R&S®SMB100A microwave signal generator

R&S®SMB100A microwave signal generator
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R&S®SMB100A microwave signal generator
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R&S®SMB100A microwave signal generator
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R&S®SMB100A microwave signal generator
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R&S®SMB100A microwave signal generator
Open Lightbox
R&S®SMB100A microwave signal generator
Open Lightbox
R&S®SMB100A microwave signal generator
Open Lightbox
R&S®SMB100A microwave signal generator
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R&S®SMB100A microwave signal generator, Front view R&S®SMB100A microwave signal generator, Front High R&S®SMB100A microwave signal generator, Side view R&S®SMB100A microwave signal generator, Back view R&S®SMB100A microwave signal generator, Hero view R&S®SMB100A microwave signal generator, Hero view R&S®SMB100A microwave signal generator, Application Image R&S®SMB100A microwave signal generator, Application Image

Key facts

  • Frequency range: 100 kHz to 12.75, 20, 31.8 and 40 GHz
  • SSB phase noise of  –108 dBc (typ.) at 10 GHz and 20 kHz offset
  • Wideband noise of –138 dBc at 10 GHz and 30 MHz offset
  • High output power of up to +27 dBm (meas.)
  • Analog modulations with AM, FM/φM and pulse modulation supported
  • 3 year warranty extension

Versatile, compact, up to 40 GHz; 170 GHz with upconverter

The compact, versatile R&S®SMB100A microwave signal generator with a frequency range up to 40 GHz provides outstanding spectral purity and high output power. In addition, it features easy operation, comprehensive functionality and low cost of ownership. The R&S®SMB100A provides microwave characteristics that are exceptional in its class, making it an excellent general purpose instrument. Its outstanding characteristics, compact size and low weight make the instrument ideal for a wide range of applications. The R&S®SMB100A is optimally suited for use in development, production and service, or simply wherever an analog microwave signal is needed.

 

Features & benefits

Best signal quality in the mid-range

Lowest SSB Phase noise, harmonics, nonharmonics and wideband noise

  • Very low SSB phase noise of typ. –108 dBc at 10 GHz  (20 kHz carrier offset, 1 Hz measurement bandwidth)
  • Optional internal low harmonic filters for the 20 GHz and 40 GHz model to lower the harmonics to less than –50 dBc for frequencies above 150 MHz
  • Innovative DDS-based synthesizer concept 

SSB phase noise for different frequencies
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SSB phase noise for different frequencies

Measured SSB phase noise with the R&S®SMB-B1H OCXO option for the 12.75/20/31.8/40 GHz model.

High output power and wide level range 

High output power of up to +27 dBm (meas.)

The R&S®SMB100A combines excellent signal quality with a high output power of > +18 dBm as standard for the 12.75 GHz instrument. The maximum measured available output power is up to +27 dBm.
The R&S®SMB-B31 high power option for the 20 GHz model delivers a specified output power of +19 dBm while the R&S®SMB-B32 high power option for the 40 GHz model achieves +16 dBm over a wide frequency range up to 20 GHz and 40 GHz.

Maximum measured output power
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Maximum measured output power

Maximum available output level versus frequency (meas.).

Ideal for production 

Easy integration into test systems and innovative operating features

  • Wear-free electronic attenuator up to 12.75 GHz ensuring long operating life
  • High level accuracy and repeatability for high production yield
  • Closed loop power control ensures highly accurate and very stable input power to the DUT irrespective of unwanted power drifts in the test setup
  • Short frequency and level settling times which can be further reduced in list mode
  • Low power consumption

Closed loop power control
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Closed loop power control

Closed loop power control ensures highly accurate and stable input power to the DUT irrespective of unwanted power drifts or setup changes

Supports R&S®NRP-Zxx power sensors

The R&S®SMB100A supports a variety of R&S®NRP-Zxx USB power sensors.

The R&S®NRP-Z55 is a power sensor that provides an ideal enhancement to the frequency  and level range of the generator up to 40 GHz. Equipped with this power sensor, the R&S®SMB100A automatically performs external level correction and precisely measures power in the test setup.

R&S®NRP power sensor connectivity
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R&S®NRP power sensor connectivity

R&S®SMB100A with connected Rohde & Schwarz power sensor

 

UCOR (user corretion)

Compensation for external frequency response

DUTs are often connected to the signal generator via long cables or other frequency dependent components, making it very important to compensate for frequency response. The R&S®SMB100A provides a user correction (UCOR) function for this purpose. Together with the R&S®NRP power sensor, UCOR values are automatically determined at the push of a button. The UCOR enables a frequency response compensated RF signal at the new reference plane.

Setup and UCOR function
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Setup and UCOR function

Relative output power display when using cables and other components (with their own frequency responses) between the R&S®SMB100A and a DUT.

Frequency extension from 50 GHz to 170 GHz

  • R&S®SMB100A signal generator (≥ 20 GHz) plus an external R&S®SMZ frequency multiplier controlled via USB
  • An internal attenuator (mechanically or electronically controlled) can be integrated into the same housing as the frequency multiplier

R&S®SMB100A plus R&S®SMZ110
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R&S®SMB100A plus R&S®SMZ110

R&S®SMB100A microwave signal generator (20 GHz or 40 GHz) and the R&S®SMZ110 frequency multiplier with built-in electronically controlled attenuator.

Closed loop power control

A directional coupler and a connected R&S®NRP-Zxx power sensor can be used to measure DUT input power. An attractive alternative to the directional coupler is the R&S®NRP-Z28 level control sensor. The measurement from the R&S®NRP-Zxx or the R&S®NRP-Z28 is fed back to the R&S®SMB100A, which immediately adjusts its output power to compensate for the discrepancy between the wanted and the measured levels.

Closed loop power control with the R&S®SMB100A
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Closed loop power control with the R&S®SMB100A

Closed loop power control ensures highly accurate and stable input power to the DUT, irrespective of unwanted power drifts or changes in the setup

Available options

Frequency options
Product
Description
R&S®SMB-B112

Order number 1407.2109.02

Description

100 kHz to 12.75 GHz, with electronic step attenuator

R&S®SMB-B112L

Order number 1407.2150.02

Description

100 kHz to 12.75 GHz, without step attenuator

R&S®SMB-B120

Order number 1407.2209.02

Description

100 kHz to 20 GHz, with mechanical step attenuator

R&S®SMB-B120L

Order number 1407.2250.02

Description

100 kHz to 20 GHz, without step attenuator

R&S®SMB-B131

Order number 1407.2280.02

Description

100 kHz to 31.8 GHz, with mechanical step attenuator

R&S®SMB-B140

Order number 1407.2309.02

Description

100 kHz to 40 GHz, with mechanical step attenuator

R&S®SMB-B140L

Order number 1407.2350.02

Description

100 kHz to 40 GHz, without step attenuator

R&S®SMB-B140N

Order number 1407.2380.02

Description

100 kHz to 40 GHz, with mech. step att., minimum pulse width limited

Reference oscillator options
Product
Description
R&S®SMB-B1

Order number 1407.3005.02

Description

OCXO Reference Oscillator

R&S®SMB-B1H

Order number 1407.3070.02

Description

OCXO Reference Oscillator, High Performance

Analog modulation options
Product
Description
R&S®SMB-K21

Order number 1407.3811.02

Description

Pulse Modulator

for R&S®SMB-B112/-B112L/-B120/-B120L/-B131/-B140/-B140N/-B140L

R&S®SMB-K23

Order number 1407.3786.02

Description

Pulse Generator

R&S®SMB-K27

Order number 1407.3828.02

Description

Pulse Train

Requires an R&S®SMB-K23 option, only available for instruments with serial number > 102400.

Performance enhancement options
Product
Description
R&S®SMB-B31

Order number 1407.1260.02

Description

High power, 50 MHz to 20 GHz (for R&S®SMB-B120/-B120L)

R&S®SMB-B32

Order number 1407.1360.02

Description

High Power, 50 MHz to 40 GHz (only available with R&S®SMB-B131/-B140/-B140N/-B140L)

R&S®SMB-B25

Order number 1407.1660.02

Description

Harmonic filter, (for R&S®SMB-B120/-B120L)

R&S®SMB-B26

Order number 1407.1760.02

Description

Harmonic filter, (for R&S® SMB-B131/-B140/-B140L/-B140N)

Features and functions
Product
Description
R&S®SMB-B30

Order number 1407.1160.02

Description

Reverse Power Protection (for R&S®SMB-B112, R&S®SMB-B112L)

Extras
Product
Description
R&S®ZZA-S234

Order number 1109.4493.00

Description

19" Rack Adapter

R&S®TS-USB1

Order number 6124.2531.00

Description

USB serial adapter for RS-232 remote control

Documentation
Product
Description
R&S®DCV-2

Order number 0240.2193.09

Description

Documentation of calibration values

R&S®ACASMB100A

Order number 3596.9508.03

Description

Accredited calibration

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