1. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Antenna and Microwave Laboratory Babol Noshirvani University of Technology, Iran In the name of God Microwave Equipments

2. Spectrum Analyzer 8562A

3. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Spectrum Analyzer 8562A

4. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir

5. Another Oscilloscope ??? Like an oscilloscope Oscilloscope in time domain Spectrum analyzer in frequency domain (selectable)

6. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Is Frequency Domain Better? In time domain, all frequency components of signals are summed together In freq domain, complex signals are separated into their frequency components

7. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir What does SA do? Processes the signal Displays the spectral content of the input signal within a selected range of frequencies i.e., signal power(db) versus frequency Measures frequency, power, harmonic content, modulation, spurs, and noise, etc…

8. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Types of RF Spectrum Analyzer Two common ways to measure RF signals: Fourier Transform: Swept-Tuned or Swept-Toned: Capture time domain signals information Digitizes time domain signal (digital sampling) Perform Fourier transform Fast, but limits in frequency range, sensitivity “Sweep” across frequency range Display the frequency of interest Large frequency range Widely used

9. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Three Primary Function Keys Frequency (Hz) Amplitude (Abs dBm, Rel dB) Span (Hz) -> (how big the “window” we want to view)

10. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Principals of a Spectrum Analyzer 10

11. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Typical Output Displayed

12. Antenna and Microwave Laboratory Babol Noshirvani University of Technology zakeri@nit.ac.ir Typical Output Displayed

13. Synthesized Sweeper 8341B

14. Vector Network Analyzer (VNA)