EP1923951A1 - Antennenbaugruppe für elektronisches Gerät - Google Patents

Antennenbaugruppe für elektronisches Gerät Download PDF

Info

Publication number
EP1923951A1
EP1923951A1 EP06425786A EP06425786A EP1923951A1 EP 1923951 A1 EP1923951 A1 EP 1923951A1 EP 06425786 A EP06425786 A EP 06425786A EP 06425786 A EP06425786 A EP 06425786A EP 1923951 A1 EP1923951 A1 EP 1923951A1
Authority
EP
European Patent Office
Prior art keywords
assembly
conductor
sub
antenna
circuit board
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.)
Ceased
Application number
EP06425786A
Other languages
English (en)
French (fr)
Inventor
Marco Maddaleno
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.)
Google Technology Holdings LLC
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Priority to EP06425786A priority Critical patent/EP1923951A1/de
Priority to CN200780042956.6A priority patent/CN101553954B/zh
Priority to PCT/US2007/081357 priority patent/WO2008063788A2/en
Publication of EP1923951A1 publication Critical patent/EP1923951A1/de
Priority to US12/463,603 priority patent/US8193993B2/en
Ceased legal-status Critical Current

Links

Images

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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Definitions

  • the present disclosure relates generally to electronic devices and more specifically to antenna sub-assemblies for electronic device and combinations thereof.
  • Portable electronic devices having radio reception or radio communication capabilities typically include one or more antenna sub-assemblies. Examples of such devices include, but are not limited to, mobile phones, pagers, radio sets, Personal Digital Assistant (PDA) and gaming devices capable of radio communications, satellite navigation devices and television receivers.
  • PDA Personal Digital Assistant
  • Antennas subassemblies suitable for these portable device applications include, but are not limited to, Folded Inverted Conformal Antenna (FICA) sub-assemblies, Planar Inverted-F Antenna (PIFA) sub-assemblies, an Inverted-F Antenna (IFA) sub-assemblies, a Folded-J Antenna (FJA) sub-assemblies, a monopole antenna sub-assemblies, and a loop antenna sub-assemblies.
  • FICA Folded Inverted Conformal Antenna
  • PIFA Planar Inverted-F Antenna
  • IFA Inverted-F Antenna
  • FJA Folded-J Antenna
  • the size of the antenna sub-assembly in portable electronic device constrains the overall size of the device.
  • a FJA sub-assembly used in a candy bar mobile phone and a clam shell mobile phone requires around 13 millimeters (mm) of ground-keep-out area.
  • a FICA sub-assembly for some cellular mobile phone applications requires two elongated U-shaped conductors, around 15-20 mm long, depending on the operating frequency.
  • some FICA sub-assemblies require clearance distance from certain metallic components, for example, the battery and keypad, to avoid interference. It is challenging to reduce antenna size without sacrificing antenna performance.
  • the antenna sub-assembly includes at least one conductor and a feed leg.
  • the at least one conductor has a first portion along a first side of a surface.
  • the surface corresponds to a printed circuit board.
  • the at least one conductor also includes a second portion connected to the first portion.
  • the second portion is along an edge of the surface.
  • the at least one conductor has a third portion connected to the second portion.
  • the third portion is along a second side of the surface.
  • the at least one conductor is coupled to the feed leg of the antenna sub-assembly.
  • the device includes a circuit board and an antenna sub-assembly.
  • the circuit board has a first surface, a second surface, and at least one edge.
  • the second surface is substantially parallel to the first surface and the at least one edge extends between the first and second surfaces.
  • the antenna sub-assembly, coupled to the circuit board, includes at least one conductor.
  • the at least one conductor has a first portion along the first surface and a second portion connected to the first portion.
  • the second portion is along the at least one edge.
  • the at least one conductor also has a third portion connected to the second portion.
  • the third portion is along the second surface.
  • the FICA sub-assembly includes at least one conductor and a feed leg.
  • the at least one conductor includes a first portion along a first side of a surface.
  • the surface corresponds to a circuit board that provides circuitry for the electronic device.
  • the at least one conductor has a second portion.
  • the second portion is connected to the first portion.
  • the second portion is along an edge of the surface and is substantially perpendicular to the first portion.
  • the at least one conductor also has a third portion connected to the second portion.
  • the third portion is along a second side of the surface, and is substantially parallel to the first portion.
  • the feed leg of the FICA sub-assembly is coupled to the at least one conductor. The feed leg is used to activate the FICA sub-assembly.
  • FIG. 1 illustrates a portable electronic device 100 embodied as a candy bar mobile phone.
  • the electronic device 100 may be embodied in a housing having a sliding element, or a clamshell housing, or a housing having a rotating element.
  • portable electronic devices include, but are not limited to, mobile cellular or satellite phones, pagers, radio communication devices, including Personal Digital Assistant (PDA) and gaming devices, satellite-based navigation devices and media signal receiving devices, for example, devices having an FM or XM radio or DVB-H receiver.
  • PDA Personal Digital Assistant
  • the electronic device 100 includes a housing 102 that envelops other components of the electronic device 100 such as an antenna sub-assembly, a battery and a circuitry, for example, a radio receiver or transmitter, not shown but well known to those of ordinary skill in the art.
  • a housing 102 that envelops other components of the electronic device 100 such as an antenna sub-assembly, a battery and a circuitry, for example, a radio receiver or transmitter, not shown but well known to those of ordinary skill in the art.
  • FIG. 2 illustrates a partial view of an electronic device 100 including a circuit board 202, an antenna sub-assembly 204, a battery 206, and a support 208.
  • the circuit board 202 has two surfaces on opposite sides, a first surface 210 and a second surface 212.
  • the first surface 210 is a top surface of the circuit board 202 and the second surface 212 is the bottom surface of the circuit board 202, but the first surface could be bottom and the second could be the top.
  • the second surface 212 is substantially parallel to the first surface 210.
  • the circuit board 202 has an edge 214 associated with the first surface 210 and the second surface 212.
  • the edge 214 extends between the first and second opposite sides of surfaces of the circuit board.
  • the edge 214 defines the perimeter of the circuit board 202 comprising opposite ends and opposite sides.
  • the antenna sub-assembly 204 is disposed proximate an end of the circuit board.
  • the circuit board 202 provides circuitry for the electronic device and supports a plurality of components including radio circuitry 104.
  • the radio circuitry may include, but is not limited to, a receiver and/or transmitter used for voice and/or data communications or for receiving satellite navigation signals.
  • the circuit board typically includes other circuitry, for example, a controller 106 in the form of a DSP and/or a processor, memory, user interface circuits and devices some of which are not illustrated.
  • the particular circuits and other elements of the circuit board are generally dependent on the type of portable electronic device with which the circuit board is associated, as is known generally by those of ordinary skill in the art.
  • the electronic device 100 includes the antenna sub-assembly 204.
  • the antenna sub-assembly 204 include, but are not limited to, a Folded Inverted Conformal Antenna (FICA) sub-assembly, a Planar inverted-F Antenna (PIFA) sub-assembly, an Inverted-F Antenna (IFA) sub-assembly, a Folded-J Antenna (FJA) sub-assembly, a monopole antenna sub-assembly, and a loop antenna sub-assembly.
  • FICA Folded Inverted Conformal Antenna
  • PIFA Planar inverted-F Antenna
  • IFA Inverted-F Antenna
  • FJA Folded-J Antenna
  • the antenna sub-assembly 204 includes at least one conductor and a feed leg (not shown in FIG. 2).
  • the at least one conductor includes a first portion 216, a second portion 218, and a third portion 220.
  • the first portion 216 is along a first side of the surface.
  • the first portion 216 has a serpentine pattern.
  • the first portion 216 is disposed along the top surface of the circuit board 202.
  • the first portion 216 of the antenna is also separated from the circuit board 202 by a distance, although a portion of the antenna may be electrically coupled to the circuit board as discussed further below.
  • the first portion 216 is connected to the second portion 218.
  • the second portion 218 extends along the edge between the first and second surfaces of the circuit board.
  • the second portion of the antenna is spaced apart from the edge of the circuit board or at least does not contact a conductive portion of the circuit board.
  • the second portion 218 of the antenna includes portions extending from opposite ends of the first portion 216 of the antenna.
  • the second portions 218 are also spaced apart from the edge 214 of the circuit board.
  • the second portion 218 of the antenna is connected to the third portion 220.
  • the third portion 220 is disposed along a second side of the circuit board, opposite the first side of the circuit board on which the first portion 216 of the antenna is located.
  • the third portion 220 includes corresponding portions extending from the corresponding second portion 218.
  • the third portions 220 also have a serpentine shape, which increases the electrical length thereof.
  • the third portion 220 is along the bottom surface of the circuit board 202.
  • the second portions 218 are substantially perpendicular to the first portion 216.
  • the third portions 220 of the antenna are substantially parallel to the first portion 216 thereof.
  • the antenna sub-assembly 204 reduces the space required by wrapping the at least one conductor about a portion of the circuit board.
  • the first portion 216 is shown to be substantially parallel to the first surface 210
  • the second portion 218 is shown to be along the at least one edge 214
  • the third portion 220 is shown to be substantially parallel to the second surface 212.
  • the at least one conductor has a slot.
  • the at least one conductor is shown to have a single slot 226.
  • the at least one conductor can have multiple slots.
  • the slot 226 extends through a substantial portion of the at least one conductor, for example, through one or more of the first, second and third portions of the at least one conductor, as discussed further below in conjunction with FIGS. 5 and 6.
  • the width of the slot is less than 5 millimeters (mm).
  • the slot has a constant width, though it may have a variable width in other embodiments.
  • the circuit board 202 includes multiple layers. Typically, a ground surface 302 is included as a single layer from amongst the plurality of layers of the circuit board 202. In FIG. 3, the ground surface 302 is planar, but in other embodiments it may have a non-planar configuration. In yet another embodiment, the ground surface 302 includes several connected layers of the plurality of layers of the circuit board 202. In one embodiment, the antenna is grounded to the ground surface 302. In FIG. 3, a ground leg 224 electrically couples the at least one conductor, and particularly the first portion 216 thereof, to the ground surface 302. in other embodiments, other portions of the antenna may be coupled to the ground surface 302.
  • FIG. 3 illustrates a sectional side-view of the electronic device 100 having a ground surface 302, a first dielectric 304, a second dielectric 306, and other components shown and described in FIG. 2.
  • the dielectrics generally insulate the antenna from conductive elements, and in some embodiments, the dielectrics provide structural support.
  • the first dielectric 304 insulates the first portion 216 of the antenna from the circuit board.
  • the second dielectric 306 insulates the second portion 218 of the antenna.
  • the shapes of the first and second dielectrics are dependent generally on the shapes of the corresponding first and second portions of the antenna and the proximity of other elements from which the antenna portions are insulated.
  • the shape or configuration of the dielectric may be dictated by the support requirement.
  • the electronic device 100 includes a battery 206 coupled to the circuit board 202.
  • the battery 206 provides electric power for the functioning of the electronic device 100.
  • the battery 206 is supported by a support member on the circuit board, for example, support 208 in FIGS. 2 and 3.
  • the antenna sub-assembly 204 is typically separated from the battery 206 and circuit board by a finite distance to reduce interference.
  • the first portion 216 of the antenna is separated from the first surface 210 by a second finite distance
  • the second portion 218 is separated from the at least one edge 214 by a third finite distance
  • the third portion 220 is separated from the second surface 212 by a fourth finite distance.
  • the antenna sub-assembly 204 is also separated from the battery 206.
  • An antenna feed leg electrically connects the at least one conductor to the circuit board.
  • the feed leg is used to activate or drive the antenna sub-assembly 204.
  • one or more feed legs 224 connect the first portion 216 of the antenna to a conductor on the circuit board.
  • the antenna sub-assembly 204 also includes a ground leg, not shown in FIG. 2. The ground leg is coupled to the at least one conductor and provides a conductive path for grounding.
  • FIG. 4 illustrates the locations of the feed leg 222 and the ground leg 224.
  • the ground leg 224 is shown to be connected to the ground surface 302.
  • the feed leg 222 and the ground leg 224 are located symmetrically with respect to the first portion 216.
  • the feed and ground legs are located asymmetrically with respect to the first portion 216.
  • the distance between the feed and ground legs may be adjusted to match impedance. As the feed leg and the ground leg are brought closer, the bandwidth of the operating band of the antenna sub-assembly 204 decreases. Increasing the distance between the feed leg 222 and the ground leg 224 increases the impedance of the antenna sub-assembly 204.
  • FIG. 5 illustrates a partial top-view of the antenna sub-assembly 204.
  • the sectional top-view of the electronic device 100 shows, the circuit board 202, the first portion 216, the third portion 220, the slot 226, and an plane of symmetry 502 of the at least one conductor that divides the at least one conductor into two substantially symmetrical parts.
  • the illustrated antenna sub-assembly is capable of operating in a common electromagnetic mode, a differential electromagnetic mode, and a slot electromagnetic mode.
  • the electric field vectors extend between the at least one conductor and the ground surface. In this mode, the electric field is substantially symmetric about the plane of symmetry 502, illustrated in FIG. 5.
  • the electric field vectors between different parts of the at least one conductor and the ground surface point in the same direction at any given instance of time. The same direction can be either toward the ground surface 302 or away from the ground surface.
  • the electric field vectors corresponding to the current flowing in the ground surface are oriented parallel to the plane of symmetry.
  • the electric field is substantially anti-symmetric about the plane of symmetry 502, illustrated in FIG. 5.
  • the electric field points toward the ground surface 302 on a first side of the plane of symmetry 502, and towards the at least one conductor on the second side of the plane of symmetry 502.
  • the at least one conductor may not exhibit bilateral symmetry.
  • the electric field points in one direction. For example, towards the at least one conductor from the ground surface 302.
  • the electric field points in the opposite direction. For example, towards the ground surface 302 from the at least one conductor.
  • the antenna sub-assembly 204 as illustrated in FIG. 5, has the first point and the second point coincident with or close to the points at which the plane of symmetry 502 crosses the first portion 216 and the third portion 220.
  • a strong electric field crosses the slot 226, and the electric field is substantially symmetric about the plane of symmetry 502.
  • the common electromagnetic mode, the differential electromagnetic mode, and the slot electromagnetic mode correspond to three frequency bands that can support communication at different communication channels.
  • Each of the communication channels may use a different communication protocol. Examples of the protocol include Global System for Mobile Communications (GSM)-900, GSM-1800, GSM-1900, Advanced Mobile Phone System (AMPS), Universal Mobile Telecommunications System (UMTS) and the like.
  • GSM Global System for Mobile Communications
  • AMPS Advanced Mobile Phone System
  • UMTS Universal Mobile Telecommunications System
  • transmitters and receivers of the electronic device 100 operate at frequencies in bands associated with each of the three modes.
  • the slot 226 runs through the length of the at least one conductor. In one embodiment, the slot 226 follows a path characterized by a length that exceeds the length of the at least one conductor. In Fig. 5, the slot 226 corresponding to the first portion 216 is shown to be taking six right angle turns along the length of the first portion 216.
  • FIG. 6 illustrates a sectional bottom-view of the electronic device 100 in accordance with an embodiment.
  • the sectional bottom-view of the electronic device 100 shows, the circuit board 202, the first portion 216, the third portion 220, and the slot 226 corresponding to the third portion 220.
  • the least one slot 226 corresponding to the third portion 220 is shown to be taking six right angle turns along the length of the third portion 220.
  • FIG. 7 illustrates an experimental first return loss plot 700 for the antenna sub-assembly 204, in accordance with one implementation.
  • Return-loss is the power returned from an antenna sub-assembly. Typically, for a good antenna sub-assembly, the return loss is reduced.
  • the X-axis shows the variation of the frequency (in Gigahertz (GHz)) and Y-axis shows the variation of power (in Decibel (Db)).
  • the first return loss plot shows the return loss of the antenna sub-assembly, determined over a frequency range of 800 Megahertz (MHz) to 1000 MHz.
  • the first return loss plot shows a first operating band 702, extending from 878 MHz to 958 MHz, having a resonance frequency, centered approximately at 940 MHz.
  • This first operating band 702 corresponds to the common electromagnetic mode.
  • the first operating band 702 can, for example be used for GSM in the 900 MHz band.
  • FIG. 8 illustrates an experimental second return loss plot 800 for the antenna sub-assembly 204, in accordance with an embodiment.
  • the X-axis shows the variation of the frequency (in GHz) and Y-axis shows the variation of power (in Db).
  • the second return loss plot shows the return loss of the antenna sub-assembly, determined over a frequency range of 1600 MHz to 2300 MHz.
  • the experimental second return loss plot 800 shows a second operating band 802, extending from 1690 MHz to 2150 MHz, having two resonance frequencies, centered approximately at 1800 MHz and 2100 MHz.
  • the resonance frequency, centered approximately at 1800 MHz corresponds to the differential electromagnetic mode.
  • the resonance frequency, centered approximately at 2100 MHz corresponds to the slot electromagnetic mode.
  • the second operating band can be used for GSM, and UMTS communication. Hence, a multi-band performance is observed from the antenna sub-assembly 204, as shown in FIG. 7 and FIG. 8.
  • Various embodiments of the disclosure provide a compact antenna sub-assembly for an electronic device.
  • the antenna sub-assembly reduces the space required by wrapping the at least one conductor around the circuit board of the electronic device. Moreover, the performance of the antenna sub-assembly remains approximately same. This enables the electronic device to have a compact size as well.
EP06425786A 2006-11-20 2006-11-20 Antennenbaugruppe für elektronisches Gerät Ceased EP1923951A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06425786A EP1923951A1 (de) 2006-11-20 2006-11-20 Antennenbaugruppe für elektronisches Gerät
CN200780042956.6A CN101553954B (zh) 2006-11-20 2007-10-15 用于电子设备的天线子部件
PCT/US2007/081357 WO2008063788A2 (en) 2006-11-20 2007-10-15 Antenna sub-assembly for electronic device
US12/463,603 US8193993B2 (en) 2006-11-20 2009-05-11 Antenna sub-assembly for electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425786A EP1923951A1 (de) 2006-11-20 2006-11-20 Antennenbaugruppe für elektronisches Gerät

Publications (1)

Publication Number Publication Date
EP1923951A1 true EP1923951A1 (de) 2008-05-21

Family

ID=37709781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06425786A Ceased EP1923951A1 (de) 2006-11-20 2006-11-20 Antennenbaugruppe für elektronisches Gerät

Country Status (3)

Country Link
EP (1) EP1923951A1 (de)
CN (1) CN101553954B (de)
WO (1) WO2008063788A2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022698A1 (en) * 2009-08-20 2011-02-24 Qualcomm Incorporated Compact multi-band planar inverted f antenna
CN102804487A (zh) * 2009-06-30 2012-11-28 诺基亚公司 包括环状天线的用于无线通信的装置
WO2016130678A1 (en) * 2015-02-11 2016-08-18 Google Inc. Multi-band antenna with a battery resonator
EP3062387A4 (de) * 2013-12-31 2017-01-11 Huawei Device Co., Ltd. Schleifenantenne und mobiles endgerät

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7642964B2 (en) 2006-10-27 2010-01-05 Motorola, Inc. Low profile internal antenna
US8193993B2 (en) 2006-11-20 2012-06-05 Motorola Mobility, Inc. Antenna sub-assembly for electronic device
TWI454068B (zh) 2010-02-09 2014-09-21 Arcadyan Technology Corp 無線網路接收器
CN102158243B (zh) * 2010-02-12 2015-01-21 智易科技股份有限公司 无线网络接收器
CN101997165B (zh) * 2010-10-27 2014-07-30 惠州Tcl移动通信有限公司 一种封闭型多频段天线及其无线通讯装置
CN104218329A (zh) * 2014-09-05 2014-12-17 昆山联滔电子有限公司 组合天线

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625212A (en) 1983-03-19 1986-11-25 Nec Corporation Double loop antenna for use in connection to a miniature radio receiver
US4862181A (en) 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
WO1989010012A1 (en) * 1988-04-11 1989-10-19 Motorola, Inc. Balanced low profile hybrid antenna
US4955044A (en) 1988-12-02 1990-09-04 Amstore Corporation Lighted display case
US4955084A (en) * 1988-03-04 1990-09-04 Nec Corporation Paging receiver with metallic display frame structure increasing antenna gain
US5300937A (en) * 1989-10-02 1994-04-05 Motorola, Inc. Loop antenna
JPH06244755A (ja) * 1993-02-12 1994-09-02 Fujitsu Ltd 携帯用の無線装置
US5940041A (en) 1993-03-29 1999-08-17 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
GB2366916A (en) 2000-07-19 2002-03-20 Matsushita Electric Ind Co Ltd Folded loop antenna for portable radio device
US20040090372A1 (en) * 2002-11-08 2004-05-13 Nallo Carlo Di Wireless communication device having multiband antenna

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028990A1 (fr) * 1997-12-01 1999-06-10 Kabushiki Kaisha Toshiba Antenne de type f inversee pour frequences multiples
EP1310014B1 (de) * 2000-08-08 2007-05-30 Koninklijke Philips Electronics N.V. Drahtloses funkgerät
KR100425236B1 (ko) * 2001-04-12 2004-03-30 미래테크 주식회사 이동통신용 광대역 안테나
TWI259607B (en) * 2005-04-29 2006-08-01 Benq Corp Antenna device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625212A (en) 1983-03-19 1986-11-25 Nec Corporation Double loop antenna for use in connection to a miniature radio receiver
US4862181A (en) 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
US4955084A (en) * 1988-03-04 1990-09-04 Nec Corporation Paging receiver with metallic display frame structure increasing antenna gain
WO1989010012A1 (en) * 1988-04-11 1989-10-19 Motorola, Inc. Balanced low profile hybrid antenna
US4955044A (en) 1988-12-02 1990-09-04 Amstore Corporation Lighted display case
US5300937A (en) * 1989-10-02 1994-04-05 Motorola, Inc. Loop antenna
JPH06244755A (ja) * 1993-02-12 1994-09-02 Fujitsu Ltd 携帯用の無線装置
US5940041A (en) 1993-03-29 1999-08-17 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
GB2366916A (en) 2000-07-19 2002-03-20 Matsushita Electric Ind Co Ltd Folded loop antenna for portable radio device
US20040090372A1 (en) * 2002-11-08 2004-05-13 Nallo Carlo Di Wireless communication device having multiband antenna

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102804487A (zh) * 2009-06-30 2012-11-28 诺基亚公司 包括环状天线的用于无线通信的装置
CN102804487B (zh) * 2009-06-30 2015-09-09 诺基亚公司 包括环状天线的用于无线通信的装置
WO2011022698A1 (en) * 2009-08-20 2011-02-24 Qualcomm Incorporated Compact multi-band planar inverted f antenna
CN102484315A (zh) * 2009-08-20 2012-05-30 高通股份有限公司 小型多频带平面倒f型天线
US9136594B2 (en) 2009-08-20 2015-09-15 Qualcomm Incorporated Compact multi-band planar inverted F antenna
EP3062387A4 (de) * 2013-12-31 2017-01-11 Huawei Device Co., Ltd. Schleifenantenne und mobiles endgerät
WO2016130678A1 (en) * 2015-02-11 2016-08-18 Google Inc. Multi-band antenna with a battery resonator
US9819069B2 (en) 2015-02-11 2017-11-14 Google Inc. Multi-band antenna with a battery resonator

Also Published As

Publication number Publication date
WO2008063788A3 (en) 2008-07-17
CN101553954B (zh) 2013-09-25
WO2008063788A2 (en) 2008-05-29
CN101553954A (zh) 2009-10-07

Similar Documents

Publication Publication Date Title
US6417816B2 (en) Dual band bowtie/meander antenna
EP1923951A1 (de) Antennenbaugruppe für elektronisches Gerät
US8193993B2 (en) Antenna sub-assembly for electronic device
US6380903B1 (en) Antenna systems including internal planar inverted-F antennas coupled with retractable antennas and wireless communicators incorporating same
US6650294B2 (en) Compact broadband antenna
EP2448065B1 (de) Mobiles kommunikationsendgerät mit rahmen und antenne
AU750257C (en) Multiple frequency band antenna
US6218992B1 (en) Compact, broadband inverted-F antennas with conductive elements and wireless communicators incorporating same
US6424300B1 (en) Notch antennas and wireless communicators incorporating same
US6225951B1 (en) Antenna systems having capacitively coupled internal and retractable antennas and wireless communicators incorporating same
WO2001008260A1 (en) Flat dual frequency band antennas for wireless communicators
JPWO2004109857A1 (ja) アンテナとそれを用いた電子機器
GB2409582A (en) Dual ground plane multi-band antenna for mobile communication terminals
JP2007510362A (ja) 浮遊非励振素子を含むマルチバンド平板逆ｆアンテナと、それを組み込んだ無線端末
EP2381529B1 (de) Kommunikationsstrukturen mit Antennen mit separaten Antennenzweigen, die gekoppelt werden, um Leiter zu speisen und erden
WO2007017465A1 (en) Multi-band antenna device for radio communication terminal and radio communication terminal comprising the multi-band antenna device
KR20110122849A (ko) 안테나 장치, 인쇄 회로 보드, 휴대용 전자 장치 및 변환 키트
CN101779332A (zh) 天线装置及便携式无线设备
US6563466B2 (en) Multi-frequency band inverted-F antennas with coupled branches and wireless communicators incorporating same
KR20070101168A (ko) 안테나 장치 및 이를 이용한 멀티 밴드 타입 무선 통신기기
US7642966B2 (en) Carrier and device
US20020123312A1 (en) Antenna systems including internal planar inverted-F Antenna coupled with external radiating element and wireless communicators incorporating same
US9419327B2 (en) System for radiating radio frequency signals
JPH09232854A (ja) 移動無線機用小型平面アンテナ装置
US6392604B1 (en) Antenna device comprising sliding connector means

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20081028

17Q First examination report despatched

Effective date: 20081201

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MOTOROLA MOBILITY, INC.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MOTOROLA MOBILITY LLC

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20180602

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230524