- Frequency Devices Inc.
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High-Pass Filters
is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency.
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2-Port Optical Tunable Filter
Optoplex's Tunable Optical Filter, also known as Optical Tunable Filter or Tunable Bandpass Filter, is an integrated module, consisting of micro optics and electronics. 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). The selected channel can be varied (tuned) within the operating wavelength (frequency) range by a remote command sent through the built-in control PCB and firmware.
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MEGA-POLE® Series
MEGA-POLE™
The MEGA-POLE filter series covers the standard frequency bands within the 30 to 450 MHz range. This new filter series provides excellent selectivity while maintaining very low insertion loss. The product line also has exceptional RF power handling capability with a high third order intercept point. The MEGA-POLE filter series can be used for transmitter applications to reduce power amplifier noise, harmonics and intermodulation products, to provide bi-directional filtering directly at a transceiver’s antenna port, or other applications requiring extremely linear, high power RF bandpass filtering. It has been designed for rugged military environments per MIL-STD-810.
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Single Channel USB Programmable Band-Pass Filter
USBPBP-S1
The USBPBP-S1 stand alone USB controllable module provides a single channel of high and low-pass filtering and high-quality instrumentation amplifier for front-end signal conditioning compatible with all popular A/D converter devices. The USBPBP-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 USBPBP-S1 will remember all of the...show more -
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Narrow Band Filters (Single Octave)
MINI-SMT® Series
The new MINI-SMT™ tunable filter advances our popular MINI-POLE® Series by providing Surface Mount (SMT) capability along with the field proven RF power handling, low distortion and exceptional selectivity performance of our MINI-POLE® filters. MINI-SMT™ bandpass options are available from 700 MHz to 3 GHz.
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Wavelength Meter
S-107
Wavelength meter slot module of FOTS system offers two main functions of an accurate wavelength meter and a precise tunable band-pass filter. This accurate instrument, which is based on an internal tunable filter, acts as an optical spectrum analyzer or a wavelength meter as well as a low insertion loss tunable filter. The built-in tunable filter of the module is precisely tuned in C-band and L-band optical communication window by using both electronic and optical controlling methods. User can choose the function of this module depending on his or her applications.
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Bandpass Filters
K&L Microwave provides bandpass 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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Precision Low-Loss Multiplexers
Maury’s line of diplexers (DP-series) and triplexers (TP-series) are designed for applications which require combining/ splitting signals at or around harmonic frequencies (nFo) and are connectorized for design-in and test and measurement applications.DP-series diplexers are designed using low-pass and high-pass filters and pass bias between the low-frequency (or Fo) port and the common (or DUT) port.TP-series triplexers are designed using low-pass, bandpass and high-pass filters and pass bias b...show more -
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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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Passive Components
Ducommun millimeter wave products include various passive components including multi-hole directional couplers (PCM), crossguide couplers (PCC), magic tees (PCT), coax power dividers (PPD), bandpass, low pass and high pass filters (PFB, PFL and PFH), waveguide diplexers (PDC), waveguide transitions (PRC and PTW), waveguide to coax adapters (PTC) and waveguide components (PWS, PWE, PWH, PWM and PWT). These passive components cover frequency range from 8.2 to 110 GHz and feature high performance and low cost.
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Passive Component Integration
Integrate passive optical components of your choice such as WDM couplers, splitters, band-pass filters, PM beamsplitters and circulators. PXIe and benchtop models support SMF, MMF and PMF.
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Waveguides
Waveguides from Fairview Microwave consist of coaxial adapters, bandpass filters, bends, flexible waveguide cables, waveguide gain horns, sections and terminations. Fairview waveguides are available in standard sizes from WR-430 through WR-15 depending on type of waveguide product, which encompasses frequencies from 1.7 GHz to 75 GHz.
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Diplexers
ISM and RFID bandpass filter PE8700 from Pasternack is part of our extensive in-stock RF components for sale. Our ISM and RFID band pass filter is manufactured with SMA connectors that are female and in a 4 section design. This 4 section SMA bandpass filter for ISM and RFID has an insertion loss of 1.500 dB and a maximum power of 5 Watts.
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Passive Component Integration - MATRIQ
The Passive is a highly customizable benchtop accessory that can integrate the passive components of your choice for convenient storage and integration into your test set up.We can customize the Passive module with a wide range of passive components: WDM couplers, splitters, circulators, band-pass filters, PM beamsplitters, MUX, DeMUX and more.Our spec sheet contains a selection of popular configurations.Please contact us to discuss your specific requirements at sales@quantifiphotonics.com.
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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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0.5-18GHz Switch Multiplexer
SA004
Teledyne Defence & Space’s (TDS) patented designs have produced many different types of filters incorporating switches. These are all generally wideband for Electronic Warfare applications and enable the control of the frequency spectrum into any given system. These units, also known as Switch Multiplexers, are configured with a single or multiple inputs to single or multiple filtered outputs.As an example, the SA002 features 8 channels switchable over the frequency range 2-18 GHz while the ...show more -
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2-18GHz Switch Multiplexer
SA002
Teledyne Defence & Space’s (TDS) patented designs have produced many different types of filters incorporating switches. These are all generally wideband for Electronic Warfare applications and enable the control of the frequency spectrum into any given system. These units, also known as Switch Multiplexers, are configured with a single or multiple inputs to single or multiple filtered outputs.As an example, the SA002 features 8 channels switchable over the frequency range 2-18 GHz while the ...show more -
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Bandpass Filters
These bandpass filters utilize a suspended stripline design to obtain a very compact configuration. Applications include wideband receiver input preselection and output filtering of frequency multiplied RF power sources.
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Tunable Edge Filters
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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Miller 400A
44500
Rugged, lightweight case - safe to use on wet ground. Weatherproof, even with lid removed - IP67 rating for dust and water intrusion. Convenient case lid removal for ease of movement, with test leads attached, to new measurement locations. Resistance measurement range from 0.01Ω to 1.1MΩ . Resistance measurements are unaffected by any stray interference signals that may be present in the earth during readings, due to the use of narrow band-pass filters centered at 97Hz (the unit’s operating frequency). Runs on a set of C-cell alkaline batteries...no need to periodically recharge the unit or to plug it into a power source
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LTE/WiFi Test Box - Adjustable Bandwidth Tunable (700MHz - 6000MHz)
K&L has developed and is now shipping an LTE/WiFi testing solution digitally-controlled filtering system that can tune a bandpass filter anywhere in the 700 MHz to 6000 MHz range with continuously adjustable bandwidth. View latest video to see in operation.
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High-Power Tunable Filter
CB503
The need for tunable filter technology originates from the fact that high power communication systems and IED Jammer transmitters severely limit the use of tactical radio communication systems on the battlefield.This clash within the radio’s spectrum during tactical missions is often de-conflicted using fixed high Q, high power RF bandpass and bandstop filters installed prior to mission. This can limit operational effectiveness due to the potentially large number of fixed filters required within...show more -
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High Frequency Tunable Bandpass Filters
CTB Series
Tunable Ranges Up To 8 GHz. Bandwidths 1% to 5% of Tuned Center Frequency. Digital Control Offered in Various Inputs, including GPIB (standard), RS-232, RS-422, and USB. Custom Interfaces Available.
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Broadcast Filters VHF TV
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.
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Spectrum Marker Generator
NSG-2
National RF, Inc. is pleased to announce the production of a new device, the Type NSG-2 Spectrum Marker Generator. The generator is intended to be used with either spectrum analyzers or communications receivers to mark specific frequency intervals in the RF spectrum. When used with receivers, it is essentially a frequency calibrator, thus making it attractive for use with vintage receivers with analog dials. The NSG-2 provides a leveled amplitude output over nearly 100 MHz of RF spectrum, thus m...show more -
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OEM Raman Miniature Probes
- Minimum Range: 210cm-1, up to 4000 cm-1 however limited by spectrometer range- Optical design: Bandpass and longpass filters in proprietary layout- Fiber coupling: FC connectors- Fibers: Typically 100µm single fiber for Laser Excitation, TBD for Signal Collection- Spot Size: 100-125µm on sample (**Other spot sizes on request)- Working Distance: 9 to 10mm- Dimensions: 106 x 21 x 33mm / 4.2 x 0.9 x 1.3mm
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Broadcast Filters FM
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.
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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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Filter Building Blocks
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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Reconfigurable Filter Bank
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 suppl...show more -
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RX Pre-Amplifier System
RAM-34
The RAM-34 is a complete pre-amplifier system designed primarily for the low bands 160M thru 40M. It has inputs for four receive antennas and internal 3-pole bandpass filters for 160M, 80M and 40M. In addition to the pre-amplifier, it has a step attenuator that togetherwith the amplifier stage provides gains from -20 dB to +20 dB in 5 dB steps. This allows equalizing the signal levels between the antenna inputs. Gain settings are memorized for each antenna on each band. Different types of receive antennas have different signal levels and the gain memories eliminate the need to adjust the receiver or pre-amplifier when switching between the antennas.
