MT7553 Series Noise Receiver Modules and Noise Switching Modules

Expanding the Capabilities of Noise Figure Analyzers for Ultra-Wideband Noise Parameter Measurements

Features and Benefits

  • Instantaneous ultra-wideband measurements from 100 MHz to 65 GHz
  • Banded Measurements from 50 to 75 GHz, 60 to 90 GHz, and 75 to 110 GHz
  • Automates Noise Parameter Measurement Systems
  • Replaces External Banded Components
  • Integrated Downconverter, Bias Tees, Low-Noise Amplifier, and Switches
  • Low Noise Figure

Introduction

Noise Parameters are the non-50Ω extensions of Noise Figure, and are an important modeling and model validation tool to understand how a device-undertest’s performance changes as a function of source impedance. Noise Parameter measurements are typically performed using a Vector Network Analyzer (VNA) to measure the S-Parameters of the DUT, and a Noise Analyzer (either Noise Figure Analyzer NFA or Spectrum Analyzer SA) to measure the noise power of the DUT. Noise parameters are calculated from a combination of known source impedances, S-parameters and noise powers.

MT7553B01 and MT7553B03 50 GHz PNA-X Noise Receiver Modules

Noise Receivers and Noise Receiver Calibration

The Noise Receiver consists of the component chain from the DUT output to, and including, the Noise Analyzer. The minimum Noise Figure (Fmin) of the Noise Receiver will affect the minimum accurately measurable Noise Figure of the DUT by increasing the sensitivity of the receiver. Therefore it is critical to provide a Noise Receiver with the lowest Fmin possible. In addition, Noise Analyzers may not be available at the frequencies of interest and in these cases it is common to use a downconverter chain to lower the frequency of the signal to one that can be measured by the Noise Analyzer. Maury’s family of MT7553-series Noise Receiver Modules assist in doing exactly these things.

MT7553-Series Coaxial Noise Receiver Modules

MT7553-series coaxial Noise Receiver Modules integrates the entire output network of a typical Noise Parameter measurement system into a turnkey solution. These NRMs consist of
>> Wideband low-noise amplifiers to improve the sensitivity of the Noise Receiver
>> RF switches to switch between VNA and NFA paths
>> Wideband bias tees to provide bias to the device under test

The MT7553A03 NRM covers 0.1-26.5 GHz and is designed to operate with either standalone Noise Analyzer or combined VNA/NFA up to 26.5 GHz.

The MT7553B03 NRM covers 0.1-50 GHz and is designed to operate with either standalone Noise Analyzer or combined VNA/NFA up to 50 GHz.

In cases where the NFA does not match the Noise Parameters frequency of interest, an NRM with integrated downconverter module may be used to accept an input signal (commonly referred to as RF signal) at F1 and mix it with local oscillator signal F2, resulting in an intermediate frequency (IF) of F1-F2, a frequency able to be directly measured by a lower frequency NFA.

The MT7553B01 NRM covers 0.1-50 GHz and is designed to operate with either standalone Noise Analyzer or combined VNA/NFA where the VNA operates to at least 50 GHz but the NFA operates to 26.5 GHz.

The MT7553C01 NRM covers 0.1-65 GHz and is designed to operate with either standalone Noise Analyzer or combined VNA/NFA where the VNA operates to at least 65 GHz but the NFA operates to 50 GHz.


MT7553B03 100 MHz to 50 GHz Noise Receiver Modules MT7553C01 100 MHz to 65 GHz Noise Receiver Modules

MT7553M-series Millimeter Wave Noise Receiver Modules

The MT7553M is designed for full millimeter wave noise parameter measurements within the TE10 waveguide band of operation. The MT7553M downconverts noise power densities from the frequency of interest to the NFA bandwidth using a double-side band swept LO technique. The MT7553M is available in configurations covering the 50-75 GHz (WR15), 60-90 GHz (WR12) and 75-110 GHz (WR10) frequency ranges.

MT7553N-series Noise Switching Modules

MT7553N-series Noise Switching Modules integrates the entire input network of a typical Noise Parameter measurement system into a turnkey solution. These NSMs consist of
>> RF switches to switch between the VNA and noise source paths
>> Wideband bias tees to provide bias to the device under test

The MT7553N26, MT7553N50 and MT7553N65 cover 0.1-26.5 GHz, 0.1-50.0 and 0.1-65.0 GHz respectively.

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Application Notes and Data Sheets

For information about the available models, configurations and specifications, please see the following data sheet:

4T-085

MT7553 Noise Receiver Modules 4T-085

5A-042

A New Noise Parameter Measurement Method Results in More than 100x Speed Improvement and Enhanced Measurement Accuracy 5A-042

5C-085

Using an Impedance Tuner and Noise Receiver Module to Extend the Agilent PNA-X to 50 GHz Noise Parameters 5C-085