Impedance matched waterproof connector for CATV filter housing
AssigneeJohn Mezzalingua Associates, Inc.
InventorsShawn Chawgo, Noah Montena
Life of this patent
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Abstract
An RF filter which includes a circuit board connected to an internal frame has two end connectors connected to the frame, with a protective casing connected to the internal frame and the end connectors. Insulators in each end connector are shaped to form air pockets between the air pockets and the outer conductor portion of the end connectors. A plurality of O-rings are disposed in various locations on the insulators to prevent moisture from entering the filter. The RF filter passes the SCTE Red Dye Test and limits return loss to better than negative 20 dB.
Claims8
An RF filter, comprising:
- a circuit board connected to an internal frame;
- first and second end connectors connected to the frame;
- a protective casing connected to the internal frame and the first and second end connectors;
- the first end connector including a first outer conductor and containing a first inner conductor and a first insulator, wherein the first insulator creates a first air pocket between the first insulator and the first outer conductor;
- and
- the second end connector including a second outer conductor and containing a second inner conductor and a second insulator, wherein the second insulator creates a second air pocket between a portion of the second insulator and the second outer conductor.
A method for assembling an RF filter, comprising the steps of:
- providing an internal frame;
- providing a circuit board;
- providing two end connectors;
- providing a protective casing;
- when the internal frame and at least one of the end connectors are one-piece, assembling another of the end connectors and the protective casing onto the internal frame, such that mechanical and electrical connectivity is formed between the end connectors, the protective casing, and the internal frame;
- and when the internal frame and both end connectors are one-piece, assembling only the protective casing onto the internal frame such that mechanical and electrical connectivity is formed between the end connectors, the protective casing, and the internal frame;
- wherein the first end connector includes a first outer conductor and contains a first inner conductor and a first insulator, wherein the first insulator creates a first air pocket between the first insulator and the first outer conductor;
- and
- the second end connector includes a second outer conductor and contains a second inner conductor and a second insulator, wherein the second insulator creates a second air pocket between a portion of the second insulator and the second outer conductor.
Dependencies are inferred from the claim text.