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 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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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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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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Noise Figure Analysis Using NI PXI RF Test Instruments
NI-RFmx Noise Figure
Measure noise figure, gain, Y-factor, effective temperatures, hot and cold power, and moreOptimized calibration and measurement routines for multi-DUT test using Y-factor and cold sourceSupports the PXIe-5668R 26.5 GHz VSA, the PXIe-5698 26.5 GHz preamplifier, and VSTsDesigned for use with industry-standard noise sources such as the Noisecom NC346 Series
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SNS Series Noise Source 10 MHz to 26.5 GHz (ENR 15 dB)
N4002A
The SNS series N4002A noise source was designed to measure DUT noise figures reliably and accurately up to 30 dB from 10 MHz to 26.5 GHz.
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Low Noise Amplifiers
Chengdu KeyLink Microwave Technology Co., Ltd.
KeyLink's low noise amplifiers typically exhibit noise figures below 5.5dB and output 1dB compression points up 8dBm. These amplifiers are economical choices for general purpose applications. KeyLink's low noise amplifiers can be categorized as follows.
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Mechanical Noise Tuner Control
S93027B
The S93027B enables to control Maury Microwave’s LXI tuner as the impedance tuner and measure the noise figure of unmatched devices (Gamma opt. < 0.9) with the N524xB PNA-X with option 029 and the S93029B noise figure measurement software.
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10 MHz to 55 GHz Noise Sources
CNS346 Series
The Spanawave CNS346 Series is designed for precision noise figure measurement applications. The superior VSWR characteristics reduce multiple reflections of the test signals and significantly increase the measurement accuracy of most noise figure set-ups. The CNS346 Series noise sources have broadband coverage and extremely good temperature and voltage stability, for the finest noise figure meter-compatible laboratory standards. Outputs of 6, 15.5 and 22 dB ENR are available, allowing the units to accurately measure noise figures up to 20 ,30 and 36 dB respectively.
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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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Amplifiers
Alnair Laboratories Corporation
A specially designed Erbium-doped fiber amplifier which offers a superior optical amplication performance with a very high gain factor and a minimal added noise. A near quantum limited noise figure of typically 3.8dB, and a small-signal optical gain of over 50dB is achievable with input signal as low as -50 dBm reflecting the impact of the specialty fiber and composite amplifier design, making it an indispensable amplifier for weak optical signals.
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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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SNS Series Noise Source 10 MHz to 18 GHz (ENR 6 dB)
N4000A
The SNS series N4000A noise source is designed for accurately measuring devices with low noise figure, with a frequency range of 10 MHz to 18 GHz and nominal ENR 6 dB.
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Microwave System Amplifier, 2 GHz to 26.5 GHZ
83018A
The Keysight 83018A microwave system amplifier is a compact, off-the-shelf amplifier designed for systems designers and integrators. This amplifier provides power where you need it to recover system losses and to boost available power in RF and microwave ATE systems. The ultrabroad bandwidth from 2 to 26.5 GHz allows the designer to replace several narrow bandwidth amplifiers with a single Keysight amplifier, eliminating the need for crossover networks or multiple bias supplies. The standard Keysight 83018A includes internal directional detectors for external leveling applications. With excellent noise figure relative to its broad bandwidth and high gain, this amplifier significantly improves system noise figure and dynamic range. The Keysight 83018A comes equipped with a low profile heat sink, an integral mounting bracket, and a two-meter dc power supply cable. Thermal characteristics and power supply design allow fast, easy integration into most measurement systems.
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Noise Figure Measurements With Vector Correction
S93029B
The S93029B noise figure application enables high-accuracy noise figure and noise-power measurements of amplifiers, frequency converters, and mixers, utilizing Keysight’s unique vector-source-correction technique
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Embedded Local Oscillator Capability
S93084B
The S93084B tunes the network analyzer’s receivers to the output frequency of the converter under test without having to access internal LOs or a common reference signals. For converters with embedded LOs, this enables measurements of match-corrected conversion loss/gain and absolute group delay (requires S93082B and S93083B), gain compression versus frequency (requires S93086B), intermodulation distortion (requires S93087B), and noise figure (requires S93029B).
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Receiving Amplifiers
he products from Kuhne electronic from the category "Receiving Amplifiers for Professional Use" are designed for the following applications: Radio Link Systems, Satellite Receivers as well as Scientific and Measurement Instrumentation.These amplifiers stand out due to outstanding Noise Figures as well as a very good Large Signal Stability and small Housing Sizes.
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USB Preamplifier, 10 MHz to 4 GHz
U7227A
The U7227A, 10 MHz to 4 GHz USB preamplifier is designed to bring reliable gain and low noise figure to measurement systems improving the overall system performance and reduce systematic errors; a total solution to the X-Series signal analyzers to perform noise figure measurements.
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Low Noise Amplifier
Low noise amplifiers, or LNAs, are designed and manufactured by utilizing the most advanced PHEMT or MMIC devices, thin film technologies, and an improved DC power supply to deliver a low noise performance with broad operating bandwidths and good gain flatness. While standard models focus on general purpose applications, additional models with differing frequency ranges, gains and noise figures are listed on the website. Custom designs are also offered to meet any user’s specific needs.
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Hybrid Raman/Er-doped Fiber Amplifier
HFA5000
Hangzhou Huatai Optic Tech. Co., Ltd.
1. Erbium-doped Fiber Amplifier, due to 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 Fiber Amplifier (RFA) is a newly designed fiber amplifier based on Stimulated Raman Scattering (SRS) effect. It 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 1300~1600nm.
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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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Automated Tuners / Impedance Tuners / Load Pull Tuners
MT97x, MT98x and XT98x series automated tuners (also known as automated impedance tuners and automated load pull tuners) are precision instruments that are optimized for a broad class of in-fixture and on-wafer applications, and may be used in any automated or manual application requiring the ability to match the impedance of a microwave circuit element or to establish specific impedances at a terminal interface. The tuner design is based on the slide screw concept using the inherently broadband slab-line transmission structure. Each unit has two non-contacting probes deliver high VSWR with superb accuracy and reliability over a wide frequency range. These probes can be fully retracted leaving a low-loss, well-matched transmission line, which is a significant benefit in power related applications where two-port tuners capable of handling large amounts of power are required. As integral components of Maury Device Characterization Solutions, these PC-based tuners are controlled using Maury's family of Device Characterization Software tools, including MT930 IVCAD, MT993 ATS and the DLL-based measurement automation environment. Maury Microwave automed impedance tuners are ideal for load pull, harmonic load pull, active load pull, hybrid active load pull, noise figure, noise parameters and all automated tuner applications.
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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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PXI Network Analyzers
M980xA Series
The Keysight M980xA Series of PXI network analyzers meets the most demanding challenges with a true multiport architecture that offers exceptional performance no matter how many ports you use. Gain deeper insights into your devices with the widest available portfolio of measurement applications for PXI VNAs, including spectrum analysis and noise figure measurements.
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UP Converter
The products have a big Dynamic Range, are highly linear and have low Noise Figures to keep the best possible quality of the signals to be converted. For this reason an internal filter for secondary wave suppression is implemented.
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Bi-Directional Amplifier
RF Lambda’s bi-directional amplifiers can be used in repeater type applications where a single conductor is used for both receive and transmit. These amplifiers offer low noise figure and high linearity. Hermetically sealed options are available upon request.
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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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Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB
346A
The Keysight 346A 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 very small change in reflection coefficient (<0.01) from ON to OFF is designed especially for accurate characterization of input-impedance-sensitive devices (like GaAsFETs and many UHF amplifiers).
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Low Noise Amplifier (DC Powered)
RF Lambda’s DC low noise amplifiers (LNA) are broadband and offer low noise figure high IP3. Hermetically sealed options are available upon request.
