Descrizione

Key Facts
  • Baseband generator with realtime coder and arbitrary waveform generator
  • Up to two R&S®SMW-B10 can be installed
  • Baseband signals can be digitally added, provided with a frequency offset and varied in power and phase relative to each other
  • Custom digital modulation in real-time, all common digital modulation types, baseband filters, coding schemes and data sources
  • Arbitrary waveform generator with sequencer and multicarrier capabilities
  • Support of all important digital standards such as LTE, LTE-Advanced, 3GPP FDD/HSPA/HSPA+, GSM/EDGE/EDGE Evolution, TD-SCDMA, CDMA2000®/1xEV-DO, WLAN IEEE 802.11a/b/g/n/ac
  • No separate PC software required for digital standards
  • Exceptional modulation quality, e.g. -49 dB EVM (meas.) with 160 MHz wide WLAN IEEE 802.11ac signals
  • Supported by R&S®WinIQSIM2™ simulation software
  • MATLAB® toolkit available

Brief Description To meet the requirements of advanced communications systems, a vector signal generator needs a powerful baseband section. The R&S®SMW200A sets standards in this field too. Each of the two available baseband modules contains a realtime coder and an arbitrary waveform generator. An R&S®SMW-B10 baseband module provides 120 MHz RF bandwidth and 64 Msample ARB memory as standard. The performance can be further enhanced to 160 MHz RF bandwidth and up to 1 Gsample ARB memory via software options. The bandwidth of up to 160 MHz covers modern digital standards, such as LTE?Advanced and WLAN IEEE 802.11ac, as well as wideband multicarrier or multistandard radio signals. The baseband signals can be digitally added, provided with a frequency offset and varied in power and phase relative to each other. This makes it incredibly simple to generate multicarrier scenarios and combinations of different digital standards with the R&S®SMW200A. The R&S®SMW200A uses software options to generate signals for all important digital standards, particularly LTE/LTE?Advanced, 3GPP FDD/HSPA/HSPA+, GSM/EDGE/EDGE Evolution, TD?SCDMA and WLAN IEEE 802.11a/b/g/n/ac. For more information, go to the page describing digital standards options via the Options tab on this page.
Specifications
Baseband generator R&S®SMW-B10 option, up to 2 baseband generators can be installed
Arbitrary waveform mode
Sample rate standard 400 Hz to 150 MHz
with R&S®SMW-K522 option 400 Hz to 200 MHz
Bandwidth (RF) standard up to 120 MHz
with R&S®SMW-K522 option up to 160 MHz
Waveform length standard 1 sample to 64 Msample in one-sample steps
with R&S®SMW-K511 option 1 sample to 512 Msample in one-sample steps
with R&S®SMW-K511 and -K512 options 1 sample to 1 Gsample in one-sample steps
Sample resolution equivalent to D/A converter 16 bit
Realtime operation (custom digital modulation)
Types of modulation ASK, FSK, variable FSK, PSK, QAM
Baseband filter cosine, root cosine, Gaussian, rectangular, split phase, and more
Coding off, differential, diff. phase, diff. + Gray, Gray, GSM, EDGE, WCDMA, and more
Data sources PRBS: 9, 11, 15, 16, 20, 21, 23, all 0, all 1, pattern, data lists
Frequency offset with the aid of the frequency offset, the center frequency of the wanted baseband signal can be shifted. The restrictions caused by the modulation bandwidth still apply
Setting range standard -60 MHz to +60 MHz
with R&S®SMW-K522 option -80 MHz to +80 MHz
Triggering
Trigger source internal, internal (other baseband), external
Trigger modes auto, retrig, armed auto, armed retrig, single
Marker signals
Options for digital standards
Supported standards and modulation systems for details, go to R&S®SMW200A page, “Options” tab, and select the appropriate option LTE / LTE-Advanced, 3GPP FDD / HSPA / HSPA+, GSM/EDGE/EDGE Evolution, CDMA2000, 1xEV-DO Rev. A/B, TD-SCDMA, WLAN IEEE 802.11a/b/g/n/ac, AWGN, and more
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