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Broadband RF and microwave amplifier design employing real-frequency techniques

Broadband RF and microwave amplifier design employing real-frequency techniques

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Radio Frequency and Microwave Power Amplifiers. Volume 1: Principles, Device Modeling and Matching Networks — Recommend this title to your library

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The Chapter introduces novel techniques to design wideband amplifiers employing “real-frequency techniques" (RFTs). In essence, RFTs are wideband semi-analytic design methods to realize lossless matching networks and real frequency (RF) and microwave amplifiers with optimum circuit topologies. After an introductory section, the Chapter discusses: a simplified real-frequency technique (SRFT) to design microwave amplifiers, a SRFT single-stage microwave amplifier design algorithm, amplifier stability, design practical aspects, ultra-wideband microwave amplifier design using commensurate transmission lines, characteristic impedances physical realization, characteristic impedance calculations, an algorithm for broadband multistage microwave amplifiers design via SRFTstep-by-step multistage amplifier design, a microwave power amplifier with mixed lumped and distributed elements design.

Chapter Contents:

  • 6.1 Introduction
  • 6.2 Simplified real-frequency technique (SRFT) to design microwave amplifiers
  • 6.3 SRFT single-stage microwave amplifier design algorithm
  • 6.3.1 Result of optimization
  • 6.3.2 Results of optimization
  • 6.4 Stability of the amplifier
  • 6.5 Practical aspects of the design
  • 6.6 Design of an ultra-wideband microwave amplifier using commensurate transmission lines
  • 6.6.1 Result of optimization
  • 6.6.2 Practical notes
  • 6.7 Physical realization of characteristic impedances
  • 6.8 A hypothetical example of the calculation of characteristic impedance
  • 6.9 Design of broadband multistage microwave amplifiers via SRFT
  • 6.10 Algorithm: step-by-step multistage amplifier design
  • 6.11 Examples
  • 6.12 Design of a microwave power amplifier with mixed lumped and distributed elements: comparative results
  • 6.12.1 Operation class of 50 W power amplifier
  • 6.12.2 Design of matching networks for the power amplifier
  • 6.12.3 Design of lumped element power amplifier
  • 6.12.4 Design with commensurate transmission lines
  • 6.12.5 Design with mixed lumped and distributed elements
  • APPENDIX
  • References

Inspec keywords: wideband amplifiers; electric impedance; radiofrequency amplifiers; microwave amplifiers; network synthesis

Other keywords: amplifier stability; characteristic impedances; optimum circuit topologies; commensurate transmission lines; lumped elements; real-frequency techniques; distributed elements; RF amplifier design; lossless matching networks; simplified real-frequency technique; wideband semianalytic design methods; broadband amplifier design; microwave amplifier design

Subjects: Amplifiers; Microwave circuits and devices; General circuit analysis and synthesis methods

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