WO2008082088A1 - A multi-layered internal antenna - Google Patents

A multi-layered internal antenna Download PDF

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Publication number
WO2008082088A1
WO2008082088A1 PCT/KR2007/006194 KR2007006194W WO2008082088A1 WO 2008082088 A1 WO2008082088 A1 WO 2008082088A1 KR 2007006194 W KR2007006194 W KR 2007006194W WO 2008082088 A1 WO2008082088 A1 WO 2008082088A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
carrier
internal antenna
upper carrier
antenna
Prior art date
Application number
PCT/KR2007/006194
Other languages
French (fr)
Inventor
Byung Hoon Ryou
Won Mo Sung
Yong Uk Park
Original Assignee
E.M.W. Antenna Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E.M.W. Antenna Co., Ltd. filed Critical E.M.W. Antenna Co., Ltd.
Publication of WO2008082088A1 publication Critical patent/WO2008082088A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to an internal antenna, and more particularly, to an internal antenna, which is disposed within a mobile communication device to transmit and receive wireless signals, can be assembled easily, enables the frequency band to be set freely, and can obtain a desired frequency band through a coupling effect.
  • a portable mobile communication device such as a mobile phone is equipped with an antenna for transmission and reception of wireless signals.
  • the type of the antenna is classified into an external antenna and an internal antenna depending on its installation location.
  • the internal antenna refers to an antenna of a type which is disposed within the main body of a device.
  • a carrier i.e., a dielectric body
  • an antenna pattern i.e., a conductor
  • the antenna pattern is connected to the circuit board of the communication device through a terminal and functions to transmit and receive wireless signals.
  • the antenna pattern of a single layer is formed on the top surface, etc. of the carrier, which significantly limit the pattern and area. Accordingly, there are caused many problems in the design and fabrication processes of the pattern depending on the setting of the frequency band such as a high frequency or a low frequency.
  • the conventional internal antenna entails a problem in that it is difficult to increase the area of the antenna pattern without increasing the size of the carrier because the antenna pattern is formed on the top surface. This makes it difficult to miniaturize portable mobile communication devices.
  • an object of the present invention has been made to overcome the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an internal antenna in which a radiator for obtaining a desired frequency can be formed easily by forming a multi-layered radiator through a multi- layered carrier.
  • an internal antenna including an upper carrier, an upper radiator supportably disposed on a front surface of the upper carrier, a lower radiator disposed on a rear surface of the upper carrier and having terminals for feed, and a lower carrier configured to support the lower radiator and coupled to the upper carrier on the rear surface of the upper carrier.
  • the upper carrier and the lower carrier may have hooks and connecting holes formed therein for coupling.
  • at least part of the upper radiator may extend up to the rear surface of the upper carrier, so that the upper radiator is electrically connected to the lower radiator.
  • the upper radiator and the lower radiator may be made of a metal sheet.
  • a wireless communication device including the internal antenna.
  • the present invention can form a three-dimensional antenna pattern and increase the area of the antenna pattern by constructing the carrier using the upper and lower carriers of a stack structure, which include the upper and lower radiators. Accordingly, there is a very useful effect in that the antenna pattern of a wider frequency band can be designed and formed freely.
  • the present invention can realize the broad-band and multiband of the frequency employing a coupling effect and can reduce the size of the carrier through the antenna pattern of the stack structure. Accordingly, there is a very useful effect in that an antenna and a portable wireless communication device can be miniaturized.
  • FIG. 1 is a dismantled perspective view of an internal antenna of the present invention
  • FIG. 2 is a perspective view of the internal antenna of the present invention.
  • FIG. 3 is a sectional view showing the structure of the internal antenna in accordance with the present invention. Best Mode for Carrying Out the Invention [17]
  • carriers for an internal antenna in accordance with the present invention will be described in detail in connection with an embodiment with reference to the attached drawings. However, the embodiment is only illustrative and the present invention is not limited to the embodiment.
  • FIG. 1 is a dismantled perspective view of an internal antenna of the present invention.
  • An internal antenna 100 of the present invention largely includes, as shown in the drawing, an upper carrier 200 and a lower carrier 300.
  • the upper carrier 200 is molded using non-conducting material, such as synthetic resin, and has one or more hooks 210 formed at its bottom and an upper radiator 220 (i.e., an antenna pattern) disposed on its front surface.
  • a connecting portion 230 extending to a rear surface of the upper carrier 200, is formed at one end of the upper radiator 220 as shown in FIG. 3.
  • the upper radiator 220 may also be formed on a front surface of the upper carrier 200 through plating. However, after a thin metal sheet is molded into an antenna pattern, the antenna pattern may be coupled to the front surface of the upper radiator 220.
  • the lower carrier 300 is adapted to be coupled to the upper carrier 200 and the rear surface of the upper carrier 200.
  • the lower carrier 300 has one or more connecting holes 310 formed in its front surface so that the holes are coupled to the hooks 210 of the upper carrier 200.
  • the lower carrier 300 has a lower radiator 320 disposed on its front surface. Terminals 330 are formed at the end of the lower radiator 320 for the purpose of feed and ground with a device circuit board. Meanwhile, at least part of the lower radiator 320 is formed to extend up to a location corresponding to the connecting portion 230 of the upper radiator 220.
  • the lower radiator 320 may also be formed on a front surface of the lower carrier 300 through plating like the upper radiator 220. However, after a thin metal sheet is molded using an antenna pattern, the antenna pattern may be coupled to the front surface of the lower radiator 320.
  • the upper radiator 220 and the lower radiator 320 can operate as one radiator.
  • the upper radiator 220 does not extend to the rear surface of the upper carrier 200, but a part of the lower radiator 320 may extend to the upper carrier 200 in order to connect the upper and lower radiators 220, 320.
  • the upper radiator 220 is not connected to the lower radiator 320, but they may be coupled together electromagnetically.
  • the internal antenna 100 of the present invention has, as shown in FIGS. 1 and 2, a two-layered structure in which the upper carrier 200 and the lower carrier 300 are assembled together.
  • the upper radiator 220 and the lower radiator 320 can be formed on the top surfaces of the upper carrier 200 and the lower carrier 300, respectively.
  • the frequency band such as a high frequency or a low frequency can be set easily.
  • the internal antenna 100 of the present invention can reduce the area of each of antenna patterns of the upper carrier 200 and the lower carrier 300 while widening an overall antenna area in terms of the two-layered structure radiator. Consequently, the size of the antenna 100 can be reduced to thereby miniaturize an antenna and a portable wireless communication device.
  • the internal antenna 100 of the present invention can have its frequency set freely when compared with the prior art in terms of the antenna pattern of the two- layered structure, secure a dual band through the coupling effect between the upper and lower radiators and realize the broad-band and multiband of a frequency.
  • the internal antenna 100 of the present invention has a structure in which the upper carrier 200 and the lower carrier 300 are separately fabricated and then assembled together through the hooks 210 and the connecting holes 310. This makes very convenient the assembly of the internal antenna 100 and production thereof through molding. Thus, an internal antenna having a multi-layered structure radiator can be fabricated easily.

Abstract

There is herein disclosed an internal antenna disposed within a mobile communication device and functioning to transmit and receive wireless signals. To this end, the present invention provides an internal antenna, including an upper carrier, an upper radiator supportably disposed on a front surface of the upper carrier, a lower radiator disposed on a rear surface of the upper carrier and having terminals for feed, and a lower carrier configured to support the lower radiator and coupled to the upper carrier on the rear surface of the upper carrier. The upper carrier and the lower carrier have hooks and connecting holes formed therein for coupling. At least part of the upper radiator extends up to the rear surface of the upper carrier, so that the upper radiator is electrically connected to the lower radiator. The upper radiator and the lower radiator are made of a metal sheet.

Description

Description
A MULTI-LAYERED INTERNAL ANTENNA Technical Field
[1] The present invention relates to an internal antenna, and more particularly, to an internal antenna, which is disposed within a mobile communication device to transmit and receive wireless signals, can be assembled easily, enables the frequency band to be set freely, and can obtain a desired frequency band through a coupling effect. Background Art
[2] In general, a portable mobile communication device such as a mobile phone is equipped with an antenna for transmission and reception of wireless signals. The type of the antenna is classified into an external antenna and an internal antenna depending on its installation location.
[3] The internal antenna refers to an antenna of a type which is disposed within the main body of a device. In general, a carrier (i.e., a dielectric body) is disposed on one side of the device circuit board and an antenna pattern (i.e., a conductor), which is also called a radiator, is formed in the carrier. The antenna pattern is connected to the circuit board of the communication device through a terminal and functions to transmit and receive wireless signals.
[4] However, in most conventional internal antennas, the antenna pattern of a single layer is formed on the top surface, etc. of the carrier, which significantly limit the pattern and area. Accordingly, there are caused many problems in the design and fabrication processes of the pattern depending on the setting of the frequency band such as a high frequency or a low frequency.
[5] Further, the conventional internal antenna entails a problem in that it is difficult to increase the area of the antenna pattern without increasing the size of the carrier because the antenna pattern is formed on the top surface. This makes it difficult to miniaturize portable mobile communication devices.
[6] Therefore, conventionally, the setting of the frequency is inevitably very restricted due to the limitation of the antenna pattern. Thus, a problem arises because it is almost impossible to realize broad-band, dual band, and so on of the frequency.
Disclosure of Invention
Technical Problem
[7] Accordingly, an object of the present invention has been made to overcome the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an internal antenna in which a radiator for obtaining a desired frequency can be formed easily by forming a multi-layered radiator through a multi- layered carrier.
[8] It is another object of the present invention to provide an internal antenna, which can realize the broad-band and multiband of the frequency employing a coupling effect through the radiator formed in the multi-layered carrier and can miniaturize internal antennas and portable mobile communication devices through the miniaturization of the carrier. Technical Solution
[9] To accomplish the above objects, according to an aspect of the present invention, there is provided an internal antenna, including an upper carrier, an upper radiator supportably disposed on a front surface of the upper carrier, a lower radiator disposed on a rear surface of the upper carrier and having terminals for feed, and a lower carrier configured to support the lower radiator and coupled to the upper carrier on the rear surface of the upper carrier.
[10] The upper carrier and the lower carrier may have hooks and connecting holes formed therein for coupling. Preferably, at least part of the upper radiator may extend up to the rear surface of the upper carrier, so that the upper radiator is electrically connected to the lower radiator. The upper radiator and the lower radiator may be made of a metal sheet.
[11] According to another aspect of the present invention, there is provided a wireless communication device including the internal antenna.
Advantageous Effects
[12] As described above, the present invention can form a three-dimensional antenna pattern and increase the area of the antenna pattern by constructing the carrier using the upper and lower carriers of a stack structure, which include the upper and lower radiators. Accordingly, there is a very useful effect in that the antenna pattern of a wider frequency band can be designed and formed freely.
[13] Further, the present invention can realize the broad-band and multiband of the frequency employing a coupling effect and can reduce the size of the carrier through the antenna pattern of the stack structure. Accordingly, there is a very useful effect in that an antenna and a portable wireless communication device can be miniaturized. Brief Description of the Drawings
[14] FIG. 1 is a dismantled perspective view of an internal antenna of the present invention;
[15] FIG. 2 is a perspective view of the internal antenna of the present invention; and
[16] FIG. 3 is a sectional view showing the structure of the internal antenna in accordance with the present invention. Best Mode for Carrying Out the Invention [17] Hereinafter, carriers for an internal antenna in accordance with the present invention will be described in detail in connection with an embodiment with reference to the attached drawings. However, the embodiment is only illustrative and the present invention is not limited to the embodiment.
[18] FIG. 1 is a dismantled perspective view of an internal antenna of the present invention. An internal antenna 100 of the present invention largely includes, as shown in the drawing, an upper carrier 200 and a lower carrier 300.
[19] The upper carrier 200 is molded using non-conducting material, such as synthetic resin, and has one or more hooks 210 formed at its bottom and an upper radiator 220 (i.e., an antenna pattern) disposed on its front surface. A connecting portion 230, extending to a rear surface of the upper carrier 200, is formed at one end of the upper radiator 220 as shown in FIG. 3. The upper radiator 220 may also be formed on a front surface of the upper carrier 200 through plating. However, after a thin metal sheet is molded into an antenna pattern, the antenna pattern may be coupled to the front surface of the upper radiator 220.
[20] The lower carrier 300 is adapted to be coupled to the upper carrier 200 and the rear surface of the upper carrier 200. The lower carrier 300 has one or more connecting holes 310 formed in its front surface so that the holes are coupled to the hooks 210 of the upper carrier 200. The lower carrier 300 has a lower radiator 320 disposed on its front surface. Terminals 330 are formed at the end of the lower radiator 320 for the purpose of feed and ground with a device circuit board. Meanwhile, at least part of the lower radiator 320 is formed to extend up to a location corresponding to the connecting portion 230 of the upper radiator 220.
[21] Further, the lower radiator 320 may also be formed on a front surface of the lower carrier 300 through plating like the upper radiator 220. However, after a thin metal sheet is molded using an antenna pattern, the antenna pattern may be coupled to the front surface of the lower radiator 320.
[22] The upper radiator 220 and the lower radiator 320 disposed on the upper carrier 200 and the lower carrier 300, respectively, come in contact with each other at the connecting portion 230 and therefore are electrically connected to each other when the upper carrier 200 and the lower carrier 300 are coupled together, as shown in FIG. 3. Thus, the upper radiator 220 and the lower radiator 320 can operate as one radiator.
[23] However, in another embodiment of the present invention, the upper radiator 220 does not extend to the rear surface of the upper carrier 200, but a part of the lower radiator 320 may extend to the upper carrier 200 in order to connect the upper and lower radiators 220, 320. In still another embodiment of the present invention, the upper radiator 220 is not connected to the lower radiator 320, but they may be coupled together electromagnetically. [24] An operation and acting effects of the internal antenna constructed as above in accordance with the present invention are described below in detail.
[25] The internal antenna 100 of the present invention has, as shown in FIGS. 1 and 2, a two-layered structure in which the upper carrier 200 and the lower carrier 300 are assembled together. Thus, the upper radiator 220 and the lower radiator 320 can be formed on the top surfaces of the upper carrier 200 and the lower carrier 300, respectively. Hence, since a three-dimensional antenna pattern can be formed, limitations in the design and shape of the pattern are reduced significantly. Due to this, the frequency band such as a high frequency or a low frequency can be set easily.
[26] Further, the internal antenna 100 of the present invention can reduce the area of each of antenna patterns of the upper carrier 200 and the lower carrier 300 while widening an overall antenna area in terms of the two-layered structure radiator. Consequently, the size of the antenna 100 can be reduced to thereby miniaturize an antenna and a portable wireless communication device.
[27] Moreover, the internal antenna 100 of the present invention can have its frequency set freely when compared with the prior art in terms of the antenna pattern of the two- layered structure, secure a dual band through the coupling effect between the upper and lower radiators and realize the broad-band and multiband of a frequency.
[28] In addition, the internal antenna 100 of the present invention has a structure in which the upper carrier 200 and the lower carrier 300 are separately fabricated and then assembled together through the hooks 210 and the connecting holes 310. This makes very convenient the assembly of the internal antenna 100 and production thereof through molding. Thus, an internal antenna having a multi-layered structure radiator can be fabricated easily.
[29] Although the specific embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Therefore, the scope of the present invention is not limited by or to the embodiments as described above, and should be construed to be defined only by the appended claims and their equivalents.

Claims

Claims
[1] An internal antenna comprising: an upper carrier; an upper radiator supportably disposed on a front surface of the upper carrier; a lower radiator disposed on a rear surface of the upper carrier and having terminals for feed; and a lower carrier configured to support the lower radiator and coupled to the upper carrier on the rear surface of the upper carrier. [2] The internal antenna as defined in claim 1, wherein the upper carrier and the lower carrier have hooks and connecting holes formed therein for coupling. [3] The internal antenna as defined in claim 1, wherein at least part of the upper radiator extends up to the rear surface of the upper carrier, so that the upper radiator is electrically connected to the lower radiator. [4] The internal antenna as defined in claim 1, wherein the upper radiator and the lower radiator are made of a metal sheet. [5] A wireless communication device including the internal antenna according to any one of claims 1 to 4.
PCT/KR2007/006194 2006-12-28 2007-12-03 A multi-layered internal antenna WO2008082088A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20-2006-0032702 2006-12-28
KR2020060032702U KR20080002338U (en) 2006-12-28 2006-12-28 A multi-layered inner type antenna

Publications (1)

Publication Number Publication Date
WO2008082088A1 true WO2008082088A1 (en) 2008-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
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WO (1) WO2008082088A1 (en)

Cited By (3)

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WO2014044193A1 (en) 2012-09-18 2014-03-27 Huawei Technologies Co., Ltd. Multi layer 3d antenna carrier arrangement for electronic devices
EP2926970A3 (en) * 2014-04-04 2015-11-25 Samsung Electronics Co., Ltd Antenna module and electronic devices comprising the same
WO2022046562A1 (en) * 2020-08-25 2022-03-03 Qualcomm Incorporated Device, package and/or substrate comprising curved antenna

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KR101024351B1 (en) * 2010-03-15 2011-03-23 주식회사 네오펄스 Internal antenna module
KR101257864B1 (en) * 2011-05-30 2013-04-24 (주)파트론 Antenna structure and method for fabricating the wireless antenna comprising the same
KR101332256B1 (en) * 2012-05-07 2013-11-22 주식회사 마이크로알에프 Antenna Pattern Frame with Projecting Structure

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WO2005064744A1 (en) * 2003-12-26 2005-07-14 Intops Co. Ltd Planar inverted f-type internal antenna using electromagnetic coupling feeding method
KR20060042351A (en) * 2004-11-09 2006-05-12 주식회사 이엠따블유안테나 Multiple band internal antenna with single path patch

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US20040246180A1 (en) * 2002-07-05 2004-12-09 Hironori Okado Dielectric antenna, antenna-mounted substrate, and mobile communication machine having them therein
WO2005064744A1 (en) * 2003-12-26 2005-07-14 Intops Co. Ltd Planar inverted f-type internal antenna using electromagnetic coupling feeding method
KR20060042351A (en) * 2004-11-09 2006-05-12 주식회사 이엠따블유안테나 Multiple band internal antenna with single path patch

Cited By (9)

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Publication number Priority date Publication date Assignee Title
WO2014044193A1 (en) 2012-09-18 2014-03-27 Huawei Technologies Co., Ltd. Multi layer 3d antenna carrier arrangement for electronic devices
CN104604029A (en) * 2012-09-18 2015-05-06 华为技术有限公司 Multi layer 3D antenna carrier arrangement for electronic devices
EP2883279A4 (en) * 2012-09-18 2015-08-19 Huawei Tech Co Ltd Multi layer 3d antenna carrier arrangement for electronic devices
JP2015532060A (en) * 2012-09-18 2015-11-05 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Multi-layer 3D antenna carrier configuration for electronic devices
US9337532B2 (en) 2012-09-18 2016-05-10 Futurewei Technologies, Inc. Multi layer 3D antenna carrier arrangement for electronic devices
EP2926970A3 (en) * 2014-04-04 2015-11-25 Samsung Electronics Co., Ltd Antenna module and electronic devices comprising the same
US10109908B2 (en) 2014-04-04 2018-10-23 Samsung Electronics Co., Ltd. Antenna module and electronic devices comprising the same
WO2022046562A1 (en) * 2020-08-25 2022-03-03 Qualcomm Incorporated Device, package and/or substrate comprising curved antenna
US11658403B2 (en) 2020-08-25 2023-05-23 Qualcomm Incorporated Device, package and/or substrate comprising curved antenna

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