Bifilar antenna trap

Claim 1

A method for introducing bifilar traps into a wire antenna system having antenna segments with parallel resonant traps included between said antenna segments, whereby the antenna segments and traps may be formed from a continuous length of insulated wire, said method comprising laying a portion of insulated antenna wire that will become the cross-connection of the bifilar trap coils against an elongated insulator longitudinally, bending the wire 90° to begin winding turns of wire around the insulator perpendicular to the longitudinal axis of the insulator and over the longitudinal cross-connection wire to form a first coil on the insulator, attaching the wire that had been wrapped into the first coil to the insulator near the finish of the first coil, taking the longitudinal cross-connection wire from under the finish of the first coil, bending it 90° to begin winding this wire into a second coil of approximately the same number of turns as the first coil, with the direction of winding of the start of the second coil 180° from the direction of the start of the first coil so that the resulting bifilar coils will be inductively in a series-aiding relationship, with the turns of wire in the second coil in close proximity to the turns in the first coil in reverse order, such that the first or starting turn of the first coil is adjacent to the last or finishing turn of the second coil, the second turn is adjacent to the next-to-last turn, and so on, attaching the wire that had been wrapped into the second coil to the insulator near the finish of the second coil, extending wires from their attachments to the insulator to form antenna segments of desired lengths, starting a second trap construction by adding to the included antenna segment approximately half the length of wire that will be used in the second trap and marking this point on the wire to be the cross-connection of the second bifilar trap, laying this cross-connection portion of wire longitudinally against another elongated insulator and wrapping first and second coils on it to form a trap with the desired number of turns and resonant frequency, as was done for the first trap, and continuing the trap inclusion method for as many traps and antenna segment as desired.

Claim 2

A method for introducing bifilar traps into a wire antenna system having antenna segments with parallel resonant traps included between said antenna segments, whereby the antenna segments and traps may be formed from a continuous length of insulated wire, said method comprising laying a portion of insulated antenna wire that will become the cross-connection of the bifilar trap coils against an elongated insulator longitudinally, bending the wire 90° to begin winding turns of wire around the insulator perpendicular to the longitudinal axis of the insulator and over the longitudinal cross-connection wire to form a first coil on the insulator, attaching the wire that had been wrapped into the first coil to the insulator near the finish of the first coil, taking the longitudinal cross-connection wire from under the finish of the first coil, bending it 90° to begin winding this wire into a second coil of approximately the same number of turns as the first coil, with the direction of winding of the start of the second coil 180° from the direction of the start of the first coil so that the resulting bifilar coils will be inductively in a series-aiding relationship, with the turns of wire in the second coil in close proximity to the turns in the first coil in reverse order, such that the first or starting turn of the first coil is adjacent to the last or finishing turn of the second coil, the second turn is adjacent to the next-to-last turn, and so on, attaching the wire that had been wrapped into the second coil to the insulator near the finish of the second coil, extending wires from their attachments to the insulator to form antenna segments of desired lengths, starting a second trap construction by adding to the included antenna segment approximately half the length of wire that will be used in the second trap and marking this point on the wire to be the cross-connection of the second bifilar trap, laying this cross-connection portion of wire longitudinally against another elongated insulator and wrapping first and second coils on it to form a trap with the desired number of turns and resonant frequency, as was done for the first trap, and continuing the trap inclusion method for as many traps and antenna segment as desired.