Frequency scaling at millimetre wave frequencies

It is contended that the process that has been used at lower frequencies, which involves the frequency scaling of attenuation itself, is incorrect. The correct solution is believed to involve the scaling of amplitudes, not attenuation. In this way, the amplitudes can be used, with the approximate drop-size distribution, to obtain the attenuation. Initial results, which are limited to considering the case of horizontal polarization over a terrestrial propagation path, are presented. The possibility that in this case a simple scaling rule for amplitudes might hold is derived from a study of three frequencies, 57.3, 94, and 137 GHz.