SMU_dat-sw-en.pdf - 第13页

Version 08.00, Januar y 2012 Rohde & Schwarz R&S ® SMU200A Vector Signal Generator 13 Measur ed SSB phase noise, I / Q modulate d -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 1,0E+00 1,0E+01 1,0E+02…

Version 08.00, January 2012

12 Rohde & Schwarz R&S

SMU200A Vector Signal Generator

Spectral purity

standard, unmodulated

level < 8 dBm < –30 dBc

level < 13 dBm < –30 dBc (typ.)

Harmonics

with R&S

SMU-B31 or R&S

SMU-B36

option, level < 12 dBm

< –30 dBc

level > –50 dBm, CW, vector modulation (full-scale DC input),

> 10 kHz offset from carrier and outside the modulation spectrum

0.3 MHz  f  200 MHz < –77 dBc

200 MHz < f  1500 MHz < –80 dBc

1500 MHz < f  3000 MHz < –74 dBc

f > 3000 MHz < –68 dBc

> 850 kHz offset from carrier and outside the modulation spectrum

0.3 MHz  f  200 MHz < –77 dBc

200 MHz < f  1500 MHz < –86 dBc

1500 MHz < f  3000 MHz < –80 dBc

Nonharmonics

f > 3000 MHz < –74 dBc

level > –50 dBm, CW, vector modulation (full-scale DC input),

> 10 kHz offset from carrier and outside the modulation spectrum

0.3 MHz  f  200 MHz < –77 dBc (–87 dBc (typ.))

200 MHz < f  1500 MHz < –90 dBc

1500 MHz < f  3000 MHz < –84 dBc

Nonharmonics with R&S

SMU-B22 option

f > 3000 MHz < –78 dBc

Power supply and mechanically related

nonharmonics

at RF = 1 GHz,

50 Hz to 10 kHz from carrier

< –70 dBc

1500 MHz < f  3000 MHz < –74 dBc Subharmonics

f > 3000 MHz < –50 dBc

> 10 MHz carrier offset, 1 Hz measurement bandwidth, CW

20 MHz  f  200 MHz < –146 dBc (–149 dBc (typ.))

200 MHz < f  1500 MHz < –150 dBc (–153 dBc (typ.))

1.5 GHz < f  3 GHz < –148 dBc (–151 dBc (typ.))

f > 3 GHz < –146 dBc (–149 dBc (typ.))

vector modulation with full-scale DC input, 3 dB I/Q input gain

20 MHz  f  200 MHz < –143 dBc (–146 dBc (typ.))

200 MHz < f  1500 MHz < –146 dBc (–149 dBc (typ.))

1.5 GHz < f  3 GHz < –145 dBc (–148 dBc (typ.))

Wideband noise

f > 3 GHz < –143 dBc (–146 dBc (typ.))

20 kHz carrier offset, 1 Hz measurement bandwidth, CW

20 MHz  f  200 MHz < –128 dBc (–132 dBc (typ.))

f = 1 GHz < –131 dBc (–135 dBc (typ.))

f = 2 GHz < –125 dBc (–129 dBc (typ.))

f = 3 GHz < –121 dBc (–125 dBc (typ.))

f = 4 GHz < –119 dBc (–123 dBc (typ.))

SSB phase noise

f = 6 GHz < –115 dBc (–119 dBc (typ.))

20 kHz carrier offset, 1 Hz measurement bandwidth, CW

20 MHz  f  200 MHz < –135 dBc (–138 dBc (typ.))

f = 1 GHz < –136 dBc (–139 dBc (typ.))

f = 2 GHz < –130 dBc (–133 dBc (typ.))

f = 3 GHz < –126 dBc (–129 dBc (typ.))

f = 4 GHz < –124 dBc (–127 dBc (typ.))

SSB phase noise with R&S

SMU-B22

option

f = 6 GHz < –120 dBc (–123 dBc (typ.))

RMS value at f = 1 GHz

300 Hz to 3 kHz < 1 Hz

Residual FM

20 Hz to 23 kHz < 4 Hz

Residual AM RMS value from 20 Hz to 23 kHz < 0.02 %

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

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

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).

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.)