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Open 22.6 GHz RF Signal Generator (DSG-22.6GHz)

0.3–22.6 GHz portable RF signal generator, USB-C powered, touchscreen, compact and precise for test, measurement and production lines.

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DSG-22.6GHZ is a compact, high-performance RF source designed to meet the needs of modern test and measurement applications across a wide frequency spectrum. Covering a continuous range from 300 MHz to 22.6 GHz with 1 Hz tuning resolution, this device delivers precision and flexibility in a highly portable form factor.

Engineered for versatility and ease of use, the signal generator features a capacitive touchscreen interface and supports output power levels from 15 dBm to -50 dBm adjustable in 1 dB steps.

The signal generator has filtered and unfiltered output options. It has guaranteed 40 dBc harmonic level up to 0 dBm output.
The unit is powered through a standard USB Type-C interface (5V, 1.5A), making it suitable for both bench-top and field use. Optional support for a 10 MHz external reference input ensures compatibility with precision timing systems.

  • Product Features
    • Frequency Range: 0.3 – 22.6 GHz
    • Tuning resolution: 1 Hz
    • Output Power Level: 15 dBm to -50 dBm, 1 dB steps
    •  ≥ 40 dBc Harmonic / Spurious suppression
    • External Reference Frequency Input: 10 MHz (optional)
    • Tuning speed: 100 μs
    • Frequency Sweep
    • Capacitive Touchscreen
    • Power supply from USB (Type-C) interface 5V, 1.5A
    • Data Interface USB (Type-C) or WIFI
    • Built-in test features: Temperature, Voltage/Current Monitor, PLL Lock Status
    • Size: (114 x 60 x 17 mm)
  • Applications
    • Test Instrumentation
    • Radar Systems
    • Microwave Radio Systems
    • Test of SDRs
    • Research and Development

Electrical Specifications

Test conditions unless otherwise noted: T = 25°C

ParameterMinTypMaxUnits
Frequency Range30022600MHz
Output Power Level-5015dBm
Frequency Resolution1Hz
External Frequency Reference (optional)10 MHz-50dBm
Tuning Speed100μs
DC Supply VoltageUSB (Type-C)
DC Supply Current10001500mA
  • Physical Interfaces
    • RF Output: SMA
    • Refereance CLock Input : SMA
    • Power Supply: USB (Type-C)
     
  • Control Interfaces
    DSG-22.6GHZ can be contolled with 3 opitons
    • USB
    • WIFI
    • Touchscreen Display
    • Web interface over Wifi 
    • Python Interface Over Wifi or USB (Using SCPII commands)

                                                                 Phase Noise Measurement @ 1GHz

                                                                              Example Spectral view

                                                                               Block Diagram


                                                                              Menu Descriptions

We are live on Crowdsupply 

https://www.crowdsupply.com/atek-midas/dsg-22-6-ghz

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18 GHz full span view

Portable Network Graphics (PNG) - 141.03 kB - 09/02/2025 at 22:42

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3 GHz full span view

Portable Network Graphics (PNG) - 142.23 kB - 09/02/2025 at 22:42

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15GHz_Att30_LOPwr7_FullSpan_FilterON.png

15 GHz full span view

Portable Network Graphics (PNG) - 146.71 kB - 09/02/2025 at 22:42

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11 GHz full span view

Portable Network Graphics (PNG) - 141.90 kB - 09/02/2025 at 22:42

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9GHz_Att30_LOPwr7_FullSpan_FilterON.png

9 GHz full span view

Portable Network Graphics (PNG) - 147.03 kB - 09/02/2025 at 22:42

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View all 6 files

  • 1 × ATEK656N5 ATEK656N5 is a sub-octave switchable filter bank covering 2 – 18 GHz frequency band. Filterbank consists of an SP6T switch followed by 6 fixed frequency band pass filters which are followed by another SP6T switch.
  • 2 × ATEK256P3 ATEK256P3 is a wideband absorptive SPDT switch with low loss and high isolation. Frequency of operation starts from low frequencies close to DC, goes up to 18 GHz. Usable bandwidth covers 20 GHz.
  • 2 × ATEK357P4 ATEK357P4 is a wideband 5-bit Digital Step Attenuator with 30 dB attenuation range. Attenuator frequency of operation goes down to Low Frequency close to DC and goes up to 20 GHz. Bias and control voltages of the attenuator are positive, which eliminates the need for negative voltage rails.
  • 1 × LMX2820RTCR Phase Lock Loops - PLL
  • 2 × ATEK569N5 ATEK569N5 is a wideband driver amplifier covering 0.2 to 26 GHz frequency range. ATEK569N5 provides flat gain with single supply voltage. This allows users to easily realize wideband receiver frontends.

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EEEngineer4Ever wrote 09/02/2025 at 22:26 • point

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