Author: Guo Genfang

Press: Machinery Industry Press

Release date: 20 14- 10-22

ISBN:978-7- 1 1 1-47884-3

Pricing: 25.0.

Folio: 16 Introduction to Chapter 1 1 Communication and Communication System 1 1/basic composition of communication system1. Division and propagation of radio waves 4 12 Main contents and characteristics of this course 5 Important knowledge points 6 Summary of this chapter 7 Thinking problems and exercises 7 Chapter 2 Small signal frequency selective amplifier 8 2 1 resonant circuit 821frequency selective characteristics of parallel resonant circuit 9 2 12 impedance transformation circuit13. Resonant amplifier 17 22 1 single resonant tank resonant amplifier 17 222 multistage single resonant tank resonant amplifier 20 23 centralized frequency selective amplifier 2 1 filter 2 1 232 Application example of centralized frequency selective amplifier 24 24 fault diagnosis 25 24 1 Fault Diagnosis of Amplifier Circuit 2 5 242 Fault Diagnosis of Resonant Circuit and Filter 27 Important Knowledge Points 28 Resonant Power Amplifier 32 3 1 1 Basic Working Principle 32 3 12 Decomposition of Cosine Current Pulse 33 3 13 Output Power and Efficiency. 34 32 Characteristic Analysis of Resonant Power Amplifier 35 32 1 Influence of Load Characteristics of Resonant Power Amplifier 35 322 on Working State of Resonant Power Amplifier 36 323 and Influence of VBB on Working State of Resonant Power Amplifier 37 33 Resonant Power Amplifier and Frequency Multiplier Circuit 38 3 1 DC feed circuit of resonant power amplifier 38 332 filter matching network 38 333 resonant power amplifier application circuit 40 334 class frequency multiplier application circuit 4 1 34 broadband high-frequency power amplifier 42 34 1 transmission line transformer 42 342 power synthesis technology 44 343 broadband high-frequency power amplifier circuit 46 important knowledge points 47 Summary of this chapter 47 Thinking questions and exercises 48 Chapter 4 is correct. Working principle of sine wave oscillator 49 4 1 Basic principle of oscillation 49 465 438+0 Starting condition and equilibrium condition of oscillator 50 4 12 Basic working principle of sine wave oscillator 5142/3-point oscillator 5 1 422 Inductive 3-point oscillator 52 4. 23 Capacitive three-point oscillator 52 424 Comparison of characteristics of two three-point oscillators 53 425 Improved capacitive three-point oscillator 53 426 Frequency stability and amplitude stability of oscillator 55 43 Quartz crystal oscillator 56 43 1 Timing crystal and its characteristics 57 432 Parallel quartz crystal oscillator 58 433 Series quartz crystal oscillator 58 44 Fault diagnosis 59. Knowledge point 6 1 Summary of this chapter 6 1 Thinking and exercise 62 Chapter 5 Amplitude modulation, demodulation and mixing circuit 64 5 1 fundamentals of amplitude modulation, demodulation and mixing 65 51/multiplier and its frequency conversion function 65 5 12 fundamentals of amplitude modulation 66 5/klc. 3 Basic principle of amplitude modulation 74 5 14 basic principle circuit 82 53 amplitude detection circuit 83 53 1 quality index of envelope detector 83 532 diode envelope detection circuit 84 533 synchronous detection circuit 85 54 mixing circuit 87 54 1 transistor mixing circuit 87 542 integrated analog multiplier mixing circuit 88 543 mixing interference 89 55 fault diagnosis 90 55/Kloc. Fault diagnosis of control circuit 9 1 552 Fault diagnosis of amplitude detection circuit 9 1 553 Fault diagnosis of mixing circuit 92 Important knowledge points 93 This chapter summarizes 94 thinking questions and exercises 95 Chapter VI Angle modulation and demodulation circuit 98 6 1 Basic characteristics of angle modulation signal 98 6 1 Concepts of instantaneous frequency and instantaneous phase. Frequency spectrum and bandwidth of 98 6 12 FM signal and phase modulation signal 99 6 13 angle modulation signal1kloc-0/62 FM circuit 104 62 1 varactor direct FM circuit 104 622 indirect. 08 63 frequency discriminator circuit 109 63 1 frequency discriminator characteristics and implementation method 109 632 slope discriminator 1 11634 pulse counting discriminator 65438+/kloc. The function of 65438 dynamic gain control circuit 1 18 7 12 Application example of automatic gain control circuit 120 72 automatic frequency control circuit 120 72 1 working principle 120 722 automatic frequency control circuit. 8+022731Basic principle of PLL/Basic principle of frequency synthesis of KLOC-0/22732/Application example of KLOC-0/27733 PLL13/Important knowledge points 133 Summary of this chapter/Reflections on KLOC-0/33. 36 8 1 High Frequency Small Signal Frequency Selective (Resonant) Amplifier 136 82 High Frequency Class C Resonant Power Amplifier 139 83LC Capacitor Three-Point Oscillator 14 1 84 Quartz Crystal Oscillator 144 85 Amplitude Modulator/Kloc-. Polar tube direct FM oscillator 152 88 phase detector 154 89 mixer 156 8 10 phase-locked FM and frequency discriminator158165438 AM broadcast superheterodyne radio assembly. Assembly and debugging of walkie-talkie/assembly and debugging of integrated circuit FM/AM radio1738 179 8 14 practical AM and transmitting circuit 186 part of thinking and practicing reference answers 189 appendix text symbols and explanations/KLOC-.