The dynamic range expansion method of the spectrum analyzer with tracking generator (TG) by utilizing a low-noise amplifier.
Application
The dynamic range of spectrum analyzer with tracking generator is limited by the TG output level. The dynamic range might be insufficient in the case of the measurement which require a large TG output power, such as the measurement of RF shielding.
Solution
Utilizing a low-noise amplifier, the dynamic range of the spectrum analyzer with TG can be expanded.
This is an example of dynamic range expansion of the signal analyzer (real-time spectrum analyzer) MSA538TG by utilizing the low-noise amplifier MAP302.
w/o Low-noise amplifier
Connection of Fig. 1(NORM OFF)
Connection of Fig. 1(NORM ON)
Connection of Fig. 2(keep Fig. 1 NORM ON)
with Low-noise amplifier
Connection of Fig. 3（NORM OFF）
Connection of Fig. 3（NORM ON）
Connection of Fig. 4 （keep Fig. 3 NORM ON）
Lower limit of the dynamic range is 15dB expansion with Low-noise amplifier.
System configuration
| Signal analyzer [MSA538TG] | x 1 |
| Spectrum Analyzer [MSA338TG] | x 1 |
| Spectrum Analyzer [MSA438TG] | x 1 |
| Low noise amplifier [MAP302] | x 1 |
Products introduction
Please feel free to contact us.
If you want to verify 5G, customize a radio wave shield box, or need product repair, please do not hesitate to contact us about any small matter.
