Radio frequency module and communication device

1. A radio frequency module, comprising:

a module board including a first principal surface and a second principal surface on opposite sides of the module board;

a first transmission power amplifier configured to amplify a radio frequency transmission signal;

a transmission output matching circuit connected to an output terminal of the first transmission power amplifier;

a first reception low-noise amplifier configured to amplify a radio frequency reception signal; and

a reception input matching circuit connected to an input terminal of the first reception low-noise amplifier, wherein

the transmission output matching circuit includes a first inductance element,

the reception input matching circuit includes a second inductance element,

the first inductance element is mounted on the first principal surface of the module board, and

the second inductance element is mounted on the second principal surface of the module board.

2. The radio frequency module according to claim 1 , further comprising:

a common terminal;

a first transmission filter disposed in a transmission path connecting the first transmission power amplifier and the common terminal, and configured to pass a radio frequency transmission signal of a predetermined transmission band out of the radio frequency transmission signal amplified by the first transmission power amplifier; and

a first reception filter disposed in a reception path connecting the first reception low-noise amplifier and the common terminal, and configured to pass a radio frequency reception signal of a predetermined reception band out of a radio frequency reception signal input from the common terminal, wherein

the transmission output matching circuit is disposed in the transmission path between the first transmission power amplifier and the first transmission filter, and is configured to match impedances of the first transmission power amplifier and the first transmission filter, and

the reception input matching circuit is disposed in the reception path between the first reception low-noise amplifier and the first reception filter, and is configured to match impedances of the first reception low-noise amplifier and the first reception filter.

3. The radio frequency module according to claim 2 , wherein

the predetermined transmission band is a transmission band of a first communication band,

the predetermined reception band is a reception band of the first communication band,

the first transmission power amplifier is configured to preferentially amplify a radio frequency transmission signal of the transmission band of the first communication band,

the first reception low-noise amplifier is configured to preferentially amplify a radio frequency reception signal of the reception band of the first communication band, and

the first transmission filter and the first reception filter constitute a duplexer that supports the first communication band.

4. The radio frequency module according to claim 2 , wherein

the predetermined transmission band is a transmission band of a first communication band,

the predetermined reception band is a reception band of a second communication band different from the first communication band,

the first transmission power amplifier is configured to preferentially amplify a radio frequency transmission signal of the transmission band of the first communication band,

the first reception low-noise amplifier is configured to preferentially amplify a radio frequency reception signal of the reception band of the second communication band,

the radio frequency module further comprises:

a second transmission power amplifier configured to preferentially amplify a radio frequency transmission signal of a transmission band of the second communication band;

a second transmission filter configured to pass the radio frequency transmission signal of the transmission band of the second communication band out of a radio frequency transmission signal amplified by the second transmission power amplifier;

a second reception filter configured to pass a radio frequency reception signal of a reception band of the first communication band, and

a second reception low-noise amplifier configured to preferentially amplify the radio frequency reception signal of the reception band of the first communication band.

5. The radio frequency module according to claim 4 , wherein

transmission of a radio frequency transmission signal of the first communication band and reception of a radio frequency reception signal of the second communication band are executed simultaneously.

6. The radio frequency module according to claim 2 , wherein

a frequency of a harmonic component of the radio frequency transmission signal amplified by the first transmission power amplifier or a frequency of intermodulation distortion between the radio frequency transmission signal and another radio frequency signal overlaps at least part of the predetermined reception band.

7. The radio frequency module according to claim 1 , wherein

in a plan view of the module board, the first inductance element and the second inductance element do not overlap.

8. The radio frequency module according to claim 1 , wherein

a magnetic flux generated by the first inductance element and a magnetic flux generated by the second inductance element intersect.

9. The radio frequency module according to claim 1 , wherein

in a plan view of the module board, a conductive member is disposed between the first inductance element and the second inductance element, the conductive member being mounted on the first principal surface or the second principal surface.

10. The radio frequency module according to claim 9 , wherein

in the plan view of the module board, at least part of a region of the conductive member projected in the plan view overlaps a line connecting an arbitrary point in a region of the first inductance element projected in the plan view and an arbitrary point in a region of the second inductance element projected in the plan view.

11. The radio frequency module according to claim 9 , wherein

the conductive member is any one of:

(1) a first switch configured to switch between conduction and non-conduction between a transmission path including the first transmission power amplifier and an antenna common terminal and conduction and non-conduction between a reception path including the first reception low-noise amplifier and the antenna common terminal;

(2) a second switch configured to switch conduction and non-conduction between the transmission path and the first transmission power amplifier;

(3) a third switch configured to switch conduction and non-conduction between the reception path and the first reception low-noise amplifier;

(4) the first transmission filter disposed in the transmission path;

(5) the first reception filter disposed in the reception path;

(6) a multiplexer disposed between (i) the antenna common terminal and (ii) the first transmission filter and the first reception filter;

(7) a metal chip;

(8) a chip condenser;

(9) a control circuit configured to generate at least one of a control signal for adjusting a gain of the first transmission power amplifier and a gain of the first reception low-noise amplifier or a control signal for controlling switching of the first switch, the second switch, and the third switch.

12. The radio frequency module according to claim 9 , wherein

the conductive member includes an electrode that is grounded via the first principal surface or the second principal surface.

13. The radio frequency module according to claim 1 , wherein

in a plan view of the module board, the module board includes a central region and four outer side regions including four outer sides of the first principal surface other than the central region, the central region containing at least one of a first transmission filter a first reception filter, the first transmission filter being disposed in a transmission path including the first transmission power amplifier, the first reception filter being disposed in a reception path including the first reception low-noise amplifier,

in a plan view of the first principal surface, the first inductance element and the second inductance element are each disposed in a different one of two outer side regions out of the four outer side regions, the two outer side regions being located on opposite sides of the central region.

14. The radio frequency module according to claim 1 , wherein

the module board has a multilayer structure in which a plurality of dielectric layers are stacked, and

a ground electrode pattern is formed in at least one of the plurality of dielectric layers.

15. The radio frequency module according to claim 1 , wherein

the first transmission power amplifier is mounted on one of the first principal surface and the second principal surface, and

the first reception low-noise amplifier is mounted on the other of the first principal surface and the second principal surface.

16. A communication device, comprising:

an RF signal processing circuit configured to process a radio frequency signal which is transmitted or received by an antenna element; and

the radio frequency module according to claim 1 configured to transfer the radio frequency signal between the antenna element and the RF signal processing circuit.