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    ebook PDF 《Advanced Techniques in RF Power Amplifier Design》

    《Advanced Techniques in RF Power Amplifier Design》


     PDF 339pages


    Preface xi
    Acknowledgments xv
    1 Class AB Amplifiers 1
    1.1 Introduction 1
    1.2 Classical Class AB Modes 2
    1.3 Class AB: A Different Perspective 9
    1.4 RF Bipolars: Vive La Difference 16
    1.4.1 A Basic RF BJT Model 16
    1.5 On Sweet Spots and IM Glitches 29
    1.6 Conclusions 31
    Reference 32
    2 Doherty and Chireix 33
    2.1 Introduction 33
    2.2 The Doherty PA 34
    2.2.1 Introduction and Formulation 34

    2.2.2 The Classical Doherty Configuration 37
    2.2.3 Variations on the Classical Configuration 42
    2.2.4 Peaking Amplifier Configurations 49
    2.2.5 Doherty PA Matching Topologies 52
    2.2.6 The Multiple Doherty PA 56
    2.2.7 Doherty PA Conclusions 56
    2.3 The Chireix Outphasing PA 58
    2.3.1 Introduction and Formulation 58
    2.3.2 Discussion, Analysis, and Simulation 62
    2.3.3 Variations 69
    2.3.4 Chireix: Conclusions 71
    References 72
    3 Some Topics in PA Nonlinearity 73
    3.1 Introduction 73
    3.2 A Problem, a Solution, and Problems with the
    Solution 74
    3.3 Power Series, Volterra Series, and Polynomials 77
    3.4 Two-Carrier Characterization 89
    3.5 Memory and IM Asymmetry in RFPAs 94
    3.6 PAs and Peak-to-Average Ratios 105
    3.7 Conclusions 109
    References 110
    4 Feedback Techniques 111
    4.1 Introduction 111
    4.2 Feedback Techniques 114
    4.3 Amplitude Envelope Feedback: Configuration and
    Analysis 121
    4.4 Vector Envelope Feedback 137

    4.5 Low Latency PA Design 140
    4.6 Variations 146
    4.7 Conclusions 150
    References 151
    5 Predistortion Techniques 153
    5.1 Introduction 153
    5.2 Third-Degree PA: Predistortion Analysis 156
    5.3 PD Characteristic for General PA Model 163
    5.4 Practical Realization of the Predistorter Function:
    Introduction 177
    5.5 Analog Predistorters 179
    5.6 DSP Predistortion 187
    5.7 Conclusions 194
    References 195
    6 Feedforward Power Amplifiers 197
    6.1 Introduction 197
    6.2 The Feedforward Loop 198
    6.3 AM-PM Correction in the Feedforward Loop 204
    6.4 Error Insertion Coupling 208
    6.5 Third-Degree Analysis of the Generalized
    Feedforward (FFW) Loop 216
    6.5.1 Formulation and Analysis 216
    6.5.2 Tracking Errors 222
    6.5.3 Compression Adjustment 224
    6.5.4 Third-Degree Analysis: Conclusions 228
    6.6 Feedforward Loop Simulation 229
    6.6.1 Effect of AM-PM in Main PA 231
    6.6.2 Gain Compression Adjustment 233

    6.6.3 EPR Change 233
    6.6.4 Gain and Phase Tracking 235
    6.6.5 Multicarrier Simulation 235
    6.7 Feedforward Loop Efficiency Considerations 236
    6.8 Adaption and Correction: Closing the Loop 241
    6.9 Variations 249
    6.9.1 The Double Feedforward Loop 249
    6.9.2 A Feedforward-Enhanced Power Combiner 252
    6.9.3 “Budget” FFW Systems 253
    6.10 Conclusions 255
    References 256
    7 Microwave Power Amplifiers 257
    7.1 Introduction 257
    7.2 Broadband Microwave Power Amplifier Design 259
    7.2.1 Introduction 259
    7.2.2 Broadband Matching Using Network Synthesis 259
    7.2.3 Balanced Amplifiers 270
    7.2.4 Broadband Power Amplifier Design Issues 273
    7.3 Microwave Circuits and MIC Techniques 280
    7.3.1 Introduction 280
    7.3.2 Substrate and Heatsink Materials 281
    7.3.3 MIC Components and Structures 283
    7.4 PA Design Using Prematched Modules 287
    7.4.1 Introduction 287
    7.4.2 Matching Issues for IMTs 287
    7.4.3 Biasing Issues for IMTs 290
    7.4.4 Power Combining of IMTs 291
    7.5 Distributed Amplifiers 293
    7.6 Conclusions 296
    References 297

    Appendix 299
    Notes 299
    Selected Bibliography 300
    Glossary 301
    About the Author 305
    Index 307



    How far(long) the transmitter cover?

    The transmission range depends on many factors. The true distance is based on the antenna installing height , antenna gain, using environment like building and other obstructions , sensitivity of the receiver, antenna of the receiver . Installing antenna more high and using in the countryside , the distance will much more far.

    EXAMPLE 5W FM Transmitter use in the city and hometown:

    I have a USA customer use 5W fm transmitter with GP antenna in his hometown ,and he test it with a car, it cover 10km(6.21mile).

    I test the 5W fm transmitter with GP antenna in my hometown ,it cover about 2km(1.24mile).

    I test the 5W fm transmitter with GP antenna in Guangzhou city ,it cover about only 300meter(984ft).

    Below are the approximate range of different power FM Transmitters. ( The range is diameter )

    0.1W ~ 5W FM Transmitter :100M ~1KM

    5W ~15W FM Ttransmitter : 1KM ~ 3KM

    15W ~ 80W FM Transmitter : 3KM ~10KM

    80W ~500W FM Transmitter : 10KM ~30KM

    500W ~1000W FM Transmitter : 30KM ~ 50KM

    1KW ~ 2KW FM Transmitter : 50KM ~100KM

    2KW ~5KW FM Transmitter : 100KM ~150KM

    5KW ~10KW FM Transmitter : 150KM ~200KM

    How to contact us for the transmitter?

    Call me +8615915959450 OR
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    1.How far you want to cover in diameter ?
    2.How tall of you tower ?
    3.Where are you from ?
    And we will give you more professional advice.

    About Us

    FMUSER.ORG is a system integration company focusing on RF wireless transmission / studio video audio equipment / streaming and data processing .We are providing everything from advice and consultancy through rack integration to installation, commissioning and training.
    We offer FM Transmitter, Analog TV Transmitter, Digital TV transmitter, VHF UHF Transmitter, Antennas, Coaxial Cable Connectors, STL, On Air Processing, Broadcast Products for the Studio, RF Signal Monitoring, RDS Encoders, Audio Processors and Remote Site Control Units, IPTV Products, Video / Audio Encoder / Decoder, designed to meet the needs of both large international broadcast networks and small private stations alike.
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    We are using advanced technology products for all the systems, because we know the high reliability and high performance are so important for the system and solution . At the same time we also have to make sure our products system with a very reasonable price.
    We have customers of public and commercial broadcasters, telecom operators and regulation authorities , and we also offer solution and products to many hundreds of smaller, local and community broadcasters .
    FMUSER.ORG has been exporting more than 15 years and have clients all over the world. With 13 years experience in this field ,we have a professional team to solve customer's all kinds of problems. We dedicated in supplying the extremely reasonable pricing of professional products & services.
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