Shielded radio frequency component with integrated antenna
Aspects of this disclosure relate to a shielded radio frequency component with an integrated antenna. An antenna can be on a first side of a multi-layer substrate and a radio frequency component can be disposed on a second side of the multi-layer substrate such that a ground plane of the multi-layer substrate is positioned between the antenna and the radio frequency component. Conductive features can be disposed around the radio frequency component and electrically connected to the ground plane. The conductive features and the ground plane can provide shielding for the radio frequency component. In certain embodiments, the conductive features can include bumps, such as solder bumps and/or copper pillars.
1. A radio frequency module comprising:
a multi-layer substrate having a first side and a second side opposite to the first side, the multi-layer substrate including a ground plane;
an antenna on the first side of the multi-layer substrate;
a radio frequency component disposed on the second side of the multi-layer substrate such that the ground plane is positioned between the antenna and the radio frequency component;
bumps disposed around the radio frequency component and electrically connected to the ground plane, the bumps and the ground plane configured to provide shielding for the radio frequency component;
molding material around the radio frequency component; and
a via extending through the molding material, the via being included in an electrical connection between the ground plane and a bump of the bumps.
2. The radio frequency module of claim 1 further comprising another bump configured to provide an electrical connection to the radio frequency component.
3. The radio frequency module of claim 1 wherein the bumps extend farther away from the multi-layer substrate than the radio frequency component extends away from the multi-layer substrate.
4. The radio frequency module of claim 1 wherein the multi-layer substrate includes routing layers and insulating layers.
5. The radio frequency module of claim 1 wherein the bumps include at least one of a copper pillar, a solder ball, or a solder bump.
6. The radio frequency module of claim 1 wherein the antenna is printed on the first side of the multi-layer substrate.
7. The radio frequency module of claim 1 wherein the multi-layer substrate includes a dielectric layer disposed between the ground plane and the antenna.
8. The radio frequency module of claim 1 wherein the multi-layer substrate includes a passive component.
9. The radio frequency module of claim 8 wherein the passive component is included in a matching network associated with the radio frequency component.
10. The radio frequency module of claim 1 wherein the radio frequency component includes at least one of a low-noise amplifier or a power amplifier.
11. The radio frequency module of claim 1 wherein the antenna is configured to transmit at least one of a Wireless Personal Area Network signal or a Wireless Local Area Network signal.
12. A radio frequency circuit assembly comprising:
a laminate substrate having a first side and a second side opposite to the first side, the laminate substrate including a ground plane;
a printed antenna on the first side of the laminate substrate;
a radio frequency component attached on the second side of the laminate substrate such that the ground plane is positioned between the printed antenna and the radio frequency component;
bumps disposed around the radio frequency component, the bumps being electrically connected to the ground plane such that the bumps and the ground plane form at least a portion of a shielding structure around the radio frequency component;
molding material around the radio frequency component; and
a via extending through the molding material, the via being included in an electrical connection between the ground plane and a bump of the bumps.
13. The radio frequency circuit assembly of claim 12 further comprising another bump disposed within the shielding structure and configured to provide an electrical connection to the radio frequency component.
14. The radio frequency circuit assembly of claim 12 wherein the laminate substrate includes routing layers and insulating layers.
15. The radio frequency circuit assembly of claim 12 wherein the bumps include at least one of copper pillars or solder bumps.
16. A system board assembly comprising:
a laminate substrate having a first side and a second side opposite to the first side, the laminate substrate including a ground plane;
a printed antenna on the first side of the laminate substrate;
a radio frequency component attached on the second side of the laminate substrate such that the ground plane is positioned between the printed antenna and the radio frequency component;
bumps disposed around the radio frequency component and being electrically connected to the ground plane;
a system board including ground pads electrically connected to the ground plane by way of the bumps such that a shielding structure is formed around the radio frequency component; and
an electronic component on the system board, the shielding structure arranged so as to provide radio frequency isolation between the radio frequency component and the electronic component.
17. The system board assembly of claim 16 further comprising a molding material around the radio frequency component and a via extending through the molding material, the via being included in an electrical connection between the ground plane and a bump of the bumps.
18. The system board assembly of claim 16 wherein the bumps provide standoff between the radio frequency component and the system board.
19. The system board assembly of claim 16 wherein the radio frequency component is embodied on a semiconductor-on-insulator die.
20. The system board assembly of claim 16 wherein the printed antenna and the radio frequency component are embodied in an antenna in a package module.