[TowerTalk] RF Ground is not a Myth

Bryan Fields Bryan at bryanfields.net
Fri Jan 23 00:51:46 EST 2015


On 1/19/15, 9:29 PM, James Duffey wrote:
> The RF ground is a useful theoretical construct. This theoretical construct
> is a result of solid thinking. 

Believing in something does not make it so.

> Given that it is hard to realize in
> practice, but it does have its use in understanding current flow in RF
> circuits, the practical problems in implementing a useful ground, and why
> we have problems in circuits that we don’t think should have problems.
> Simply put, an RF ground is an infinite source or sink of carriers,
> delivered or received with minimal delay. That of course is not realizable,
> but understanding why the carriers cannot be delivered or absorbed with
> minimal delay helps a great deal in understanding the practical
> implementation of circuits we design.

Literally nothing is correct in that paragraph.

-- 
Bryan Fields

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