[Amps] Thoughts on half-wave dipole

[Dr. David Kirkby]

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