Transmission line and transmission method

A transmission line, comprising:

• a multi-mode waveguide;
• and
• a metal wire configured to transmit a signal, wherein the metal wire includes:
• a plurality of input metal wires configured to receive a plurality of input signals;
• and
• a plurality of output metal wires, each configured to output respective input signal of the plurality of input signals,
• wherein the multi-mode waveguide is configured to:
• directly receive the plurality of input signals from the plurality of input metal wires;
• and
• directly transmit the plurality of input signals to the plurality of output metal wires,
• wherein a first direction of signal propagation in the multi-mode waveguide is parallel to a second direction of signal propagation in the metal wire.

A transmission method, comprising:

• inputting a multiplexed input signal from an input metal wire directly to a multi-mode waveguide, wherein the multiplexed input signal is obtained by multiplexing a plurality of signals of a plurality of frequency bands;
• and
• outputting each of the plurality of signals of the plurality of frequency bands from the multi-mode waveguide directly to a respective output metal wire of a plurality of output metal wires,
• wherein a first direction of signal propagation in the multi-mode waveguide is parallel to a second direction of signal propagation in the input metal wire.

A transmission line, comprising:

• a multi-mode waveguide;
• and
• a metal wire configured to transmit a signal, wherein the metal wire includes:
• a plurality of input metal wires to each of which a plurality of input signals of a plurality of frequency bands are inputted, and
• one output metal wire configured to output a multiplexed output signal which includes the plurality of input signals of the plurality of frequency bands,
• wherein the multi-mode waveguide is configured to:
• receive the plurality of input signals from the plurality of input metal wires directly;
• and
• transmit the multiplexed output signal to the one output metal wire directly.

A transmission method, comprising:

• multiplexing a plurality of input signals of a plurality of frequency bands to obtain a multiplexed input signal;
• inputting the multiplexed input signal from a metal wire to a multi-mode waveguide via a first matching structure to match impedance between the metal wire and the multi-mode waveguide;
• and
• outputting, a plurality of impedance matched signals that correspond to respective ones of the plurality of input signals of the plurality of frequency bands, from the multi-mode waveguide to a plurality of output metal wires via a plurality of second matching structures,
• wherein a first direction of signal propagation in the multi-mode waveguide is parallel to a second direction of signal propagation in the metal wire.

A transmission line, comprising:

• a multi-mode waveguide;
• and
• a metal wire configured to transmit a signal, wherein the metal wire includes:
• one input metal wire to which a multiplexed input signal is inputted, wherein the multiplexed input signal includes a plurality of signals of a plurality of frequency bands;
• and
• a plurality of output metal wires, wherein each of the plurality of output metal wires are configured to output a respective signal of the plurality of signals of the plurality of frequency bands,
• wherein the multi-mode waveguide and the metal wire are connected directly to each other.