| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a helical element capable of obtaining double resonance. <P>SOLUTION: An inner helical element 42b is formed by turning the end of an outer helical element 42a back and reversely winding the end of the element inside the outer helical element 42a. The power is fed to a helical antenna part 40 formed in this way from an antenna holder 41 with which the bottom end of the outer helical element 42a is brought into contact. Since the inner helical element 42b is wound around inside the outer helical element 42a, double resonance is made. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
