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From: "Don" <g@crcomp.net>
Newsgroups: sci.electronics.design
Subject: Re: transmission line z
Date: Thu, 19 Jun 2025 13:30:55 -0000 (UTC)
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Leo Baumann wrote:
> Leo Baumann:
>> schrieb john larkin:
>>> ir
>>> __________________ copper
>>> .........................................fr4
>>> __________________ copper
>>>
>>> air
>>
>> www.leobaumann.de/newsgroups/Stripline_without_Groundplane.pdf
>>
>
> It is necessary to determine the effective material permittivity of the
> geometry.

OK. It's easy enough for me to mentally model the stripline as a
complexly constructed capacitor.

Open question: Is it possible to view the stripline as unterminated long
wire antenna with a length longer than one or two wavelengths? In this
case the radiation pattern's major lobe constricts to increasingly align
with the antenna axis.

Danke,

-- 
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.