NFC antenna module

Patent metadata

Field	Value
Publication number	US-11088436-B2
Application number	US-201615541299-A
Country	US
Kind code	B2
Filing date	Jan 5, 2016
Priority date	Jan 5, 2015
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

Provided is an NFC antenna module which connects a side cover (i.e. metal frame), which is formed at one side of a portable terminal, to the antenna pattern so that the side cover is operated as an auxiliary radiator of an antenna pattern. The presented NFC antenna module comprises: a side cover made of a metal material and coupled to one side of the portable terminal; an antenna pattern having one end connected to a short-range communication chipset embedded in the portable terminal; a first terminal portion of the antenna pattern, the first terminal portion having one end connected to the short-range communication chipset and the other end connected to the side cover; and a second terminal portion having one end connected to the other end of the antenna pattern and the other end connected to the side cover.

First claim

The invention claimed is:

1. An NFC antenna module comprising:
a side cover consisted of metal material and coupled to a portable terminal;
an antenna pattern wound from an outer periphery of a upper surface of a circuit board to a center direction of the upper surface of the circuit board to form in a loop shape wound plural times on the upper surface of the circuit board in the portable terminal, and connected to a near field communication (NFC) chipset that is built in the portable terminal;
a first terminal portion configured to connect the NFC chipset to the side cover; and
a second terminal portion configured to connect the antenna pattern to the side cover
wherein the side cover is coupled to an upper side surface of the portable terminal, and has one end portion connected to the first terminal portion and the other end portion connected to the second terminal portion,
wherein one end of the antenna pattern is connected to the NFC chipset,
wherein the side cover includes a first side cover, the first side cover being coupled to a part of both side surfaces and an upper side surface of the portable terminal,
wherein the first side cover has one end portion contacted to the first terminal portion connected to the NFC chipset, and has the other end portion of the first side cover contacted to the second terminal portion connected to the other end of the antenna pattern.

2. The NFC antenna module of claim 1 , wherein the first terminal portion and the second terminal portion are connected to the side cover by soldering.

3. The NFC antenna module of claim 1 , wherein the first terminal portion and the second terminal portion are provided with contacts, and are connected to the side cover through the contacts.

4. The NFC antenna module of claim 1 , wherein the second terminal portion is spaced apart from the first terminal portion to be connected to the side cover.

5. The NFC antenna module of claim 1 , further comprising a back cover formed of metal material and coupled to a back surface of the portable terminal to form an overlapping region with the antenna pattern.

6. The NFC antenna module of claim 5 , wherein the back cover comprises:
a metal material region that overlaps a part of the antenna pattern to operate as an auxiliary radiator; and
a non-metal material region that overlaps one other part of the antenna pattern.

7. The NFC antenna module of claim 5 , wherein the back cover comprises:
a first metal material region that overlaps a part of one side of the antenna pattern to operate as an auxiliary radiator;
a second metal material region that is spaced apart from the first metal material region to form a spaced region, and overlaps a part of the other side of the antenna pattern to operate as an auxiliary radiator; and
a non-metal material region formed on the spaced region to overlap a part of the antenna pattern.

Assignees

• Amotech Co Ltd

Inventors

• Noh Jin-Won
• Baek Hyung-Il
• Kim Beom-Jin
• Hwang Yong-Ho

Classifications

• G06K19/077

  Constructional details, e.g. mounting of circuits in the carrier · CPC title

• G06K19/07

  with integrated circuit chips · CPC title

• G06K19/07775

  the antenna being on-chip · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/2225

  used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal · CPC title