Matching network circuit, and associated apparatus with shared matching network circuit

A matching network circuit, comprising:

• a matching unit, coupled between a common path port and a first path port of the matching network circuit, arranged for performing impedance matching between the common path port and the first path port, wherein the common path port is utilized for connecting the matching network circuit to a common path, and the first path port is utilized for connecting the matching network circuit to a first device on a first path;
• and
• an impedance unit, coupled between the common path port and a second path port of the matching network circuit, arranged for performing impedance matching between the common path port and the second path port with aid of the matching unit, wherein the second path port is utilized for connecting the matching network circuit to a second device on a second path, and signals on the first and the second paths have a same transmission direction with respect to a node between the common path and the first and the second paths;
• wherein the matching network circuit outputs an output signal and is coupled to an output terminal of the first device and an output terminal of the second device;
• and the matching network circuit filters a first intermediate signal on the first path and a second intermediate signal on the second path to generate the output signal, wherein the output terminal of the first device outputs the first intermediate signal from the first device, and the output terminal of the second device outputs the second intermediate signal from the second device.

An apparatus, comprising:

• a first device on a first path;
• a second device on a second path;
• and
• a matching network circuit, coupled between the first device and the second device, the matching network circuit comprising:
• a matching unit, coupled between a common path port and a first path port of the matching network circuit, arranged for performing impedance matching between the common path port and the first path port, wherein the common path port is utilized for connecting the matching network circuit to a common path, and the first path port is utilized for connecting the matching network circuit to the first device on the first path;
• and
• an impedance unit, coupled between the common path port and a second path port of the matching network circuit, arranged for performing impedance matching between the common path port and the second path port with aid of the matching unit, wherein the second path port is utilized for connecting the matching network circuit to the second device on the second path, and signals on the first and the second paths have a same transmission direction with respect to a node between the common path and the first and the second paths;
• wherein the first device and the second device share the matching network circuit;
• the matching network circuit receives an input signal and is coupled to an input terminal of the first device and an input terminal of the second device;
• and the matching network circuit filters the input signal to generate a first intermediate signal on the first path and to generate a second intermediate signal on the second path, wherein the input terminal of the first device inputs the first intermediate signal into the first device, and the input terminal of the second device inputs the second intermediate signal into the second device.

An apparatus, comprising:

• a first device on a first path;
• a second device on a second path;
• and
• a matching network circuit, coupled between the first device and the second device, the matching network circuit comprising:
• a matching unit, coupled between a common path port and a first path port of the matching network circuit, arranged for performing impedance matching between the common path port and the first path port, wherein the common path port is utilized for connecting the matching network circuit to a common path, and the first path port is utilized for connecting the matching network circuit to the first device on the first path;
• and
• an impedance unit, coupled between the common path port and a second path port of the matching network circuit, arranged for performing impedance matching between the common path port and the second path port with aid of the matching unit, wherein the second path port is utilized for connecting the matching network circuit to the second device on the second path, and signals on the first and the second paths have a same transmission direction with respect to a node between the common path and the first and the second paths;
• wherein the first device and the second device share the matching network circuit;
• the matching network circuit outputs an output signal and is coupled to an output terminal of the first device and an output terminal of the second device;
• and the matching network circuit filters a first intermediate signal on the first path and a second intermediate signal on the second path to generate the output signal, wherein the output terminal of the first device outputs the first intermediate signal from the first device, and the output terminal of the second device outputs the second intermediate signal from the second device.