Thisdocument provides lecture notes on antennas and wave propagation. It begins with a brief history of antennas from Heinrich Hertz's experiments in the late 1800s to modern applications. It then covers key topics in the first unit, including different types of antennas like dipoles, monopoles, loops, horns and arrays. The document discusses the basic principles of electromagnetic radiation from antennas and conditions required for radiation. It also introduces important antenna parameters and the different types of dimensions and units used to measure antennas.Read less
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