Roger (K8RI) wrote:
> Radio WC6W wrote:
>> Hi Dave,
>> The answer is yes.
>>
>> The Antenna Engineering Handbook, 1st edition by Jasik; later
>> editions by others, McGraw Hill, various dates, show these relations
>> quite well graphically but, omit the precise formulae.
>> This topic is covered extensively in Chapter Five of "Antennas" by
>> Kraus, McGraw Hill, 1950. A book well worth having in this hobby.
>>
>> The formula (10-62) you seek is in Chapter 10 on page 262 but, it is
>> way too complicated to type.
> After I quit laughing (I dug my copy out and checked page 262) I'd have
> to add the math on the previous two pages before getting to the general
> case, would scare off the average ham and I mean no disrespect to any
> one. I have a math minor and I'd have to do more than a little review.
> The actual formula on page 262 isn't all that bad, but I'm trying to
> recall Beta. (I haven't had to use any of this stuff in over 20 years)
> IIRC Beta is 2Pi/Wavelength?
>
>
> 73
>
> Roger (K8RI)
>
As you say, it is not trivual. Beta is 2*pi/lambda. I've just put a
graph of one of the formulas at
http://www.g8wrb.org/schelkunoff-full.jpg
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