Look up CAGE antenna. It is an old design that reduces the Q of the antenna and therefore makes the antenna work over a larger frequency range.
From: BVARC [mailto:bvarc-boun...@bvarc.org] On Behalf Of Rick Hiller via BVARC Sent: Thursday, January 16, 2020 8:57 AM To: BRAZOS VALLEY AMATEUR RADIO CLUB Cc: Rick Hiller Subject: [BVARC] Antenna Theory Technical Question I am in the midst of analyzing a Ham market HF antenna. Still building the EZNEC model, but working it thru the gray matter. Case: Take a 1/2 wl dipole antenna -- center fed. Each side is made up of multiple, equal length wires that are each insulated, parallel, and closely spaced. The wires are connected/common at the center feed point, but open at the far end. If, at this length, each wire's material DC resistance is 5 ohms....does using multiple wires in parallel, as described above, 1) lower the total RF material resistance, as resistors in parallel....or 2) does it stay the same or 3) does it become additive? Any comments would be appreciated. I've got my hypothesis, but wishing additional input. Thanks and 73 ...Rick W5RH -- Rick Hiller e-mail: rickhille...@gmail.com <mailto:rickhille...@gmail.com> Cell: 832-474-3713 Physical: 9031 Troulon Drive Houston, TX 77036
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