# US 9,437,914 B2 · Power processing circuit and multiplex amplification circuit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,437,914 B2 - Document ID: US9437914B2 - Status: Granted - Kind: B2 - Application number: 14/485,418 - Filed: 2014-09-12 - Published: 2015-10-01 - Granted: 2016-09-06 - Earliest claimed: 2014-03-27 - Assignees: Hon Hai Precision Industry Co., Ltd. - Applicants: Hon Hai Precision Industry Co., Ltd. - Inventors: Yu-Chih Chueh - Web page: https://patentgrep.com/patent/US9437914B2 ## CPC - H01P 5/12: Coupling devices having more than two ports (H01P5/04 takes precedence) - H01P 1/203: Strip line filters - H01P 5/16: Conjugate devices, i.e. devices having at least one port decoupled from one other port - H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) ## Abstract A power processing circuit includes a first portion, a second portion, a third portion, a resistor, a first coupling portion, and a second coupling portion. The first portion, the second portion, and the third portion are connected to respective external components. The resistor is used for isolating signals between the second portion and the third portion. The first coupling portion and the second coupling portion are substantially U-shaped coupling structures and are positioned at different sides of the resistor. The first coupling portion is connected to the first portion, the second portion, and ground. The second coupling portion is connected to the first portion, the third portion, and ground. ## Claims ### Claim 1 A power processing circuit, comprising: a first portion; a second portion; a third portion; a resistor, connected between the second portion and the third portion to isolate signals between the second portion and the third portion for decreasing signal interferences between the second portion and the third portion; a first coupling portion, forming an U-shaped coupling structure and connected to the first portion, the second portion, and a ground; and a second coupling portion, forming another U-shaped coupling structure and connected to the first portion, the third portion, and the ground; wherein the second coupling portion and the first coupling portion are symmetrically located about the resistor. ### Claim 2 (depends on 1) The power processing circuit as claimed in claim 1, wherein the first portion connects to an output port of external components to receive the signals from the external components, the second portion and the third portion connect to input ports of the external components respectively to transmit the signals to the external components when the processing circuit is dividing powers of the signals. ### Claim 3 (depends on 1) The power processing circuit as claimed in claim 1, wherein the first portion connects to an input port of external components to transmit the signals to the external components, the second portion and the third portion connect to the output ports of the external components respectively to receive the signals from the external components when the processing circuit is combining powers of the signals. ### Claim 4 (depends on 1) The power processing circuit as claimed in claim 1, wherein the first coupling portion and the second coupling portion both comprise two signal terminals; the two signal terminals of the first coupling portion connect to the first portion and the second portion respectively, and the two signal terminals of the second coupling portion connect to the first portion and the third portion respectively. ### Claim 5 (depends on 1) The power processing circuit as claimed in claim 1, wherein the U-shaped coupling structure of the first coupling portion and the another U-shaped coupling structure of the second coupling portion both comprise a first coupling line, a second coupling line, a first capacitor and a short microstrip line; in which a first end portion of the first coupling line, a first end portion of the second coupling line, and a first end portion of the first capacitor are connected together, a second end portion of the second coupling line connects to a first end portion of a short microstrip line, a second end portion of the first capacitor connects to the ground through a via. ### Claim 6 (depends on 5) The power processing circuit as claimed in claim 5, wherein the first coupling line and the second coupling line both form an L-shaped microstrip line and an L-shaped gap is defined between the first coupling line and the second coupling line to make electromagnetic waves couple together to form a mutual induction effect. ### Claim 7 A multiplex power processing circuit, comprising a plurality of power processing circuits connected together, wherein each power processing circuit of the power processing circuits comprises: a first portion; a second portion; a third portion; a resistor, connected between the second portion and the third portion to isolate signals between the second portion and the third portion for decreasing signal interferences between the second portion and the third portion; a first coupling portion, wherein the first coupling portion is an U-shaped coupling structure and connected to the first portion, the second portion, and a ground; and a second coupling portion, wherein the second coupling portion is an U-shaped coupling structure and connected to the first portion, the third portion, and the ground; wherein the second coupling portion and the first coupling portion are symmetrically located about the resistor. ### Claim 8 (depends on 7) The multiplex power processing circuit as claimed in claim 7, wherein the second portion and the third portion of one power processing circuit of the power processing circuits connect to the first portions of another two power processing circuits of the power processing circuits. ### Claim 9 (depends on 7) The multiplex power processing circuit as claimed in claim 7, wherein the first portion connects to an output port of external components to receive the signals from the external components, the second portion and the third portion connect to input ports of the external components respectively to transmit the signals to the external components when the processing circuit is dividing powers of the signals. ### Claim 10 (depends on 7) The multiplex power processing circuit as claimed in claim 7, wherein the first portion connects to an input port of external components to transmit the signals to the external components, the second portion and the third portion connect to output ports of the external components respectively to receive the signals from the external components when the processing circuit is combining powers of the signals. ### Claim 11 (depends on 7) The multiplex power processing circuit as claimed in claim 7, wherein the first coupling portion and the second coupling portion both comprise two signal terminals; the two signal terminals of the first coupling portion connect to the first portion and the second portion respectively, and the two signal terminals of the second coupling portion connect to the first portion and the third portion respectively. ### Claim 12 (depends on 7) The multiplex power processing circuit as claimed in claim 7, wherein the U-shaped coupling structure of the first coupling portion and the another U-shaped coupling structure of the second coupling portion both comprise a first coupling line, a second coupling line, a first capacitor and a short microstrip line, wherein a first end portion of the first coupling line, a first end portion of the second coupling line, and a first end portion of the first capacitor are connected together, a second end portion of the second coupling line connects to a first end portion of a short microstrip line, a second end portion of the first capacitor connects to the ground through a via. ### Claim 13 (depends on 12) The multiplex power processing circuit as claimed in claim 12, wherein the first coupling line and the second coupling line both form an L-shaped microstrip line and an L-shaped gap is defined between the first coupling line and the second coupling line to make electromagnetic waves couple together to form a mutual induction effect. ### Claim 14 A multiplex amplification circuit, comprising a plurality of multiplex power processing circuits and multiple amplifiers, wherein a plurality of multiplex power processing circuits connect to input and output ports of the multiple amplifiers respectively, each multiplex power processing circuit comprises a plurality of power processing circuits, and each power processing circuit comprises: a first portion; a second portion; a third portion; a resistor, connected between the second portion and the third portion to isolate signals between the second portion and the third portion for decreasing signal interferences between the second portion and the third portion; a first coupling portion, forming an U-shaped coupling structure and connected to the first portion, the second portion, and a ground; and a second coupling portion, forming another U-shaped coupling structure and connected to the first portion, the third portion, and the ground; wherein the second coupling portion and the first coupling portion are symmetrically located about the resistor. ### Claim 15 (depends on 14) The multiplex amplification circuit as claimed in claim 14, wherein the second portion and the third portion of one power processing circuit of the multiple power processing circuits connect to the first portions of another two power processing circuits of the multiple power processing circuits. ### Claim 16 (depends on 14) The multiplex amplification circuit as claimed in claim 14, wherein the first portion connects to an output port of external components to receive the signals from the external components, the second portion and the third portion connect to input ports of the external components respectively to transmit the signals to the external components when the processing circuit is dividing powers of the signals. ### Claim 17 (depends on 14) The multiplex amplification circuit as claimed in claim 14, wherein the first portion connects to an input port of external components to transmit the signals to the external components, the second portion and the third portion connect to output ports of the external components respectively to receive the signals from the external components when the processing circuit is combining powers of the signals. ### Claim 18 (depends on 14) The multiplex amplification circuit as claimed in claim 14, wherein the first coupling portion and the second coupling portion both comprise two signal terminals; and the two signal terminals of the first coupling portion connect to the first portion and the second portion respectively, and the two signal terminals of the second coupling portion connect to the first portion and the third portion respectively. ### Claim 19 (depends on 14) The multiplex amplification circuit as claimed in claim 14, wherein the U-shaped coupling structure of the first coupling portion and the another U-shaped coupling structure of the second coupling portion both comprise a first coupling line, a second coupling line, a first capacitor and a short microstrip line; wherein a first end portion of the first coupling line, a first end portion of the second coupling line, and a first end portion of the first capacitor are connected together, a second end portion of the second coupling line connects to a first end portion of a short microstrip line, a second end portion of the first capacitor connects to the ground through a via. ### Claim 20 (depends on 19) The multiplex amplification circuit as claimed in claim 19, wherein the first coupling line and the second coupling line both form an L-shaped microstrip line and an L-shaped gap is defined between the first coupling line and the second coupling line to make electromagnetic waves couple together to form a mutual induction effect.