MG3694A

The Anritsu MG3694A is a high-performance synthesized microwave signal generator covering the 2 GHz to 40 GHz frequency range in its base configuration. It is part of the MG3690A series, renowned for its exceptional phase noise, high output power, and comprehensive modulation capabilities. Highly configurable, its range can be extended down to 0.1 Hz with optional low-frequency coverage and up to 110 GHz or beyond with external multipliers. The MG3694A is designed for demanding applications in R&D, manufacturing, and defense, offering analog ramp sweep, step sweep, and full modulation capabilities.

Microwave Millimeter-Wave RF and Microwave Signal Generation

Specifications

Frequency

Parameter	Value
Minimum Frequency	2 GHz
Maximum Frequency	40 GHz
Frequency Resolution	0.01 Hz
Frequency Range	2 GHz to 40 GHz (extendable to 0.1 Hz with options, up to 110 GHz with multipliers)
Internal Reference Frequency Accuracy	< ±2 x 10^-8 over 0 °C to 55 °C
Internal Reference Aging Rate	< 5 x 10^-10 per day
External Reference Input Impedance	50 Ω
Phase Offset Range	-360° to +360°
Phase Offset Resolution	0.1°

Output

Parameter	Value
Maximum Output Power	+13 dBm
Output Power Range	+13 dBm to -15 dBm (down to -120 dBm with Option 2 step attenuator)
Phase Noise	-94 dBc/Hz @ 10 kHz offset, 10 GHz carrier

Modulation

Parameter	Value
Modulation	AM, FM, Phase (ΦM), Pulse
Sweep Modes	Step Sweep, List Sweep, Analog Ramp Sweep
Option 7 LF Generator Waveforms	Sine, Square, Triangle, Positive Ramp, Negative Ramp, Gaussian Noise, Uniform Noise
Option 7 LF Generator Sine Wave Range	0.1 Hz to 10 MHz

General

Parameter	Value
Reference Oscillator	Internal 10 MHz ovenized crystal oscillator (OCXO)
Interfaces	GPIB (IEEE-488.2), RS-232
Display	Backlit LCD
Warm-up Time	1 hour (typical from standby)
Memory Storage Registers	10 non-volatile storage registers plus default setup
Secure Mode	Standard feature, erases all user memory

Physical

Parameter	Value
Power Supply	90 to 264 VAC, 47 to 440 Hz
Dimensions (W×H×D)	133 mm H x 429 mm W x 597 mm D
Weight	18 kg

Amplitude

Parameter	Value
Maximum Output Power (2 to 20 GHz)	+13 dBm
Maximum Output Power (20 to 40 GHz)	+6 dBm
Maximum Output Power with Option 15 (2 to 20 GHz)	+19 dBm
Maximum Output Power with Option 15 (20 to 40 GHz)	+13 dBm
Amplitude Resolution	0.01 dB
Output Impedance	50 Ω nominal
Output SWR	< 2.0 typical
Step Attenuator Range	110 dB (with Option 2)
Step Attenuator Resolution	10 dB steps

Spectral Purity

Parameter	Value
Harmonics (2 to 20 GHz)	< -30 dBc
Harmonics (20 to 40 GHz)	< -30 dBc
Spurious (Non-Harmonics)	< -60 dBc
SSB Phase Noise at 10 GHz (100 kHz offset)	-102 dBc/Hz

Analog Modulation

Parameter	Value
Pulse Modulation On/Off Ratio	> 80 dB
Pulse Modulation Rise/Fall Time	< 10 ns typical
Modulation Sources	Internal or External

Sweep and Operating Modes

Parameter	Value
Step Sweep Dwell Time Range	1 ms to 99 s
Number of Sweep Points	Up to 1601 (step sweep)
Sweep Trigger Modes	Auto, External, Single, GPIB

System Connectivity and Interfaces

Parameter	Value
RF Output Connector	K female (2.92 mm)
GPIB Command Set	SCPI, Native (Anritsu 60A/68B/69B compatible)
RS-232 Baud Rate	Up to 115.2 kbps
External Connections	BNC female (Trigger In, AM In, FM In, Phase In, Pulse In, 10 MHz Ref In/Out)

Physical and Environmental

Parameter	Value
Operating Temperature Range	0 °C to 50 °C
Storage Temperature Range	-40 °C to 75 °C
Relative Humidity	5% to 95% non-condensing
Altitude (Operating)	Up to 4,600 meters
Rack Unit Height	3U

Power Requirements

Parameter	Value
Power Consumption	350 VA maximum

Hardware and Software Options

Parameter	Value
Option 2	Mechanical Step Attenuator
Option 3	Ultra-Low Phase Noise
Option 4	10 MHz to 2 GHz frequency coverage
Option 22	0.1 Hz to 10 MHz Audio Frequency coverage
Option 15	High Output Power

Performance

Parameter	Value
Level Resolution	0.01 dB
Frequency Switching Time (Standard)	< 40 ms
Frequency Switching Time (with Option 12)	< 1.1 ms (typical)
SSB Phase Noise at 10 GHz (10 kHz offset, with Option 3)	-115 dBc/Hz (typical)

Inputs & Outputs

Parameter	Value
Reference Output Frequency	10 MHz
Reference Output Level	1 Vp-p (typical into 50 Ω)

Options

Parameter	Value
Option 5 Analog Modulation	Adds AM, FM, and Phase Modulation capabilities
Option 6 Internal Pulse Generator	Provides pulse delays, pulse widths, and multi-pulse capabilities
Option 7 Internal LF Generator	Provides internal AM, FM, and PM source with two independent waveforms (requires Option 5)
Option 12 Fast Switching	Improves frequency switching speed to < 1.1 ms typical
Option 14 Auxiliary RF Output	Provides 2 GHz to 20 GHz rear-panel auxiliary RF output
Option 18 Rear Panel RF Output	Moves the RF output connector to the rear panel
Option 20 Scan Modulation	Provides up to 60 dB modulation depth, DC to 50 kHz (requires Option 5)

Power

Parameter	Value
AC Line Voltage Range	90 to 264 Vac
AC Line Frequency Range	48 Hz to 440 Hz

Technology

Synthesized Signal Generation

Applications

RF & Microwave Testing, Radar, Communications