Swept Spectrum Analyzers

Swept Spectrum Analyzers

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The traditional method for implementing a spectrum analyzer is the swept heterodyne block diagram. Similar to a radio receiver, the spectrum analyzer is automatically tuned (swept) over the band of interest. This type of analyzer has been gradually replaced by the FFT analyzer at low frequencies, but the swept analyzer remains the dominant technology in the radio frequency range and above.

Chapter Contents:

  • 5.1 The Wave Analyzer
  • 5.2 Heterodyne Block Diagram
  • 5.3 The Swept Spectrum Analyzer
  • 5.4 Practical Considerations
  • 5.5 Input Section
  • 5.6 Resolution Bandwidth
  • 5.7 Sweep Limitations
  • 5.8 Specialized Sweep Modes
  • 5.9 Local Oscillator Feedthrough
  • 5.10 Detector
  • 5.11 The Digital IF Section
  • 5.12 The Tracking Generator
  • 5.13 FFT Versus Swept
  • 5.14 The Hybrid Analyzer
  • References

Inspec keywords: radio receivers; fast Fourier transforms; diagrams; spectral analysers

Other keywords: radio receiver; swept heterodyne block diagram; FFT analyzer; dominant technology; swept spectrum analyzers; radio frequency range

Subjects: Integral transforms; Network and spectrum analysers; Radio links and equipment

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