Perpendicularly oriented, electrically small TM dipoles: control of input impedance through relative phase offset

We report on experimental investigations into the design and operation of a multielement antenna as guided by time domain mathematics. The purpose was to confirm, using as simple a design as possible, the reality of the time domain description of power. By measuring total reflected power, we are able to monitor changes in the input reactance of the antenna as a function of relative phase between the dipoles. In agreement with theory, the input reactance of a multielement antenna can be controlled through adjustment of relative phase differences between the elements.