Dipole strength clip
View Patent ↗An antenna comprising PCB elements mechanically secured by a clip is provided. The antenna has a feedboard printed circuit board having a feed network, at least one radiating element, and the clip. The radiating element includes first and second printed circuit boards, each having a base disposed on a surface of the feedboard printed circuit board. In one example, the printed circuit boards each further include a dipole disposed above the feedboard. In another example, the PCBs are supports and a cross-polarized radiating may be mounted on top. The first and second PCBs may include slots so that the boards may be assembled together. The PCBs also include an extension extending through a first slot on the feedboard PCB, and indentations disposed on the first extension. The clip may have retainers that engage the indentations of the extensions.
1. An antenna, comprising:
a) a feedboard printed circuit board having a feed network;
b) at least one radiating element, comprising:
1) a first printed circuit board base disposed on a first surface of the feedboard printed circuit board supporting a first polarized radiator disposed above the first surface, the first base including a first feed line connected to the feed network, a first longitudinal slot along a center axis, a first extension extending through a first slot on the feedboard printed circuit board, and first and second indentations disposed on the first extension;
2) a second printed circuit board base disposed on the first surface of the feedboard printed circuit board supporting a second polarized radiator disposed above the first surface, the second base including a second feed line connected to the feed network, a second longitudinal slot along a center axis, a second extension extending through a second slot on the feedboard printed circuit board, and third and fourth indentations disposed on the second extension, the first and second longitudinal slots being arranged such that the first and second bases bisect each other at approximately right angles; and
c) at least one clip, the clip having first and second retainers engaging the first and second indentations of the first extension, and third and fourth retainers engaging the third and fourth indentations of the second extension; wherein each of the retainers of the clip further comprises:
1) a slot, dimensioned to receive a printed circuit board of the thickness of the first and second extensions; and
2) a nub, dimensioned to engage one of the indentations of the first and second extensions.
2. The antenna of claim 1 , further comprising a plurality of radiating elements and a plurality of clips arranged in an array.
3. The antenna of claim 1 , wherein each retainer further comprises at least one tab arranged such that applying pressure to the tab releases the nub from an indentation.
4. The antenna of claim 1 , wherein each retainer further comprises at least one gusset.
5. The antenna of claim 1 , wherein the radiating element is oriented on the feedboard printed circuit board such that the first polarized radiator produces a +45 degree polarization and the second polarized radiator produces a −45 degree polarization.
6. The antenna of claim 1 , wherein the first and second polarized radiators comprise dipole radiators.
7. The antenna of claim 1 , wherein the first polarized radiator comprises a first dipole radiator formed with the first base, and the second polarized radiator comprises a second dipole radiator formed with the second base.
8. The antenna of claim 1 , wherein the first and second polarized radiators comprise a cross-polarized element supported by the first base and the second base and coupled to the first feed line and the second feed line.