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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)/11%3A_Common_Antennas_and_ApplicationsThis page addresses the difficulties in solving Maxwell's equations for antennas due to their complexities. It emphasizes that standard wire antennas enable precise current distribution estimations, a...This page addresses the difficulties in solving Maxwell's equations for antennas due to their complexities. It emphasizes that standard wire antennas enable precise current distribution estimations, aiding in calculations of radiated fields, gain, and effective area. The text also touches on radio wave propagation and thermal emission, alongside polar plots demonstrating the Yagi-Uda antenna's horizontal cross sections versus an isotropic emitter.
- https://phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Electromagnetics_and_Applications_(Staelin)/11%3A_Common_Antennas_and_Applications/11.02%3A_Wire_antennasThis page focuses on wire antennas, analyzing current distributions and radiated fields while addressing challenges in solving Maxwell's equations for complex designs. It discusses quasistatic approxi...This page focuses on wire antennas, analyzing current distributions and radiated fields while addressing challenges in solving Maxwell's equations for complex designs. It discusses quasistatic approximations, radiation resistance, and open-circuit voltage, emphasizing the half-wave dipole's properties. The text also covers nominal current distributions across various structures, their variation during cycles, and how arm lengths influence terminal currents and radiation resistance.
