Active Filters
Require power to operate, using active devices and passive components in a frequency-selective network, only passing certain frequencies.
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Active Filter
J2190A
The J2190A active filter presents a high impedance (approximately 150kOhms) minimizing the loading of the circuit being tested. The output impedance is 50 Ohms allowing low noise coaxial connections to all typical test equipment. The 0.1Hz-10Hz noise band is common for opamp measurements, voltage regulators and voltage references. Many application notes offer schematics of such a filter for test purposes. An engineer’s time is much too valuable to be spent building test equipment. We have created a 4th order high pass and 4th order low pass filter with an optimally flat response and 0dB gain. Additional filters can be cascaded for even sharper cutoff.
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Wideband Active Filters
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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Sine Filters
Sine Wave Output Filter Modules provide satisfactorily smoothed sinusoidal waveform with low residual ripple form square waveform with high voltage spikes, present at the output of motor drives.
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Highpass Filters
K&L Microwave provides highpass 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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Filter Products
Although a primary building block for duplexers, multicouplers and preselectors, these cavities filters can be used individually or cascaded together to prevent interference or system clean up. Our cavity filter product line consists of four model types.
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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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Highpass Filters
Frequency range of this band pass filter is 1,000 MHz to 2.5 GHz and the passband is 1.5 GHz. PE8715 highpass filter is one of over 40,000 RF microwave and millimeter wave components supplied by Pasternack. Our 5 section highpass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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Filters and Compiners
Combine four bands to a common line Multiple broadband configurations, including AWS High power handling with low IM and insertion loss AISG 2.0 compliant
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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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Active Differential Probe
DF-600
The DF-600 Differential Active Probe is a high input impedance and low input capacitance probe. It also supports extremely high frequency bandwidth, and high voltage input. It is designed using three OP amps, namely two FET buffer OP amps and a low offset OP amp. Therefore, even with long-term operations, the measured voltage will not drift. The voltage offset always approach 0 volts. (USB power supply should be 5V ±2%). The following diagram shows the circuit of DF-600.
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Optical Active Module
UPM (Universal SFP-Typed Power checker Module) provide very high productivity for power checking work on high density fiber optic systems and devices for FTTH, CWDM-PON and local network systems. UPM can measure optical power intensity.
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Active Optics
Radiall designs and manufactures end-to-end optical links for massive data transfers in harsh environments.
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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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Active Noise Cancellation
ams analog and digital Active Noise Cancellation (ANC) solutions deliver class leading ambient noise reduction, significantly improving sound quality for portable consumer devices.
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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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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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Active Probe
This probe is designed to help auto-technicians in troubleshooting electrical circuits. Apart from using the normal multi-tester, this probe can be used in conjunction with it by providing additional functions to assist in diagnosing electrical or components faults or failures in the vehicle.
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Active Scanning Technology
ZEISS invented scanning in response to the drawbacks of single-point measurement nearly 50 years ago. This game-changing development enables the capture of thousands of data points within just a few seconds for truly reliable tactile quality assurance. It also saves time and money by delivering the high throughput and accurate results that are vital for manufacturing.
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Signal Conditioning and Filtering
MSXB 067
The MSXB 067 Signal Conditioning Expansion Board provides analog signal conditioning for strain gauges, load cells, RTDs, and other resistive sensors. MSXB 067 provides a flexible interface for quarter-bridge, half-bridge, and full-bridge sensors, with two to six wires for each sensor, with or without voltage sense feedback. A small daughterboard supports user-supplied bridge completion resistors.
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Capacitor for AC Filtering
PECA4 (690V)
Lifasa - International Capacitors, SA
These capacitors are especially suitable for applications where high levels of AC voltage are required. The design of this series has been optimized for the manufacture of high performance AC filters for compensation equipment with high pollution such as UPS or wind turbines.
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Digital Noise Filter
DSP-599zx
The DSP-599zx, with highly aclaimed digital noise filters, is part of the latest generation Timewave DSP filters. Incorporating the newest high speed CPU, the extra power gives the user unparalleled features and field upgradeability for the future. The new LCD display, pushbuttons, and Visible Memory let you see the exact settings of the filter. The optical encoders give the operator continuous tuning of the filters.
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Antenna, Active Loop
EM-6869 | 9 KHz – 50 MHz
The Electro-Metrics EM-6869 Active Loop Antenna is used with any receiver or spectrum analyzer with 50 ohm input and covers the frequency range of 9 kHz to 50 MHz.
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Band Pass Filter
PA72BPF
The PA72BPF daughter board is an additional filter board. It typically contains two selectable differential 3rd order elliptic band pass filters. These filter modules are tailored by Applicos to the customers’ requirements. The filters can be used to filter the output signal of the generator daughter boards to achieve an even better distortion and noise suppression.
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Filter Design Software
QuickFil
QuickFil is a software for designing passive electronic filters. The result is an optimized circuit of inductors (L)and capacitors
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Active Air Speed Transmitters
HD2903T / HD29V3T
Active air speed transmitters for ducts. Air speed, air speed and temperature, air speed, temperature and relative humidity. Analog output 4…20mA or 0…10VDC. Several Probes type lenghts available.
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Filters
In order to minimize filter roll-off, we start with a quality, highly polished substrate and apply layers of metallization within tight tolerances. Our highly anisotropic ion beam etching process enables us to produce features down to 10 microns. Furthermore, the milling process yields a high consistency from circuit to circuit meaning that whether we produce 1 or 100,000 filters, each one will have consistent filter roll-off characteristics.
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Components - Active Multipliers (FDA)
FDA Series
Farran offers a range of broadband varistor multipliers based on planar GaAs Schottky diodes. All devices are fixed-tuned and operate without bias. They offer high efficiency and full waveguide band coverage
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Filters & Switch Filter Banks
PMI offers the highest quality filters, switch filter banks, filter assemblies, diplexers, multiplexers for industrial and military applications in the frequency range of DC to 40 GHz. All PMI’s Switch Filter Banks use PMI’s proprietary Solid-state Switch designs, which offer high speed and improved performance. While there are many standard models, PMI can design and build to meet your specifications.
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Filters
High performance and high quality. Mercury Systems' filter products utilize the latest in filter technology and are supported by the Mercury commitment to quality and innovation. With experience manufacturing space-quality hardware, Mercury has developed the capability for reliability to be built-in from the first design phase. With state-of-the art modeling software and an on-site machine shop, Mercury Systems is ready deliver a standard product or custom design.
