrication.These heritage processes have proven flight pedigree in space, on board Gen 5 aircraft and shipboard platforms. CAES' proprietary plating processes enables industry leading high-Q, low l
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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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Low-PIM, Low-Power Filter Solutions for Monitoring Broadband Emissions
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Bandpass/Bandstop, Notch, and HighpassCompact Design for Rack Mounting of Several BandsSuitable for Monitoring Emissions from Semiconductors,TX/RX Chipsets, SAW/BAW Filters, Cell Phones,Printers, PDA’s, etc.
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Product
Gas Filter Correlation CO Analyzer
Model T300U
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Teledyne Advanced Pollution Instrumentation
The Model T300U Trace-level CO analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. Using IR absorption with a Gas Filter Correlation Wheel, the T300U is designed to allow ultra-sensitive CO measurements while still meeting the requirements for use as a US EPA compliance analyzer.The optical bench is enclosed in a temperature controlled oven, dramatically decreasing instrument noise and drift. The objective and field mirrors in the sample cell are gold plated to maximize signal to noise performance, while a temperature-controlled Nafion dryer on the inlet minimizes water interference caused by ambient humidity changes. Periodically, the T300U seamlessly corrects its baseline by routing the sample through a heated catalytic CO scrubber. This Auto Reference function corrects zero drift and reduces the effect of interferences.
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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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Filtered DC Interface Module
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DC modules for RF Test Enclosures eliminate conducted and radiated interference, while providing a source of DC power.
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Tunable Filters from Stock
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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 desired signals while rejecting interfering signals. Mechanically-tuned, high Q cavity filters typically allow center frequency to be tuned over at least one octave.
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Multi-channel low-pass filter board
AAF-2
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The AAF-2 is a multi-channel low-pass filter board designed for use in front of A/D converters with resolution up to 16-bits. It is ideal for filtering applications in sound and vibration testing, ultrasonics, acoustics, structural analysis, industrial, test, scientific and laboratory data collection and applied mechanical applications in electronics, aerospace, field research, automotive, and process control industries.
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Product
Low Pass and Bandpass SMA Coaxial Filters
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Fairview Microwave’s bandpass filters were developed for use in various applications including GPS, ISM, RFID and Wi-Fi systems and operate in several bands, some as low as 824 MHz and some as high as 5.875 GHz. Fairview’s low pass filters allow for tailoring of a test setup for a specific application and support upper band edges of 100, 225, 400, 1000, 2000 and 3000 MHz. All of these bandpass filters and low pass filters feature female SMA connectors.
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Product
Ultralow Power SD Video Filter With Load Detection
ADA4431-1
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The ADA4431-1 is a fully integrated video reconstruction filter that combines excellent video specifications with low power consumption, making it ideal for portable video filtering applications. The ADA4431-1 is able to detect whether a video load is present at the output, powering down the device when the load is disconnected.
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Product
16-Channel Anti-Alias Low-Pass Filter Card
AAF-16
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The AAF-16 is a 16-channel anti-alias low-pass filter card series for front-end signal conditioning in PC-based data acquisition systems.
