US 2018/0007425 A1 · LOW NOISE NETWORK INTERFACE DEVICE

Abstract

The present disclosure provides a network interface device, including an active downstream radio-frequency (RF) signal path connecting an entry port and an active port. The network interface device also includes a passive downstream RF signal path connecting the entry port and a passive port. The network interface device further includes an active upstream RF signal path connecting the entry port and the active port. Additionally, network interface device includes a passive upstream RF signal path connecting the entry port and the passive port. Moreover, the network interface device includes a downstream directional coupler having an input port, a through port, and a coupled port. The passive downstream RF signal path comprises the input port of the downstream directional coupler and the coupled port of the downstream directional coupler.

Claims20

Dependent claims

A network interface device, comprising:

an entry port;
a passive input/output port;
an active input/output port;
a downstream directional coupler;
an upstream directional coupler;
a downstream amplifier;
and
an upstream amplifier,
wherein:
an input port of the downstream directional coupler is configured to receive a downstream radio-frequency (RF) signal from the entry port;
a through port of the downstream directional coupler is configured to provide a majority portion of a downstream RF signal to the active input/output port via the downstream amplifier;
a coupled port of the downstream directional coupler is configured to provide a minority portion of the downstream RF signal to passive input/output port;
a through port of the upstream directional coupler is configured to provide a first upstream RF signal from the passive input/output port to the entry port;
a coupled port of the upstream directional coupler is configured to provide a second upstream RF signal from the active input/output port to the entry port via the upstream amplifier.

11 more elements

Dependencies are inferred from the claim text.

Low noise network interface device

Life of this patent

Low noise network interface device

Life of this patent

Abstract

Claims20