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John Smith wrote:
In other words, what set of formulas would give you length, conductor spacing, gamma capacitor value, ratio of gamma rod to driven element diameter, and a starting measurement for the shorting bar between conductors-- for a given frequency? EZNEC will give you ballpark answers that require some adjustments to length and capacitance. The free version of EZNEC is available at www.eznec.com. What conditions requiring a match is the gamma best suited for? When your electrical dipole is one piece of metal, i.e. a physical monopole. The center of 1/2WL of one piece of metal has the voltage equal to zero so you cannot feed it there but you can connect ground to there. Then feed it some distance away from center through a parallel element and a series capacitor. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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