EP2690704B1 - Übertragungsleitung für tragbares elektronisches Gerät - Google Patents

Übertragungsleitung für tragbares elektronisches Gerät Download PDF

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Publication number
EP2690704B1
EP2690704B1 EP12177616.5A EP12177616A EP2690704B1 EP 2690704 B1 EP2690704 B1 EP 2690704B1 EP 12177616 A EP12177616 A EP 12177616A EP 2690704 B1 EP2690704 B1 EP 2690704B1
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EP
European Patent Office
Prior art keywords
conductive
electronic device
mobile electronic
electrical ground
short
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EP12177616.5A
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English (en)
French (fr)
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EP2690704A1 (de
Inventor
Houssam Kanj
Huanhuan Gu
James Paul Warden
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BlackBerry Ltd
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BlackBerry Ltd
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Priority to EP12177616.5A priority Critical patent/EP2690704B1/de
Priority to CA2820155A priority patent/CA2820155C/en
Publication of EP2690704A1 publication Critical patent/EP2690704A1/de
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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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements

Definitions

  • the specification relates generally to mobile electronic devices, and specifically to a transmission line for a mobile electronic device.
  • Mobile electronic devices such as smartphones, are generally becoming more compact.
  • smartphones are generally becoming more compact.
  • the housings of smartphones can include metal components which also interfere with antenna performance.
  • the introduction of network technologies such as LTE, which employ lower frequencies, can heighten the difficulties in obtaining acceptable performance from smaller antennas.
  • EP 2 424 033 A1 discloses a mobile wireless communications device which includes a portable housing having a metallic front housing forming a peripheral sidewall as a metallic ring.
  • US 2008/0316116 A1 discloses a handheld electronic device that contains a conductive housing and other conductive elements.
  • US 6,266,019 B1 discloses a communications device having an antenna and a housing having a front section and a rear section, one of the front section and the rear section being conductive.
  • US 2009/0256758 A1 discloses a portable electronic device that has a hybrid antenna.
  • US2010090921 discloses a built-in antenna device for improving the radiation efficiency in a portable wireless terminal having an external metallic part.
  • a mobile electronic device comprising: an electrical ground member supporting at least one antenna; a housing containing the electrical ground member and having a conductive ring defining the perimeter of the housing; and a conductive tuning member disposed between the conductive ring and the electrical ground member, for transforming an impedance between the electrical ground member and the conductive ring; wherein the conductive tuning member is connected to the conductive ring by a first short, and to the electrical ground member by a second short.
  • a method comprising: fastening a conductive tuning member between a conductive ring defining a perimeter of a housing of a mobile electronic device, and an electrical ground member contained within the housing; selecting a first short location for connecting the conductive tuning member to the conductive ring; and selecting a second short location for connecting the conductive tuning member to the electrical ground member.
  • FIG. 1 depicts a mobile electronic device 100, which in the present embodiment is based on the computing environment and functionality of a hand-held wireless communication device. It will be understood, however, that mobile electronic device 100 is not limited to a hand-held wireless communication device. Other mobile electronic devices are also contemplated, such as cellular phones, smart phones, Personal Digital Assistants ("PDAs”), media or MP3 players, tablet computers, laptop computers, and the like.
  • PDAs Personal Digital Assistants
  • Mobile electronic device 100 includes a housing 104 which supports the various other components of mobile electronic device 100.
  • Housing 104 includes a conductive (that is, electrically conductive) ring 108 (also referred to herein simply as "ring 108") defining the perimeter of housing 104.
  • ring 108 extends continuously around the perimeter of housing 104.
  • Ring 108 can be constructed of any electrically conductive material, including any one or combination of aluminum and other metals.
  • the remaining portion of housing 104 can be constructed of any suitable material, or combination of materials, including without limitation plastics (e.g. Polycarbonate/Acrylonitrile Butadiene Styrene (“PC/ABS”)) and metals (e.g. aluminum or other metals).
  • PC/ABS Polycarbonate/Acrylonitrile Butadiene Styrene
  • Mobile electronic device 100 also includes one or more output devices, including without limitation a display 112 and a speaker 116.
  • output devices including without limitation a display 112 and a speaker 116.
  • Other output devices are also contemplated but not shown, such as a Light Emitting Diode (LED) indicator, a vibrating motor, and the like.
  • LED Light Emitting Diode
  • Mobile electronic device 100 additionally includes one or more input devices, including without limitation a microphone 120, a keypad 124.
  • Keypad 124 can be a full QWERTY keyboard or a reduced QWERTY keyboard.
  • Mobile electronic device can also include a pointing device such as a touchpad 128.
  • touchpad 128 can be replaced with a trackball.
  • keypad 124 and touchpad 128 can be omitted, and a touch screen input device can be integrated with display 112.
  • the touch screen input device can be provided in addition to keypad 124 and touchpad 128.
  • one or more function keys can be provided in addition to keypad 124. Further combinations and variations will occur to those skilled in the art.
  • Mobile electronic device 100 includes a processor 132 interconnected with a computer readable storage medium (that is, a non-transitory medium) in the form of a memory 136.
  • Memory 136 can be any suitable combination of volatile (e.g. Random Access Memory (“RAM”)) and nonvolatile (e.g. read only memory (“ROM”), Electrically Erasable Programmable Read Only Memory (“EEPROM”), flash memory, magnetic computer storage device, or optical disc) memory.
  • RAM Random Access Memory
  • ROM read only memory
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • flash memory magnetic computer storage device, or optical disc
  • Mobile electronic device 100 also includes a communications interface 140 interconnected with processor 132.
  • Communications interface 140 allows mobile electronic device 100 to communicate with other computing devices via a link 142 and a network 144.
  • Network 144 can include any suitable combination of wired and/or wireless networks, including but not limited to a Wide Area Network ("WAN”) such as the Internet, a Local Area Network (“LAN”), cell phone networks, WiFi networks, WiMax networks and the like.
  • WAN Wide Area Network
  • LAN Local Area Network
  • cell phone networks WiFi networks
  • WiMax networks WiMax networks
  • Link 142 can therefore be a wireless link based on Global System for Mobile communications ("GSM”), General Packet Radio Service (“GPRS”), Enhanced Data rates for GSM Evolution (“EDGE”), and the third-generation mobile communication system (3G), Institute of Electrical and Electronic Engineers (“IEEE”) 802.11 (WiFi), Long Term Evolution (LTE), or other wireless protocols.
  • GSM Global System for Mobile communications
  • GPRS General Packet Radio Service
  • EDGE Enhanced Data rates for GSM Evolution
  • 3G Third-generation mobile communication system
  • IEEE Institute of Electrical and Electronic Engineers
  • WiFi WiFi
  • LTE Long Term Evolution
  • link 142 can be a wired link.
  • Communications interface 140 is selected for compatibility with link 142 and network 144.
  • Communications interface 140 thus includes one or more transmitter/receiver assemblies, or antennas, and associated circuitry.
  • communications interface 140 includes an antenna 150, and can also include processing circuitry for controlling antenna 150. Further discussion of antenna 150 will be provided below.
  • the above-mentioned input and output devices of mobile electronic device 104 can also be seen in Figure 2 .
  • microphone 120, keypad 124 and touchpad 128 are shown interconnected with processor 132.
  • the input devices are configured to receive input and provide data representative of such input to processor 132.
  • keypad 124 can receive input in the form of the depression of one or more keys, and can then provide data representative of such input to processor 132.
  • the data provided to processor 132 can be, for example, an American Standard Code for Information Interchange (ASCII) value for each of the depressed keys.
  • Touch pad 128 can receive input in the form of depression of touch pad 128 or swipe gestures along the surface of touch pad 128, and can then provide data representative of such input to processor 132 in the form of, for example, coordinates representing the location of a virtual cursor.
  • ASCII American Standard Code for Information Interchange
  • Display 112 is also shown interconnected with processor 132.
  • Display 112 includes display circuitry 152 controllable by processor 132 for generating interfaces including representations of data and/or applications maintained in memory 136.
  • Display 112 includes a flat panel display comprising any one of, or any suitable combination of, a Liquid Crystal Display (LCD), a plasma display, an Organic Light Emitting Diode (OLED) display, and the like.
  • Circuitry 152 can thus include any suitable combination of display buffers, transistors, LCD cells, plasma cells, phosphors, LEDs and the like.
  • the input devices of mobile electronic device 104 include a touch screen input device as discussed above, the touch screen can be integrated with display 112.
  • Mobile electronic device 100 can be powered by a battery (not shown), though it will be understood that in some non-limiting embodiments, mobile electronic device 100 can be supplied, in addition to or instead of the battery, with electricity by a wired connection to a wall outlet or other power source.
  • a battery not shown
  • mobile electronic device 100 can be supplied, in addition to or instead of the battery, with electricity by a wired connection to a wall outlet or other power source.
  • mobile electronic device 100 includes an electrical ground member 300 which supports or is otherwise coupled to antenna 150.
  • Antenna 150 can take a wide variety of configurations, depending on intended application of antenna 150 (that is, the intended nature of link 142 and network 144 with which mobile electronic device 100 will interact).
  • electrical ground member 300 is a printed circuit board (PCB), and will therefore be referred to herein as PCB 300.
  • PCB 300 supports various internal components of mobile electronic device, including processor 132.
  • PCB 300 can also be electrically connected to other components of mobile electronic device 100, such as display 112, as well as the other input and output devices of mobile electronic device.
  • conductive ring 108 which surrounds PCB 300 and antenna 150.
  • display 112 is also conductive and ring 108 in combination with display 112 can therefore form a conductive open box around antenna 150.
  • display 112 can be electrically connected to ring 108 in some examples. In other words, ring 108 and display 112 can present obstacles to radiation generated by antenna 150.
  • Mobile electronic device 100 also includes a conductive tuning member 304 disposed between ring 108 and PCB 300.
  • conductive tuning member 304 is for transforming an impedance between electrical ground member (e.g. PCB) 300 and conductive ring 108.
  • Tuning member 304 is connected at a first end (i.e. shorted) to ring 108 by a first short 308, and to PCB 300 (specifically, to a ground plane of PCB 300) by a second short 312.
  • Second short 312 as seen in Figure 3 , need not be located at the second end (opposite the first end) of tuning member 304.
  • second short 312 can be located at a point along tuning member 304 between the first and second ends of tuning member 304, such that the second end of tuning member 304 is an open end. In other examples, however, second short 312 can be located at second end 804 of tuning member 304.
  • tuning member 304 is shown in greater detail in a partial view of the cross-section of Figure 3 . As discussed above, Figure 4 shows a portion of ring 108, as well as tuning member 304 and PCB 300 and shorts 308 and 312 between ring 108 and PCB 300.
  • tuning member 304 is a transmission line formed from a conductive material, such as copper; tuning member 304 will therefore also be referred to as transmission line 304 herein.
  • transmission line 304 can be a conductive sheet, arranged substantially in parallel to ring 108, on the interior of ring 108 in a space defined between ring 108 and PCB 300. It is contemplated that transmission line 304 need not be exactly parallel to ring 108.
  • Figure 4 shows an edge of transmission line 304, and the faces of transmission line 104 lie orthogonally to the page on which Figure 4 appears. It is contemplated that the size of the space between ring 108 and PCB 300 has been exaggerated for illustrative purposes in Figure 4 ; the space can be smaller (or greater) than shown.
  • Transmission line 304 is connected to ring 108 by way of a fastener 400, such as a strip of insulating (that is, non electrically conductive) tape.
  • a fastener 400 such as a strip of insulating (that is, non electrically conductive) tape.
  • Other suitable fasteners can also be employed, as will now be apparent to those skilled in the art.
  • any suitable fastener may be employed to position transmission line 304 such that transmission line 304 is electrically connected to ring 108 and PCB 300 by shorts 308 and 312 (and, as will be discussed in greater detail below, any additional connections between transmission line 304 and PCB 300) but is otherwise electrically isolated from ring 108 and PCB 300. It is contemplated that in some examples, further shorts in addition to shorts 308 and 312 may be provided.
  • transmission line 304 alters the impedance between PCB 300 and ring 108, in comparison to the impedance between PCB 300 and ring 108 in the absence of transmission line 304.
  • the flow of current in PCB 300 and transmission line 304 is altered.
  • bodies of material such as the ground plane of PCB 300 and ring 108, can act as radiators themselves, particularly at low frequencies, and can therefore interfere with the radiation from antenna 150.
  • the flow of electrical current through ring 108 and PCB 300 determines the nature and extent of any interference.
  • Figures 5-7 each plot the S11 (return loss) performance of antenna 150 versus the frequency at which antenna 150 is configured to radiate.
  • Figure 5 shows the free-space performance of an example antenna 150.
  • Figure 5 shows the performance of antenna 150 when antenna 150 is not installed within mobile electronic device 100.
  • antenna 150 is shown when antenna 150 is installed within housing 104 of mobile electronic device 100 as discussed above, but in the absence of transmission line 304. As seen in Figure 6 , antenna 150 becomes narrow-banded (about -2 dB each side), in comparison with the free space performance shown in Figure 5 . However, an additional resonance also appears in Figure 6 , at about 700MHz.
  • antenna 150 is shown when antenna 150 is installed within housing 104 of mobile electronic device 100, and when transmission line 304 is connected as shown in Figures 3 and 4 .
  • the bandwidth of antenna 150 is broadened, and a 698MHz to 746MHz band (suitable for use in LTE networks, for example) can also be obtained.
  • antenna 150 can cover the GSM 850/900MHz bands.
  • transmission line 304 when connected to ring 108 and PCB 300, can improve the performance of antenna 150 by altering the impedance between ring 108 and PCB 300 and thereby disrupting the current flow between PCB 300 and ring 108.
  • transmission line 304 The effect of transmission line 304 on the performance of antenna 150 is determined at least in part by the configuration of transmission line and shorts 308, 312. Referring now to Figure 8 , the configuration of transmission line 304 will be discussed in greater detail.
  • Figure 8 depicts transmission line 304 and shorts 308 and 312 in isolation, for illustrative purposes.
  • short 308 provides the electrical connection between transmission line 304 and ring 108 (not shown in Figure 8 )
  • short 312 provides the electrical connection between transmission line 304 and PCB 300 (not shown in Figure 8 ).
  • Transmission line 304 has first and second ends, labelled as ends 800 and 804 respectively in Figure 8 .
  • the parameters determining the effect of transmission line 304 include the distance between first short 308 and second short 312, denoted “L1" in Figure 8 .
  • the parameters determining the effect of transmission line 304 also include the total length of transmission line 304, meaning the distance between first end 800 and second end 804, denoted "L2" in Figure 8 .
  • first short 308 is adjacent first end 800 of transmission line 304. In other words, first short 308 is located close to, but not necessarily exactly at, first end 800 (although first short 308 can be exactly at first end 800 in some examples).
  • transmission line 304 or other conductive tuning members can be used with a wide range of other configurations for mobile electronic device 100; the discussion below is non-limiting and provided for illustrative purposes.
  • the example mobile electronic device 100 to be discussed below is as shown in Figures 1 and 3 .
  • the example mobile electronic device 100 has external dimensions of 108mm (height) x 60mm (width) x 8mm (depth).
  • the height of antenna 150 is about 3.2mm and the ground clearance of antenna 150 is about 10mm; the thickness of PCB 300 is about 0.8mm.
  • L1 can therefore be chosen from among those discussed above, or a variety of other values, depending on the final performance required of antenna 150.
  • an L1 value of 5mm may provide improved performance in the LTE 698-798MHz band.
  • an L1 value of 40mm may provide improved performance in the CDMA850/GSM900MHz band.
  • L1 is increased beyond 40mm, it may be possible to obtain acceptable antenna performance in all three of the above-mentioned bands.
  • first short 308 is adjacent first end 800 and second short 312 is adjacent second end 804.
  • L1 and L2 are equal to each other.
  • an L2 value of 10mm is illustrated by curve 1200; an L2 value of 20mm is illustrated by curve 1204; an L2 value of 30mm is illustrated by curve 1208; an L2 value of 40mm is illustrated by curve 1212; and an L2 value of 50mm is illustrated by curve 1216.
  • the method can include fastening conductive tuning member 304 (such as a transmission line) between conductive ring 108 and electrical ground member 300 (such as a PCB). Following the attachment of conductive tuning member 304, the method can include selecting first and second short locations for connecting conductive tuning member 304 to conductive ring 108 and electrical ground member 300, respectively. The method can further include measuring the performance of antenna 150, and adjusting the selected parameters based on the results of the measuring.
  • conductive tuning member 304 such as a transmission line
  • electrical ground member 300 such as a PCB
  • conductive tuning member 304 is shown inside ring 108, it is possible to mount conductive tuning member externally to ring 108 in some examples.
  • conductive tuning member 304 need not be a conductive sheet as described. Indeed, a variety of tuning member structures are contemplated, including a coax line, buried microstrip lines, and the like. Additional tuning member geometries will now occur to those skilled in the art.
  • conductive tuning member 304 can be connected to electrical ground member 300 at a plurality of locations, instead of the single second short 312 discussed above.
  • the plurality of locations can be connected to electrical ground member 300 via ON/OFF pins, which can be set to either closed (e.g. shorted) or open positions to select the parameter L1.
  • the setting of such pins or other suitable switching components can be conducted automatically by processor 132 based on the currently active operation frequency of antenna 150.
  • electrical grounding member 300 can carry discrete components or other circuitry, such as LC circuits (that is, "resonant circuits") at each of the locations at which conductive tuning member 304 is connected to electrical ground member 300.
  • LC circuits can be selected for frequency response, such that at some frequencies, the LC circuit behaves as an open circuit while at other frequencies the LC circuit behaves as a short.
  • which of the plurality of short locations are "active" that is, which locations are actually shorting conductive tuning member 304 to electrical ground member 300) at any given time depends on the operating frequency of antenna 150.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Aerials (AREA)

Claims (12)

  1. Mobile elektronische Vorrichtung (100), die umfasst:
    ein elektrisches Erdungselement (300), das mindestens eine Antenne (150) trägt;
    ein Gehäuse (104), das das elektrische Erdungselement enthält und einen leitenden Ring (108) besitzt, der den Umfang des Gehäuses definiert; und
    ein leitendes Abstimmelement (304), das in einem Raum zwischen dem leitenden Ring und dem elektrischen Erdungselement zum Abstimmen der mobilen elektronischen Vorrichtung (100) durch Umwandeln einer Impedanz zwischen dem elektrischen Erdungselement und dem leitenden Ring angeordnet ist;
    wobei das leitende Abstimmelement (304) eine langgestreckte Übertragungsleitung umfasst, die sich im Wesentlichen parallel zu dem leitenden Ring erstreckt;
    wobei das leitende Abstimmelement mit dem leitenden Ring durch einen ersten Kurzschluss (308) an einem ersten Punkt, wobei der erste Punkt an einem ersten Ende (800) des leitenden Abstimmelements liegt oder an dieses angrenzt, und mit dem elektrischen Erdungselement durch einen zweiten Kurzschluss (312) an einem zweiten Punkt entlang der Länge des leitenden Abstimmelements in einem vorgegebenen Abstand L1 von dem ersten Punkt und nicht an einem zweiten Ende gegenüber dem ersten Ende verbunden ist, derart, dass das zweite Ende des leitenden Abstimmelements ein offenes Ende ist.
  2. Mobile elektronische Vorrichtung (100) nach Anspruch 1, wobei sich der leitende Ring durchgängig um das Gehäuse erstreckt.
  3. Mobile elektronische Vorrichtung (100) nach Anspruch 2, wobei die Übertragungsleitung eine leitende Platte oder eine Koaxialleitung oder einen bedeckten Mikrostreifen umfasst.
  4. Mobile elektronische Vorrichtungen (100) nach Anspruch 3, wobei die Übertragungsleitung eine leitende Platte im Wesentlichen parallel zu dem leitenden Ring umfasst und wobei die leitende Platte auf dem leitenden Ring durch eine isolierende Befestigung getragen wird.
  5. Mobile elektronische Vorrichtung (100) nach einem der Ansprüche 1 bis 4, wobei das elektrische Erdungselement eine Leiterplatte (PCB) ist.
  6. Mobile elektronische Vorrichtung (100) nach Anspruch 5, wobei die Antenne auf der PCB befestigt ist.
  7. Mobile elektronische Vorrichtung (100) nach einem der Ansprüche 1 bis 6, die ferner eine Anzeige umfasst, die an das elektrische Erdungselement gekoppelt ist.
  8. Mobile elektronische Vorrichtung (100) nach Anspruch 7, wobei die Anzeige an den leitenden Ring gekoppelt ist.
  9. Mobile elektronische Vorrichtung (100) nach einem der Ansprüche 1 bis 8, die ferner mindestens einen zusätzlichen Kurzschluss umfasst, der das leitende Abstimmelement und das elektrische Erdungselement verbindet.
  10. Mobile elektronische Vorrichtung (100) nach Anspruch 9, wobei der zweite Kurzschluss und der mindestens eine zusätzliche Kurzschluss mit verschiedenen von mehreren Resonanzschaltkreisen auf dem elektrischen Erdungselement verbunden sind.
  11. Mobile elektronische Vorrichtung (100) nach Anspruch 10, wobei jede der mehreren diskreten Komponenten einen LC-Schaltkreis umfasst.
  12. Verfahren, das umfasst:
    Befestigen eines leitenden Abstimmelements (30), das eine langgestreckte Übertragungsleitung, die sich im Wesentlichen parallel zu einem leitenden Ring (108) erstreckt, der einen Umfang eines Gehäuses (104) einer mobilen elektronischen Vorrichtung (100) definiert, in einem Raum zwischen dem leitenden Ring und einem elektrischen Erdungselement (300), die innerhalb des Gehäuses enthalten sind, umfasst;
    Auswählen eines ersten Kurzschlussortes (308) zum Verbinden des leitenden Abstimmelements mit dem leitenden Ring, wobei der erste Kurzschlussort (308) an einem ersten Ende (800) des leitenden Abstimmelements (304) liegt oder daran angrenzt; und
    Auswählen eines zweiten Kurzschlussortes (312) zum Verbinden des leitenden Abstimmelements mit dem elektrischen Erdungselement, wobei der zweite Kurzschlussort (312) an einem Punkt entlang der Länge des leitenden Abstimmelements und nicht an einem zweiten Ende gegenüber dem ersten Ende liegt, derart, dass das zweite Ende des leitenden Abstimmelements ein offenes Ende ist;
    Verbinden des leitenden Abstimmelements (304) an dem ersten Kurzschlussort (308) mit dem leitenden Ring (108) und Verbinden des leitenden Abstimmelements (304) an dem zweiten Kurzschlussort (108) mit dem elektrischen Erdungselement (300); wobei das leitende Abstimmelement konfiguriert ist, anschließend an eine Verbindung des leitenden Abstimmelements an dem ersten und dem zweiten Kurzschlussort eine mobile elektronische Vorrichtung (100), die durch das elektrische Erdungselement getragen wird, durch Umwandeln einer Impedanz zwischen dem elektrischen Erdungselement und dem leitenden Ring abzustimmen.
EP12177616.5A 2012-07-24 2012-07-24 Übertragungsleitung für tragbares elektronisches Gerät Active EP2690704B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12177616.5A EP2690704B1 (de) 2012-07-24 2012-07-24 Übertragungsleitung für tragbares elektronisches Gerät
CA2820155A CA2820155C (en) 2012-07-24 2013-07-05 Transmission line for mobile electronic device

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Application Number Priority Date Filing Date Title
EP12177616.5A EP2690704B1 (de) 2012-07-24 2012-07-24 Übertragungsleitung für tragbares elektronisches Gerät

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EP2690704A1 EP2690704A1 (de) 2014-01-29
EP2690704B1 true EP2690704B1 (de) 2016-09-28

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KR102151056B1 (ko) * 2014-04-09 2020-09-02 삼성전자주식회사 안테나 및 이를 구비한 전자 장치
US10461427B2 (en) 2015-04-08 2019-10-29 Samsung Electronics Co., Ltd. Antenna and electronic devices comprising the same

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US6266019B1 (en) * 2000-07-21 2001-07-24 Ericsson Inc. System for increasing antenna efficiency
US7889139B2 (en) * 2007-06-21 2011-02-15 Apple Inc. Handheld electronic device with cable grounding
US8102319B2 (en) * 2008-04-11 2012-01-24 Apple Inc. Hybrid antennas for electronic devices
KR20100041117A (ko) * 2008-10-13 2010-04-22 삼성전자주식회사 휴대용 무선 단말기의 내장형 안테나 장치
EP2424033B1 (de) * 2010-08-26 2013-01-23 Research In Motion Limited Tragbares drahtloses Kommunikationsgerät mit frequenzselektiver Erdungsschaltung

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CA2820155A1 (en) 2014-01-24
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