Antenna-integrated radio frequency module
An antenna-integrated radio frequency (RF) module includes a multilayer substrate disposed between an integrated chip (IC) and patch antennas, signal vias, and ground members. The IC is configured to generate RF signals. The signal vias are configured to connect and transmit/receive the RF signals from each of the patch antennas to the IC. The ground members are disposed on an outer surface layer and intermediate surface layers of the multilayer substrate to surround each of the patch antennas and the signal vias.
1. An antenna-integrated radio frequency (RF) module, comprising:
a multilayer substrate;
an integrated chip (IC) disposed on an outer surface of the multilayer substrate, and configured to generate a transmission signal and a reception signal;
patch antennas disposed on a first layer of the multilayer substrate;
first transmission vias electrically connected to the patch antennas, respectively;
first reception vias electrically connected to the patch antennas, respectively;
transmission lines electrically connected to the first transmission vias, respectively;
reception lines electrically connected to the first reception vias, respectively, and separated from the transmission lines;
second transmission vias electrically connected between the IC and the transmission lines, respectively;
second reception vias electrically connected between the IC and the reception lines, respectively;
a first ground member disposed between the patch antennas and the transmission lines or the reception lines, and having first penetration regions surrounding the first transmission vias and the first reception vias, respectively.
2. The antenna-integrated RF module of claim 1 , further comprising a first ground via group electrically connected to the first ground member, and surrounding the transmission lines and reception lines, respectively.
3. The antenna-integrated RF module of claim 2 , further comprising a second ground member having second penetration regions surrounding the transmission lines and the reception lines, respectively, and electrically connected to the first ground via group.
4. The antenna-integrated RF module of claim 3 , further comprising:
a third ground member having third penetration regions surrounding the second transmission vias and the second reception vias, respectively; and
a second ground via group electrically connected between the second ground member and the third ground member, and surrounding the transmission lines and reception lines, respectively.
5. The antenna-integrated RF module of claim 1 , further comprising a third ground member having third penetration regions surrounding the second transmission vias and the second reception vias, respectively.
6. The antenna-integrated RF module of claim 5 , further comprising a second ground member having second penetration regions surrounding the transmission lines and the reception lines, respectively.
7. The antenna-integrated RF module of claim 1 , further comprising a sub-substrate disposed on the outer surface of the multilayer substrate to surround the IC,
wherein the sub-substrate comprises solder balls electrically connecting between the IC and the sub-substrate.
8. The antenna-integrated RF module of claim 7 , further comprising a passive element disposed between the sub-substrate and the IC,
wherein the outer surface of the multilayer substrate has a first trench disposed to surround the IC, and a second trench disposed to surround the first trench and surrounded by the sub-substrate.
9. The antenna-integrated RF module of claim 7 , wherein the IC converts signals received through the solder balls into the transmission signal of a millimeter wave (mmWave) band.