Focus Microwaves - Noise Modules
of the cold-source noise figure measurement technique. This specific technique requires a noise source to determine the kBG (gain-bandwidth constant) of the system and a passive mechanical tuner is used to characterize the noise receiver across both the impedance and frequency space. This step is imperative to obtain fully vector-source-corrected measurements.
A RF down conversion stage might be required if the frequency of noise measured exceeds the receiver’s bandwidth. Focus offers noise modules which support down conversion for optimal speed and performance.
Hardware
Noise Measurement System
Model | Frequency | Insertion Loss | VSWR | Min. Gain | Max. VSWR | Connector |
NMS-2600 | up to 26.5 GHz | 0.80 dB | 1.61 | 29 for 0.8-26.5GHz | 1.8:1 | 3.5mm |
NMS-4000 | up to 40 GHz | 0.91 dB | 1.81 | 30 for ≤26.5GHz, 29 for 26-40GHz | 2.1:1 | 2.9mm |
NMS-5000 | up to 50 GHz | 0.99 dB | 1.8:1 |
27 for ≤26.5GHz, 27 for 26-40GHz, 28 for 40-50GHz |
2:1 | 2.4mm |
NMS-6700 | up to 67 GHz | 1.12 dB | 1.91 |
29 for ≤26.5GHz, 28.5 for 26-40GHz, 28 for 40-50GHz, 21 for 50-65GHz |
3:1 | 1.85mm |
NMS-6700-DC* | up to 67 GHz | 1.12 dB | 1.9:1 |
29 for ≤26.5GHz, 28.5 for 26-40GHz, 28 for 40-50GHz, 37 for 50-65GHz |
3:1 | 1.85 mm |
NMS-75500-DC* | 50 to 75 GHz | 0.4dB | 1.2:1** | 40 for 50-75GHz | 1.6:1** | WR-15 |
NMS-90600-DC* | 60 to 90 GHz | 0.9dB | 1.3:1** | 35 for 60-90GHz | 1.8:1** | WR-12 |
NMS-110750-DC* | 75 to 110 GHz | 1.1dB | 1.3:1** | 36 for 75-110GHz | 1.9:1** | WR-10 |
NMS-1701100-DC* | 110 to 170 GHz | 1.3dB | 1.4:1** | 36 for 110-170GHz | 2:1** | WR-6.5 |
* with Downconverter
** +/-10%
Graphs
Noise Parameters
Noise Circles & Stability Regions
Noise Parameters: Minimum Noise Figure / Rn / Gamma Opt / Phase of Gamma Opt
Setup
More Product Information
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Fiber coupled to allow movement
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Ultra-broadband measurement
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Transmitted or reflected data collection
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Mates with collinear adaptor (AXA4001)
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High signal to noise ratio
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Hot swappable
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Low noise to enable rapid data collection
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Adjustable lens tube for focusing
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Multiple lens configurations available
Probing with long leads or accessories is sometimes necessary to reach the test points, but it comes at the expense of reduced bandwidth, increased capacitance, and added noise. The ZD accessories are engineered to provide the best signal fidelity without ringing or distortions commonly introduced with tip accessories.
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4 GHz or 6 GHz models
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Up to 5 Vpk-pk dynamic range with low noise
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±3 V offset range
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Deluxe soft carrying case
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Wide variety of tips and leads
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Solder-In Lead
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Positioner (Browser) Tip
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Adjustable (Browser) Tip
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Quick Connect Lead
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HiTemp Solder-In Lead
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Ideal for DDR2, DDR3, LPDDR2
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Low loading and high imedance for minimal signal disturbance
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Up to 15KW in 3U, up to 30KW in 6U
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Easily parallel chassis for up to 150KW +
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Automatic Constant Voltage/Constant Current Cross Over
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Fast load transient response: Protection from undesired voltage exursions
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Optional Power Factor correction available at no charge: Power factor >0.9 typical
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Optional Isolated Analog I/O available at no charge
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Low audible noise: Temperature controlled variable speed fans
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Load-lock chamber: Cycle devices 10X faster in a cryogenic environment
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High-density electrical interface at cryogenic temperatures: More pins on the device enables more test structures to be probed with a single cooldown
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Base temperature of < 2K or < 4K with high cooling power: Test devices at the temperatures that matter most for pre- screening and evaluating device performance
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Low vibration: Stable contact with the device under test and enables low noise measurements
Focus Microwaves
Focus Microwaves is a pioneering engineering company, built around the innovations of its founder Dr. Christos Tsironis who developed his first manual tuner in 1973 and is the inventor of most existing electro-mechanical tuner families. The success of Focus is based on the engineering and manufacturing skills of its highly motivated and experienced team of engineers and technicians, who have been trained and encouraged to develop new technologies. In addition, listening to our customers needs and insights helps us discover and develop new and measurement methods on an ongoing basis, relentlessly pushing the limits of what is possible.
From humble beginnings in 1988, Focus has become the main supplier of advanced Load Pull and Noise Tuner Systems. Our mission is to provide effective, reliable and innovative solutions for non-50 Ohm testing (Noise and Load Pull) of RF microwave transistors, thus enabling our customers to compete in the marketplace with better designs and to advance the understanding and knowledge of the field.
Contact Details
Focus Microwaves Inc. Main Head Office
4555 Chem. du Bois-Franc, Saint-Laurent, QC H4S 1A8, Canada
Phone: +1-514-684-4554