Doppler Effect in Radar: The apparent frequency of electromagnetic or sound waves depends on the relative radial motion of the source and the observer. If source and observer are moving…
CW Doppler Radar Block Diagram: A simple CW Doppler Radar Block Diagram, such as the one shown in Figure 16-14, sends out continuous sine waves rather than pulses. It uses…
Engineering Physics Interview Questions and Answers: 1. Define stress on a body. Ans. The internal force developed per unit area in the body during the application of external force or…
Radar Systems Articles: Basic Radar System Block Diagram: Basic Radar System Block Diagram consists of a transmitter and a receiver, each connected to a directional antenna. The transmitter is capable…
Electronic Communication Articles: This Electronic Communication Articles which includes the following topics: Principles of Communication Systems Need of Modulation in Communication System Bandwidth Requirement in Communication System External Noise in…
Primary Standard: Primary Standard - One arrangement is a carefully designed quartz crystal oscillator operating in the range 50 to 100 kHz, having a low temperature coefficient, constant amplitude output…
What is Backward Diode? A tunnel diode designed to provide a small peak current (IP of the order of IV) may be employed to advantage in the reverse direction, for…
Gunn Diode Working Principle: A practical Gunn Diode Working Principle consists of a slice like the one shown in Figure 12-24, sometimes with a buffer layer between the active layer…