Composite module and electronic apparatus including the same
A wireless communication module includes a circuit board, and an antenna and a connection member mounted on a mounting surface of the circuit board. The antenna is mounted in a region along a first end edge of the circuit board, and the connection member is mounted in a region along a second end edge of the circuit board.
1. A composite module comprising:
a circuit board;
an antenna and a connection member mounted on a mounting surface of the circuit board;
an electronic component mounted on the circuit board; and
a metal case mounted on the circuit board so as to cover the electronic component; wherein
the antenna is mounted in a region along a first end edge of the circuit board;
the connection member is mounted in a region along a second end edge of the circuit board;
the metal case and the electronic component are positioned between the antenna and the connection member;
the first end edge and the second end edge are opposed to each other when the circuit board is seen in a planar view; wherein
the connection member includes at least a fixing member;
the metal case is mounted in a region on the second end edge side of the circuit board;
the metal case includes a top plate and a side plate arranged at a predetermined position;
the fixing member is arranged near a portion where the side plate is not arranged; and
the fixing member is arranged such that the fixing member is covered with the metal case.
2. The composite module according to claim 1 , wherein a heat dissipation member is arranged between the metal case and the electronic component.
3. The composite module according to claim 1 , wherein the electronic component is one of a wireless communication IC, a balun filter, and a band-pass filter.
4. The composite module according to claim 1 , wherein the circuit board includes a through hole to enable insertion of the fixing member.
5. The composite module according to claim 1 , wherein the electronic component is mounted adjacent to the fixing member.
6. The composite module according to claim 1 , wherein the antenna is a chip antenna including a dielectric material or a pattern antenna including a wiring pattern on the circuit board.
7. The composite module according to claim 1 , wherein
the side plate includes a plurality of side plates arranged at the predetermined position;
in side portions of the metal case, gaps are located at portions where no side plates are provided; and
the fixing member is arranged to block at least one of the gaps.
8. The composite module according to claim 1 , wherein
the side plate includes a plurality of side plates arranged at the predetermined position; and
the metal case is L-shaped or substantially L-shaped.
9. An electronic apparatus comprising:
a mother board; and
the composite module according to claim 1 , on the mother board.
10. The electronic apparatus according to claim 9 , wherein the metal case or the mounting surface is mounted so as to face a principal surface side of the mother board.
11. The electronic apparatus according to claim 10 , wherein a heat dissipation member is arranged between the top plate of the metal case and a principal surface of the mother board.
12. An electronic apparatus comprising:
a mother board; and
the composite module according to claim 1 , the composite module being mounted on the mother board via the fixing member.
13. The electronic apparatus according to claim 12 , wherein the metal case or the mounting surface is mounted so as to face a principal surface side of the mother board.
14. The electronic apparatus according to claim 13 , wherein a heat dissipation member is arranged between the top plate of the metal case and a principal surface of the mother board.
15. The electronic apparatus according to claim 1 , wherein the fixing member is electrically connected to ground.