US 2020/0052663 A1Published application

Power amplifier module

AssigneeMurata Manufacturing Co., Ltd.

InventorsShigeki KOYA, Yasunari UMEMOTO, Yuichi SAITO, Isao OBU, Takayuki TSUTSUI

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Abstract

A power amplifier module includes a first substrate and a second substrate, at least part of the second substrate being disposed in a region overlapping the first substrate. The second substrate includes a first amplifier circuit and a second amplifier circuit. The first substrate includes a first transformer including a primary winding having a first end and a second end and a secondary winding having a first end and a second end; a second transformer including a primary winding having a first end and a second end and a secondary winding having a first end and a second end; and multiple first conductors disposed in a row between the first transformer and the second transformer, each of the multiple first conductors extending from the wiring layer on a first main surface to the wiring layer on a second main surface of the substrate.

Claims20

Dependent claims

A power amplifier module, comprising:

a first substrate having a first main surface, a second main surface, and a plurality of wiring layers;
and
a second substrate having a first main surface that faces the first main surface of the first substrate, at least part of the second substrate overlapping the first substrate in a direction perpendicular to the first main surface of the first substrate,
wherein the second substrate comprises:
a first amplifier circuit;
and
a second amplifier circuit, each of the first amplifier circuit and the second amplifier circuit being configured to amplify power, and
wherein the first substrate comprises:
a first transformer disposed at one or more of the plurality of wiring layers, the first transformer comprising:
a primary winding having a first end to which a signal is input, and a second end electrically coupled to a first reference potential, and
a secondary winding having a first end electrically coupled to an input terminal of the first amplifier circuit, and a second end electrically coupled to an input terminal of the second amplifier circuit;
a second transformer that is disposed at a position that does not overlap the first transformer in the direction perpendicular to the first main surface of the first substrate, and that is disposed at one or more of the plurality of wiring layers, the second transformer comprising:
a primary winding having a first end electrically coupled to an output terminal of the first amplifier circuit, and a second end electrically coupled to an output terminal of the second amplifier circuit, and
a secondary winding having a first end from which a signal is output, and a second end electrically coupled to a second reference potential;
and
a plurality of first conductors disposed in a row between the first transformer and the second transformer, each of the plurality of first conductors extending from a wiring layer on the first main surface of the first substrate to a wiring layer on the second main surface of the first substrate.

13 more elements

A power amplifier module, comprising:

a first substrate having a first main surface, a second main surface, and a plurality of wiring layers;
and
a second substrate having a first main surface facing the first main surface of the first substrate, at least part of the second substrate overlapping the first substrate in a direction perpendicular to the first main surface of the first substrate,
wherein the second substrate comprises:
a first amplifier circuit;
and
a second amplifier circuit, each of the first amplifier circuit and the second amplifier circuit being configured to amplify power, and
wherein the first substrate comprises:
a first transformer disposed at one or more of the plurality of wiring layers, the first transformer comprising:
a primary winding having a first end to which a signal is input, and a second end electrically coupled to a first reference potential, and
a secondary winding having a first end electrically coupled to an input terminal of the first amplifier circuit, and a second end electrically coupled to an input terminal of the second amplifier circuit;
a second transformer that is disposed at a position that does not overlap the first transformer in the direction perpendicular to the first main surface of the first substrate, and that is disposed at one or more wiring of the plurality of wiring layers, the second transformer comprising:
a primary winding having a first end electrically coupled to an output terminal of the first amplifier circuit, and a second end electrically coupled to an output terminal of the second amplifier circuit, and
a secondary winding having a first end from which a signal is output, and a second end electrically coupled to a second reference potential;
and
a first conductor that is a single component having a substantially wall shape, the first conductor being disposed between the first transformer and the second transformer and extending from a wiring layer on the first main surface of the first substrate to a wiring layer on the second main surface of the first substrate.

13 more elements

Dependencies are inferred from the claim text.