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Superheterodyne and Homodyne Receivers

Superheterodyne and Homodyne Receivers

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Microwave Receivers with Electronic Warfare Applications — Recommend this title to your library

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This chapter discusses superheterodyne and homodyne receivers for electronic warfare applications. It covers the following: intermodulation generated in a mixer; preselector (tracking RF filters); YIG filters; RF amplifiers in front of mixer; logarithmic amplifiers; operating principle and characteristics of mixers; single-diode mixers; single balanced mixers; double balanced mixers; image rejection mixers; image-enhanced mixers; harmonically pumped mixers; stability of oscillators; YIG-tuned oscillators; voltage-controlled oscillators; oscillators with phase-locked loops; direct frequency synthesizers; and crystal bandpass filters.

Chapter Contents:

  • 5.1. Introduction
  • 5.2. Principle of Operation
  • 5.3. Intermodulation Generated in a Mixer
  • 5.4. Preselector (Tracking RF Filters)
  • 5.5. YIG Filters
  • 5.6. RF Amplifiers in Front of Mixer
  • 5.7. Logarithmic Amplifiers
  • 5.8. Operating Principle and Characteristics of Mixers
  • 5.9. Single-Diode Mixers
  • 5.10. Balanced (Single Balanced) Mixers
  • 5.11. Double Balanced Mixers
  • 5.12. Image Rejection Mixers
  • 5.13. Image-Enhanced Mixers
  • 5.14. Harmonically Pumped Mixers
  • 5.15. Stability of Oscillators
  • 5.16. YIG-Tuned Oscillators
  • 5.17. Voltage-Controlled Oscillators (VCOs)
  • 5.18. Oscillators with Phase-Locked Loops
  • 5.19. Direct Frequency Synthesizers
  • 5.20. Crystal Bandpass Filters
  • 5.21. Example of a Superheterodyne Receiver
  • 5.22. Scanning Superheterodyne Receivers
  • 5.23. Homodyne Receivers
  • 5.24. Some Possible Applications of Homodyne Receivers
  • 5.25. Summary
  • References

Inspec keywords: voltage-controlled oscillators; phase locked loops; homodyne detection; band-pass filters; intermodulation; mixers (circuits); frequency synthesizers; electronic warfare; radiofrequency amplifiers; superheterodyne receivers

Other keywords: tracking RF filter; single balanced mixers; preselector; homodyne receivers; double balanced mixers; single diode mixers; YIG filter; mixer intermodulation; logarithmic amplifier; voltage controlled oscillators; YIG-tuned oscillators; crystal bandpass filters; harmonically pumped mixers; phase locked loops; oscillator stability; image enhanced mixers; RF amplifiers; superheterodyne receivers; direct frequency synthesizers; electronic warfare; image rejection mixers

Subjects: Filters and other networks; Electromagnetic compatibility and interference; Modulators, demodulators, discriminators and mixers; Radio links and equipment; Amplifiers; Oscillators; Electronic warfare

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