Pierce Nichols wrote: > > At 02:33 PM 2/19/2003 -0500, Henry Spencer wrote: > > >They can't hold the sort of beams required at the sort of distances > >required, unless you use enormous antennas. A wavelength of a centimeter > >instead of a micron makes a huge difference. > > Just how big are we talking? My understanding is that in a > phased-array system, the whole array is effectively a single antenna, and > can be almost arbitrarily large.
Assume it scales proportional to the wavelength. Take the lens or mirror you would use for micron wavelengths. Make it 10^4 times as large for equivalent angular resolution at centimeter wavelengths. -dw _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
