As illustrated, control signal 307 is a pseudo random digital signal via which the transition of the code from a “1” to a “0” and vice versa, is used to alter the polarization of the signal sent by antenna elements 304a and 304b. Specifically, pseudo random code 307 serves as a control signal for phase shifters 308a and 308b, respectively. In the example of FIG. 3, control signal 307 is defined as a digital function p(n). This signal is used to induce a 90° phase shift into either of signals 302a or 302b, which results in either left or right hand polarization, depending on which signal receives the phase shift. According to the specific example of FIG. 3, phase shifter 308a and 308b receive conjugate versions of the control signal. Accordingly, when phase shifter 308a receives a “1” from the control signal, a phase shift is introduced into signal 302a, and at the same time, phase shifter 308b receives a “0” and no phase shift is introduced into signal 302b. Alternatively, phase shifters 308a and 308b may be embodied as multipliers, with multiplier 308a multiplying signal 302a by a signal mathematically described as:
