Tunable Filters
refine signal, allowing adjustment of the frequency of the pass and rejection bands.
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Product
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
Tunable Filters - Digitally Controlled
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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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Product
Electronically Tunable Filters
ETF
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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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Product
Wide Band Filters (multi-octave)
GEN3-ERF®
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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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Product
Tunable Filters
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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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Product
Multi-Function Test & Measurement System
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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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Product
Compact Digital Receiver
DCR822
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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 channel, and a unique phase-matching system. The extremely robust RF front ends of the receiver will hold up in severe RF environments and close carrier spacing, whether analog or digital. The DCR822 has a flexible output routing scheme, allowing a variety of applications including Talkback. And, a digital recorder at 24 bits, 48 kHz is included – and records up to 4 audio tracks on a front-mounted microSD card.
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Product
Mini Optical Spectrum Analyzer
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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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Product
High Frequency Tunable Bandpass Filters
CTB Series
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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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Product
Tunable Edge Filters
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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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Product
Tunable Optical Filters
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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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Product
Mini MEMS Tunable Filter With VOA
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The Optoplex mini tunable filter described is specifically designed for 100G tunable transceiver analog coherent optics (CFP2-ACO) application. The main purpose of this tunable filter is to suppress the noise to improve the sensitivity and OSNR performance.
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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
Tunable Filters
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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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Product
Signal Processor Board
MS 1532
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- 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- Operator-selectable RS-232, RS-485, or- RS-422 remote control- Viretx 5 FPGA based design (Two virtex for image processing)- LPC2468 ARM 7 Processor based design- MIL1553B and RS485 Interface- Two High speed 14 bit ADC (125MSPS) for I & Q Sampling- Direct sampling 2-30MHz- Audio CODEC- Conduction Cooled Board
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Product
Narrow Band Filters (Single Octave)
MINI-POLE® Series
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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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Product
Advanced IR Gas Analyzer For Process Monitoring
T-Series
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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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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.
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Tunable Notch Filters
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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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Product
MEMS Tunable Filter
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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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Wideband Active Filters
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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.
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Product
Narrow Band Filters (Single Octave)
MINI-SMT® Series
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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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Product
Wide Band Filters (multi-octave)
HF-ERF™ Series
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The HF-ERF™ is an internally switched 3‑band, low cost, miniature, high performance tunable filter. The HF-ERF™ was designed to have the best insertion loss and Q in the smallest package possible, 2.0” x 2.78” x 0.6”. All HF-ERF™ filters are fully tested and aligned by Pole/Zero for convenience and ease of use. Both SPI and Parallel control interfaces are available in one filter. Modified variants are available upon request.
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Tunable Filters from Stock
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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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Tunable Detectors
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Due to their spectral properties and robustness, pyroelectric detectors have proven themselves for many years in numerous applications in gas analysis, flame detection and spectroscopy. They enable the tuning of the optical filter over a defined spectral range by simply adjusting the control voltage. Instead of mounting filters to inspect specific areas of interest as is conventionally common, the detector with tunable Fabry-Pérot filters (FPF) can be used to monitor a broad spectral region continuously.
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Product
MultiGas™ TFS™ Gas Monitor For Multi-Compound Gas Analysis
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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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Product
Wide Band Filters (multi-octave)
NANO-ERF® Series
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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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Product
Precisive® 5 Application Specific Gas Analyzers
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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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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.





























