Re: The Real Story on iPhone 4's Antenna

[David Farber <dave () farber net>]

I have had no issues withe radio part of the IPhone 4. Works like a charm in Pittsburgh. I have had flaky behavior of 
the Mail.app. It receives mail but will not display it till I open another mailbox and THEN go back to the INBOX. It 
may be the "multi-tasking" of the IOS 4.0 Who knows.



Begin forwarded message:

From: "David P. Reed" <dpreed () reed com>
Date: July 1, 2010 6:32:36 PM EDT
To: dave () farber net
Cc: ip <ip () v2 listbox com>
Subject: Re: [IP] The Real Story on iPhone 4's Antenna

Interesting.  However I would point out that merely insulating the metal band with a non-conductive layer doesn't do 
much at microwave frequencies - capacitative coupling with the fingers has nearly zero impedance, and so the grip of 
fingers would close a GigaHertz circuit even with a thin layer of perfect insulator.

I assume an antenna expert designed the antenna, rather than an ID person, so perhaps they just didn't do much testing.




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