| 摘要 |
A helical antenna having a radiator portion formed on a flexible substrate and a rigid substrate with a center feed element electrically connected to the radiator portion. The flexible substrate is supported by a support assembly with the radiator portion spaced substantially equidistant from the center feed element. The support assembly includes a first non-conductive member mounted to one surface of the rigid substrate at a first location, a second non-conductive member mounted to a second surface at the first location, a third non-conductive member mounted to the one surface at a second location spaced from the first location, and a fourth non-conductive member mounted to the second surface at the second location. A tool for assembling the helical antenna is provided having a base member with a plurality of elongated members mounted thereon substantially equidistant from each other and extending outwardly therefrom. A plurality of holes formed in the elongated members removably receive pins when in registration with holes in the flexible substrate. A rotatable tuning cap for fine tuning the antenna may be used having a plurality of tuning elements extending axially with the central antenna axis. |
