The Anritsu MG3693B is a synthesized signal generator delivering RF and microwave frequencies from 2 GHz to 30 GHz, with external multiplier capability extending coverage to 325 GHz and beyond. It has frequency resolution to 10 mHz and typical output power of +23 dBm, supporting amplitude accuracy of ±0.4 dB. The instrument integrates advanced modulation capabilities – AM (0 to 90%), FM (up to 10 MHz deviation at 8 MHz rates or 100 MHz deviation at 100 Hz rates), and PM (up to 400 radians deviation at 1 MHz rates) – alongside technology-leading phase noise performance and spectral purity. Internal generators deliver seven modulating waveforms for AM, FM, and phase modulation, while custom waveform download and IQ modulation via IF input enable flexible signal generation for R&D, manufacturing, and system-level testing in wireless communications, radar, and advanced microwave applications.
Technical Specifications
Frequency and Output Power
• Frequency range: 2 GHz to 30 GHz (extendable to 325 GHz+ with external multipliers)
• Frequency resolution: 10 mHz, 0.01 Hz, 1 MHz options
• Maximum leveled output power: +23 dBm typical
• High-power options: +26 dBm at 20 GHz, +21 dBm at 40 GHz, +16 dBm at 50 GHz
• Filtered output: +19 dBm typical at 20 GHz
• Amplitude accuracy: ±0.4 dB Modulation and Signal Generation
• AM: 0 to 90%, log or linear, DC to 100 kHz rates
• FM: Four modes – up to 10 MHz deviation at 8 MHz rates; 100 MHz deviation at 100 Hz rates
• PM: Up to 400 radians deviation at 1 MHz rates
• Modulation types: AM, FM, Pulse, Phase, plus EAM, T1, and PAM4 digital formats
• Internal generators: Seven waveforms per AM/FM/phase channel
• Custom waveform support: Download to internal memory
• Pulse generation: Internal generator with swept delay for target simulation (singlet, doublet, triplet, quadruplet pulses)
• IQ modulation: IF input option for external baseband up-conversion Phase Noise and Spectral Performance
• Phase noise: Typical -90 dBc/Hz at 10 kHz offset; -94 dBc/Hz at 1 kHz offset (related models)
• Ultra-low phase noise option (Option 3) significantly reduces single-sideband noise
• DDC path (10 MHz to 2.2 GHz): 30–50 dB improvement over conventional microwave synthesizers
• DDS path (below 10 MHz): Ultra-fine resolution with outstanding phase noise
• Spectral purity: Lowest spectral content – Key Features • Multi-format modulation with seven internal waveform options per channel
• Flexible pulse triggering and swept-delay capability for radar simulation
• Option 2 step attenuator available; reduces RF output power when selected
• IF input for seamless external IQ signal integration
• Technology inherited from MG3690B series architecture – Typical Applications • Wireless communications R&D and manufacturing test
• Radar system development and validation
• Advanced microwave component characterization
• Digital modulation and signal integrity analysis
• Moving target simulation and pulse analysis – Compatibility & Integration The MG3693B operates as part of the MG3690B family, supporting external multiplier chains for millimeter-wave extension and IF input interfaces for modulated signal sourcing. Step attenuator and ultra-low phase noise options enable system-specific configuration.
