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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


Showing results: 76 - 90 of 1081 items found.

  • Automated Filter Tester

    3140 - TSI Inc.

    Automated Filter Tester 3140 utilizes the same, proven, oil-aerosol generator technology found in Models 8127 and 8130. It produces oil aerosol without heat, so a variety of oils can be used. Two Condensation Particle Counters (CPCs) simultaneously count upstream and downstream particles. This enables quick, accurate, and repeatable measurements of filters with efficiencies as high as 99.999999% (eight 9’s), or penetrations down to 0.000001%.

  • Automated Filter Tester

    8127 - TSI Inc.

    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

  • Broadcast Filters UHF

    Radio Frequency Systems

    RFS Waveguide UHF filters are now 4th generation products designed for global combining and filtering applications associated with DTV and analog television transmissions.

  • Broadcast Filters FM

    Radio Frequency Systems

    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.

  • RF & Microwave Filters

    Spectrum Control

    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.

  • Harmonic Filter Resistors

    Post Glover

    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.

  • MEMS Tunable Filter

    Optoplex Corporation

    Optoplex’s MEMS Tunable Optical Filter is based on a patented micro-optic design with MEMS tuning technology. It is an integrated module consisting of a MEMS chip, micro-optics and control electronics and interface. When receiving a stream of optical signals of a plurality of wavelengths from the Input-Port (IN), the 2-port tunable optical filter directs a selected channel to the Output-Port (OUT). Wavelength (frequency) tuning is achieved by changing driving voltage applied to the MEMS chip, via the control electronics and the built-in firmware.

  • Individual Optical Filters

    Idex Health and Science

    Our comprehensive line of Semrock optical filters helps your design attain the best signal-to-noise ratios. Steep spectral edges maximize useable bandwidth, and high transmission or reflection captures the brightest images with best-in-class Flatness. Deep and extended blocking are optimized for your application, minimizing background and crosstalk while reducing cost. Select from the extensive catalog or go with a custom filter to your exact specifications, and remain confident of uncompromising quality, reliability, and reproducible results.

  • Ground EMI Filters

    OnFILTER, Inc.

    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.

  • Wideband Active Filters

    Analog Devices Inc.

    Analog Devices’ family of fixed and tunable wideband active filters operating up to 28 MHz bandwidth support a wide range of wireless communications, signal conditioning, and RFID applications. Single-channel and dual-channel options are available.

  • Switched Filter Banks

    K&L Microwave

    K&L Microwave provides Switched Filter Bank (SFB) products built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications. Use the quote cart to request a quote on an existing design or to provide specifications for a custom design.

  • Reconfigurable Filter Bank

    BSC Filters

    BSC have independently developed a fully reconfigurable adaptive filter solution, designed for fast & seamless switching into any of 256 filter states across the 2-18 GHz range.  Ideally suited to EW front-end preselection or protection, any combination of bandpass and bandstop states can be selected INTRODUCTION.  Each 2 GHz channel can be switched in (bandpass) and out (bandstop) of the signal path with a switching time of less than 100 ns. DC power and 8-bit TTL control is supplied through a standard 15-pin MDM connector. In the crowded spectrum of the future, front-end flexibility is of increasing importance. Not limited to 2-18 GHz or equal channel widths, the same core architecture may be used in more specific bands, for example at VHF/UHF frequencies. This makes the system equally as suited to EW as it is to Mil Comms applications, where sampling sensitivity or frequency-agile protocols respectively are key to system function.

  • Switched Filter Banks

    BSC Filters

    BSC provides full design and manufacture expertise in-house to offer high reliability mixed technology RF & Microwave modules such as Switched Filter Banks and typically covering from L band to X band.  Typical applications include: Electronic Intelligence (ELINT), Electronic Warfare (EW), Direction Finding Receivers (DF), Radio Preselector, and band segmentation.

  • Microwave Filters and Duplexers

    Cobham France SAS

    Cobham designs and manufactures a complete line of Microwave Filters and Duplexers from DC to 40GHz. Four main leading edge technologies are available : air cavity, ceramic, lumped element and waveguide. Our products are suitable for aerospace, defence electronics and commercial systems. The quality management system is ISO 9001-2000 certified in accordance with EN/AS/JISQ 9100 requirements.

  • Filters / Splitters / Detectors

    DiCon Fiberoptics, Inc.

    DiCon’s 100 GHz WDM is designed to multiplex and demultiplex signals in multi-wavelength systems based on the ITU 100 GHz grid. The component uses a thin film filter mounted between a pair of GRIN lens collimators. The 100 GHz WDM is housed in a compact, environmentally stable package that offers superior resistance to humidity and temperature and is suitable for mounting on a printed circuit board or within a module.

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