The impedance characteristics of a coaxial TEM-line antenna.
Abstract
The coaxial TEM-line antenna is a low-profile, lightweight,
simply constructed antenna that can be easily
mounted on a wide variety of conducting surfaces. It is
a low to medium gain antenna element capable of operation
in broadside or frequency scanning modes.
This paper presents a method of determining the impedance
characteristics of a single flush mounted radiating
gap.
Several radiation patterns are presented to illustrate
beam shape and scanning. The Brillouin or w-B diagram is
used to relate the frequency scanning properties to periodic
structure theory.