EMI Filters
mitigate high-frequency noise. Also known as: RFI Filters
See Also: Filters, Filter / Amplifiers, Low Pass Filters, Programmable 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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Product
Narrow Band Filters (Single Octave)
MAXI-POLE® Series
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The MAXI-POLE® Series of tunable filters provides improved passband performance (reduced insertion loss for a given bandwidth) in a slightly larger package. The product line includes several standard designs in various frequencies to support almost any application. Approximate performance is summarized in the Maxi-Pole Series Selection Guide.
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Co-Siting Filters and Combiners
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*Multiplexers, Duplexers, Diplexers and Antenna Sharing Combiners*Enables multiple base stations to share a single antenna*Many of the units offer both High and Low band support*Ideal solutions for either ground based and tower based antenna sharing*Compact lightweight rugged construction
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Product
Mid-Range Gas Filter Correlation CO2 Analyzer
Model N360M
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Teledyne Advanced Pollution Instrumentation
The Model N360M measures carbon dioxide (CO2) by comparing infrared energy absorbed by a sample to that absorbed by a reference according to the Beer-Lambert law.The N360M uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO2 known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO2 in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure. A nitrogen purge system is provided for the GFC wheel assembly to eliminate the effects of ambient CO2, if necessary.
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Product
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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Product
Single Channel USB Programmable High-Pass Filter
USBPHP-S1
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The USBPHP-S1 stand alone USB controllable module provides a single channel of high pass filtering and high-quality instrumentation amplifier for front-end signal conditioning compatible with all popular A/D converter devices. The USBPHP-S1 is powered with 9 to 12VDC so it can be connected to a battery voltage source or the supplied 115-220VAC adapter may be used for operation with wall power anywhere in the world. When programmed from the USB port, the USBPHP-S1 will remember all of the programmed properties between power cycles. Program once and operate as a stand- alone signal conditioner without having to reprogram for every use. This is perfect for turn-key applications. It's easy to connect the USBPHP-S1 into the data collection system. Input and output signals can be routed through BNC connection or using the detachable screw terminal connectors. Optional SMA type adapters are also available.
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EMI Products
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Sophisticated design, manufacture and assembly facilities at Oxley UK production center, include a ceramic production capability for discoidal, tubular, and multiway planar array capacitors, CNC machining, electro-plating, prototype model shop, tool room and dedicated test area.
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Product
Power Line EMI Adapters
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How much EMI noise is on your power lines indeed? How to assess the levels of noise and its properties when it is obviously a bad idea to connect your oscilloscope or a spectrum analyzer directly to your power lines?Our EMI interface adapters provide a barrier for high mains voltages but a straight passage for high-frequency signals so that you can connect your sensitive instrument to power lines for analysis and quantification. We offer plug-in and hand-held adapters which can measure both differential ("normal") and common-mode noise.
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Active Filter
J2190A
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The J2190A active filter presents a high impedance (approximately 150kOhms) minimizing the loading of the circuit being tested. The output impedance is 50 Ohms allowing low noise coaxial connections to all typical test equipment. The 0.1Hz-10Hz noise band is common for opamp measurements, voltage regulators and voltage references. Many application notes offer schematics of such a filter for test purposes. An engineer’s time is much too valuable to be spent building test equipment. We have created a 4th order high pass and 4th order low pass filter with an optimally flat response and 0dB gain. Additional filters can be cascaded for even sharper cutoff.
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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
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
EMI Receiver
KH3935
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Beijing KeHuan Century EMC Technology Co,.LTD
KH3935 type EMI test receiver interference test receiver is fully automatic, is EMI major tool for testing. The frequency range of the KH3935 receiver is from 9kHz to 30MHz , which satisfies the power line disturbance power test. After configuring the artificial power network, the power terminal disturbance voltage test can be performed. The machine has fast test speed, strong maneuverability, stable performance, Advantages such as convenient test data processing.
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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
Cell Fractionation Filter
CELLNETTA MZM1 Series
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Cell sorters, magnetic beads, and gravity separation are common cell fractionation methods. CELLNETTA uses the micron size differences of cells to enable conventionally difficult high-precision fractionation and simple cell separation using an innovative fractionation filter.
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Product
1 MHz Bandwidth Voltage Preamplifier with Bandpass Filter
EC6081 mk2 - preamplifier
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The EC6081 mk2 (VP2000) is a 1MHz bandwidth voltage preamplifier with bandpass filter that is designed for uses in conjunction with piezoelectric hydrophones. VP2000 offers excellent low-noise performance over the entire frequency range; and adjustable gain selection. A range of 12 high-pass and 12 low-pass filters are available, these allow ideal band pass filter settings.
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Product
Rack Module with Standard Contactors with Anti-Harmonic Filters
MODF Rack
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Lifasa - International Capacitors, SA
The MODF-RACK control units include, in a compact form, all the components necessary for the operation of a step of a capacitor bank with filters. MODF-RACK modules are divided into two basic blocks: power block and control block. The two blocks are mounted in a small frame to be installed in an electrical panel.
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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
Automated Filter Tester
8127
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The Automated Filter Tester 8127 is designed to comply with commercial respirator standards around the globe and has a proven track record of durability, reliability, and minimal maintenance, meeting the demanding requirements of manufacturing and quality control environments. Whether you are looking for a stand-alone tester to check a few filters per day or need to integrate your tester in an automated, high volume production line, CERTITEST AFT’s are up to the challenge
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Automatic Battery with Filters with Standard Contactors
BATLVF1200
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralizedcompensation of power factor in low voltage instalations
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Product
Capacitor for DC Filtering
FIL2
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Lifasa - International Capacitors, SA
FIL condensers are specially designed for use in direct current sources and their functions are to filter the alternating output ripple as well as protect the line from momentary spikes and sudden power surges.
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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
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
Automatic Battery with Filters with Standard Contactors
BATLVF1000
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralizedcompensation of power factor in low voltage instalations.
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Product
PXE EMI Test Receiver, 1 Hz to 44 GHz
N9048B
Receiver
Keysight's N9048B PXE is a standards-compliant EMI test receiver equipped with an RF pre-selector and LNA designs. Shorten your overall test time and easily perform gapless signal capture and analysis with real-time scan (RTS) capabilities.
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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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Product
Receiver, i2 MX, 22 Slot VTAC/SIM Insert, EMI
310130113
Receiver
Receiver, i2 MX, 22 Slot VTAC/SIM Insert, EMI.
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Product
Band Pass Filter
CA0094
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Filter, Passband 7~9GHz, VSWR 1.7 Max., Rejection DC-5.3GHz≥40dBc, 10.7-13GHz≥40dBc, SMD
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Filter Building Blocks
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Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) filter building blocks. These devices were designed to simplify the implementation of band-pass, high-pass, low-pass, notch, or all-pass filters using classical filter realizations (such as Butterworth, Cauer, Bessel, and Chebyshev).
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Product
15 Amp 120 VAC Filter and Surge Arrestor
AS-AC15
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- 15 amp 120VAC quad outlet for high power devices- Resettable circuit breaker protection, easy to use and reset- I EA standard input plug and #14 GA AC line cord for USA - standard interface- MOV surge arrestors included - for even more protection- High level of common mode and differential mode filtering digital noise and RF filtering eliminates- digital artifacts and RF interference - See chart- Front Panel Neon Blue AC ON indicator - just plain cool to look at, not too bright!- Double shielded box inside - for optimum filtering operation- Size 6W X 4H X 4 3/4 D in inches approx 3 lbs
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Product
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.
