Distribution amplifier for a communication device
AssigneeAdtran, Inc.
InventorDaniel M. Joffe
Life of this patent
Estimating the term…
Abstract
A distribution amplifier for a communication device such as a gateway is provided. The distribution amplifier can receive an input signal and provide multiple output signals. The distribution amplifier can have a transmission line that receives the input signal and multiple amplifier stages that are connected to the transmission line to receive the input signal. The output of the amplifier stages correspond to the output signals from the distribution amplifier. The transmission line has equally spaced connection points for the amplifier stages. The transmission line can be designed to have an impedance that results in the impedance of the transmission line with the connected amplifier stages having a final impedance that matches the input impedance to the transmission line.
Claims14
A communication device comprising:
- an antenna;
- a plurality of radios;
- and
- a distribution amplifier having an input connection to receive an input signal from the antenna and a plurality of output connections to provide a plurality of output signals to the plurality of radios, the distribution amplifier comprising:
- a transmission line connected to the input connection to receive the input signal from the antenna, the transmission line having an input impedance at the input connection corresponding to an impedance of the antenna;
- a terminating impedance connected to the transmission line opposite the input connection, wherein the terminating impedance matches the input impedance;
- and
- a plurality of amplifier stages connected to the transmission line to receive the input signal, each amplifier stage of the plurality of amplifier stages connected to the transmission line, and each amplifier stage connected to a corresponding output connection of the plurality of output connections,
- wherein the transmission line and the plurality of amplifier stages connected to the transmission line have an impedance that matches the input impedance and the terminating impedance.
A method of arranging a distribution amplifier for a communication device, the method comprising:
- connecting an antenna to an input connection of a transmission line of the distribution amplifier, the transmission line having an input impedance at the input connection corresponding to an impedance of the antenna connected to the transmission line;
- connecting a terminating impedance to the transmission line opposite the input connection, wherein the terminating impedance matches the input impedance;
- connecting a plurality of amplifier stages to the transmission line, wherein an output of each amplifier stage of the plurality of amplifier stages corresponds to an output of the distribution amplifier;
- and
- configuring the transmission line and the plurality of amplifier stages to have an impedance that matches the input impedance and the terminating impedance.
Dependencies are inferred from the claim text.