Devices and methods for mitigating external passive intermodulation sources in base station antennas
The present disclosure describes an antenna mount kit. The antenna mount kit includes an antenna mount and a pipe clamp coupled to the antenna mount. The pipe clamp includes a front shell half and a rear shell half, the front shell half and the rear shall half having a front shell half inner surface and a rear shell half inner surface configured to cooperate with each other such that the mounting structure can be secured within the pipe clamp, at least two threaded bolts, a plurality of washers, and a plurality of nuts. The antenna mount kit may further include at least two isolation fasteners. The front shell half inner surface and the rear shell half inner surface each include a plurality of jagged teeth formed of a non-metallic material, at least two front shell bolt apertures through the front shell half, and at least two rear shell half bolt apertures through the rear shell half. The front shell half bolt apertures align with the rear shell half bolt apertures when securing the mounting structure within the pipe clamp. Antenna mount assemblies and methods for reducing external passive intermodulation from an antenna mount kit are also provided.
1. An antenna mount kit, comprising:
an antenna mount; and
a pipe clamp coupled to the antenna mount, the pipe clamp comprising:
a front shell half and a rear shell half, the front shell half and the rear shall half having a front shell half inner surface and a rear shell half inner surface configured to cooperate with each other such that the mounting structure can be secured within the pipe clamp, wherein the front shell half inner surface and the rear shell half inner surface each comprise a plurality of jagged teeth formed of a non-metallic material;
at least two front shell bolt apertures through the front shell half and at least two rear shell bolt apertures through the rear shell half, wherein the front shell half bolt apertures align with the rear shell half bolt apertures when securing the mounting structure within the pipe clamp;
at least two isolation fasteners, each isolation fastener having an annular portion and a retention portion, wherein at least a portion of the annular portion of the isolation fasteners is configured to be received by and extend into a respective front and/or rear shell half bolt aperture;
at least two threaded bolts;
a plurality of washers; and
a plurality of nuts.
2. The antenna mount kit of claim 1 , wherein the annular portion of each isolation fastener is configured to be received by a respective rear shell half bolt aperture and each of the at least two threaded bolts extend through the annular portion of a respective isolation fastener.
3. The antenna mount kit of claim 1 , wherein the retention portion comprises a securing member configured to engage the isolation fastener to the pipe clamp.
4. The antenna mount kit of claim 3 , wherein the securing member comprises one or more protrusions configured to engage a slot in the rear shell half of the pipe clamp.
5. The antenna mount kit of claim 3 , wherein the securing member comprises a hook configured to engage an outer edge of the rear shell half of the pipe clamp.
6. The antenna mount kit of claim 1 , wherein the at least two isolation fasteners are formed of a polymeric material.
7. An antenna mount kit, comprising:
an antenna mount; and
a pipe clamp coupled to the antenna mount, the pipe clamp comprising:
a front shell half and a rear shell half, the front shell half and the rear shall half having a front shell half inner surface and a rear shell half inner surface configured to cooperate with each other such that the mounting structure can be secured within the pipe clamp, wherein the front shell half inner surface and the rear shell half inner surface each comprise a plurality of jagged teeth;
at least two front shell bolt apertures through the front shell half and at least two rear shell bolt apertures through the rear shell half, wherein the front shell half bolt apertures align with the rear shell half bolt apertures when securing the mounting structure within the pipe clamp;
at least two isolation fasteners, each isolation fastener having an annular portion and a retention portion, wherein at least a portion of the annular portion of the isolation fasteners is configured to be received by and extend into a respective front and/or rear shell half bolt aperture;
at least two threaded bolts;
a plurality of washers; and
a plurality of nuts.
8. The antenna mount kit of claim 7 , wherein the retention portion comprises a securing member configured to engage the isolation fastener to the pipe clamp.
9. The antenna mount kit of claim 8 , wherein the securing member comprises one or more protrusions configured to engage a slot in the rear shell half of the pipe clamp.
10. The antenna mount kit of claim 8 , wherein the securing member comprises a hook configured to engage an outer edge of the rear shell half of the pipe clamp.
11. The antenna mount kit of claim 7 , wherein the at least two isolation fasteners are formed of a polymeric material.