Joseph F. White has studied, worked, and taught in all aspects of microwave semiconductor materials, control diodes, and circuit applications. He is thoroughly grounded in the physics and math­ ematics of the field, but has primarily the engineer's viewpoint, combining basic knowledge with experience and ingenuity to gen­ erate practical designs under constraints of required performance and costs of development and production. As a result of his teach­ ing experience and numerous technical papers and oral presenta­ tions, he has developed a clear, well-organized writing style that makes this book easy to use as a self-teaching text, a reference volume, and a design handbook. Dr. White believes that an engineer must have a good understand­ ing of semiconductor physics, a thorough knowledge of microwave circuit theory, at least an elementary acquaintance with transistor drivers, and the ability to check and refine a microwave circuit on a computer terminal to be qualified for modern, creative design of microwave semiconductor control components. These subjects are well covered in approximately the first half of the book; the second half treats the general and specific design of switches, at­ tenuators, limiters, duplexers, and phase shifters, with many ex­ amples drawn from his experience and that of others.

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I The PN Junction.- A. The Need to Understand Low Frequency Diode Behavior.- B. Silicon - The Semiconductor.- C. The PN Depletion Zone.- D. Junction Potential.- E. Diffusion and Drift Currents.- F. Rectification and the I-V Law.- G. Depletion Zone Width Modulation - The Depletion C(V) Law.- H. Reverse Voltage Breakdown.- References.- Questions.- II PIN Diodes and the Theory of Microwave Operation.- A. The PIN Diode - An Extension of the PN Junction.- B. Microwave Equivalent Circuit.- C. High RF Power Limits.- References.- Questions.- III Practical PIN Diodes.- A. Basic Parameters - I Region Thickness and Area.- B. Table of Typically Available PIN Diodes.- C. Definition of Characteristics.- References.- Questions.- IV Binary State Transistor Drivers.- A. What The Driver Must Do.- B. The Driver as a Logic Signal - Power Supply Buffer (TTL Compatibility).- C. Switching Speed.- D. High Power Reverse Bias (Enhanced) Leakage Current Supply.- E. Fault Detection Circuits.- F. Complementary Drivers.- References.- Questions.- V Fundamental Limits of Control Networks.- A. Introduction.- B. The Simple Loss (or Isolation) Formula.- C. The General Three-Port SPST Equivalent Circuit.- D. Switching Limits.- E. Duplexing Limits.- F. Phase Shifting Limits.- G. Summary.- References.- Questions.- VI Mathematical Techniques and Computer Aided Design (CAD).- A. Introduction.- B. CAD Mathematical Analysis Approaches.- C. FORTRAN Computer Programming.- References.- Questions.- VII Limiters and Duplexers.- A. Introduction to Practical Circuit Designs.- B. How Limiters Function.- C. Coaxial Duplexers.- D. High Frequency, Waveguide Limiters.- E. Integrated Circuit Limiters.- F. Bulk Limiters.- References.- VIII Switches and Attenuators.- A. Broadband Coaxial Switches.- B. Coaxial High Power.- C. Switched Duplexers.- D. Waveguide Switches.- E. Stripline Switches.- F. Microstrip Switching.- G. Bulk Effect Switching.- References.- IX Phase Shifters and Time Delay Networks.- A. Introduction.- B. Switched Path Circuits.- C. Transmission Phase Shifters.- D. Reflection Phase Shifters.- E. Schiffman Phase Shifters.- F. Continuous Phase Shifters.- References.- Answers.- Appendices.- A. Constants and Formulas.- B. Material Properties.- C. Thermal Resistance Calculations.- D. Coaxial Lines.- E. Microstrip.- F. Stripline.- G. Waveguide.- H. Stripline Backward Wave Hybrid Coupler.- I. Bias Blocks and Returns.- J. The Smith Chart.- References and Bibliography.