Introduction to Microwaves 1945 Ramo GE Research Lab 1st Edition

Description: Title of your page goes here Introduction to Microwaves 1945 Ramo GE Research Lab 1st Edition This is a 138 page, 5 1/2” x 8 1/2”, hardcover book titled Introduction to Microwaves. The book was written by Simon Ramo, Ph.D. Research Laboratory, General Electric Company. The book was copyrighted and published in 1945 by McGraw-Hill Book Company. This is one of the 1945 fourth impressions of the first edition. As quoted and paraphrased from the first three paragraphs of the authors Preface - “Microwaves” is a name popularly given to electricity when its frequency of alternation is in billions of cycles per second. The frequency ratio of millions when compared with power frequencies and of thousands when compared even with radio-broadcast frequencies makes microwaves fascinating and important. It means for many whose acquaintance with electricity is only with the lower frequency range that there is a need for further attention to fundamentals. For such readers this text will prove helpful. Physical pictures and viewpoints are described that will be useful both to those doing active work in this relatively new branch of engineering and to others who desire merely a better appreciation of it. Those who have spent the last several years investigating and trying to apply microwaves have been asked to offer simple explanations of the often seemingly mysterious yet fundamental characteristics of extremely high frequency electricity. What makes waves go down the inside hollow conducting pipe at high frequency but not at low frequency? Do microwaves obey different laws than do low-frequency waves? How is it that high-frequency current can be drawn from electrodes of an electronic tube when the electron current in the tube does not even flow to those electrodes? May we still speak of impedance?” The book includes several within the text line-drawn diagram illustrations to aid understanding. Contents in the form of chapter titles and subtitles are: Similarities Exist between Microwaves and Lower Frequency Electricity – Wave Action ; Basic Similarities ; Laws of Electricity for Whole Frequency Spectrum ; Changes in Magnitude ; Skin Effect. Microwaves are Very Different from Lower Frequency Electricity – Circuits at Low Frequency ; Low-frequency Transmission Line ; Microwave Band ; Common Microwave Concepts. Microwaves Practically Do Not Penetrate Metal – Perfect Conductor ; Imperfect Conductor. Electrons Travel Slowly; Thus Transit Time Becomes an Important Concept – Review of Fundamentals ; Electron Transit Time ; Input Effect ; Velocity Modulation Tube ; Summary. Moving Electrons Induce Current – Current Flow Due to Motion of a Distribution of Charges. Time Delay in Electromagnetics Becomes Important for Microwaves – Elapsed Time ; Retardation ; Time Lag, a Universal Effect ; Inductance of a Circuit. Retardation and Radiation Influence Basic Circuit Behavior at Ultra-high Frequency – Simple Circuit at Low Frequency ; Distribution of Charges ; Effect of Retardation on Basic One-loop Circuit. Displacement Current Is as Effective as More Common Current Flow – Displacement Flux ; Induced Electromotive Force ; Maxwell’s Equations. A Resonant Cavity Is a Self-enclosed Circuit – Current Distribution ; Electric-field and Charge 7Distributions ; Magnetic-field Distribution. All Conducting and Dielectric Boundaries are Wave Guides – Importance of Boundary Conditions ; Open-wire Guide. Most Engineering Concepts of Transmission Lines Are Valid for Microwaves – Distributed-constant Concept ; LC Approach. Hollow Pipes Are Practical Guides for Microwaves – Rectangular Wave Guide ; Field Distributions ; Frequency Characteristics ; Wave Velocity. Microwave Phenomena May Be Thought Of as the Result of Combining a Series of Various Waves – Space Harmonics. Voltage, Current, and Impedance Concepts Have Practical Use at the Highest Frequencies – Voltage Concept ; Current Concept ; Impedance Concept. A Microwave Radiating System Combines Concepts from D.C. to Light-wave Frequencies Condition - The book is clean and complete. The cover binding is square and both cover and pages are tightly bound. The light gray-green cover cloth with burgundy spine edge print is unfaded. Cover cloth wear consists only of very lightly bumped but still sharp corners. There is a previous owners paste down label on the inside of the front cover. There are no other markings in the book. Pages are crisp and bright. There are no torn, missing, loose, creased or marked pages. The book is in very good+ condition. The book will be shipped in a hardcover box via First Class Mail.

Price: 14.99 USD

Location: Lakewood, Ohio

End Time: 2023-11-15T16:19:42.000Z

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