Composite module and electronic apparatus including the same

Patent metadata

Field	Value
Publication number	US-9614271-B2
Application number	US-201314010790-A
Country	US
Kind code	B2
Filing date	Aug 27, 2013
Priority date	Sep 28, 2012
Publication date	Apr 4, 2017
Grant date	Apr 4, 2017

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Murata Manufacturing Co

Inventors

• Nakano Morihiro
• Ito Yuichi
• Hirai Taro
• Kuwahara Hidetaka

Classifications

• H01Q1/243

  with built-in antennas · CPC title

• H01Q1/24 Primary

  with receiving set · CPC title

• H01Q1/52 Primary

  Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure (absorbing means H01Q17/00) · CPC title