TRUNK BRIDGE AMPLIFIER USING MULTI CHANNEL DIPLEXER

摘要

A trunk bridge amplifier according to the present invention does not require that a structure in which an existing trunk bridge amplifier transmits and receives network signals only via an upstream transmission band and a downstream transmission band be changed, thereby maintaining compatibility with existing trunk bridge amplifiers, and employing a new frequency band for the transmission of network signals through an existing wired broadcasting network. For this, the present invention provides a trunk bridge amplifier, the trunk bridge amplifier having a plurality of diplexers each for performing division into at least two frequency bands, and at least one amplifier for amplifying the resulting frequency bands, including a bidirectional amplifier, the diplexer performs division into an upstream frequency band, a downstream frequency band, and a first frequency band, and includes a high frequency band connection terminal for separately performing division on the first frequency band, and the first frequency band is provided to the bidirectional amplifier, and an input/output (I/O) terminal of the bidi-rectional amplifier is connected to the high frequency band connection terminal of the diplexer and is then driven, so that a structure of a trunk bridge amplifier for the upstream frequency band and the downstream frequency band is not changed.