RE: NEC-LIST: Zero-Q antenna

Ed
I am ready to believe what you say but it would be helpful if you could
summarise the main points of the Collin paper saying why you think the
Grimes papers are faulty.
Thanks
Alan

-----Original Message-----
From: Altshuler Edward E Civ AFRL/SNHA
[mailto:Edward.Altshuler_at_hanscom.af.mil]
Sent: 21 January 2003 13:27
To: 'alan.boswell_at_baesystems.com'; ccc_at_space.mit.edu; nec-list_at_gweep.ca
Subject: RE: NEC-LIST: Zero-Q antenna

Dear Colleagues,

Unfortunately the Grimes & Grimes papers are filed with misconceptions and
errors that lead them to invalid results. For those who are interested I
refer you to an excellent paper by Prof. Robert E. Collin on "Minimum Q of
Small Antennas," Journal of Electromagnetic Waves and Applications, Vol. 12,
1369-1393, 1998.

Ed Altshuler

-----Original Message-----
From: alan.boswell_at_baesystems.com [mailto:alan.boswell_at_baesystems.com]
Sent: Monday, January 20, 2003 4:51 AM
To: ccc_at_space.mit.edu; nec-list_at_gweep.ca
Subject: RE: NEC-LIST: Zero-Q antenna

Chuck
Quote: An ensemble of four dipoles, two electric and two magnetic ones, one
of each type lying along each of the x- and y-axes. More details are said
to be in the 2000 paper in MOT Letters. They say there is strong intermodal
coupling between the x-directed electric moment and the y-directed magnetic
moment, and vice versa (I think that's questionable).
Alan
 

-----Original Message-----
From: Chuck Counselman [mailto:ccc_at_space.mit.edu]
Sent: 17 January 2003 18:05
To: alan.boswell_at_baesystems.com
Subject: Re: NEC-LIST: Zero-Q antenna

At 2:01 PM +0000 1/17/03, alan.boswell_at_baesystems.com wrote:
>Has anyone seen / modelled / experimented with the "zero-Q antenna"
>proposed by Grimes et al in Microwave and Optical Technology
>Letters, vol. 28 no. 3, Feb. 5, 2001, also in vol. 27 pp. 53-58
>(2000)?

I haven't; sorry; but I wish, and I bet others do, too, that you
would post a summary of what it is and how it works, to the list.

Tnx -chuck.

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