"Richard Harrison" wrote in message
...
As azimuths between phones and bases are constantly changing,
concentrating phone energy at a articular azimuth does not make sense if
the phone is moving.

There's a lot of research going on for 'smart' antennas that effectively are
just electronically phased arrays that continuously re-tune themselves to
'lock on' to a base station. Neat idea, with the usual benefits of
potentially less power for a given range, better range for a given power,
etc., but I don't know whether or not any commercial phones employ the idea
yet.

Joel Kolestad wrote:
"There`s a lot of research going on for "smart" antennas that
effectively are just electronically enhanced arrays that continuously
retune themselves to "lock on" a base atation."

I became aware of that sort of adaptation by reading a notice from the
IEEE Houston Section of an appearance that Cecil`s old professor at
Arizona, Balinas (sp?) was going to make here to clue the locals in on
the latest developments in adaptive antennas. Unfortunately, I didn`t
go. I`ll have to learn elsewhere.

Best regards, Richard Harrison, KB5WZI

I wrote that Dr. Balanis presented recent developments in adaptive
antennas to the Houston Section of the IEEE. I apologize for misspelling
his name. I found the correct spelling in the index of the 3rd edition
of Kraus` "Antennas".

Best regards, Richard Harrison, KB5WZI