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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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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"Standard" RF Low Pass Filters
Coaxial Dynamics "Standard" line of RF Low Pass Filters offers several models to choose from at CW power ratings of 100 watts and 200 watts. These filters cover operating frequencies from 88 MHz to 400 MHz with less than 0.5 dB insertion loss and attenuation levels of 40, 50 and 60 dB.
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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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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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Anechoic Chamber Filters
RF leakage through Ethernet and USB cables can destroy even the best RF enclosures and chambers. The need for filtering in the ever congested RF environment requires special filters that can pass USB 2.0 and 10/100/1000 Mbps Ethernet signals and filter out unwanted higher frequencies such as cellular and WiFi. The Adaura Technologies USB/Gigabit Filters provide one GigE and one USB 2.0 pass-through connections while filtering out other RF up to 8GHz. It has a small form factor to allow easy installation. It is a most cost effective solution for a clean chamber set up. In a typical chamber, WiFi signals are reduced to <-100dBm with this filter installed.
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Automatic Battery with Filters with Standard Contactors
BATLVF600
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensationof power factor in low voltage instalations.
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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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Wireless Filters
K&L Microwave offers a variety of wireless filters for the communications marketplace, 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.
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Lowpass Filters
Frequency range of this lowpass filter is DC to 100 MHz and the passband is 100 MHz. PE8719 lowpass filter is one of over 40,000 RF, microwave and millimeter wave components supplied by Pasternack. Our 5 section low pass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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SAW Filters & SAW Oscillators
Rich heritage in small form factor, high-rel SAW filters and oscillators for today's military and space markets.
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Narrow Band Filters (Single Octave)
POWER-POLE® Series
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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Band Pass Filters
High-Pass (HPF series), Low Pass (LPF series) and Band Pass (BPF series) Filters are available, providing desired skirt selectivity and rejection levels with minimum insertion loss in the pass band. The filters are offered in all standard waveguide bands covering 18 to 400 GHz depending on our possibility to fulfil the customers' requirements. Dimensions of filters depends on required specifications. .
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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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Notch Filters
Power-Pole Notch Series
POWER-POLE® Notch Filters offer improved performance and power handling over our MINI and MAXI Notch Filters.
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Co-Siting Filters and Combiners
*Multiplexers, Duplexers, Diplexers and Antenna Sharing Combiners*Enables multiple base stations to share a single antenna*Many of the units offer both High and Low band support*Ideal solutions for either ground based and tower based antenna sharing*Compact lightweight rugged construction
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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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Automatic Battery with Filters with Standard Contactors
BATLVF800
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation ofpower factor in low voltage instalations
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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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Optical Filters
Alnair Laboratories Corporation
The filter exhibits an ultra-sharp roll-off of 1500dB/nm(12dB/GHz), without compromising the flexibility ofbandwidth- and wavelength-tuning. Ideal for DWDMchannel selection and removing ASE noise.
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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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Automatic Battery with Filters with Standard Contactors
BATLVF1000
Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralizedcompensation of power factor in low voltage instalations.
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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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9 kHz Highpass Filter
TBHPF1-9KHZ
9 kHz Highpass Filter for protection of spectrum analyzer or EMI-receiver RF inputs against high amplitude subharmonics and residual 50 Hz voltage in conducted emission measurement set ups
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SWITCHABLE FILTER BANKS
AFS-12WB
Matrix Test Equipment Incorporated
Models AFS-12WB contain banks of Matrix Model FLT-1 filters. Each filter may be individually selected. The Model AFS-12WB retains the manual operation in addition to remote control through the GPIB IEEE-488 interface. Optional internal Post Amplifier PA-20-20 with a gain of 0, 17 and 32dB @ +5dBm max..
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Custom Detectors
Besides the described types Inphora can supply detector-filter combinations with parameters matching the customer's special requirement, with different sized housing, without housing. If the application determines the detector's spectral responsivity, we can achieve that with a filter designed exactly to the specifications. CCD cameras with unusual spectral sensitivity functions can be matched with filters to obtain CIE tristimulus response or photopic response. Similarly, photmultiplyers can be matched also with INPHORA filters. When determining parameters for a custom detector-filter combination several details have to be considered:
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Adapter/Nickel
WADP-NFSM
Warison provides wide range of wireless passive coaxial components, includes Adapters, Attenuators, Coaxial Cables Assemblies, DC Blocks, Filters, Isolators & Circulators, Probes & Terminations. With outstanding capability of development and design, Warison is able to custom the spec based on customer��s demand. All Warison��s products pass inspection and electronic performance test before shipping out. It is our principal to deliver the best solution to all our clients.
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Sound Level Meters & Noise Meter
Cirrus offers a range of Class 1 and Class 2 hand-held sound level meters and accessories to cover all noise measurement applications from simple noise tests to detailed noise analysis. Our range of Sound Level Meters and Noise Meters spans simple instruments that provide the measurement of Sound Level, Integrating-Averaging instruments that provide Leq and occupational noise functions as well as precision data logging sound level meters with 1:1 & 1:3 real time octave band filters and in-measurement audio recording.
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PSD Signal Processing Tool
SEEPOS
For most position measurement applications the SiTek SEEPOS system offers a complete and easy-to-use solution. High speed PSD electronics combined with digital signal processing and high speed USB data transfer gives a powerful measurement system. With its large dynamic range it can handle light powers from nW to mW from DC light sources as well as modulated light sources. All parameters, such as PSD bias voltage, amplifier gain, the use of analog and digital filters etc., are easily controlled from the included software and light spot position is continuously displayed both in XY and X-t, Y-t graphs. Optimized plot algorithms ensure that all data is visually seen on the screen even in full speed measurements. Included tools for data analysis and visualization simplify rapid scan through large data sets in order to find specific parts of interest.
