NEC-LIST: Maximum Power Transfer

Hello Dan,

I was interested to read (your e-mail d. 29 June 1998) that you are a
communicator, and, in communications, you are interested in *maximum
power transfer*.

I wonder if you read Communications Quarterly? If you do please see
the Fall 1997 issue [1]; Winter 1998 [2] and Spring 1998 [3, 4] issues
--- and I will have a forthcoming letter on the subject in the Summer
1998 issue, which more or less says this depends on your point of
view. But in my point of view (my physics background) tuned RF power
amplifiers are conjugately matched.

I have been having a continuing debate with an ex-transmitter design
engineer during the past 8-years on the subject. He is of the opinion
that tuned RF power amplifiers are not conjugately matched. I say
they are (repeating myself).

I would be pleased to receive your comment.

Regards, Jack

References

1) J.S. Belrose, W. Maxwell and C.T. Rauch, "Source Impedance of HF
Tuned Power Amplifiers and the Conjugate Match", CommQuart, Fall 1997,
pp. 25-40.

2) W.E. Sabin, Letter on the subject of conjugate match, Technical
Conversations, CommQuart, Winter 1998, pp. 8-9 and 102-104.

3) W.B. Bruene, "The Elusive Conjugate Match", CommQuart, Spring 1998,
pp. 23-31.

4) J.S. Belrose, "The Saga Continues", CommQuart, Spring 1998,
pp. 100-102.

_____________________________________________
John S. (Jack) Belrose, PhD Cantab, VE2CV
Senior Radioscientist
Radio Sciences Branch
Communications Research Centre
PO Box 11490 Stn. H
OTTAWA ON K2H 8S2
CANADA
TEL 613-998-2308
FAX 613-998-4077
e-mail <john.belrose_at_crc.ca>
_____________________________________________
Received on Fri Jul 10 1998 - 09:37:40 EDT