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Title: And another Antenna! Post by: WA4WAX on April 02, 2024, 08:17:54 PM https://f6aoj.ao-journal.com/cariboost_files/rotate_20the_20bobtail_20curtain.pdf
Title: Re: And another Antenna! Post by: WA4WAX on April 05, 2024, 07:28:35 AM I am going to add an idea. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Terminate the end of that ladder line segment with a variable capacitor. Voila! You have a hybrid stub. By adjusting the variable, you can continuously walk a short up the line. Walk it up to a place at or near the 90 degree spot (About half way), and you can have a unidirectional end fire pattern. EZNEC or some other program would help you determine the best place for the short. 1/10 inch spacing would probably be plenty for the cap. Have fun. |