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Bài giảng Electronics circuits for communications - Chapter 1: Introduction to radio communication systems - Đinh Quốc Hùng

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ELECTRONICS CIRCUITS FOR  
COMMUNICATIONS  
Presenter Name: Dinh Quoc Hung  
Presentation Date: 2016-2017  
Email: [email protected]du.vn  
Goal of the course  
• Explain, analyze, and calculate the classical and modern RF  
communication systems, the principles of functional blocks in  
practice.  
• Understand effects of noise and nonlinearity distortion on RF  
systems and system parameters such as noise figure, input/output  
referred noise, 1-dB compression point, third-order intercept  
point, sensitivity and dynamic ranges.  
• Explain, analyze and calculate the IF circuits and IF filters.  
• Explain, analyze and calculate electronic circuits for  
communication systems, including LNA, Mixer, Power Amplifier,  
Oscillators and Frequency synthesizer  
• Explain, analyze and calculate RF noise, low noise amplifiers.  
• Explain, analyze, and calculate analog modulation and  
demodulation circuits in practice.  
GRADING:  
✓Attendanc
✓Exercise/H
30 %  
✓Mini Projec
✓Final Exam
REFERENCES:  
[1] Jack Smith, Modern Communication  
Circuits, Second Edition, WCB/McGraw-  
Hill, 1998.  
[2] James Hardy, Electronic  
Communications Technology, Prentice-  
Hall, 1986.  
[3] Behzad Razavi, RF Microelectronics,  
Second Edition, Prentice Hall, Sep 22,  
2011.  
CONTENTS:  
Chapter 1: Introduction to Radio  
Communication Systems  
Chapter 2: Basic Concepts in RF Design  
Chapter 3: RF Oscillator and Frequency  
Synthesizers.  
Chapter 4: Mixers - Frequency Conversion  
Circuits  
Chapter 5: Power Amplifiers  
Chapter 6: Low-Noise Amplifier  
Chapter 7: Analog Modulation  
Welcome  
CHAPTER 1: INTRODUCTION TO  
RADIO COMMUNICATION SYSTEMS  
Gain, Attenuation, and Decibels  
Radar System  
Introductions  
Introductions  
Introductions  
Introductions  
Introductions  
Introductions  
Broadcast Transmitter  
Introductions  
Introductions  
Transceiver - Vinaphone  
Introductions  
Introductions  
Transceiver’s data :  
• Gain before repair : S21 = 22 dB  
• Gain improved greatly after repair: S21 = 50.32 dB  
• Gain flatness: < 1 dB: excellent  
Introductions  
IMD (Intermodulation Distortion) of VinaPhone transceiver after being repaired:  
• Center frequency 945.500 MHz, 2-tone spacing: 1MHz, Span: 7MHz  
• IMD = 50 dBc @ 20 watt. This transceiver meets FCC standards  
Introductions  
Typical PA Test Specification  
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