The Anritsu MG3694C is a high-performance microwave signal generator from the MG3690C series, covering a standard frequency range of 2 GHz to 40 GHz, with low-end extensions available down to 0.1 Hz. Designed for demanding applications like LO substitution, clock generation, radar simulation, and complex signal emulation, the MG3694C offers industry-leading phase noise performance with options like Ultra Low (Option 3) and Premium (Option 3X) phase noise. It features powerful analog modulation, 5 ms switching speeds, and highly configurable output power stages.

Specifications

Frequency

ParameterValue
Minimum Frequency2 GHz (optionally extendable to 0.1 Hz or 10 MHz)
Maximum Frequency40 GHz
Frequency Resolution0.01 Hz

Output

ParameterValue
Maximum Output Power+13 dBm standard (+19 dBm with Option 15)
Output Power Range+13 dBm to -15 dBm standard (leveled), extendable down to -120 dBm with Option 2 Step Attenuator
Phase Noise-115 dBc/Hz typical at 10 kHz offset, 10 GHz carrier (Option 3) / -121 dBc/Hz typical (Option 3X)

Modulation

ParameterValue
ModulationAM, FM, Phase, Pulse require Option 28; External I/Q modulation via IF input requires Option 7
Sweep ModesAnalog Sweep, Step Sweep, List Sweep
Pulse Generator PRF Range0.1 Hz to 10 MHz
Pulse Generator Pulse Width Range25 ns to 167 ms
Pulse Generator Delay Range30 ns to 167 ms
External AM Input Sensitivity1 Vp-p for 100% depth (Linear) or 1 dB/V (Log)

General

ParameterValue
Reference OscillatorInternal 10 MHz reference
InterfacesGPIB (IEEE-488.2), LAN (10/100 Base-T)
DisplayLiquid Crystal Display (LCD) with backlighting
Warm-up Time1 hour (typical) to meet full specifications

Physical

ParameterValue
Power Supply90 VAC to 264 VAC, 47 Hz to 63 Hz
Dimensions (W×H×D)426 mm x 133 mm x 591 mm
Weight18 kg

Frequency Specifications

ParameterValue
Internal Reference Aging Rate± 2.0 x 10^-8 per day standard, ± 5.0 x 10^-10 per day with Option 16
External Reference Input Frequency10 MHz (± 10 Hz)
External Reference Input Amplitude0.5 Vp-p to 2 Vp-p, 50 Ω impedance

Amplitude Specifications

ParameterValue
Amplitude Resolution0.01 dB
Amplitude Accuracy± 1.0 dB typical
Output Impedance50 Ω nominal

Spectral Purity

ParameterValue
Harmonics<-30 dBc at ≤ 20 GHz, <-20 dBc at > 20 GHz to 40 GHz
Non-Harmonics (Spurious)<-60 dBc
Sub-Harmonics<-60 dBc

Analog Modulation

ParameterValue
Pulse Modulation On/Off Ratio> 80 dB
Pulse Modulation Minimum Pulse Width100 ns leveled, 10 ns unleveled
Pulse Modulation Pulse Resolution10 ns
Pulse Generator ModesSingle, doublet, triplet, quadruplet pulse generation
AM Depth Range0% to 90% (linear)

System Connectivity and Interfaces

ParameterValue
RF Output Connector TypeK (female), compatible with 3.5mm and SMA

Physical and Environmental Specifications

ParameterValue
Operating Temperature Range0 °C to 50 °C
Storage Temperature Range-40 °C to +75 °C
Rack Unit (RU) Height3U

Power Requirements

ParameterValue
Power Consumption250 VA maximum

Hardware and Software Options

ParameterValue
Low Frequency Extension OptionsOption 4 (extends minimum frequency to 10 MHz) / Option 5 (extends minimum frequency to 0.1 Hz)
Step Attenuator OptionOption 2 (adds 110 dB step attenuator)
High Power OptionOption 15 (increases maximum leveled power)
Ultra-Low Phase Noise OptionOption 3
Premium Phase Noise OptionOption 3X
High Stability Reference OptionOption 16 (high stability ovenized reference oscillator)
IF Up-conversion OptionOption 7 (adds rear panel input for I/Q modulation)

Pulse Modulation

ParameterValue
Pulse Rise and Fall Time< 10 ns (3 ns typical)

Frequency Modulation

ParameterValue
FM Modulation RateDC to 10 MHz (External, AC/DC coupled); 0.1 Hz to 1 MHz (Internal)
FM Maximum DeviationUp to 40 MHz (carrier dependent, up to 400 MHz with Option 10)

Phase Modulation

ParameterValue
PM Modulation RateDC to 1 MHz (External); 0.1 Hz to 1 MHz (Internal)
PM Maximum DeviationUp to 1600 rad (carrier dependent)

Internal LF Generator

ParameterValue
Internal Modulation WaveformsSine, Square, Triangle, Ramp, Noise
Internal LF Generator Frequency Range0.1 Hz to 1 MHz (Sine); 0.1 Hz to 100 kHz (Square, Triangle, Ramp)

Programming & Emulation

ParameterValue
EmulationsSCPI, HP 8340/41, HP 836xx, HP 8673, Wiltron 6700B

Environmental

ParameterValue
Operating AltitudeUp to 4,600 m
Operating Humidity5% to 95% RH (non-condensing)

RF Output

ParameterValue
RF Output SWR< 2.0 typical (2 GHz to 40 GHz)
Reverse Power Protection30 dBm (1 W) maximum from a 50 ohm source

Sweep

ParameterValue
Number of Sweep Markers20
Number of Sweep Steps1 to 10,000 (step sweep)
Analog Sweep Dwell Time Range30 ms to 99 s (Sweep Time)
Step Sweep Dwell Time Range1 ms to 99 s per step

Inputs & Outputs

ParameterValue
External Reference Output Frequency10 MHz
External Reference Output Amplitude1 Vp-p into 50 ohms nominal
Aux I/O Connector25-pin D-sub, female
GPIB Connector24-pin female, IEEE-488.2
Ethernet ConnectorRJ-45, 10/100 Base-T
Serial Connector9-pin D-sub, male, RS-232

Technology

Synthesized Microwave Signal Generator

Applications

LO substitution, clock generation, radar emulation, RF and microwave device characterization

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