Rohde & Schwarz SMP Series Microwave Signal Generators
2 models with full specifications from Rohde & Schwarz.
The Rohde & Schwarz SMP series consists of high-precision microwave signal generators designed for testing radar, communication equipment, and high-frequency components. Operating up to 20 GHz, these instruments are engineered for demanding laboratories and production lines where spectral purity, frequency agility, and stable signal parameters are required. The series includes the Rohde & Schwarz SMP02 and Rohde & Schwarz SMP22, sharing a common physical form factor, backlit LCD, and GPIB control interface, while differing in their base frequency coverage, weight, and modular options.
- Maximum Frequency
- 20 GHz
- Frequency Resolution
- 0.1 Hz
- Phase Noise
- <-105 dBc/Hz (at 10 kHz offset, 10 GHz carrier)
- Setup Memory
- 50 complete instrument configurations
Models in this series
Frequency Coverage and Level Control
The primary distinction between the models in this series lies in their base frequency configurations. The Rohde & Schwarz SMP22 natively covers a broad frequency band from 10 MHz to 20 GHz. In contrast, the Rohde & Schwarz SMP02 has a standard range of 2 GHz to 20 GHz, though its low-end limit can be extended down to 10 MHz by installing Option SMP-B11.
Level control also varies by model. The Rohde & Schwarz SMP02 offers an output range of -20 dBm to +13 dBm in its standard configuration, which can be modified to cover -140 dBm to +10 dBm using the Option SMP-B15 attenuator. It provides a level resolution of 0.1 dB. The Rohde & Schwarz SMP22 specifies a high level accuracy of <±0.9 dB at 0 dBm across its entire 10 MHz to 20 GHz range, outputting through a PC 3.5 mm female RF connector.
Modulation and Sweep Capabilities
Both instruments support sophisticated signal modulation, though they deploy it through different configurations and options:
- Rohde & Schwarz SMP02: Supports standard AM, FM, and pulse modulation out of the box. Phase modulation is available via Option SMP-B20. It features flexible sweep modes including Digital RF, AF (LF), and level sweeps in both linear and logarithmic modes.
- Rohde & Schwarz SMP22: Offers modular expansions for customized signal profiles. It can be equipped with an optional phase modulator (Option SMP-B5), optional pulse modulators (Options SMP-B2/B3), and an optional pulse generator (Option SMP-B4).
Physical Characteristics and System Integration
The SMP series instruments share a standardized physical design, measuring 435 mm in width, 147 mm in height, and 570 mm in depth. Both house a backlit LCD and support GPIB (IEEE-488.2) interfaces for automated systems. However, their internal architectures result in different weights: the Rohde & Schwarz SMP02 weighs 21 kg, while the Rohde & Schwarz SMP22 weighs 24 kg.
Both models support a reference clock system based on a 10 MHz signal. The Rohde & Schwarz SMP02 can use its standard 10 MHz reference or be upgraded with a High-Stability Oven Quartz Option (SMP-B1). The Rohde & Schwarz SMP22 provides a standard 10 MHz internal reference and a corresponding reference output.
Frequently asked questions
- Can the Rohde & Schwarz SMP02 generate signals below 2 GHz?
- Yes. While the standard minimum frequency of the Rohde & Schwarz SMP02 is 2 GHz, it can be extended down to 10 MHz by adding Option SMP-B11.
- What RF connector is used on the Rohde & Schwarz SMP22 output?
- The Rohde & Schwarz SMP22 uses a PC 3.5 mm female RF output connector.
- How many instrument states can be saved on these generators?
- Both the Rohde & Schwarz SMP02 and the Rohde & Schwarz SMP22 feature non-volatile setup memory capable of storing up to 50 complete instrument configurations.