Microwave Transistors

Microwave Transistors: Silicon bipolar transistors were first on the microwave scene, followed by GaAs field-effect transistors. Indeed, FETs now have noticeably lower noise figures, and in the C band and…

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Waveguide Isolator and Circulators

Waveguide Isolator and Circulators: It often happens at microwave frequencies that coupling must be strictly a one-way affair. This applies for most microwave generators, whose output amplitude and frequency could…

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Antenna Coupling

Antenna Coupling: Antenna Coupling : Low and medium frequency antennas are the ones least likely to be of resonant effective height and are therefore the least likely to have purely…

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Fundamentals of Transmission Lines

Fundamentals of Transmission Lines: Fundamentals of Transmission Lines (in the context of this book) are considered to be impedance-matching circuits designed to deliver power (RF) from the transmitter to the antenna,…

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Mechanical Design of Overhead Lines Articles

Mechanical Design of Overhead Lines Articles: Introduction to Overhead Line: Electric power can be transmitted or distributed either by means of underground  cables or by overhead line. The underground cables…

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Testing of Materials Articles

Testing of Materials Articles: Direct Current Resistivity Method: The specimen shape and the electrode arrangement should be such that the Direct Current Resistivity Method can be easily calculated. For a…

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High Voltage Testing of Electrical Apparatus Articles

High Voltage Testing of Electrical Apparatus Articles: Classification of High Voltage Testing Methods: Classification of High Voltage Testing Methods are divided into two groups: Power Frequency Withstand Voltage Impulse withstand…

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High Voltage Laboratory Design Articles

High Voltage Laboratory Design Articles: High Voltage Laboratory Equipments: A High Voltage Laboratory Equipments is expected to carry out withstand and/or flashover tests at high voltages on the following transmission…

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