Phasing Multitone Signals to Minimize Peak Factors

To maximize the average power of a multitone bandpass signal under a peak power constraint, the tones must be phased so as to minimize the RF peak factor. Results are given here for = 3, 5, 7, and 9 where the tones are of equal power and uniformly spaced in frequency. The two methods of phasing studied lead to similar minimized peak factors of roughly 6 dB. Optimum parameter values, improvements over worst case peak factors, and sensitivities to phasing errors are given, and extensions to other values of are discussed.