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Home network splitter with reduced isolation

A home network, splitter technology, applied in the direction of network connectors, circuits, repeater circuits, etc., can solve problems such as increasing input to output loss, in-band signal loss, high isolation or notch

Active Publication Date: 2022-02-11
PPC BROADBAND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such ferrite core splitters, the extension of bandwidth and / or the addition of intermediate circuits both increase input-to-output losses and may result in higher isolation or notch, which can cause loss of in-band signal

Method used

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  • Home network splitter with reduced isolation
  • Home network splitter with reduced isolation
  • Home network splitter with reduced isolation

Examples

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Embodiment Construction

[0018] Embodiments of the present disclosure may provide a home network resistive splitter with imposed frequency band restrictions (eg, limited to 1125 to 1675 MHz) that allows for use in modified home or MoCA band radio frequency (RF) performance of alternative circuit designs, thus differing from conventional wideband CATV splitters. Resistive splitters are generally not used in CATV applications due to their higher input-to-output insertion loss and lower output isolation than conventional ferrite core splitters. Currently, the telecom industry and CATV operators are transitioning from combined full access and MoCA network architectures to semi-isolated home network architectures, which may benefit from the resistive splitters disclosed herein. As used herein, full access and MoCA networks allow all devices to access an external CATV distribution network or CMTS (e.g., headend), while semi-isolated home network architecture refers to a network that includes a combination o...

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PUM

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Abstract

A splitter for use in a home network includes an input and a plurality of outputs including at least a first output and a second output. A split point is located between the input and the plurality of outputs. A first resistor and a first capacitor are connected in series between the input terminal and the shunt point. A second resistor and a second capacitor are connected in series between the shunt point and the first output terminal. A third resistor and a third capacitor are connected in series between the shunt point and the second output terminal. The input, the first output and the second output form a resistive Wye-type shunt. A first path exists between the input terminal and the first output terminal. A second path exists between the input terminal and the second output terminal. The first path and the second path have substantially equal series resistance, series impedance, insertion loss, and isolation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 618,204, filed January 17, 2018, and U.S. Provisional Patent Application No. 62 / 675,986, filed May 24, 2018. The entire contents of these two US provisional patent applications are hereby incorporated by reference. Background technique [0003] Typical traditional splitters or power splitters used in Cable Television (CATV) networks and Multimedia over Coax Alliance (MoCA) networks primarily use ferrite transformers to provide broadband circuits with low input-to-output loss and high output-to-output isolation. These ferrite core splitter circuits are constructed in a number of different ways including core shapes, sizes, materials, winding schemes, external components, and additional intermediate circuitry to achieve CATV bandwidths (e.g., 5 to 1002MHz) and Acceptable home performance for MoCA bandwidth (eg, 1125 to 1675MHz). However, in s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/38H04N7/173
CPCH04B3/38H04N7/173H04N7/104H01R24/547H01R2201/18H01R13/719H01R2201/04H01R24/542
Inventor 保罗·贝利
Owner PPC BROADBAND INC