The chapter treats particular antenna problems, namely, transparent antennas,
ship antennas, rectangular loop, and ground resistance. A rigorous method to calculate a
transparent antenna based on solving the integral equation for the current permits to
develop the antenna design. An analysis of electrical characteristics of a rectangular
loop shows how its pattern differs from that of a circular loop. An application of the
theorem on the oscillating power enables to simplify and define more precisely the
magnitudes of the monopole ground resistance. Section dedicated to ship antennas deals
with specific difficulties in their designing and service, the influence of superstructures
and other metal bodies on their electrical characteristics, and the creation of the main
ship antenna with inductance-capacitance load.
Keywords: Antenna located flush with metal construction, Azimuth dependence
on the near field, Electrical characteristics, Energy conservation law, Flat metal
triangle, Ground resistance, Inductance-capacitance load, Integral equation for the
current in a flat transparent antenna, Invisible antenna, Leontovich impedance
boundary condition, Linear self-capacitance of a film, Low efficiency, Main ship
antenna, Oscillating power, Propagation constant, Rectangular loop, Sheet
resistivity, Ship antennas, Stray capacitance between the antenna and the mast,
Thick superstructures, Transparent film, Upper and lower feeding, Weak
dependence of input impedance on radiator length.