Noise Figure
delta of UUT noise to ideal.
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Noise Figure Analyzers
NFA Series
Optimize for noise figure using the NFA Series of high performance noise figure analyzers, which are designed to make fast, accurate, repeatable measurements. Key features include the simple user interface, graphical display, data storage, selectable bandwidths and on screen limit lines for pass/fail testing. With the NFA Series reliable measurements up to 40 GHz are now available in a single instrument.
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Noise Figure Measurements With Vector Correction
S95029B
The S95029B noise figure application enables high-accuracy noise figure and noise-power measurements of amplifiers, frequency converters, and mixers by using the Keysight vector-source-correction technique. Using a source-impedance tuner to remove the effects of imperfect system-source match, this technique produces higher accuracy results than Y-factor method and other cold-source implementations--especially for in-fixture, on-wafer, and automated-test environments.
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Full Band Noise Figure and Gain Test Extenders
STG-06-S1
Full band noise figure and gain test extenders are offered to extend noise and gain measuring capabilities up to higher millimeterwave frequency ranges. These extenders are designed to interface with noise and gain test systems that have an input IF of 10 MHz to 1.6 GHz, such as the industry standard Keysight 8970A/B, N8975A and Maury MT 2075B. The noise figure and gain test extenders include a high-performance, solid-state noise source (STZ series) and a full waveguide down converter (STC series), which consists of a Faraday isolator (STF series), full band mixer (SFB series), frequency multiplier, and IF amplifier. A frequency source with an output signal in the frequency range of 10 to 20 GHz is required as a local oscillator for the down converter. The noise source is automatically powered on and off by the noise figure meter.
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Noise Figure Analyzer, Multi-touch, 10 MHz to 26.5 GHz
N8975B
The N8975B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8975B.
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Noise Figure Measurements With Vector Correction
S97029B
The instrument’s standard receivers are used for noise figure measurements with the S97029B. An external preamplifier and filter(s) is required for devices with < 30 dB of excess noise (gain plus noise figure in dB)
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Noise Figure Analyzer, Multi-touch, 10 MHz to 7 GHz
N8974B
The N8974B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8974B.
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Preselectors and Switch Filter Banks
Our preselectors and switch filter banks offer low noise figure, high dynamic range, state-of-the-art filter rejection with high channel-to-channel isolation front ends, realized in compact building blocks, designed in custom form factors. Applicable markets include: EW, missiles, radar, communications and space.
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Block Down-Converter
RF Lambda’s block down-converters are used to convert higher frequencies down to IF. They can include front end amplifiers for lower noise figure and signal conditioning such as image rejection as required by the system.
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Low Noise Amplifiers
Our range of ITAR Free, Low Noise Amplifiers (LNAs) cover a variety of applications but are primarily suited to airborne, maritime and ground based radar systems. LNAs are primarily intended to minimise added noise whilst providing high gain so design focusses on the parameters associated with the noise response of the amplifier. They are usually the first amplifier in the Radar detection chain and will have the lowest noise figure.
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Low Phase Noise Amplifiers
Pasternack's low phase noise amplifiers cover select frequency bands ranging from 1.5 to 18 GHz with residual phase noise levels as low as -180 dBc/Hz @ 10 KHz offset. Additional performance specs include small signal gain ranging from 9 to 14 dB, with typical noise figure of 5.5 dB. Psat levels for these amplifiers range from +16 to +25 dBm with Output IP3 levels as high as +34 dBm. All models feature single DC voltage supplies and input/output RF ports are internally matched for 50 ohms with DC blocking capacitors. These compact module assemblies require no external components and are available in rugged Kovar metal drop-in packages that are gold-over-nickel-plated and support field replaceable SMA connectors. All models are EAR99 and guaranteed to meet MIL-STD-883 test conditions for hermeticity and temperature cycle.
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Low Noise Amplifiers
Macom Technology Solutions Holdings Inc.
MACOM low noise amplifier MMICs cover a frequencies from DC to 86 GHz operation for a wide range of applications, including network infrastructure, radar and communication systems. MACOMs portfolio of low noise amplifiers offer a broad array of noise figures, input IP3, and input power in bare die and a variety of package types. Offerings include wideband distributed topologies and self or actively biased configurations tailored to system design needs.
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Millimeter-Wave Noise Source, Q-band, 33 To 50 GHz
Q347B
The Q347B waveguide noise source (33 to 50 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices...
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Noise Source Family
SNS Series
Works in conjunction with the NFA Series of noise figure analyzers to simplify measurement set-up and improve accuracy and reliability, automatically downloading electronically stored calibration data.
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Radar Target Repeater
Series 8000
The Eastern OptX Series 8000 Radar Target Repeater is a portable, variable delay and propagation loss system designed for radar testing and alignment. The repeater may be remotely programmed in the field for dynamic operation. When connected to a user specified antenna the repeater can provide delays of up to 500 usec with a fixed delay, multiple discrete delays, or a progressive variable delay with amplitude control The Series 8000 features ultra wide bandwidth, low loss, high isolation, low noise figure, and high dynamic range.
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Programmable Step Attenuator DC~50GHz, 0~115dB Att.
The programmable step attenuator achieves step attenuation over a wide frequency band. It features high attenuation accuracy, excellent repeatability, low insertion loss, and long service life. Its primary applications include controlling the amplitude of signals entering systems, regulating output signal power in systems, and adjusting impedance matching between signal sources and loads. It is widely used in various broadband spectrum analyzers, broadband vector network analyzers, broadband synthesized signal sources, noise figure test sets, and diverse microwave automatic test systems.
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Radar Front Ends
FMCW
The transmit signal is derived from an external VCO signal, internally multiplied, which also acts as the LO for the receive mixer. The resulting IF is conditioned for gain and filtering as required. The IF also contains an industry leading IF noise figure, especially in the frequency range below 500MHz. Custom designs available, visit our custom design page for more information.
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Noise Figure Measurements With Vector Correction
S96029B
This software application enables high-accuracy noise figure and noise-power measurements of amplifiers. It utilizes Keysight’s unique vector-source-correction technique, which uses a source-impedance tuner to remove the effects of imperfect system-source match. This approach yields accuracy that surpasses that provided by the Y-factor method and other cold-source implementations, especially for in-fixture, on-wafer, and automated-test environments. A scalar-calibrated method is also available that offers less accuracy but is faster and does not require an impedance tuner.
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Noise Figure Analyzers & Noise Sources
Keysight Technologies provide a range of noise figure measurements solutions to meet your needs, from the NFA series noise figure analyzers to the noise figure measurement personalities for our spectrum analyzers. We also have a range of noise sources to complete the measurement solution.
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Frequency Block Converter
FBC
The FBC-XX-FB is a full band system can be built upon a Keysight N8975A Noise Figure Analyzer (NFA) or X Series Signal Analyzer with option N9069A. This system allows the user to extend the frequency range of the NFA to allow for accurate noise figure measurements to be performed on a device covering Ka, U, V, E, W bands (26.5-170 GHz), when used with an Agilent E8247C signal generator (or equivalent).
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Noise Source, 10 MHz to 18 GHz, nominal ENR 15 dB
346B
The Keysight 346B noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. The 346B's high ENR, low SWR, and variety of connectors make it a general-purpose noise source. Add special option H01 for high ENR (21 dB typical) to measure high noise figure devices, or option H42 for measuring Direct Broadcast Satellite (DBS) low noise block converters.
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Low Noise Amplifiers
Our range of ITAR Free, Low Noise Amplifiers (LNAs) cover a wide range of applications but are primarily suited to communication systems including both Data-Link and Satellite Communications (Satcom) systems. Our new K-Band LNA operates over a 19.2 - 21.2 GHz with 1.3 dB Noise Figure at 25°C. It is configured with a waveguide input and 2.92 output connector all in a hermetic package.
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Booster and In-line Amplifier
Amonics' EDFA range adopts unique design to produce maximum signal gain and saturated output power while maintaining low noise figure, enabling test capabilities in system or component level manufacturing and characterizing processes, as well as facilitating highly demanding R&D applications. The compact turnkey benchtop or 19" rackmount unit incorporates a user-friendly front panel housing with a LCD monitor display, key switch, power control knob and optical connectors. An integrated RS232 computer interface enables easy control, diagnostic functions and data acquisition.
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Noise Figure Meters
H5M Series
*Frequency range from 10 MHz to 4/20 GHz*Noise Ratio and Gain measurements*Frequency converter measurements with a fixed or external heterodines*Built-in thermostatic YIG preselector*High measurement speed*Extend the NFA solution up to 50 GHz with special downconverter unit*SCPI Language Compatibility
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2 To 18 GHz 6 Channel Downconverter
Teledyne RF & Micrrowave's Six Channel 2 - 18 GHz (RF and LO) downconverter operates with an IF of ~960 MHz, providing 25 dB of RF-IF gain, and bandwidth of ~500 MHz. This downconverter operates on a single LO at -6 dBm which is amplified, split, then again amplified to each of the 6 channels. Integrated into each channel is a range extension switch, controlled by a TTL input and adding 20 dB attenuation. Noise figure is ~ 13.5 dB and output IP3 is ~+25 dBm. The downconverter is 2- sided, hermetically sealed and designed for rugged applications.
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Filtered Preamplifers
FPA
These low noise figure, high gain preamplifiers provide low system noise figure andallow longer antenna to receiver cable lengths. Preamplifiers can be specified withseveral filter configurations.
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PXIe Multiport Vector Network Analyzer, 1 MHz to 9 GHz
M9485A
1 MHz to 9 GHzUp to 12-ports in one chassis, 24-ports in two chassis Various applications - full N-port cal, FOM, Pulse, time-domain, noise figure and gain compression analysis capability Improve accuracy, yield & margins with the best PXI VNA speed, dynamic range, trace noise and stability Improve throughput with fast cycle time: 5 msec at 201 points, 2-port calVarious configuration with standard test set and configurable test set
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Preamplifiers
LNA Series
Low noise amplifier with 12.5 dB of gain covering the nominal frequency range 1 MHz to 3 GHz and can be used in the range from 200 kHz to 4 GHz. With its high gain and low noise figure, it will significantly increase the sensitivity of virtually all spectrum analyzers and other RF measuring instruments. All measuring instruments have a 'noise figure', which is a measure of how good the instrument is at measuring low level signals, the lower this figure, the better, although the lowest signal level will still be governed by the measurement bandwidth. A typical spectrum analyzer may have a noise figure of 20 dB or more, whereas a typical receiver may have a noise figure of 10 dB. The preamplifier has a noise figure of typically 4 dB, significantly enhancing the low level performance of such instruments, enabling signals that were previously masked by noise to be seen.
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PCI Express Receiver Board
AD12-2000-IRIGB
The AD12-2000-IRIGB is a high performance wideband 0.3-1.8GHz PCIe-bus receiver on a single PCIe Gen3 board, that can continuously digitize a wide portion of the RF spectrum, with a 3.6GSPS 12-bit A/D that can be synchronized with stability of better than +/- 100 picoseconds with respect to an IRIG-B 1PPS signal and global time codes from a satellite receiver or local site time reference. Designed for demanding military, scientific, industrial, communications, safety and electrical power utility applications, the AD12-2000-IRIGB has 60dB of gain adjust range (manual and AGC with programmable loop bandwidth), a wideband noise figure of 9dB, +11dBm 1dB compression point, and 2dB peak-to-peak ripple over the 300MHz to 1.6GB frequency spectrum.
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Fixed/Dual Delay Line
Series 1000
The EOX Series 1000 RF/Microwave Time Delay System is an economical, high performance, turnkey solution for radar test, wireless communications, Wi-MAX, and altimeter applications. The Series 1000 features ultra wide bandwidth, low loss, high isolation, low noise figure, and high dynamic range. Available with time delays up to 250 µsec and a top end frequency of 18 GHz.
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CATV Separate Raman Amplifier
RFA4000
Hangzhou Huatai Optic Tech. Co., Ltd.
1. Erbium-doped Fiber Amplifier, due to the multiple cascades and the accumulation of noise caused by spontaneous emission, will reduce the system CNR greatly and thus it will limit the transmission capacity and distance of the system. Raman Amplifier is a newly designed fiber amplifier based on Stimulated Raman Scattering (SRS) effect. Raman amplifier is considered as the core technology of new generation DWDM fiber over-long communication. Compared with Erbium-Doped Fiber Amplifier, Raman amplifier has the advantage of low Noise Figure (NF), wider gain bandwidth, flexible gain spectral region and stable temperature. It is the only device that can operate in 1300~1600 nm.
