Patent ID: 8253646

Claim:
An antenna comprising: a first printed wiring board having a plurality of rectilinear printed wiring patterns arranged in parallel at a specified interval, and through holes formed on both ends of each of the rectilinear printed wiring patterns; a second printed wiring board having a plurality of rectilinear printed wiring patterns arranged in parallel at a specified interval, and through holes formed on both ends of each of the rectilinear printed wiring patterns; and a plurality of linking conductors configured so that both ends of the conductors are linked to the through holes that are formed in the first and second printed wiring boards so that the first printed wiring board and the second printed wiring board are disposed opposite each other, and further configured so that the plurality of rectilinear printed wiring patterns formed on the first printed wiring board and the plurality of rectilinear printed wiring patterns formed on the second printed wiring board are conductively connected to each other in a helix; wherein the rectilinear printed wiring patterns are disposed at a front surface of the first and second printed wiring boards, a wiring pattern comprising a feeder part is disposed at a rear surface, and the wiring pattern comprising the feeder part on the rear surface is conductively connected to a specified position of the rectilinear printed wiring pattern on the front surface by a through-hole conductor.