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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Waveguide Bandpass Filters
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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Bandwidth-Tunable Filters
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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Broadcast Filters UHF
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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Tunable Filters
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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Notch Filters
Maxi-Pole Notch Series
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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Harmonic Filters
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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Lowpass Filters
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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Filters
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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Tunable Filters
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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Filters
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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Filters
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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Sine Filters
Sine Wave Output Filter Modules provide satisfactorily smoothed sinusoidal waveform with low residual ripple form square waveform with high voltage spikes, present at the output of motor drives.
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Tunable Filters from Stock
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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Automatic Batteries with Filters with Thyristors
BATLVFS800
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of powerfactor in low voltage instalations.
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RF Filters
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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Automatic Batteries with Filters with Thyristors
BATLVFS400
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of powerfactor in low voltage instalations.
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Filters & Switch Filter Banks
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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Ground EMI Filters
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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EMI/EMC Filters And EMI Solutions
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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RF & Microwave Filters
High performance filter solutions for defense, wireless telecom and space applications with an expertise in the integration of multiple and mixed topologies in a single unit that optimize system performance.
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Highpass Filters
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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Rack Module with Standard Contactors with Anti-Harmonic Filters
MODF Rack
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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Low Pass and Bandpass SMA Coaxial Filters
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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YIG Filters
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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Broadcast Filters VHF DAB
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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Notch Filters
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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Automatic Batteries with Filters with Thyristors
BATLVFS600
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations.
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Wide Band Filters (multi-octave)
ERF-5W™ Series (Single & Dual)
The new ERF-5W™ filter takes Pole/Zero’s MINI-ERF® technology to a higher level of RF power handling, with 5W (average) in-band power handling, and covering the entire military tactical radio tuning range of 30-520 MHz in one integrated package. This tunability is accomplished by the use of three poles of selectivity, multiple internal tunable filters along with high performance PIN diode RF band select switches. The tunable filters are designed to minimize size and power consumption, while maintaining high RF power handling and linearity characteristics. Serial control is accomplished via a standard Serial Peripheral Interface (SPI)-based bus.
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Narrow Band Filters (Single Octave)
IMF™ Series
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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Filters, Collectors, Separators, Purifiers
Parker's filters, separators and purifiers come in a variety of options and media and are used to filter out air or fluid contaminants in an array of industrial and commercial applications.





























