ABSTRACT
Consider a monopole element of length h and radius b, which is located in free space at the center of an infinitely thin, circular ground plane of radius a and infinite conductivity (see Fig. 1). The ground-plane radius, when expressed in radians, is given by
(2.1.1)
where k=2π/λ=wavenumber (m−1) λ=excitation wavelength (m)
The monopole element and ground plane have current distributions in real time given by
(2.1.2)
where ω=radian frequency of the excitation=2πc/λ (rad/sec) c=wave velocity in free space=2.9979×108 m/sec I(z), I(ρ)=element and ground-plane current amplitude distributions, respectively, (A). The subscripts z and ρ are suppressed in our notation.
