High-Pass Filters
Refine signal, allowing the transmission of signal above a specific corner frequency, while strongly attenuating the frequencies below.
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Product
Harmonic Filter Resistors
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Post Glover designs, builds and tests their harmonic filter resistors in accordance with applicable IEC and IEEE standards to guarantee their performance. With no two installations ever being the same, our experienced engineers develop the proper solution for your particular application and environment. Our low inductance designs are built using all stainless steel elements in corrosion resistant enclosures chosen for your unique specification. Request a quote for your custom harmonic filter resistor.
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Product
Programmable Anti-Alias Low-Pass Filter and Instrumentation Amplifier
USBPGF-S1
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Single Channel USB Programmable Anti-Alias Low-Pass Filter and Instrumentation Amplifier for Signal Conditioning in Data Acquisition Systems. Differential or single ended input. 10Vmax Signal Input and Output with input protection up to 40V. Software-programmable instrumentation amplifier gains of 1 to 1000.
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Product
Switch Filter Bank
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Corech Microwave’s Switch Filter Bank frequency covers DC to 50GHz, featured with multi-channels (4 to 8 channels), high power handling, and fast switching options. Pin Diode Based Switched Filter Banks provide the highest level of signal isolation, higher operating power levels, and lower insertion loss and achieve switching speeds of < 40 nanoseconds.
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Product
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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Product
Tunable Filter Spectrometers
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MKS Instruments' platform of innovative optical analyzers based on Tunable Filter Spectroscopy (TFS™) provides real-time gas analysis, while delivering customers a substantially lower total cost of ownership. TFS™ can be utilized from UV (Ultra-Violet) through IR (Infra-Red) spectral regions. MKS TFS™ sensor platforms have been on the market since 2008 with more than 2500 systems deployed.
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Product
Wide Band Filters (multi-octave)
MINI-ERF® Series
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The MINI-POLE® Extended Range Series of tunable filters was developed to address applications needing a small, surface mount package with wide tunability. This tunability is accomplished by the use of multiple internal tunable filters along with high performance PIN diode RF band select switches all contained in one housing. The tunable filters are designed to minimize size and power consumption while maintaining high RF power handling and linearity characteristics. Parallel or serial digital interface can be selected by a mode pin for ease of integration into your design.
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Product
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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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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Product
FPGA Impulse Response (FIR) Filter Fo Gage Digitizers
eXpert / Finite Impuls Response (FIR)
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The onboard FIR Filtering eXpert FPGA DSP feature is a powerful method for removing unwanted signal features (like noise) and emphasizing signal features of interest.
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Product
Tunable Edge Filters
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Tunable edge filter is a customized product. It usually belongs to 2-port optical tunable filter product platform. Instead of using narrow bandpass filter in the 2-port tunable optical filter, the tunable edge filter utilizes a low-pass or long-pass interference filter. By changing the incident angle of the light beam, the cut-off wavelength will be tuned. Standard Tunable edge filters support C-band or L-band wavelength range.
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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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Product
OX 774 F Filter Node
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- Two Output- Output Level: 85 dB- Filters 1550nm CATV wavelength- No interference of 1310/1490nm
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Product
Filtering Network TAPs
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Filtering network TAPs allow you to filter out the packets and traffic that is not needed by the tool to perform its function. Filtering ensures that monitoring ports do not become oversubscribed with unneeded data. Filtering TAPs are purpose-built hardware devices that let you see every bit, byte and packet.®
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Product
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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Product
Wide Band Filters (multi-octave)
NANO-ERF® Series
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The NANO-POLE® Extended Range Series of tunable filters was developed to address applications needing an extremely small surface-mount package with low power consumption. Wide tuning range is accomplished with careful design to minimize size and power consumption.
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Product
Dual Filter
Trig-TekTM 550D
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Two channels with variable high pass and low pass filters in a module 7" high x 2.6" wide
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Product
Third Harmonic Filter
HBF-T
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Lifasa - International Capacitors, SA
HBF-T filters are designed to block the 3rd harmonic, reducing the neutral currents in three-phase installations where there are installed harmonic generating loads connected between phase and neutral. It is basically passive filters based on a parallel combination of inductance and capacitor.
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Product
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
Automatic Batteries with Filters with Thyristors
BATLVFS1200
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations
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Product
HVDC Power Filter Characteristic Test Set
FT3000
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FT3000 Power Filter Characteristic Testing equipment has the functions of automatic sweep harmonic signal output, A-F and P-F characteristic measurement/display etc. It can perform HVDC Power Filter Testing and is mainly used in AC filter of DC convertor station, DC filter tuning characteristics test and parameter test of R, L and C. It is also used in electrified railway HV filter, passive power filter client and conventional AC substation reactive compensation device.
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Product
Particulate Filter Management System
PFS-ONE
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The highly precise weighing of emission particles has become increasingly important due to new legislative regulations such as Euro 6, WLTP, EPA 1066 or PM 10. PFS-ONE, the Particulate Filter Management System offers different weighing methods. This supports full compliance with current legislation in the automotive and environmental industry and also allows for flexibility of internal testing processes. The system covers the measurement, organization, tracking and control of particulate filter weighing. Built as a modular system, the PFS-ONE can be expanded from a stand-alone installation up to a fully integrated laboratory module and can be used for manual weighing or automated weighing via a robot.
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Product
Ultra-Low Range Gas Filter Correlation Carbon Monoxide Analyzer
Model T300U
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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.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300U comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Product
Fast Tuned Notch Filter
ES005 & ES006
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Teledyne Defence & Space’s (TDS) range of Fast Tuned Notch Filters (FTNF) have been designed to protect Electronic Support Measures (ESM) receivers from high duty cycle, frequency agile interference produced by on board (or cohort) combat radar systems. ESM sensors often need protection from high power nearby radars, and such signals can reduce receiver dynamic range.
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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
YIG Filters
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With a 30 year heritage developing leading YIG technologies, Teledyne RF & Microwave has unsurpassed capabilities as your single source for YIG filters. Teledyne has a large, self-contained YIG manufacturing and R&D infrastructure that ensures continuous YIG innovations, including the industry’s only YIG filter that “locks” to a desired signal.
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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
Preselectors and Switch Filter Banks
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Our preselectors and switch filter banks offer low noise figure, high dynamic range, state-of-the-art filter rejection with high channel-to-channel isolation front ends, realized in compact building blocks, designed in custom form factors. Applicable markets include: EW, missiles, radar, communications and space.
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Product
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.





























