[TowerTalk] amplifiers for phased arrays

[Rick Karlquist]

Jim Lux said:

> that some ham, who IS an amplifier designer, would take that on.  There's
> a
> lot of new amplifier design approaches out there that are efficient, have
> better performance, etc., but the ham market (being relatively tiny) seems
> to be willing to buy the same old triode, bipolar, and fet designs that
> have
> been around for decades.

Besides the DSP predistortion you mentioned, what are these "new amplifier
design approaches?"  Do they work with an arbitrary load impedance?  What
kind of efficiency are you thinking of?

BTW, DSP predistortion is not, strictly, an amplifier design technique.
It has to be applied to the whole transmitter.  It won't help with
an amplifier module intended to amplify the output of an arbitrary
exciter.


Rick N6RK
(who IS an amplifier designer)