- Frequency Devices Inc.
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Bandpass Filter Components
Is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
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Wide Band Filters (multi-octave)
MINI-ERF® Series
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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Optical Channel Monitors
DiCon's Optical Channel Monitor is an advancedoptical subsystem, with integrated tunable optical filter, that automatically scans a DWDM network and reports the power of each channel. Network performance is monitored and reported in real time. Feedback from the Optical Channel Monitor can be used to optimize optical power levels, identify performance drift, and verify system functionality. An optional integrated optical switch allows up to 12 separate input ports to be monitored sequentially.
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Tunable Notch Filters
The Ranatec Tunable Notch Filters are critical tools for adaptation to stringent new ETSI/3GPP conformance test specifications for mobile device radio properties, that covers all sub-6 mobile bands and channel bandwidths for 2G/3G/4G/5G. Designed for formal conformance testing performed by accredited test houses, as well internal verification by mobile device vendors. A flexible and easy to use test automation platform to support almost any ambition level, tailored to your demands.
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Precisive® 5 Application Specific Gas Analyzers
The Precisive® Gas Analyzer is a real-time gas analyzer based on MKS' unique Tunable Filter Spectroscopy (TFS™) platform. The Precisive suite of products are calibrated for the measurement of a wide range of gases across multiple process industries. The real-time, continuous measurement capability provides immediate analysis ensuring control of critical process parameters.
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Multi-Function Test & Measurement System
Optoplex’s Multifunction Test and Measurement System (TM100 Series) is designed to provide a flexible and cost effective optical test and measurement solution, particularly for manufacturing lines. The mainframe can be mounted in 19” rack or stationed on desk-top for ease of use. There are many selections of the pluggable modules, from tunable laser, optical spectrum analyzer, EDFA, power meter, ASE light source, optical tunable filter, optical performance monitor, …, etc.
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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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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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Tunable Filters - Digitally Controlled
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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Tunable Optical Filters
DiCon's MEMS tunable optical filter offers many advantages over a traditional tunable optical filter; increased accuracy & resolution, a faster tuning speed, as well as a durability that will last for over a billion tuning cycles, all in a compact package. Options are available for either 100 GHz or 50 GHz channel spacing as well as operation in either the O-band, C-band or L-band wavelength ranges.
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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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Module (Venue 2)
VRT2
Up to six VRT2 modules may be installed per each 1RU Venue 2 receiver frame. Each module supports up to 3072 tunable frequencies across a 75 MHz range (three standard Lectrosonics blocks), matching the tuning ranges of SSM, LT and LMb "large bandwidth" transmitters. VRT2 modules incorporate Lectrosonics’ new IQ dynamic tracking filters, which accommodate a wide range of transmitter RF power levels while also enabling extremely tight channel spacing—critical features as the available RF spectrum continues to shrink.
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MEMS Tunable Filter
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.
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Wide Band Filters (multi-octave)
NANO-ERF® Series
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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Narrow Band Filters (Single Octave)
MINI-POLE® Series
The MINI-POLE® Series of tunable filters is optimized for size, RF power handling, low distortion, and exceptional selectivity. The product line includes several standard designs in various bands to support a myriad of applications. Approximate performance is summarized in the MINI-POLE Series Selection Guide.
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Advanced IR Gas Analyzer For Process Monitoring
T-Series
T-Series Inline Gas Analyzer improves gas measurement accuracy over the traditional non-dispersive infrared (NDIR) analyzers using Tunable Filter Spectroscopy (TFS™), a spectroscopic scanning technique capable of generating slices of spectra in the infrared region. Each scan produces an absorption spectrum which is used to identify compounds and provide concentration values. TFS technology improves gas identification accuracy and selectivity by subtracting out spectra from interferent gases within the same infrared regions. This spectral processing capability also provides multi-component measurement.
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Signal Processor Board
MS 1532
- Frequency coverage from 5 kHz to 30 MHz in 1-Hz steps- High dynamic range: +30 dBm 3rd-order intercept typical- Digital filtering provides 58 IFBWs from 56 Hz to 8.0 kHz with exceptional shape factors- AM, Synchronous AM, FM, CW, USB, LSB & ISB detection modes standard- Tunable notch filter- Fast, flexible scanning with 100 memory channels- Large readable LED displays & user-friendly controls- Noise blanking & pass band tuning- Internal switchable preamplifier & attenuator- Ope...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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Narrow Band Filters (Single Octave)
MAXI-POLE® Series
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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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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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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Mini Optical Spectrum Analyzer
Shenzhen Golight Technology Co.,Ltd
Mini OSA is based on MEMS tunable filter and high precision photoelectric control unit and detection unit. Its measurement precision is superior to the traditional OSA in C-band and O-band. And built-in USB communication interface is easy for system integration and SDK.
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Tunable Filter Spectrometers
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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Tunable Non-Reflective Band-Reject Filter (700MHz-1GHz)
SPCL-00597
This device is placed after the DUT to protect the Spectrum Analyzer from high-power fundamentals and provide harmonic measurements. The non-reflective functionality prevents energy from bouncing back to the DUT and raising the noise floor level.Broadband matching improves dynamic range and reducesmeasurement uncertainty.
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MultiGas™ TFS™ Gas Monitor For Multi-Compound Gas Analysis
The MultiGas™ TFS™ Monitor is an online, multi-compound, trace gas monitoring system in a stand-alone 19-inch rack enclosure. It uses an innovative tunable filter spectroscopy technology enabling high selectivity and stability measurement. Low detection limit (sub-ppm levels for most gases) is achieved through the use of high throughput optics coupled with a long-path gas cell and a high sensitivity detector.
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Electronically Tunable Filters
ETF
Radar. Communications. EW/SIGINT. Frequency agile channelization. Frequency agile noise rejection filter. Local oscillator tracking filter. Controlled bandwidth and center frequency noise source.
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Wide Band Filters (multi-octave)
GEN3-ERF®
The 3rd Generation Mini-ERF is a Reduced SWaP-C, 30 to 520 MHz tunable bandpass filter that features 50mW (typ.) power consumption, 1 Watt CW continuous power handling (7% BW), +40 dBm IIp3 (typ.), low insertion loss, and 4 dB typ. selectivity @ +/-10%, (7% filter). The GEN3-ERF’s are fully tuned and tested by Pole/Zero® for convenience and ease of use.
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Low-Pass Filters
Low-Pass Filters from Analog Devices are specifically designed to reject higher frequency noise and unwanted signals while allowing desired signals to pass through. Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) devices preconfigured for low-pass filtering. These integrated low pass filters feature a wide range of cutoff frequencies and response characteristics.
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Compact Digital Receiver
DCR822
The DCR822 compact 2-channel digital receiver with analog and digital audio outputs utilizes the Lectrosonics signature digital architecture with remarkable audio quality and ultra-low latency. The receiver includes an extended operating range rivaling the best analog and Digital Hybrid Wireless® systems with continuously tunable tracking filters covering 470.100 - 614.375 MHz. The innovative Vector Diversity technology raises the bar for digital transmission integrity with two RF front ends per...show more -
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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).
