Atec SMR User Manual

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Data sheet

Version

05.00

June 2004

Microwave Signal Generator ¸SMR

High-performance, cost-effective and reliable up to 40 GHz

◆ Instrument family with four models

– ¸SMR20 (10 MHz to 20 GHz) – ¸SMR27 (10 MHz to 27 GHz) – ¸SMR30 (10 MHz to 30 GHz) – ¸SMR40 (10 MHz to 40 GHz)

◆ Standard version:

CW generator with pulse modulation and digital frequency sweep

◆ Easily upgradeable to AM/FM signal

generator and synthesized sweep generator with analog ramp sweep owing to flexible options concept

◆ Optional pulse generator for radar

and EMC applications

◆ Optional IF input for upconversion of

digitally modulated IF signals

◆ Compact, lightweight, user-friendly:

ideal in the lab and for field applications

◆ 3-year calibration cycle

The allrounder – designed for future-proofness

Ease of operation

◆ High-contrast LC display

◆ Online help including IEC/IEEE-bus

commands

◆ Simple and self-explanatory settings

◆ User-assignable keys

◆ One-hand operation with EasyWheel

Wide frequency range

◆ ¸SMR20 (1 GHz to 20 GHz)

◆ ¸SMR27 (1 GHz to 27 GHz)

◆ ¸SMR30 (1 GHz to 30 GHz)

◆ ¸SMR40 (1 GHz to 40 GHz)

◆ Optional extension of lower frequency

limit to 10 MHz (¸SMR-B11)

◆ Frequency resolution 1 kHz,

optional 0.1 Hz (¸SMR-B3)

High output power

◆ ¸SMR20 >+10 dBm (at 20 GHz)

◆ ¸SMR27

◆ ¸SMR30/40

(at 30/40 GHz)

>+11 dBm (at 27 GHz)

>+9 dBm

High-precision level control

◆ High-precision, frequency-response-

compensated level control

◆ Setting range extendible to

−130 dBm by means of the optional RF Attenuator ¸SMR-B15/-B17

Three instruments in one

◆ CW generator with pulse modulation

capability (standard version)

◆ Signal generator with AM/FM and

LF generator (option ¸SMR-B5)

◆ Synthesized sweep generator with

analog ramp sweep (option ¸SMR-B4)

Optional pulse generator (¸SMR-B14)

◆

Operating modes: single pulse, double pulse, externally triggered, gate mode

◆ Pulse repetition 100 ns to 85 s

◆ Pulse width 20 ns to 1 s

Sweep capabilities

◆ Digital RF and level sweep

(standard version)

◆ Analog ramp sweep

(RF sweep, option ¸SMR-B4)

◆ Max. sweep rate for ramp sweeps

min. 600 MHz/ms (frequency >2GHz)

◆ Digital sweep of LF generator

(with option ¸SMR-B5)

◆ 10 user-selectable frequency

markers for RF sweep

◆ Operating modes: automatic, single-

shot, manual, externally triggered

Optional IF input (¸SMR-B23/-B24/-B25)

◆ Built-in upconverter for digitally

modulated IF signals (¸SMR-B23/

-B24: DC to 700 MHz, ¸SMR-B25: 40 MHz to 6 GHz for ¸SMR20 only)

◆ Ideal for use with Vector Signal

Generator ¸SMIQ and I/Q Modulation Generator ¸AMIQ

2 Microwave Signal Generator ¸SMR

CW, signal or synthesized sweep generator

Memory

◆ Space for 50 complete instrument

setups

The CW generator

The ¸SMR family comprises four base models designed as CW generators with pulse modulation capability. The

High-precision output level

Microwave signal generators are frequently used for calibrating test receivers. This task calls for a highly accurate and stable output level settable with high resolution. This is ensured by a high-precision, frequency-response-compensated level control for levels higher than –20 dBm. The setting range can be extended to –130 dB with the optional RF Attenuator ¸SMR-B15 or ¸SMR-B17.

Application-oriented frequency resolution

The standard frequency resolution of 1 kHz of the ¸SMR offers a comfortable margin for most applications, for example frequency response measurements in the laboratory and in production and servicing. To satisfy more stringent requirements, e.g. for scientific applications and research, the ¸SMR-B3 option is available to improve frequency

resolution to 0.1 Hz. four models have a common lower frequency limit of 1 GHz and provide frequency coverage up to 20 GHz (¸SMR20), 27 GHz (¸SMR27), 30 GHz (¸SMR30) and 40 GHz (¸SMR40). The lower limit can be expanded to 10 MHz by the optional Frequency Extension 0.01 GHz to 1 GHz (¸SMR-B11).

Stable output frequency

The crystal reference built in as standard ensures an accurate, low-drift output frequency. The ¸SMR can be fitted with the optional OCXO Reference Oscillator ¸SMR-B1 to satisfy the most stringent requirements in terms of accuracy and aging.

Pulse modulator included

Pulse modulation is still the most impor-

tant modulation mode for microwave

applications. Each of our base units is,

therefore, equipped with a high-quality

pulse modulator. The on/off ratio is better

than 80 dB, the rise/fall time shorter than

12 ns. Pulse widths of up to 25 ns are

possible. Offering an excellent price/performance ratio, each of the four base models is ideal for the user wishing to enter the field of microwave testing at an affordable price. Should the measurement tasks become more demanding, the base models can be upgraded any time by means of options to give an AM/FM signal generator or a synthesized sweep generator featuring fast, fully synthesized, analog ramp sweep.

Excellent spectral purity

The ¸SMR stands out from other generators for its excellent spectral purity. Advanced frequency synthesis with fractional-N divider makes for low SSB phase noise and high spurious suppression, both of which are for example prerequisites for reliable receiver measurements. Modern microwave filters in the output path of the instrument ensure excellent harmonics suppression. This is necessary to obtain conclusive results in scalar network analysis measurements.

High output level saves you real cash

All microwave test setups involve high losses caused by the use of long cables, power dividers, directional couplers and RF relays. Expensive microwave amplifi-

These guaranteed values illustrate that

the ¸SMR is the ideal generator for

use in the development, production and

maintenance of radar equipment.

ers are usually the only means to remedy this. But not with the ¸SMR: the high output power provided by all models eliminates the need for such a costly component.

dBc (1 Hz)

–40.0

–50.0

–60.0

–70.0

–80.0

–90.0

–100.0

–110.0

–120.0

–130.0

–140.0

2 4 68 2 4 68 2 4 68 2 4 68 2 4 68

10 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz

SSB phase noise at 10 GHz

Microwave Signal Generator ¸SMR 3

P in dBm

24 22

0.01 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40

Typical max. output level as a function of frequency (with the options ¸SMR-B15 and ¸SMR-B17)

¸SMR 20

¸SMR 27/30/40

¸SMR 30/40

¸SMR 40

¸SMR 27/30/40

f in GHz

FM and FSK

The FM modulator has a modulation

bandwidth from DC to 5 MHz. Digital fre-

quency shift keying (FSK) is possible with

data rates from 0 Hz to 2 MHz.

Simultaneous modulation modes

All modulation modes of the ¸SMR

can be combined. This allows the genera-

tion of complex modulation signals for

modern communication and location sys-

tems. The combination of pulse modula-

tion and FM simulates Doppler effects or

chirp signals. Simultaneous AM and

pulse modulation provides the types of

signal occurring in pulse radar applica-

tions with rotating antenna. The combi-

Pulse generator option

The optional Pulse Generator ¸SMR-B14 is an ideal complement to the pulse modulator. It generates single

generators with AM and FM modulation capability. The option also includes an LF generator for sinewave and squarewave signals from 0.1 Hz to 10 MHz.

nation of FM and AM can be used to

check fading effects of FM receivers.

and double pulses with pulse frequencies up to 10 MHz. The pulse generator can also be triggered externally and operated in the external gate mode. The pulse width and delay are user-selectable over a wide range.

Digital frequency and level sweeps

The digital frequency sweep with step times from 10 ms allows convenient frequency response measurements on microwave circuits. The start and stop frequencies are user-selectable. A trigger input enables synchronous operation with external equipment.

The 20 dB level sweep allows, for example, amplifier or mixer compression to be determined.

The signal generator

AM/FM/Scan modulator option

The optional AM/FM/Scan Modulator ¸SMR-B5 added to the base models turns them into fully-fledged signal

–3 dB

–60 dB

600 MHz/ms

-3 dB

-60 dB

Spectrum or scalar network analyzer

X output

X input

DUT

600 MHz/ms

4 Microwave Signal Generator ¸SMR

Network analysis with the ¸SMR as a synthesized sweep generator

The synthesized sweep generator

Analog ramp sweep option

The analog ramp sweep mode corresponds to the analog sweep of classic sweep generators except that the sweep is fully synchronized over the complete range. In this way, the excellent frequency accuracy of digital step sweeps is achieved on the whole, and this at much higher sweep rates of min. 600 MHz/ms at frequencies >2 GHz.

In conjunction with scalar network analyzers or suitable spectrum analyzers, realtime adjustment of microwave filters can be performed, for example.

To mark important frequency ranges such as filter bandwidths or the position of attenuation poles, the ¸SMR has 10 user-selectable frequency markers which can be output as pulse markers at the marker output (TTL level) or alternatively modulated on the RF level as level markers (level reduction of 1 dB).

The use of the ¸SMR in conjunction with a scalar network or spectrum analyzer is illustrated by the figure at the bottom of page 4.

Without ¸SMR-B23/-B24/-B25

Internal synthesizer

With ¸SMR-B23/-B24/-B25

Mechanical RF relays

LO RF

Step Attenuator ¸ SMR-B15/-B17

SIGNAL GENERATOR

300kHz ... 3.3GHz SMIQ 03 1084.8004.03

FREQ

FREQUENCY LEVEL ANALOG MOD VECTOR MOD DIGITAL MOD DIGITAL STD LF OUTPUT SWEEP LIST MEM SEQ UTILITIES

STBY

MHz LEVEL

100. 000 000 0

STATE POWER RAM P CONTROL

----- Global for VECTOR MOD + DIGITAL MOD + DIGITAL STD -------IMPAIRMENT STATE LEAKAGE IMBALAN CE QUADRAT URE OFFSE T IQ SWAP

CALIBRATE

QUICK SELECT

MENU 1ASSIGN MENU 2

- 30.0

OFF ON OFF EXT_ANALOG

OFF ON 0 % 0 % 0 deg NORM INV

dBm

PRESET LOCALERROR

FREQ

LEVEL

SAVE

RETURN SELECT

HELPSTATUS

DATA INPUT

dB V

456

dB (m)

RCL

ENTER

MENU / VARIATION

MOD

ON/OFF

REVERSE POWER

MADE IN GERMANY

¸SMR as an upconverter for digitally modulated signals

The ¸SMR as an upconverter

IF input option

Vector signal generators such as the ¸SMIQ generate all types of digitally modulated signals up to 6.4 GHz. To generate signals up to 40 GHz, the ¸SMR offers upconversion capability by means of the IF input option. A typical application is shown by the figure above. The I/Q Modulation Generator ¸AMIQ supplies the I and Q signals (1) required for modulating the Vector Signal Generator ¸SMIQ.

The modulated RF signal of the ¸SMIQ (2) is applied directly to the IF input of the ¸SMR. At the RF output of the ¸SMR, the converted, digitally modulated signal of the ¸SMIQ is brought out (3). In the example illustrated above, the selective circuits of the DUT separate the wanted signal from unwanted components generated during upconversion.

Alternatively, suitable external bandpass filters can be used.

DATA

BIT CLOCK

SYMBOL

CLOCK

Ω

RF 50

MAX 50 W

I channel

Q channel

Microwave Signal Generator ¸SMR 5

EasyWheel – the trick with the click

Transparent menu structure

The EasyWheel makes it extremely simple to operate the ¸SMR user interface.

Turn

Just turn the wheel to go to the next menu item, and then press the wheel to perform the desired function.

There is no easier way to operate a measuring instrument!

Click

Turn

6 Microwave Signal Generator ¸SMR

Specifications

Specifications are valid under the following conditions: 30 minutes warm-up time, specified environmental conditions met, calibration cycle adhered to and total calibration performed. Data designated "nom." apply to design parameters and are not tested. Data designated "overrange" or "underrange" are not warranted.

Frequency range

¸SMR20

Without option ¸SMR-B11 With option ¸SMR-B11

¸SMR27

Without option ¸SMR-B11 With option ¸SMR-B11

¸SMR30

Without option ¸SMR-B11 With option ¸SMR-B11

¸SMR40

Without option ¸SMR-B11 With option ¸SMR-B11

Resolution

Without option ¸SMR-B3 With option ¸SMR-B3

Setting time (to within <1 × 10–6) after IEC/IEEE-bus delimiter

Reference frequency Standard Option ¸SMR-B1

Aging (after 30 days of operation) 1 × 10–6/year <1 × 10–7/year

Temperature effect (0°C to 55°C) 2 × 10–6 <1 × 10

Warm-up time – 15 min

Output for internal reference

Frequency Level, V

(EMF, sinewave)

rms

Source impedance

Input for external reference

Frequency Permissible frequency drift Input level, V Input impedance

rms

Spectral purity

Spurious signals Harmonics

30 MHz <f ≤20 GHz

f >20 GHz

Subharmonics

f ≤20 GHz f >20 GHz

Nonharmonics (>50 kHz from carrier)

f ≤20 GHz f >20 GHz

SSB phase noise (f = 10 GHz, 10 kHz from carrier, 1 Hz bandwidth, CW, FM off)

Residual FM, rms (f = 10 GHz, FM off)

0.3 kHz to 3 kHz

0.03 kHz to 20 kHz

Level

Maximum level without option ¸SMR-B23/-B24/-B25

Frequency range ¸SMR20 ¸SMR27/30/40

Without option ¸ SMR-B15

With option ¸ SMR-B15

0.01 GHz to <1 GHz >+13 dBm >+12 dBm

1 GHz to <18 GHz >+11 dBm >+10 dBm >+8 dBm >+7 dBm

18 GHz to 20 GHz >+10 dBm >+8 dBm >+7 dBm >+5 dBm

>20 GHz to 27 GHz – – >+11 dBm >+9 dBm

>27 GHz to 30 GHz – – >+9 dBm >+7 dBm

>30 GHz to 40 GHz – – >+9 dBm >+7 dBm

1 GHz to 20 GHz 10 MHz to 20 GHz

1 GHz to 27 GHz 10 MHz to 27 GHz

1 GHz to 30 GHz 10 MHz to 30 GHz

1 GHz to 40 GHz 10 MHz to 40 GHz

1 kHz

0.1 Hz

<10 ms + 2 ms/GHz

10 MHz 1 V 50 Ω

10 MHz

–6

3 × 10

0.1 V to 2 V 50 Ω

<–55 dBc <–40 dBc

<–65 dBc <–30 dBc

<–60 dBc <–54 dBc

<–83 dBc

<20 Hz <200 Hz

Without option ¸ SMR-B15/-B17

–10

With option ¸ SMR-B15/-B17

/°C

Maximum level with option ¸SMR-B23/-B24/-B25, normal mode (IF input off)

Frequency range ¸SMR20 ¸SMR27/30/40

Without option ¸ SMR-B15

With option ¸ SMR-B15

Without option ¸ SMR-B15/-B17

With option ¸ SMR-B15/-B17

0.01 GHz to <1 GHz >+13 dBm >+12 dBm

1 GHz to <18 GHz >+10 dBm >+9 dBm >+7 dBm >+6 dBm

18 GHz to 20 GHz >+8 dBm >+6 dBm >+5 dBm >+3 dBm

>20 GHz to 27 GHz – – >+8 dBm >+6 dBm

>27 GHz to 30 GHz – – >+6 dBm >+4 dBm

>30 GHz to 40 GHz – – >+6 dBm >+4 dBm

Minimum level of all models

Without option ¸SMR-B15/-B17

−20 dBm (underrange <−20 dBm)

With option ¸SMR-B15/-B17

−130 dBm

Resolution 0.1 dB or 0.01 dB,

selectable

Total deviation (level = 0 dBm)

Frequency response (level = 0 dBm)

f ≤20 GHz f >20 GHz

<1 dB <1.4 dB

<0.5 dB, typ. <0.3 dB <0.7 dB, typ. <0.4 dB

Impedance 50 Ω

SWR <2

Setting time after IEC/IEEE-bus delimiter

<10 ms With option ¸SMR-B15/-B17, with switching in attenuator

<25 ms

Range for non-interrupting level setting 20 dB (overrange >20 dB)

Residual level7) with switchoff via RF OFF

Without option ¸SMR-B15/-B17 With option ¸SMR-B15/-B17

nom. <–70 dBm

nom. <–140 dBm

Linear amplitude modulation with option ¸SMR-B5

Operating modes internal, external AC/DC

Modulation depth

0% to 100%

Resolution 0.1%

Setting accuracy

AM distortion

(AF = 1 kHz, m <80%)

<4% of reading + 1%

(f >50 MHz, AF = 1 kHz, m = 60%)

f <1 GHz f ≥1 GHz

Modulation frequency response (m = 60%)

<3%

<1%

f <1 GHz

DC to 50 kHz

<3 dB f ≥1 GHz

20 Hz to 20 kHz DC to 50 kHz

<1 dB

<3 dB

Incidental ϕM with AM, peak value (AF = 1 kHz, m = 30%)

EXT1, EXT2 modulation input Input impedance Input voltage V

for selected modulation depth

<0.4 rad

50 Ω/600 Ω

10)

or 100 kΩ 1 V (high/low indication for inaccuracy >3%)

Logarithmic amplitude modulation with option ¸SMR-B5 (SCAN AM)

Operating modes internal, external

Dynamic range 30 dB (overrange >30 dB)

Sensitivity ±0.1 dB/V to ±10 dB/V

Resolution 0.01 dB

Rise/fall time (10%/90%) <10 µs

EXT1, EXT2 modulation input

Input impedance Input voltage range

50 Ω/600 Ω –6 V to +6 V

10)

or 100 kΩ

Microwave Signal Generator ¸SMR 7

Frequency modulation with option ¸SMR-B5

Operating modes internal, external AC/DC

Maximum deviation

≤15.625 MHz >15.625 MHz to 31.25 MHz >31.25 MHz to 62.5 MHz >62.5 MHz to 125 MHz >125 MHz to 250 MHz >250 MHz to 500 MHz >500 MHz to <1 GHz

1 GHz to <2 GHz 2 GHz to 10 GHz

>10 GHz to 20 GHz >20 GHz

39.0625 kHz

78.125 kHz

156.25 kHz

312.5 kHz 625 kHz

1.25 MHz

2.5 MHz 5 MHz 10 MHz 20 MHz 40 MHz

Resolution <1%, min. 10 Hz

Setting accuracy (AF = 1 kHz) <5% of reading + 20 Hz

FM distortion (AF = 1 kHz, half max. deviation) <0.5 %

Modulation frequency range DC to 5 MHz

Modulation frequency response <3 dB

Carrier frequency offset with FM

≤15.625 MHz >15.625 MHz to 31.25 MHz >31.25 MHz to 62.5 MHz >62.5 MHz to 125 MHz >125 MHz to 250 MHz >250 MHz to 500 MHz >500 MHz to <1 GHz

1 GHz to <2 GHz 2 GHz to 10 GHz

>10 GHz to 20 GHz >20 GHz

EXT1, EXT2 modulation input

Input impedance Input voltage V

for selected deviation

0.39063 Hz + 1% of deviation

0.78125 Hz + 1% of deviation

1.5625 Hz + 1% of deviation

3.125 Hz + 1% of deviation

6.25 Hz + 1% of deviation

12.5 Hz + 1% of deviation 25 Hz + 1% of deviation 50 Hz + 1% of deviation 100 Hz + 1% of deviation 200 Hz + 1% of deviation 400 Hz + 1% of deviation

50 Ω/600 Ω

10)

or 100 kΩ 1 V (high/low indication for inaccuracy >3%)

ASK modulation with option ¸SMR-B5

Operating modes external

Maximum modulation depth 90 %

Resolution 0.1%

Data rate 0 Hz to 200 kHz

Rise/fall time (10%/90 %) <10 µs

EXT1 modulation input

Input impedance Input level

50 Ω/600 Ω TTL/HCT signal, selectable

10)

or 100 kΩ

polarity

FSK modulation with option ¸SMR-B5

Operating modes external

Maximum deviation

≤15.625 MHz >15.625 MHz to 31.25 MHz >31.25 MHz to 62.5 MHz >62.5 MHz to 125 MHz >125 MHz to 250 MHz >250 MHz to 500 MHz >500 MHz to <1 GHz

1 GHz to <2 GHz 2 GHz to 10 GHz

>10 GHz to 20 GHz >20 GHz

39.0625 kHz

78.125 kHz

156.25 kHz

312.5 kHz 625 kHz

1.25 MHz

2.5 MHz 5 MHz 10 MHz 20 MHz 40 MHz

Data rate 0 Hz to 2 MHz

Rise/fall time (10%/90 %) <10 µs

EXT1 modulation input

Input impedance Input level

50 Ω/600 Ω TTL/HCT signal, selectable

10)

or 100 kΩ

polarity

Pulse modulation

Operating modes external, internal with option

¸SMR-B14

On/off ratio

Rise/fall time (10%/90%)

Minimum pulse width

62.5 MHz to 125 MHz

11)

>125 MHz to 450 MHz >450 MHz

With level control on (ALC ON) With level control off (ALC OFF)

>80 dB

<50 ns <20 ns <12 ns

500 ns 25 ns

12)

Maximum pulse pause

With level control on (ALC ON) With level control off (ALC OFF)

40 ms any

Minimum pulse/pause ratio

With level control on (ALC ON) With level control off (ALC OFF)

1/100 any

Maximum pulse repetition frequency

62.5 MHz to 125 MHz

>125 MHz to 450 MHz >450 MHz

1 MHz 2 MHz 10 MHz

Pulse delay typ. 50 ns

Video feedthrough V

<20 mV

PULSE modulation input

Input level

TTL/HCT signal or selectable switching thresholds at +0.5 V or –2.5 V

Input impedance

50 Ω (max. 2 W, overload protection) or 10 kΩ

Simultaneous modulation

FM (FSK) is independent of AM (SCAN AM, ASK) and pulse modulation. Reduced AM bandwidth for simultaneous AM (SCAN AM, ASK) and pulse modulation.

¸SMR-B23/-B24/-B25 IF input option

¸SMR-B23 ¸SMR-B24 ¸SMR-B25

IF input

Frequency range Level Frequency response SWR

DC to 700 MHz <0 dBm typ. <5 dB <2

DC to 700 MHz <0 dBm typ. <7 dB <2

40 MHz to 6 GHz <0 dBm typ. <7 dB <2

RF output

Frequency range LO level SWR

1 GHz to 20 GHz

<–6 dBm <2

2 to 27/30/40 GHz

<–3 dBm <2

1 GHz to 20 GHz

<0 dBm <2

Conversion loss (IF input/RF output)

With option R&S SMR-B15/-B17

13)

3 dB to 18 dB

3 dB to 23 dB

3 dB to 23 dB Without option ¸SMR-B15/-B17

3 dB to 16 dB

3 dB to 19 dB

LF generator with option ¸SMR-B5

Frequency range Resolution

0.1 Hz to 10 MHz

0.1 Hz

Waveforms sinewave, squarewave

Frequency drift <1 × 10

–4

Frequency response (up to 500 kHz) <0.5 dB

Distortion (up to 100 kHz) <0.5% (RL >200 Ω,

level = 0.5 V)

Open-circuit voltage Vp (LF connector)

Resolution Setting accuracy (at 1 kHz, V

= 1 V)

40 mV to 4 V 1 mV

1.5%

Output impedance approx. 10 Ω

Frequency setting time (after IEC/IEEE-bus delimiter)

<10 ms

Microwave Signal Generator ¸SMR 8

¸SMR-B14 pulse generator option

Operating modes single or double pulse (auto-

matically or externally triggered), delayed pulse (externally triggered), gate mode (external)

Active trigger edge positive or negative

Pulse repetition period

Resolution Accuracy

Pulse width

Resolution Accuracy

Pulse delay

Resolution Accuracy

Double pulse

Resolution Accuracy

Trigger delay Jitter

100 ns to 85 s 5 digits, min. 20 ns

−4

<1 × 10

20 ns to 1 s 4 digits, min. 20 ns

−4

<1 × 10

+ 3 ns

20 ns to 1 s 4 digits, min. 20 ns

−4

<1 × 10

+ 3 ns

60 ns to 1 s 4 digits, min. 20 ns

−4

<1 × 10

+ 3 ns

typ. 50 ns <10 ns

PULSE modulation input

Input level

TTL/HCT signal or selectable switching thresholds

Input impedance

at +0.5 V or –2.5 V 50 Ω (max. 2 W, overload protection) or 10 kΩ

SYNC output TTL/ACT signal, (RL ≥50 Ω),

40 ns pulse width

PULSE/VIDEO output TTL/ACT signal (RL ≥50 Ω)

Digital sweep, sweep in discrete steps

RF sweep, AF sweep

Operating modes

automatic, single-shot, manual or externally triggered,

linear or logarithmic Sweep range Step width (lin) Step width (log)

user-selectable

0.01% to 100 %

Level sweep

Operating modes

automatic, single-shot, man-

ual or externally triggered,

logarithmic Sweep range Step width

0 dB to 20 dB

0.01 dB to 20 dB

Step time

Frequency sweep Level sweep

Resolution

10 ms to 5 s

1 ms to 5 s

0.1 ms

Markers 10, user-selectable

MARKER output signal TTL level, selectable polarity

X output 0 V to 10 V

BLANK output signal TTL level, selectable polarity

¸SMR-B4 ramp sweep option

14)

RF sweep

Operating modes

automatic, single-shot, man-

ual or externally triggered;

start/stop, center frequency/

span Sweep range Resolution Accuracy

user-selectable

1 kHz

(0.005% (of deviation)/

(sweep time/s) + reference

error

Sweep time 10 ms to 100 s (switchover

time ≤30 ms at 1GHz, 2GHz, 10 GHz and 20 GHz)

Max. sweep rate

≤15.625 MHz >15.625 MHz to 31.25 MHz >31.25 MHz to 62.5 MHz >62.5 MHz to 125 MHz >125 MHz to 250 MHz >250 MHz to 500 MHz >500 MHz to <1 GHz

1 GHz to <2 GHz 2 GHz to 10 GHz

>10 GHz to 20 GHz >20 GHz

2.34375 MHz/ms

4.6875 MHz/ms

9.375 MHz/ms

18.75 MHz/ms

37.5 MHz/ms 75 MHz/ms 150 MHz/ms 300 MHz/ms 600 MHz/ms 1200 MHz/ms 2400 MHz/ms

MARKER output signal TTL level, selectable polarity

X output 0 V to 10 V

BLANK output signal TTL level, selectable polarity

List mode frequency and level values

can be stored in a list and will be set fast

Permissible level variation 20 dB

Operating modes auto, single-shot, manual or

externally triggered

Maximum number of channels 2003

Step time Resolution

10 ms to 5 s

0.1 ms

Memory for instrument setups

Storable setups 50

Remote control

System IEC60625 (IEEE 488)

Rev. 2003

Command set SCPI 1995.0

Connector 24-contact Amphenol

IEC/IEEE-bus address 0 to 30

Interface functions SH1, AH1, T6, L4, SR1, RL1,

1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14)

¸SMR20: level <+5 dBm without or <+ 3 dBm with option ¸SMR-B23 or ¸SMR-B25; ¸SMR27/30/40: level <+2 dBm without or <+0 dBm with option ¸SMR-B24.

10 MHz ≤f ≤30 MHz: typ. <–50 dBc.

Specifications for harmonics above 20 GHz (¸SMR20), 27 GHz (¸SMR27), 30 GHz (¸SMR30) and 40 GHz (¸ SMR40) only typical.

With option ¸SMR-B19/-B20 the maximum level is likely to be reduced by up to 0.1 dB /GHz. The maximum level is reduced by up to –2 dB in the temperature range 35 °C to 55°C.

From 10 MHz to 50 MHz, the specified total deviation is only valid in the temperature range 15 °C to 35°C. The deviation outside this temperature range is likely to be higher b y max. 0.7 dB.

From 10 MHz to 50 MHz, the specified frequency response is only valid in the temperature range 15°C to 35 °C.

Residual level at set RF.

The modulation depth adjustable with adherence to the AM specifications continuously decreases from 6 dB below the maximum level up to the maximum level.

This specification does not apply a) to non-interrupting level setting (ATTENUATOR MODE FIXED) if option ¸SMR-B15/-B17

is used, b) to levels below –7 dBm without option ¸SMR-B15/-B17, c) to external level control mode (EXT ALC).

10)

50 Ω or 600 Ω selectable by means of internal jumpers.

11)

Pulse modulation not specified for frequencies <62.5 MHz.

12)

Only valid if level control set to OFF (ALC OFF).

13)

Option ¸SMR-B15/-B17 in 0 dB position. The conversion loss can be increased by 10 dB to 110 dB in 10 dB steps using optio n ¸SMR-B15/-B17. With option ¸SMR-B19/-B20, the conversion loss increases by up to 0.1 dB/GHz.

14)

Cannot be combined with frequency modulation. Pulse modulation possible, but not specified.

PP1, DC1, DT1, C0

Microwave Signal Generator ¸SMR 9

General data

Ordering information

Temperature resistance

Operating temperature range

Storage temperature range

Climatic resistance

Damp heat

Mechanical resistance

Vibration, sinusoidal

Vibration, random

Shock

Electromagnetic compatibility

Leakage (carrier frequency <1 GHz) <0.1 µV (induced in a two-turn

Radiated susceptibility 10 V/m

Power supply 100 V to 120 V (AC), 50 to 400 Hz

Safety standards DIN EN61010-1 Rev. 1994,

Conformity marks VDE-GS, CSA, NRTL/C

Dimensions (W × H × D) 427 mm × 88 mm × 450 mm

Weight <12 kg when fully equipped

0°C to +55°C; meets DIN EN 60068-2-1 Rev. 1998 and DIN EN60068-2-2 Rev. 1998 –40°C to +70°C

95% relative humidity, cyclic test at +25°C/+40°C, meets DIN EN60068-2-30 Rev. 1998

5 Hz to 150 Hz, max. 2 g at 55 Hz, 55 Hz to 150 Hz, 0.5 g const.; meets DIN EN60068-2-6 Rev. 1998, DIN EN61010-1 and MIL-T-28800D class 5 10 Hz to 300 Hz, acceleration

1.2 g (rms) 40 g shock spectrum, MIL-STD-810E, MIL-T-28800D, class 3/5

meets

EN61326-1 Rev. 1997 + A1 Rev. 1998 and EN55011 Rev. 1998 + A1 Rev. 1999 (EMC directive of EU)

coil 25 mm in diameter at a distance of 25 mm from any surface of the enclosure)

200 V to 240 V (AC), 50 to 60 Hz, autoranging, max. 200 VA

IEC61010-1 Rev. 1995, UL3111-1, CAN/CSA-C22.2 No. 1010.1-B97

meets

More information at

www.rohde-schwarz.com

(search term: SMR)

Certified Quality System

ISO 9001

DQS REG. NO 1954 QM

Certified Environmental System

ISO

14001

DQS REG. NO 1954 UM

Designation Type Order No.

Microwave Signal Generator

1 GHz to 20 GHz 1 GHz to 27 GHz 1 GHz to 30 GHz 1 GHz to 40 GHz

Accessories supplied

Power cable, operating manual, adapter

3.5 mm, female

2.9 mm, female

Options

OCXO Reference Oscillator ¸SMR-B1 1104.5485.02

Frequency Resolution 0.1 Hz ¸SMR-B3 1104.5585.02

Ramp Sweep ¸SMR-B4 1104.5685.02

AM/FM/Scan Modulator ¸SMR-B5 1104.3501.02

Frequency Extension

0.01 GHz to 1 GHz

Pulse Generator ¸SMR-B14 1104.3982.02

RF Attenuator for ¸SMR20/271)¸SMR-B15 1104.4989.02

RF Attenuator for ¸SMR30/401)¸SMR-B17 1104.5233.02

Rear Connectors for RF, AF (¸SMR20)

Rear Connectors for RF, AF (¸SMR27/30/40)

IF Input DC to 700 MHz (¸SMR20)

IF Input DC to 700 MHz (¸SMR27/30/40)

IF Input 0.04 GHz to 6 GHz (¸SMR20)

Low Leakage ¸SMR-B31 1164.7910.02

Recommended extras

Service Kit ¸SMR-Z1 1103.9506.02

Cable for Network Analyzers ¸SMR-Z3 1134.9772.02

19“Rack Adapter ¸ZZA-211 1096.3260.00

Adapter (¸SMR20)

3.5 mm, female

3.5 mm, male N, female N, male

Adapter (¸SMR27/30/40)

2.9 mm, female

2.9 mm, male N, female N, male

Factory-fitted option.

¸SMR20 ¸SMR27 ¸SMR30 ¸SMR40

¸SMR20 ¸SMR27/30/40

¸SMR-B11 1104.4250.02

¸SMR-B19 1104.6281.02

¸SMR-B20 1104.6381.02

¸SMR-B23 1104.5804.02

¸SMR-B24 1104.6100.02

¸SMR-B25 1135.1998.02

1104.0002.20

1104.0002.27

1104.0002.30

1104.0002.40

1021.0512.00

1021.0529.00

1021.0535.00

1021.0541.00

1036.4790.00

1036.4802.00

1036.4777.00

1036.4783.00

R&S® is a registered trademark of Rohde &Schwarz GmbH&Co. KG · Trade names are trademarks of the owners · Printed in Germany (Pe sk)

www.rohde-schwarz.com

PD 0758.0822.32 · ¸SMR · Version 05.00 · June 2004 · Data without tolerance limits is not binding · Subject to change

Atec SMR User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

High-performance, cost-effective and reliable up to 40 GHz

Ease of operation

Wide frequency range

High output power

High-precision level control

Three instruments in one

Sweep capabilities

Memory

The CW generator

The signal generator

The synthesized sweep generator

Transparent menu structure

Specifications

Ordering information