Transmission of multiple linear signals on a same frequency

摘要

Disclosed is a method to transmit multiple linear electromagnetic signals on a same frequency. For N data signals Si, where i=1 through N, each data signal is transmitted at 180/N degrees rotation from the next. For each data signal Si, signals inverse to Si are transmitted at +180/N degrees and −180/N degrees from Si, rotated around the transmit axis, at a power level of 0.5/COS (180°/N) times the power of said Si signal. This results in cancellation of said data signal Si along the transmit rotation of Si and a receivable data signal inverted and at a 90 degrees rotation from said transmitted Si. A total of N distinct data signals are transmitted simultaneously on a same frequency, resulting in a dramatic increase in capacity in an electromagnetic system. N is an integer greater than one and could be, for example, 18.

主权项

1. A method comprising:
transmitting a linear polarized data signal, designated by S1; transmitting an inverse data signal of said linear polarized data signal S1, designated by S1−1, at θ degrees axial rotation around a transmit axis of said linear polarized data signal S1; and transmitting another inverse data signal of said linear polarized data signal S1, designated by S1−2, at −θ degrees axial rotation around said transmit axis of said linear polarized data signal S1, wherein θ=180/N degrees, wherein said N is a finite positive integer representing a maximum number of unique data signals transmitted at a same frequency including said linear polarized signal S1, wherein transmit power levels of said inverse data signal S1−1 and said inverse data signal S1−2 are set such that transmit power level of said linear polarized signal S1 is equal to sum of transmit power level of said inverse data signal S1−1 times Cos θ plus transmit power level of said inverse data signal S1−2 times Cos θ.