SMU_dat-sw-en.pdf - 第14页
Version 08.00, Januar y 2012 14 Rohde & Schwarz R&S ® SMU200A Vector Signal Generator List mode Frequency and level values can be stored in a list and set in an extremely short amount of time. Operating modes aut…
Version 08.00, January 2012
Rohde & Schwarz R&S
®
SMU200A Vector Signal Generator 13
Measured SSB phase noise, I
/
Q modulated
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
1,0E+00 1,0E+01 1,0E+02 1,0E+03 1,0E+04 1,0E+05 1,0E+06 1,0E+07
Offset frequency
/
Hz
SSB phase noise / dBc (1Hz meas. bandwidth)
5.7 GHz
2.1 GHz
850 MHz
100 MHz
Measured SSB phase noise, unmodulated
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
1,0E+00 1,0E+01 1,0E+02 1,0E+03 1,0E+04 1,0E+05 1,0E+06 1,0E+07
Offset frequency
/
Hz
SSB phase noise / dBc (1Hz meas. bandwidth)
5.7 GHz
2.1 GHz
850 MHz
100 MHz
–180
–170
–160
–150
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
–40
1 10 100 1k 10k 100k 1M 10M
Offset frequency / Hz
SSB phase noise / dBc (1 Hz)
Standard performance
Enhanced phase noise performance with B22 option
Measured SSB phase noise, f = 1 GHz, comparison of standard performance
and performance with R&S
®
SMU-B22 option.
Version 08.00, January 2012
14 Rohde & Schwarz R&S
®
SMU200A Vector Signal Generator
List mode
Frequency and level values can be stored in a list and set in an extremely short amount of time.
Operating modes automatic, single sweep, manual or
external trigger, fast hopping with
immediate and external trigger
Max. number of channels 10000
Dwell time 1 ms to 1 s
Resolution 0.1 ms
after external trigger see frequency and level data Setting time
additional trigger delay in two-path units,
both paths operated in list mode
< 200 µs
Phase coherence (R&S
®
SMU-B90 option)
The R&S
®
SMU-B90 provides phase-coherent RF outputs of two or more RF paths for one or more instruments with I/Q modulation.
The R&S
®
SMU-B90 option can be installed in any R&S
®
SMU200A with serial number 103001 or higher.
internal This mode corresponds to normal
operation. Each RF path uses its internal
local oscillator.
external An external signal is used for path A. With
a two-path instrument, the internal local
oscillator signal is used for path B.
coupled A –> B The local oscillator signal of path A is also
used for path B (only for two-path
instruments).
Coupling modes
externally coupled A –> B An external signal is input at the LO IN
connector and used for the coupled paths
A and B (only for two-path instruments).
The internal local oscillator signal used
with path A is also available on the LO
OUT connector (in order to couple two
instruments).
on
LO out state
The LO OUT signal is switched off. off
internal mode (no LO coupling)
underrange 100 kHz to < 300 kHz
R&S
®
SMU-B102,
R&S
®
SMU-B202
up to 2 GHz
R&S
®
SMU-B103,
R&S
®
SMU-B203,
up to 3 GHz
R&S
®
SMU-B104 up to 4 GHz
Frequency range
R&S
®
SMU-B106 up to 6 GHz
external modes, coupled A –> B,
externally coupled A –> B
R&S
©
SMU-B102 and
R&S
©
SMU-B202
200 MHz to 2 GHz
R&S
©
SMU-B103 and
R&S
©
SMU-B203
200 MHz to 3 GHz
other configurations Coupling is possible within the smallest
common frequency range of all RF paths
to be coupled.
LO IN 10 dBm to 16 dBm (nom.) Levels of external local oscillator signals
LO OUT 13 dBm (nom.)
Version 08.00, January 2012
Rohde & Schwarz R&S
®
SMU200A Vector Signal Generator 15
drift
versus temperature 0.1° (nom.)
when ambient temperature changes
by 1 °C
versus time 0.02°/h (nom.)
versus level 2°/dB (nom.)
setting range
(with baseband phase offset)
0.00° to 359.99°
Phase
setting resolution 0.01°