Patent ID: 11916275
Assignee: NORTHCOMM TECHNOLOGIES GROUP, LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A radio frequency (“RF”) assembly configured for fitting over an opening defined in a cavity resonator of a duplexer, the RF assembly comprising:
an RF plate;
first and second RF connectors secured to the RF plate and configured for receiving first and second co-axial cables carrying RF signals;
an RF junction bar connecting the first and second RF connectors;
a trimmer capacitor positioned in the RF plate;
a coupling loop coupling the RF junction bar to the trimmer capacitor positioned in the RF plate;
a hole defined in the RF plate;
a pass-band tuning pipe extending through the hole and secured to the RF plate, the pipe having a first end and a second end;
a shaft-locking collar attached to the first end of the pipe, the collar defining an interior portion and at least one threaded hole for receiving at least one set screw having at least one end extending into the interior portion of the collar;
a tuning plunger having a rod attached to one end of the tuning plunger, the plunger extending slidingly through the tuning pipe and collar, wherein the tip of the at least one set screw is fabricated from a material softer than the rod, the at least one set screw being configured for tightening on the rod to secure the rod and tuning plunger in place; and
one or more fasteners for securing the RF plate over the opening of the cavity resonator.