EP2940790A1 - Communication device antenna - Google Patents

Communication device antenna Download PDF

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Publication number
EP2940790A1
EP2940790A1 EP14166275.9A EP14166275A EP2940790A1 EP 2940790 A1 EP2940790 A1 EP 2940790A1 EP 14166275 A EP14166275 A EP 14166275A EP 2940790 A1 EP2940790 A1 EP 2940790A1
Authority
EP
European Patent Office
Prior art keywords
metal part
antenna
metal
communication device
housing
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP14166275.9A
Other languages
German (de)
French (fr)
Inventor
Hsin-Cheng Su
Chun-Ta Liu
Shu-Chen Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
King Slide Technology Co Ltd
Original Assignee
King Slide Technology 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 King Slide Technology Co Ltd filed Critical King Slide Technology Co Ltd
Priority to EP14166275.9A priority Critical patent/EP2940790A1/en
Publication of EP2940790A1 publication Critical patent/EP2940790A1/en
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the present invention is related to a communication device antenna utilizing a metal housing for emitting and receiving radio signals of a communication device according to the pre-characterizing clause of claim 1.
  • plastic housings are mainly used by manufacturers due to cost concerns, in order to maintain basic radiation characteristics of an antenna.
  • metal housing is currently brought by Apple iPhones and Macbooks. Since the metal housing has light weight, good heat dissipation, high strength, high impact resistance, good looking, anti-electromagnetic and recyclable characteristics, the metal housing is getting more and more popular. Therefore, the metal housings are mainly used in development of new generations of the mobile communication products.
  • US patent No. 8,054,231 B2 disclosed by Ahn et al. teaches a metal case having a slot, which can be used as a slot antenna of a mobile device.
  • the slot may obviously ruin appearance of the metal case, and the slot needs to be arranged at a position corresponding to a specific area of the metal case. Therefore, it is important to design a proper antenna to allow electromagnetic waves to penetrate the metal case for achieving communication purposes without obviously ruining the appearance of the metal case.
  • the present invention aims at providing a communication device antenna utilizing a metal housing for emitting and receiving radio signals of a communication device.
  • the claimed communication device antenna comprises a metal housing, a first antenna, a signal feed point, a ground point and a second antenna.
  • the metal housing has a first lateral side and a second lateral side corresponding to the first lateral side.
  • the first antenna comprises a first metal part, a second metal part, a third metal part and a fourth metal part.
  • the third metal part is extended and connected between the first metal part and the second metal part, and the third metal part is located adjacent to the first lateral side of the metal housing.
  • the fourth metal part is connected to the metal housing.
  • the second antenna comprises a first metal part, a second metal part and a third metal part.
  • the first metal part of the second antenna is connected to the signal feed point and the second metal part of the first antenna.
  • the second metal part of the second antenna is connected to the ground point and the fourth metal part of the first antenna.
  • the third metal part of the second antenna is extended and connected between the first metal part and the second metal part of the second antenna.
  • a slit is formed and located between the metal housing and the first antenna.
  • FIG. 1 and FIG. 2 are diagrams showing a communication device 10 having a metal housing 12 according to an embodiment of the present invention.
  • the metal housing 12 has a first lateral side 14a, and a second lateral side 14b located at a position corresponding to the first lateral side 14a.
  • Antenna arrangement of the communication device 10 comprises a first antenna 16 and a second antenna 18.
  • the first antenna 16 comprises a first metal part 20, a second metal part 22, a third metal part 24 and a fourth metal part 26.
  • the first metal part 20 is a straight section
  • the second metal part 22 is also a straight section
  • the first metal part 20 is longer than the second metal part 22.
  • the third metal part 24 is extended and connected between the first metal part 20 and the second metal part 22. In a preferred embodiment, the third metal part 24 is located adjacent to the first lateral side 14a of the metal housing 12.
  • the fourth metal part 26 is connected to the second lateral side 14b of the metal housing 12.
  • the first metal part 20, the second metal part 22, the third metal part 24 and the fourth metal part 26 together define an antenna trace.
  • a slit 15 is formed and located between the metal housing 12 and the first antenna 16, such that the first antenna 16 is not short-circuited.
  • the slit 15 is not limited by a shape and arrangement disclosed in the embodiment of the present invention.
  • a printed circuit board 30 is further arranged in the communication device 10.
  • the printed circuit board 30 comprises a signal feed point 32 and a ground point 34.
  • the second antenna 18 comprises a first metal part 36, a second metal part 38 and a third metal part 40 extended and connected between the first metal part 36 and the second metal part 38.
  • first metal part 36 is located between the first metal part 20 and the second metal part 22 of the first antenna 16
  • second metal part 38 is located between the first metal part 20 and the fourth metal part 26 of the first antenna 16.
  • the first metal part 36 is connected to the signal feed point 32 and the second metal part 22 of the first antenna 16.
  • the second metal part 38 is connected to the ground point 34 and the fourth metal part 26 of the first antenna 16.
  • the first antenna 16 is configured to work as a larger loop antenna, which is applicable to a first frequency; and the second antenna 18 is configured to work as a smaller loop antenna, which is applicable to a second frequency. Therefore, when the communication device 10 is turned on to provide power to the first antenna 16 and the second antenna 18 via the signal feed point 32 and the ground point 34, the metal housing can work as a radiation unit, for transmitting and receiving radio signals of the communication device 10.

Abstract

The present invention relates to a communication device antenna, including a metal housing (12), a first antenna (16) and a second antenna (18). The metal housing (12) has a first lateral side (14a) and a second lateral side (14b). The first antenna (16) includes a first metal part (20), a second metal part (22), a third metal part (24) and a fourth metal part (26). The third metal part (24) is connected between the first and second metal parts (20, 22), and adjacent to the first lateral side (14a) of the metal housing (12). The fourth metal part (26) is connected to the metal housing (12). The second antenna (18) includes a first metal part (36) and a second metal part (38). The first metal part (36) of the second antenna (18) is connected to the signal feed point (32) and the second metal part (22) of the first antenna (16). The second metal part (38) of the second antenna (18) is connected to the ground point (34) and the fourth metal part (26) of the first antenna (16).

Description

    Field of the Invention
  • The present invention is related to a communication device antenna utilizing a metal housing for emitting and receiving radio signals of a communication device according to the pre-characterizing clause of claim 1.
    • Background of the Invention
  • During product development processes of conventional communication devices, such as mobile communication products, plastic housings are mainly used by manufacturers due to cost concerns, in order to maintain basic radiation characteristics of an antenna. However, a trend of metal housing is currently brought by Apple iPhones and Macbooks. Since the metal housing has light weight, good heat dissipation, high strength, high impact resistance, good looking, anti-electromagnetic and recyclable characteristics, the metal housing is getting more and more popular. Therefore, the metal housings are mainly used in development of new generations of the mobile communication products. For example, US patent No. 8,054,231 B2 disclosed by Ahn et al. teaches a metal case having a slot, which can be used as a slot antenna of a mobile device. But the slot may obviously ruin appearance of the metal case, and the slot needs to be arranged at a position corresponding to a specific area of the metal case. Therefore, it is important to design a proper antenna to allow electromagnetic waves to penetrate the metal case for achieving communication purposes without obviously ruining the appearance of the metal case.
    • Summary of the Invention
  • This in mind, the present invention aims at providing a communication device antenna utilizing a metal housing for emitting and receiving radio signals of a communication device.
  • This is achieved by a communication device antenna according to claim 1. The dependent claims pertain to corresponding further developments and improvements.
  • As will be seen more clearly from the detailed description following below, the claimed communication device antenna comprises a metal housing, a first antenna, a signal feed point, a ground point and a second antenna. The metal housing has a first lateral side and a second lateral side corresponding to the first lateral side. The first antenna comprises a first metal part, a second metal part, a third metal part and a fourth metal part. The third metal part is extended and connected between the first metal part and the second metal part, and the third metal part is located adjacent to the first lateral side of the metal housing. The fourth metal part is connected to the metal housing. The second antenna comprises a first metal part, a second metal part and a third metal part. The first metal part of the second antenna is connected to the signal feed point and the second metal part of the first antenna. The second metal part of the second antenna is connected to the ground point and the fourth metal part of the first antenna. The third metal part of the second antenna is extended and connected between the first metal part and the second metal part of the second antenna. A slit is formed and located between the metal housing and the first antenna.
    • Brief Description of the Drawings
  • In the following, the invention is further illustrated by way of example, taking reference to the accompanying drawings thereof:
    • FIG. 1 is diagram showing antenna arrangement of a communication device according to an embodiment of the present invention when viewing at a specific angle, and
    • FIG. 2 is diagram showing antenna arrangement of the communication device according to the embodiment of the present invention when viewing at another angle.
    Detailed Description
  • Fig. 1 and FIG. 2 are diagrams showing a communication device 10 having a metal housing 12 according to an embodiment of the present invention. The metal housing 12 has a first lateral side 14a, and a second lateral side 14b located at a position corresponding to the first lateral side 14a.
  • Antenna arrangement of the communication device 10 comprises a first antenna 16 and a second antenna 18. The first antenna 16 comprises a first metal part 20, a second metal part 22, a third metal part 24 and a fourth metal part 26. In a preferred embodiment, the first metal part 20 is a straight section, the second metal part 22 is also a straight section, and the first metal part 20 is longer than the second metal part 22.
  • The third metal part 24 is extended and connected between the first metal part 20 and the second metal part 22. In a preferred embodiment, the third metal part 24 is located adjacent to the first lateral side 14a of the metal housing 12.
  • In a preferred embodiment, the fourth metal part 26 is connected to the second lateral side 14b of the metal housing 12.
  • The first metal part 20, the second metal part 22, the third metal part 24 and the fourth metal part 26 together define an antenna trace. In addition, a slit 15 is formed and located between the metal housing 12 and the first antenna 16, such that the first antenna 16 is not short-circuited. Moreover, the slit 15 is not limited by a shape and arrangement disclosed in the embodiment of the present invention.
  • A printed circuit board 30 is further arranged in the communication device 10. The printed circuit board 30 comprises a signal feed point 32 and a ground point 34.
  • The second antenna 18 comprises a first metal part 36, a second metal part 38 and a third metal part 40 extended and connected between the first metal part 36 and the second metal part 38. Wherein the first metal part 36 is located between the first metal part 20 and the second metal part 22 of the first antenna 16, and the second metal part 38 is located between the first metal part 20 and the fourth metal part 26 of the first antenna 16. The first metal part 36 is connected to the signal feed point 32 and the second metal part 22 of the first antenna 16. The second metal part 38 is connected to the ground point 34 and the fourth metal part 26 of the first antenna 16.
  • According to the above arrangement, the first antenna 16 is configured to work as a larger loop antenna, which is applicable to a first frequency; and the second antenna 18 is configured to work as a smaller loop antenna, which is applicable to a second frequency. Therefore, when the communication device 10 is turned on to provide power to the first antenna 16 and the second antenna 18 via the signal feed point 32 and the ground point 34, the metal housing can work as a radiation unit, for transmitting and receiving radio signals of the communication device 10.
  • According to the above illustration, efficacies and advantages of the present invention are listed as follows:
    • a. appearance of the metal housing is not obviously ruined, and in contrast to the prior art, the metal housing has better appearance; and
    • b. the antenna is arranged at an edge of the metal housing, and in contrast to the prior art, the antenna occupies less space.

Claims (3)

  1. A communication device antenna, characterized by:
    a metal housing (12) having a first lateral side (14a) and a second lateral side (14b) corresponding to the first lateral side (14a);
    a first antenna (16) comprising:
    a first metal part (20);
    a second metal part (22);
    a third metal part (24) extended and connected between the first metal part (22) and the second metal part (24), and located adjacent to the first lateral side (14a) of the metal housing (12); and
    a fourth metal part (26) connected to the metal housing (12);
    a signal feed point (32);
    a ground point (34); and
    a second antenna (18) comprising:
    a first metal part (36) connected to the signal feed point (32) and the second metal part (22) of the first antenna (16);
    a second metal part (38) connected to the ground point (34) and the fourth metal part (26) of the first antenna (16); and
    a third metal part (40) extended and connected between the first metal part (36) and the second metal part (38) of the second antenna (18);
    wherein a slit (15) is formed and located between the metal housing (12) and the first antenna (16).
  2. The communication device antenna of claim 1, characterized in that the first metal part (20) of the first antenna (16) is a straight section, the second metal part (22) of the first antenna (16) is a straight section, and the first metal part (20) of the first antenna (16) is longer than the second metal part (22) of the first antenna (16).
  3. The communication device antenna of claim 1 or 2, characterized in that the first metal part (36) of the second antenna (18) is located between the first metal part (20) and the second metal (22) part of the first antenna (16), and the second metal part (38) of the second antenna (18) is located between the first metal part (20) and the fourth metal part (26) of the first antenna (16) .
EP14166275.9A 2014-04-28 2014-04-28 Communication device antenna Withdrawn EP2940790A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14166275.9A EP2940790A1 (en) 2014-04-28 2014-04-28 Communication device antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14166275.9A EP2940790A1 (en) 2014-04-28 2014-04-28 Communication device antenna

Publications (1)

Publication Number Publication Date
EP2940790A1 true EP2940790A1 (en) 2015-11-04

Family

ID=50588567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14166275.9A Withdrawn EP2940790A1 (en) 2014-04-28 2014-04-28 Communication device antenna

Country Status (1)

Country Link
EP (1) EP2940790A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040257283A1 (en) * 2003-06-19 2004-12-23 International Business Machines Corporation Antennas integrated with metallic display covers of computing devices
US20110063180A1 (en) * 2009-09-15 2011-03-17 (1) Silitek Electronic (Guangzhou) Co., Ltd. Dual-loop antenna and multi-frequency multi-antenna module
WO2011076582A1 (en) * 2009-12-21 2011-06-30 Lite-On Mobile Oyj An antenna arrangement
US8054231B2 (en) 2008-05-06 2011-11-08 Samsung Electronics Co., Ltd. Mobile terminal having metal case and antenna structure
WO2012153282A1 (en) * 2011-05-12 2012-11-15 Tyco Electronics (Shanghai) Co. Ltd. Antenna assembly and mobile terminal
US20130093636A1 (en) * 2011-10-17 2013-04-18 Robert Kenoun Broad-Band, Multi-Band Antenna
EP2621017A1 (en) * 2012-01-27 2013-07-31 Research In Motion Limited Mobile wireless communications device including electrically conductive portable housing sections defining an antenna

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040257283A1 (en) * 2003-06-19 2004-12-23 International Business Machines Corporation Antennas integrated with metallic display covers of computing devices
US8054231B2 (en) 2008-05-06 2011-11-08 Samsung Electronics Co., Ltd. Mobile terminal having metal case and antenna structure
US20110063180A1 (en) * 2009-09-15 2011-03-17 (1) Silitek Electronic (Guangzhou) Co., Ltd. Dual-loop antenna and multi-frequency multi-antenna module
WO2011076582A1 (en) * 2009-12-21 2011-06-30 Lite-On Mobile Oyj An antenna arrangement
WO2012153282A1 (en) * 2011-05-12 2012-11-15 Tyco Electronics (Shanghai) Co. Ltd. Antenna assembly and mobile terminal
US20130093636A1 (en) * 2011-10-17 2013-04-18 Robert Kenoun Broad-Band, Multi-Band Antenna
EP2621017A1 (en) * 2012-01-27 2013-07-31 Research In Motion Limited Mobile wireless communications device including electrically conductive portable housing sections defining an antenna

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