Search results
Antenna Theory - Types of Propagation - In this chapter, let us go through different interesting topics such as the properties of radio waves, the propagation of radio waves and their types.
Wave Propagation – I: Introduction, Definitions, Categorizations and General Classifications, Different Modes of Wave Propagation, Ray/Mode Concepts, Ground Wave Propagation (Qualitative Treatment) – Introduction, Plane Earth Reflections, Space and Surface Waves, Wave Tilt, Curved Earth Reflections.
An antenna is a way of converting the guided waves present in a waveguide, feeder cable or transmission line into radiating waves travelling in free space, or vice versa. An antenna is a passive structure that serves as transition between a transmission line and air used to transmit and/or receive electromagnetic waves.
An antenna is a device that couples currents to electromagnetic waves for purposes of radiation or reception. The process by which antennas radiate can be easily understood in terms of the way in which accelerating charged particles or time-varying currents radiate, which is discussed in Section 10.1.
This Course will cover the fundamentals of Antenna, Dipole Antennas, Monopole Antennas, Loop Antennas, Slot Antennas, Linear and Planar Arrays, Microstrip Antennas (MSA), MSA Arrays, Helical Antennas, Horn Antennas, Yagi-Uda & Log-Periodic Antennas, Reflector Antennas.
This chapter covers the antenna basics including: antenna fields, radiation pattern, antenna gain, beamwidth, antenna efficiency, antenna input impedance, antenna bandwidth, antenna polarization, isotropic antenna, radiation intensity, effective radiated power and antenna types.
A study of wave propagation— how radio signals are affected by the earth and space in moving from transmitting antenna to receiving antenna—is critical to understanding how to ensure reliable communication over the desired distance at specific frequencies.
