Antenna Theory

✴In radio and electronics, an antenna (plural antennae or antennas), or aerial, is an electrical device which converts electric power into radio waves, and vice versa.✴ ►An Antenna can be used either as a transmitting antenna or a receiving antenna.✦ ►A transmitting antenna is one, which converts electrical signals into electromagnetic waves and radiates them.✦ ►A receiving antenna is one, which converts electromagnetic waves from the received beam into electrical signals.✦ ►In two-way communication, the same antenna can be used for both transmission and reception.✦ ►Antenna can also be termed as an Aerial. Plural of it is, antennae or antennas. Nowadays, antennas have undergone many changes, in accordance with their size and shape. There are many types of antennas depending upon their wide variety of applications.✦ 【Topics Covered in this App are Listed Below】 ⇢ Fundamentals ⇢ Basic Parameters ⇢ Parameters ⇢ Near and Far Fields ⇢ Radiation Pattern ⇢ Isotropic Radiation ⇢ Beam and Polarization ⇢ Beam Width ⇢ Reciprocity ⇢ Poynting Vector ⇢ Types of Antennas ⇢ Wire ⇢ Half-Wave Dipole ⇢ Half-Wave Folded Dipole ⇢ Full-Wave Dipole ⇢ Short Dipole ⇢ Long-Wire ⇢ V-Antennas ⇢ Inverted V-Antenna ⇢ Rhombic ⇢ Loop ⇢ Helical ⇢ Aperture ⇢ Horn ⇢ Slot ⇢ Micro Strip ⇢ Lens ⇢ Parabolic Reflector ⇢ Antenna Arrays ⇢ Collinear Array ⇢ Broad-side Array ⇢ End-fire Array ⇢ Parasitic Array ⇢ Yagi-Uda Antenna ⇢ Log-periodic Antenna ⇢ Log-periodic Antenna ⇢ Spectrum & Transmission ⇢ Types of Propagation ⇢ Lonosphere and its Layers ⇢ Terms in Wave Propagation ⇢ Radiation Mechanism ⇢ Two-Wires ⇢ Dipole ⇢ Current Distribution On A Thin Wire Antenna ⇢ Historical Advancement ⇢ Methods of Analysis ⇢ Radiation Pattern ⇢ Isotropic, Directional, and Omnidirectional Patterns ⇢ Radian and Steradian ⇢ Radiation Power Density ⇢ Beamwidth ⇢ Directional Patterns ⇢ Omnidirectional Patterns ⇢ Antenna Efficiency ⇢ Polarization ⇢ Antenna Vector Effective Length And Equivalent Areas ⇢ Antenna Equivalent Areas ⇢ Maximum Directivity And Maximum Effective Area ⇢ FRIIS Transmission Equation And Radar Range Equation ⇢ Antenna Temperature ⇢ Multimedia ⇢ Radiation Integrals and Auxiliary Potential Functions ⇢ Solution Of The Inhomogeneous Vector Potential Wave Equation ⇢ Reciprocity for Two Antennas ⇢ Linear Wire Antennas ⇢ Power Density and Radiation Resistance ⇢ Small Dipole ⇢ Biconical Antenna ⇢ Triangular Sheet, Bow-Tie, And Wire Simulation ⇢ Matching Techniques ⇢ Baluns and Transformers ⇢ Traveling Wave Antennas ⇢ Frequency Independent Antennas, Antenna Miniaturization, and Fractal Antennas ⇢ Log-Periodic Antennas ⇢ Fundamental Limits Of Electrically Small Antennas ⇢ Reflector Antennas ⇢ Parabolic Reflector ⇢ Smart Antennas ⇢ Smart Antennas’ Benefits