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An improved multiband trap dipole antenna
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An Improved Multiband Trap Dipole Antenna - Ham-Radio
www.iw5edi.comAn Improved Multiband Trap Dipole Antenna You need this—traps with lower loss, higher Q, increased power-handling capability and four-band coverage!
Build a Space Efficient Dipole Antenna for 40, 80 and 160 ...
www.arrl.orgFig 2—The improved coaxial-cable traps use two layered windings to provide an unusually high inductance-to-capacitance ratio, higher Q, and twice the breakdown voltage of single-