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- https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/10%3A_Antennas_and_RadiationThis page covers different aspects of antennas, including radiation principles, short dipole antennas, antenna gain, effective area, and antenna arrays. It emphasizes the benefits of larger gains for ...This page covers different aspects of antennas, including radiation principles, short dipole antennas, antenna gain, effective area, and antenna arrays. It emphasizes the benefits of larger gains for fixed services such as point-to-point and satellite communications and discusses how antenna arrays improve performance by enabling rapid beam steering and simultaneous multi-directional transmission across various applications.
- https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/06%3A_Actuators_and_sensors_motors_and_generators/6.03%3A_Rotary_magnetic_motorsThis page covers the operational principles of commutated rotary magnetic motors and reluctance motors, emphasizing torque generation, back-voltage, and design parameters for efficiency. Key points in...This page covers the operational principles of commutated rotary magnetic motors and reluctance motors, emphasizing torque generation, back-voltage, and design parameters for efficiency. Key points include the continuous rotary motion ensured by commutation, the relationship between maximum speed and back-voltage, the role of magnetic fields in torque production, and the importance of rotor/stator gap widths.
- https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/10%3A_Antennas_and_Radiation/10.01%3A_Radiation_from_charges_and_currentsThis page provides an overview of antenna interaction with electromagnetic waves and electric fields from static charges. It covers characteristics of antennas, computation of static electric potentia...This page provides an overview of antenna interaction with electromagnetic waves and electric fields from static charges. It covers characteristics of antennas, computation of static electric potential from charge distributions, and magnetic fields from static currents. The text delves into the derivation of Helmholtz equations from electromagnetic theory, discussing vector fields, their divergence, and the relation of potentials to source distributions.