VHF / UHF Filters and Multicouplers

Application of Air Resonators

Inbunden, Engelska, 2010

Av Bernard Piette, Bernard (Consultant Engineer) Piette

2 169 kr

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This book describes the various devices used in radio communication and broadcasting to achieve high selectivity filtering and coupling. After providing background in the basics of microwave theory and more detailed material — including a special chapter on precision and errors in measurement - the reader will find detailed descriptions, manufacturing processes, and for the most useful instances a number of worked-through formulas, which will allow engineers and technicians to design circuits or components for filtering or coupling applications. Content is covered in this format across a broad range of fields including coaxial cavities, combline filters, bandpass and pass-reject duplexers, multicouplers, circulators, low-noise amplifiers, helix resonators, and much more.

Produktinformation

Utgivningsdatum2010-01-15
Mått163 x 241 x 24 mm
Vikt590 g
FormatInbunden
SpråkEngelska
Antal sidor285
FörlagISTE Ltd and John Wiley & Sons Inc
ISBN9781848211735

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Energiteknik inom Naturvetenskap och teknik

Bernard Piette is a practicing engineer. After working in submarine acoustics, HF electronics, phase-locked loops and telecommunications, he has dedicated his efforts to the design of coaxial cavities and other narrow-band resonators for the last 20 years. He has been a technical manager in several companies specializing in this field, and has designed hundreds of prototypes for numerous French private mobile radio networks such as Radiocom 2000, Rubis and Acropol.

Preface xiIntroduction xviiChapter 1. Reminders and General Points 11.1. Lines 11.2. Adaptation and stationary waves 41.3. Smith chart 61.4. Power in a line 61.5. Line sections 71.6. Lines with losses 9Chapter 2. Measurements in HF 112.1. Material 112.2. The power bench 112.3. Measurements on the network analyzer 14Chapter 3. Resonant Cavities 253.1. Resonance 253.2. Coaxial cavities 283.3. Quarter-wave cavities 29Chapter 4. Fabrication and Tuning of Cavities 474.1. Standard structures 474.2. Materials 534.3. Assembly 564.4. Temperature stability 584.5. Cavity tuning 70Chapter 5. The Band-pass Filter 835.1. The band-pass function 835.2. Calculation of a Tchebycheff band-pass 855.3. Technologies 87Chapter 6. The Combline Filter 976.1. Architecture 976.2. Dimension calculations. Dishal’s Method 1056.3. Tuning of filters 114Chapter 7. Channel Multiplexing 1297.1. Definitions 1297.2. The duplexer 1297.3. The combiner 140Chapter 8. Auxiliary Devices 1578.1. Introduction 1578.2. Circulators 1578.3. The antenna alarms 1658.4. Loads and attenuators 1708.5. Reception amplifiers 1778.6. The impedance adaptor 1868.7. The 2nd harmonic rejecter 186Chapter 9. Directive Couplers 1899.1. Introduction 1899.2. Technologies 1919.3. The hybrid transformer 1949.4. The 180° hybrid ring 1969.5. The wireline 1989.6. The “groundless” coupler 1999.7. The “catnose” coupler 2019.8. Discrete-elements coupler 2029.9. Numerical data 2049.10. Applications 210Chapter 10. Helical Resonators 21310.1. Introduction 21310.2. Functioning 21410.3. Structures 21510.4. Tapping and coupling 21910.5. Quality coefficient 22010.6. Set-up rules 22310.7. Applications 224Chapter 11. Multicouplers 22511.1. Transmitter multicouplers (TX) 22511.2. Receiver multicouplers (RX) 23511.3. TX/RX multicouplers 23611.4. TMA 24011.5. Power and intermodulations 24311.6. Multiband coupling 254Chapter 12. Utilities 25712.1. BASIC programs 25712.2. Varia 264Chapter 13. Various Questions and Exploratory Ways 27113.1. The coupler without intrinsic loss 27113.2. Infinite rejection band-pass 27513.3. Helix TX multicoupler 27613.4. Conclusion 278Bibliography 281Index 283