Butler matrix

A butler matrix comprising:

• at least one input coupler that is positioned at an input end of the butler matrix, receives an input signal, and divides and outputs it to a plurality of paths;
• at least one output coupler that receives a signal from the input coupler and divides the signal into a plurality of paths to output it as an output signal;
• a separation coupler that is formed in an intersecting path including a intersecting section at which transmission paths intersect among a plurality of paths through which a signal is transmitted between the input coupler and the output coupler, and separates signals transmitted through different transmission paths;
• and
• a compensation coupler that is formed in a path excluding the intersecting path among the plurality of paths and compensates a phase difference between a signal transmitted through the intersecting path and a signal transmitted through the path excluding the intersecting path,
• Wherein the separation coupler includes a first coupler having a plurality of input terminals and a plurality of output terminals and a second coupler having a plurality of output terminals and a plurality of input terminals that are respectively connected with the output terminals of the first coupler.

A butler matrix comprising:

• a plurality of input couplers that are positioned at an input end of the butler matrix, receive an input signal, and divide and output it to a plurality of paths;
• a plurality of output couplers that receive a signal from the input coupler and divide the signal into a plurality of paths to output it as an output signal;
• a plurality of transmission couplers that are respectively formed between the plurality of input couplers and the plurality of output couplers to transmit a signal output from the input coupler to the output coupler;
• a plurality of separation couplers that are respectively formed in intersecting paths including an intersecting section at which transmission paths intersect among a plurality of paths through which a signal is transmitted between the input coupler and the output coupler, and separate signals transmitted through different transmission paths;
• and
• a plurality of compensation couplers that compensate phase delays with signals transmitted on the path in which the compensation coupler is formed,
• wherein the separation coupler includes a first coupler having a plurality of input terminals and a plurality of output terminals and a second coupler having a plurality of output terminals and a plurality of input terminals that are respectively connected with the output terminals of the first coupler.

A butler matrix comprising:

• at least one input coupler that is positioned at an input end of the butler matrix, receives an input signal, and divides and outputs it to a plurality of paths;
• at least one output coupler that receives a signal from the input coupler and divides the signal into a plurality of paths to output it as an output signal;
• a separation coupler that is formed in an intersecting path including a intersecting section at which transmission paths intersect among a plurality of paths through which a signal is transmitted between the input coupler and the output coupler, and separates signals transmitted through different transmission paths;
• and
• a compensation coupler that is formed in a path excluding the intersecting path among the plurality of paths and compensates a phase difference between a signal transmitted through the intersecting path and a signal transmitted through the path excluding the intersecting path,
• wherein the compensation coupler includes a first coupler having a plurality of input terminals and a plurality of output terminals and a second coupler having a plurality of output terminals and a plurality of input terminals that are respectively connected with the output terminals of the first coupler, and
• one among the plurality of input terminals of the first coupler is a termination terminal through which a signal is not input, and one among the plurality of output terminals of the second coupler is a termination terminal through which a signal is not output.

A butler matrix comprising:

• a plurality of input couplers that are positioned at an input end of the butler matrix, receive an input signal, and divide and output it to a plurality of paths;
• a plurality of output couplers that receive a signal from the input coupler and divide the signal into a plurality of paths to output it as an output signal;
• a plurality of transmission couplers that are respectively formed between the plurality of input couplers and the plurality of output couplers to transmit a signal output from the input coupler to the output coupler;
• a plurality of separation couplers that are respectively formed in intersecting paths including an intersecting section at which transmission paths intersect among a plurality of paths through which a signal is transmitted between the input coupler and the output coupler, and separate signals transmitted through different transmission paths;
• and
• a plurality of compensation couplers that compensate phase delays with signals transmitted on the path in which the compensation coupler is formed,
• wherein the compensation coupler includes a first coupler having a plurality of input terminals and a plurality of output terminals and a second coupler having a plurality of output terminals and a plurality of input terminals that are respectively connected with the output terminals of the first coupler, and
• one among the plurality of input terminals of the first coupler is a termination terminal through which a signal is not input, and one among the plurality of output terminals of the second coupler is a termination terminal through which a signal is not output.