EP2621015B1 - Mobile drahtlose Kommunikationsvorrichtung mit Mehrbandantenne und zugehörige Verfahren - Google Patents

Mobile drahtlose Kommunikationsvorrichtung mit Mehrbandantenne und zugehörige Verfahren Download PDF

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Publication number
EP2621015B1
EP2621015B1 EP12152968.9A EP12152968A EP2621015B1 EP 2621015 B1 EP2621015 B1 EP 2621015B1 EP 12152968 A EP12152968 A EP 12152968A EP 2621015 B1 EP2621015 B1 EP 2621015B1
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EP
European Patent Office
Prior art keywords
radiator
branch
wireless communications
mobile wireless
communications device
Prior art date
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EP12152968.9A
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English (en)
French (fr)
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EP2621015A1 (de
Inventor
Andreas Handro
Christopher Wehrmann
Michael Kuhn
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BlackBerry Ltd
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BlackBerry Ltd
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Publication date
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Priority to EP12152968.9A priority Critical patent/EP2621015B1/de
Priority to CA2803642A priority patent/CA2803642C/en
Publication of EP2621015A1 publication Critical patent/EP2621015A1/de
Application granted granted Critical
Publication of EP2621015B1 publication Critical patent/EP2621015B1/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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • 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
    • 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

Definitions

  • the present invention relates to the field of communications, and, more particularly, to wireless communications and related methods.
  • the typical cellular device may include several antennas, for example, a cellular antenna, a global positioning system antenna, and a WiFi IEEE 802.11g antenna. These antennas may comprise external antennas and internal antennas.
  • internal antennas allow cellular devices to have a smaller footprint. Moreover, they are also preferred over external antennas for mechanical and ergonomic reasons. Internal antennas are also protected by the cellular device's housing and therefore tend to be more durable than external antennas. External antennas may be cumbersome and may make the cellular device difficult to use, particularly in limited-space environments. Yet, one potential drawback of typical internal antennas is that they are in relatively close proximity to the user's head when the cellular device is in use, thereby increasing the specific absorption rate (SAR). Yet more, hearing aid compatibility (HAC) may also be affected negatively. Also, other components within the cellular device may cause interference with or may be interfered by the internal antenna.
  • SAR specific absorption rate
  • HAC hearing aid compatibility
  • United States Publication No. 2009/224991 discloses an antenna comprising an IMD element, and one or more parasitic and active tuning elements.
  • European Patent Publication No. 1304765 discloses a multiband antenna applicable as an internal antenna in small mobile terminals especially.
  • a mobile wireless communications device may include a housing, at least one wireless transceiver carried by the housing, and a multiple-band antenna carried by the housing and coupled to the at least one wireless transceiver.
  • Example mobile wireless communications devices may include portable or personal media players (e.g., music or MP3 players, video players, etc.), remote controls (e.g., television or stereo remotes, etc.), portable gaming devices, portable or mobile telephones, smartphones, tablet computers, etc.
  • the multiple-band antenna may include a first radiator comprising a radiator element and a parasitic element adjacent thereto, the parasitic element being selectively switchable between floating and grounded states, and a second radiator insulated from the first radiator.
  • the multiple-band antenna may comprise a dielectric substrate supporting the first and second radiators.
  • the dielectric substrate may have a non-planar shape, for example.
  • the dielectric substrate may be carried by a bottom of the housing, and the first and second radiators may be carried by respective opposing first and second sides of the dielectric substrate.
  • the second radiator may comprise first and second branches coupled together with a T-shaped slot therebetween.
  • the second radiator may comprise a feed connection on the first branch, and a reference voltage connection on the second branch.
  • the T-shaped slot may open outwardly and between the first and second branches.
  • the radiator element may comprise a first branch extending alongside the parasitic element, and a second branch extending outwardly from the first branch.
  • the second branch may have a bend in a medial portion thereof.
  • the radiator element may comprise a feed connection on the first branch.
  • the parasitic element may have a rectangular shape.
  • the method may comprise forming a multiple-band antenna to comprise a first radiator comprising a radiator element and a parasitic element adjacent thereto, the parasitic element being selectively switchable between floating and grounded states, and a second radiator insulated from the first radiator.
  • the method may also include coupling at least one wireless transceiver to be carried by a housing, and coupling the multiple-band antenna to be carried by the housing and to the at least one wireless transceiver.
  • a mobile wireless communications device 30 illustratively includes a housing 96, a wireless transceiver 31 carried by the housing, and a multiple-band antenna 32 carried by the housing and coupled to the wireless transceiver.
  • the multiple-band antenna 32 illustratively includes a first radiator 33 comprising a radiator element 36, and a parasitic element 35 adjacent thereto.
  • the first radiator 33 may comprise a low band radiator operating at a frequency band of 824-960 MHz.
  • the parasitic element 35 is aligned substantially parallel to the radiator element 36.
  • the parasitic element 35 may be selectively switchable between floating and grounded states, i.e. it is coupled to a plurality of differing impedances.
  • the parasitic element 35 is switched to change the capacitive load of the radiator element 36 and to control the resonance frequency of the same, thereby improving antenna performance.
  • the parasitic element 35 illustratively has a rectangle shape, but may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the radiator element 36 illustratively includes a first branch 43 extending alongside the parasitic element 35, and a second branch 44 extending outwardly from the first branch.
  • the radiator element 36 illustratively includes a feed connection 47 on the first branch 43.
  • the portion of the first branch 43 proximal to the feed connection 47 illustratively has a rectangle shape, but may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the radiator element 36 illustratively includes a medial portion coupling the first branch 43 and the second branch 44.
  • the medial portion illustratively includes L-shaped slot 39 on an inner side thereof, and a protruding portion 49 on an outer side thereof.
  • the L-shaped slot 39 may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the protruding portion 49 is substantially rectangle shaped and forms a portion of a speaker receiving recess, but may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the second branch 44 illustratively includes a bend 45 in a medial portion thereof.
  • the distal end of the second branch 44 is substantially rectangle shaped, but may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the multiple-band antenna 32 illustratively includes a second radiator 34 insulated from the first radiator 33. More specifically, the multiple-band antenna 32 illustratively includes a dielectric substrate 37 supporting the first and second radiators 33-34.
  • the second radiator 34 may comprise a high band radiator operating at a frequency band of 1710-2170 MHz.
  • the dielectric substrate 37 illustratively includes a non-planar shape, which provides firm direct support to the multiple-band antenna 32.
  • the substrate 37 illustratively includes a ridge 95 extending across the bottom of the mobile wireless communications device 30, the ridge indenting the first and second radiators 33-34.
  • the dielectric substrate 37 is illustratively carried by a bottom of the housing 96, and the first and second radiators 33-34 are carried by respective opposing first and second sides of the dielectric substrate.
  • the second radiator 34 illustratively includes first and second branches 40-41 coupled together with a medial portion therebetween.
  • the medial portion illustratively includes a T-shaped slot 42 on an inner side thereon.
  • the T-shaped slot 42 may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the medial portion illustratively includes, on an outer side thereof, a curved portion 79 and a protruding portion 69.
  • the protruding portion 69 is illustratively substantially rectangle shaped, but may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the second radiator 34 illustratively includes a feed connection 53 on the first branch 40, and a reference voltage connection 54, for example, a ground connection, on the second branch 41.
  • the T-shaped slot 42 may open outwardly and between the first and second branches 40-41.
  • the multiple-band antenna 32 illustratively includes a tuning member 59 ( FIG. 2 ) positioned above the second radiator 34.
  • the tuning member 59 is illustratively rectangle shaped, but may comprise different shapes in other embodiments, such a triangle shape, a trapezoid shape, a curved shape, etc.
  • the mobile wireless communications device 30 illustratively includes a speaker 50 ( FIG. 3 ), and a speaker receiving recess partially defined by the protruding portions 49, 69 of the first and second radiators 33-34.
  • the second radiator 34 is electrically insulated from the first radiator 33 and the parasitic element 35 is appropriately switched to enhance the isolation therebetween.
  • the first radiator 33 is terminated with an isolation optimizing impedance, both the parasitic element 35 and the radiator element 36.
  • the two radiator approach with an active low band antenna and a passive high band antenna may give enough design freedom to achieve design goals (low and high band can be tuned independently, and coupling between low and high band can be controlled).
  • the mobile wireless communications device 30 illustratively includes a circuit board 51 carrying the multiple-band antenna 32, and a speaker metal support can 91 for supporting the speaker 50.
  • the mobile wireless communications device 30 illustratively includes a plurality of electrical contacts 52a-52c, 92a-92b carried by the circuit board 51 and for being coupled to the first and second radiators 33-34.
  • electrical contact 52b is coupled to the parasitic element 35
  • electrical contact 52c is connected to the radiator element 36
  • electrical contact 92a is connected to the feed connection 53
  • electrical contact 92b is connected to the reference voltage connection 54.
  • the mobile wireless communications device 30 illustratively includes a transmit-receive path 60.
  • the transmit-receive path 60 illustratively includes a processor 65, a power amplifier 64 coupled downstream therefrom, an antenna switch block 62 coupled downstream from the power amplifier, and an antenna tuner block 61 coupled between the first radiator 33 and the processor.
  • the transmit-receive path 60 illustratively includes a diplexer block 63 coupled to the power amplifier 64, the processor 65, and the antenna switch block 62.
  • the transmit-receive path 60 illustratively includes a pair of GSM receiver blocks (900 MHz, and 1900 MHz) 66-67 coupled between the antenna switch block 62 and the processor 65.
  • the mobile wireless communications device 30 illustratively includes a second radiator feed path 57 including an antenna feed connection 53, a matching network (impedance) block 55 coupled downstream therefrom, and an electrostatic discharge (ESD) protection block 56 coupled downstream therefrom and configured to provide an RF input.
  • the second radiator feed path 57 illustratively includes a switch connector block 58 coupled between the ESD protection block 56 (inductor 302 ) and the matching network block 55.
  • the switch connector block 58 is for use during production testing methods.
  • the matching network (impedance) block 55 illustratively includes an inductor 300, and a capacitor 301 coupled in parallel.
  • the second radiator feed path 57 illustratively includes a resistor 309 coupling the matching network block 55 and the switch connector block 58, and a capacitor 340 coupling the switch connector block 58 to the ESD protection block 56.
  • the mobile wireless communications device 30 illustratively includes a first radiator feed path 89 including an antenna feed connection 47, a matching network (impedance) block 71 (capacitors 306, 332, resistors 307, 333, and inductor 334 ) coupled downstream therefrom, and an ESD protection block 72 (capacitors 304-305, 331, resistor 303, and inductor 330 ) coupled downstream therefrom and providing an RF input.
  • a matching network (impedance) block 71 capacitors 306, 332, resistors 307, 333, and inductor 334
  • ESD protection block 72 capacitortors 304-305, 331, resistor 303, and inductor 330
  • the first radiator feed path 89 illustratively includes a parasitic path comprising a parasitic feed 48, an ESD protection block 73 (capacitors 311, 345, resistor 310, and inductor 344 ) coupled downstream therefrom, a switch block 78 coupled thereto and configured to selective coupled the parasitic element connection 48 to a pair of impedances 75-76 (capacitors 347, 343, resistor 342, and capacitors 340-341 ).
  • the switch block 78 is also coupled to the processor 65 and includes a single pole double throw switch 74, for example, capacitors 312, 314, 316 - 317 , and resistors 313, 315 ) .
  • Capacitors 320-321 are coupled between the processor 65 and the switch block 78.
  • the first radiator feed path 89 illustratively includes a switch connector block 77 coupled between the ESD protection block 72 and the matching network block 71 (capacitor 332, resistor 333, and inductor 334 ) .
  • the switch connector block 77 is for use during production testing methods.
  • FIGS. 10-11 illustrate example implementations of the schematic diagram of FIG. 9 . These are presented for illustrative and exemplary purposes only. Indeed, not all components from FIG. 9 are included in the specific implementations of FIGS. 10-11 , and some components have been altered slightly.
  • diagrams 100, 110 show first radiator 33 performance in a first switched parasitic state while diagrams 120, 130 show first radiator performance in a second switched parasitic state.
  • Data points 101-108 ( FIG. 12 ), 111-118 ( FIG. 13 ), 121-128 ( FIG. 14 ), and 131-138 ( FIG. 15 ) specify performance at operating frequencies of 824.20 MHz, 849.00 MHz, 869.00 MHz, 894.00 MHz, 880.00 MHz, 915.00 MHz, 925.00 MHz, and 960.00 MHz, respectively.
  • curve 110 illustrates performance of the parasitic switch state from FIG. 13 .
  • Diagram 250 shows first radiator 33 efficiency performance in first 252 and second 251 switched parasitic states.
  • diagrams 100 and 120 show the shift of the antenna resonance in the low band (frequency range 800-1000 MHz).
  • the active antenna was designed to extend the bandwidth in the low band area.
  • diagrams 140, 150, 230 illustrate coupling effects between the first and second radiators 33-34 in a first switched parasitic state while diagrams 170, 180, 220 show coupling effects between the first and second radiators in a second switched parasitic state.
  • Data points 141a - 146a , 141b-146b ( FIG. 17 ), 151-156 ( FIG. 18 ), 121-171a-176a, 171b-176b ( FIG. 20 ), and 181-186 ( FIG. 21 ) specify performance at operating frequencies of 824.00 MHz, 960 MHz, 1.71 GHz, 1.99 GHz, 2.11 GHz, and 2.17 GHz, respectively.
  • Diagram 230 includes curves 231-232, and diagram 220 includes curves 221-222.
  • the low band antenna also shows a 2nd resonance in the range of the high band antenna (second radiator 34 ) .
  • the high band and low band antennas 33-34 are close together.
  • the 2nd resonance of the low band antenna 33 will also interact with the 1st resonance of the high band antenna 34.
  • diagrams 140, 150, 230 the frequency range is extended, and the higher frequencies are shown.
  • the diagrams include the range (800 MHz-2300 MHz), and aid in understanding the control enabled with the active antenna radiator switching state for the isolation between our low band and high band antennas 33-34.
  • Diagram 140 shows return loss of both radiators for the switching state 1 (y-axis in dB, x-axis is frequency in MHz), and this figure shows the 1st and the 2nd resonances of the active antenna (low band radiator 33 ) .
  • the second resonance is overlapping with the resonance of the high band radiator 34 (antenna with T slot).
  • This 2nd resonance causes a coupling between both radiators with impact to antenna isolation.
  • Diagrams 150 and 230 show the coupling/isolation between both radiators, diagram 230 being another format (smith chart) of diagram 150.
  • the antenna isolation impacts the efficiency, HAC and SAR.
  • Diagrams 170, 180, 220 show the same situation for the switched state 2. It is visible that not only the first resonance is affected, but also the 2nd resonance is shifted. The isolation between both antennas is changed (compare FIGS. 18 and 21 ). Again, diagram 220 provides another Smith diagram format.
  • FIGS. 23-26 include diagrams 190, 195, which illustrate hearing aid compatibility (HAC) E-field results in first and second switched parasitic states.
  • HAC hearing aid compatibility
  • the reduced housing size and close proximity of the antenna and hearing aid components may cause self-interference issues.
  • HAC requirements for the GSM 1900 band are stricter than that for the GSM 850 band.
  • the HAC category M3 limits include a maximum electric field (E field) of 84.1 V/m and a maximum magnetic field (M field) of 0.25 A/m.
  • E field maximum electric field
  • M field maximum magnetic field
  • peak E-field measurements in V/m for the first switched parasitic state include: grid 1 75.4; grid 2 63.5; grid 3 65.4; grid 4 76.4; grid 5 9B.6; grid 6 98.3; grid 7 101.5; grid 8 111.0; and grid 9 107.3.
  • Peak E-field measurements in V/m for the second switched parasitic state include: grid 1 74.6; grid 2 59.9; grid 3 62.0; grid 4 76.0; grid 5 95.3; grid 6 94.7; grid 7 101.3; grid 8 109.1; and grid 9 103.8.
  • Diagrams 200, 205 illustrate hearing aid compatibility H-field in first and second switched parasitic states.
  • peak H-field measurements in A/m for the first switched parasitic state include: grid 1 0.271; grid 2 0.281; grid 3 0.270; grid 4 0.272; grid 5 0.278; grid 6 0.265; grid 7 0.322; grid 8 0.253; and grid 9 0.205.
  • Peak H-field measurements in V/m for the second switched parasitic state include: grid 1 0.223; grid 2 0.236; grid 3 0.231; grid 4 0.230; grid 5 0.235; grid 6 0.230; grid 7 0.272; grid 8 0.211; and grid 9 0.192.
  • the first and second resonances of the first radiator 33 are managed, thereby mitigating a near field effect for the hearing aid earpiece.
  • the HAC values are clearly reduced in the second switched parasitic state.
  • the isolation (2nd resonance low band radiator 33 and 1st resonance high band radiator 34 ) between bo6th antennas is controlled with the different switching states of our active low band antenna.
  • high isolation is necessary to have the best antenna efficiency (GSM 1800, GSM 1900 RX, W-CDMA Band 1,2,4).
  • GSM 1800, GSM 1900 RX, W-CDMA Band 1,2,4 This permits the multiple-band antenna 32 to realize this disclosed mechanical arrangement of the antennas being close together in a small volume.
  • GSM 1900 TX (transmit) the other switching state that gets less isolation can be used, which changes the field distribution on the PCB (printed wire board) and reduces HAC values.
  • the antenna efficiency is compromised in this case.
  • mobile wireless communications device 30 does not need an extra HAC reduction structure, as required in typical cellular devices (traditional HAC reduction structures are separate metalized structures (L-stub, for example) mounted close to antenna).
  • traditional HAC reduction structures are separate metalized structures (L-stub, for example) mounted close to antenna).
  • the design of the disclosed low band radiator 33 is made so that the 2nd resonance of the low band radiator is in the frequency range where we want to reduce HAC (GSM 1900 TX).
  • the device 1000 illustratively includes a housing 1200, a keyboard or keypad 1400 and an output device 1600.
  • the output device shown is a display 1600, which may comprise a full graphic liquid crystal display (LCD). Other types of output devices may alternatively be utilized.
  • a processing device 1800 is contained within the housing 1200 and is coupled between the keypad 1400 and the display 1600. The processing device 1800 controls the operation of the display 1600, as well as the overall operation of the mobile device 1000, in response to actuation of keys on the keypad 1400.
  • the housing 1200 may be elongated vertically, or may take on other sizes and shapes (including clamshell housing structures).
  • the keypad may include a mode selection key, or other hardware or software for switching between text entry and telephony entry.
  • FIG. 27 In addition to the processing device 1800, other parts of the mobile device 1000 are shown schematically in FIG. 27 . These include a communications subsystem 1001; a short-range communications subsystem 1020; the keypad 1400 and the display 1600, along with other input/output devices 1060, 1080, 1100 and 1120; as well as memory devices 1160, 1180 and various other device subsystems 1201.
  • the mobile device 1000 may comprise a two-way RF communications device having data and, optionally, voice communications capabilities.
  • the mobile device 1000 may have the capability to communicate with other computer systems via the Internet.
  • Operating system software executed by the processing device 1800 is stored in a persistent store, such as the flash memory 1160, but may be stored in other types of memory devices, such as a read only memory (ROM) or similar storage element.
  • system software, specific device applications, or parts thereof may be temporarily loaded into a volatile store, such as the random access memory (RAM) 1180.
  • Communications signals received by the mobile device may also be stored in the RAM 1180.
  • the processing device 1800 in addition to its operating system functions, enables execution of software applications 1300A-1300N on the device 1000.
  • a predetermined set of applications that control basic device operations, such as data and voice communications 1300A and 1300B, may be installed on the device 1000 during manufacture.
  • a personal information manager (PIM) application may be installed during manufacture.
  • the PIM may be capable of organizing and managing data items, such as e-mail, calendar events, voice mails, appointments, and task items.
  • the PIM application may also be capable of sending and receiving data items via a wireless network 1401.
  • the PIM data items may be seamlessly integrated, synchronized and updated via the wireless network 1401 with corresponding data items stored or associated with a host computer system.
  • the communications subsystem 1001 includes a receiver 1500, a transmitter 1520, and one or more antennas 1540 and 1560.
  • the communications subsystem 1001 also includes a processing module, such as a digital signal processor (DSP) 1580, and local oscillators (LOs) 1601.
  • DSP digital signal processor
  • LOs local oscillators
  • a mobile device 1000 may include a communications subsystem 1001 designed to operate with the MobitexTM, Data TACTM or General Packet Radio Service (GPRS) mobile data communications networks, and also designed to operate with any of a variety of voice communications networks, such as Advanced Mobile Phone System (AMPS), time division multiple access (TDMA), code division multiple access (CDMA), Wideband code division multiple access (W-CDMA), personal communications service (PCS), GSM (Global System for Mobile Communications), enhanced data rates for GSM evolution (EDGE), etc. Other types of data and voice networks, both separate and integrated, may also be utilized with the mobile device 1000.
  • the mobile device 1000 may also be compliant with other communications standards such as 3GSM, 3rd Generation Partnership Project (3GPP), Universal Mobile Telecommunications System (UMTS), 4G, etc.
  • Network access requirements vary depending upon the type of communication system. For example, in the Mobitex and DataTAC networks, mobile devices are registered on the network using a unique personal identification number or PIN associated with each device. In GPRS networks, however, network access is associated with a subscriber or user of a device. A GPRS device therefore typically involves use of a subscriber identity module, commonly referred to as a SIM card, in order to operate on a GPRS network.
  • SIM card subscriber identity module
  • the mobile device 1000 may send and receive communications signals over the communication network 1401.
  • Signals received from the communications network 1401 by the antenna 1540 are routed to the receiver 1500, which provides for signal amplification, frequency down conversion, filtering, channel selection, etc., and may also provide analog to digital conversion. Analog-to-digital conversion of the received signal allows the DSP 1580 to perform more complex communications functions, such as demodulation and decoding.
  • signals to be transmitted to the network 1401 are processed (e.g. modulated and encoded) by the DSP 1580 and are then provided to the transmitter 1520 for digital to analog conversion, frequency up conversion, filtering, amplification and transmission to the communication network 1401 (or networks) via the antenna 1560.
  • the DSP 1580 provides for control of the receiver 1500 and the transmitter 1520. For example, gains applied to communications signals in the receiver 1500 and transmitter 1520 may be adaptively controlled through automatic gain control algorithms implemented in the DSP 1580.
  • a received signal such as a text message or web page download
  • the communications subsystem 1001 is input to the processing device 1800.
  • the received signal is then further processed by the processing device 1800 for an output to the display 1600, or alternatively to some other auxiliary I/O device 1060.
  • a device may also be used to compose data items, such as e-mail messages, using the keypad 1400 and/or some other auxiliary I/O device 1060, such as a touchpad, a rocker switch, a thumb-wheel, or some other type of input device.
  • the composed data items may then be transmitted over the communications network 1401 via the communications subsystem 1001.
  • a voice communications mode In a voice communications mode, overall operation of the device is substantially similar to the data communications mode, except that received signals are output to a speaker 1100, and signals for transmission are generated by a microphone 1120.
  • Alternative voice or audio I/O subsystems such as a voice message recording subsystem, may also be implemented on the device 1000.
  • the display 1600 may also be utilized in voice communications mode, for example to display the identity of a calling party, the duration of a voice call, or other voice call related information.
  • the short-range communications subsystem enables communication between the mobile device 1000 and other proximate systems or devices, which need not necessarily be similar devices.
  • the short-range communications subsystem may include an infrared device and associated circuits and components, a BluetoothTM communications module to provide for communication with similarly-enabled systems and devices, or a NFC sensor for communicating with a NFC device or NFC tag via NFC communications.

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Claims (14)

  1. Mobile drahtlose Kommunikationsvorrichtung (30), die aufweist:
    ein Gehäuse (96);
    zumindest einen drahtlosen Transceiver (31), der von dem Gehäuse getragen wird; und
    eine Mehrbandantenne (32), die von dem Gehäuse getragen wird und mit dem zumindest einen drahtlosen Transceiver gekoppelt ist, wobei die Mehrbandantenne aufweist
    einen ersten Strahler (33), der ein Strahlerelement (36) und ein parasitäres Element (35) angrenzend dazu aufweist, wobei das parasitäre Element selektiv zwischen floating und geerdeten Zuständen umschaltbar ist, und
    einen zweiten Strahler (34), der von dem ersten Strahler isoliert ist, dadurch gekennzeichnet, dass der zweite Strahler aufweist
    einen ersten Zweig (40),
    einen zweiten Zweig (41), der mit dem ersten Zweig gekoppelt ist,
    wobei die ersten und zweiten Zweige einen dazwischen verlaufenden Schlitz (42) definieren.
  2. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 1, wobei die Mehrbandantenne ein dielektrisches Substrat (37) aufweist, das die ersten und zweiten Strahler trägt.
  3. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 2, wobei das dielektrische Substrat eine nicht-planare Form hat.
  4. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 2, wobei das dielektrische Substrat von einem Boden des Gehäuses getragen wird; und wobei der erste und der zweite Strahler von jeweiligen gegenüberliegenden ersten und zweiten Seiten des dielektrischen Substrats getragen werden.
  5. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 1, wobei der Schlitz (42) einen ersten rechteckförmigen Abschnitt aufweist, der sich sowohl in den ersten als auch in den zweiten Zweig erstreckt, und einen zweiten rechteckförmigen Abschnitt, der mit dem ersten rechteckförmigen Abschnitt gekoppelt ist und die ersten und zweiten Zweige teilt.
  6. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 5, wobei der zweite Strahler eine Zufuhrverbindung (53) an dem ersten Zweig und eine Referenzspannungsverbindung (54) an dem zweiten Zweig aufweist.
  7. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 1, wobei das Strahlerelement einen ersten Zweig (43) aufweist, der sich entlang des parasitären Elements erstreckt, und einen zweiten Zweig (44), der sich von dem ersten Zweig weg erstreckt.
  8. Die mobile drahtlose Kommunikationsvorrichtung gemäß Anspruch 1, wobei das parasitäre Element eine rechteckige Form hat.
  9. Ein Verfahren zum Herstellen einer mobilen drahtlosen Kommunikationsvorrichtung (30), das aufweist:
    Bilden einer Mehrbandantenne (32), aufweisend einen ersten Strahler (33), der ein Strahlerelement (36) und ein parasitäres Element (35) angrenzend dazu aufweist, wobei das parasitäre Element selektiv zwischen floating und geerdeten Zuständen umschaltbar ist, und
    einen zweiten Strahler (34), der von dem ersten Strahler isoliert ist und aufweist
    einen ersten Zweig (40),
    einen zweiten Zweig (41), der mit dem ersten Zweig gekoppelt ist, wobei die ersten und zweiten Zweige einen dazwischen verlaufenden Schlitz (42) definieren;
    Koppeln zumindest eines drahtlosen Transceivers (31), der von einem Gehäuse (96) getragen wird; und
    Koppeln der Mehrbandantenne, die von dem Gehäuse getragen wird, und mit dem zumindest einen drahtlosen Transceiver.
  10. Das Verfahren gemäß Anspruch 9, wobei das Bilden der Mehrbandantenne ein Bilden eines dielektrischen Substrats (37) aufweist, um die ersten und zweiten Strahler zu tragen.
  11. Das Verfahren gemäß Anspruch 10, wobei das Bilden der Mehrbandantenne ein Bilden des dielektrischen Substrats aufweist, um eine nicht-planare Form zu haben.
  12. Das Verfahren gemäß Anspruch 10, das weiter aufweist ein Koppeln des dielektrischen Substrats, um von einem Boden des Gehäuses getragen zu werden, und Koppeln des ersten und des zweiten Strahlers, um von jeweiligen gegenüberliegenden ersten und zweiten Seiten des dielektrischen Substrats getragen zu werden.
  13. Das Verfahren gemäß Anspruch 9, wobei das Bilden der Mehrbandantenne aufweist ein Bilden des Schlitzes (42), um einen ersten rechteckförmigen Abschnitt aufzuweisen, der sich sowohl in den ersten als auch in den zweiten Zweig erstreckt, und einen zweiten rechteckförmigen Abschnitt, der mit dem ersten rechteckförmigen Abschnitt gekoppelt ist und die ersten und zweiten Zweige teilt.
  14. Das Verfahren gemäß Anspruch 13, wobei das Bilden der Mehrbandantenne aufweist ein Bilden des zweiten Strahlers, um eine Zufuhrverbindung (53) auf dem ersten Zweig und eine Referenzspannungsverbindung (54) auf dem zweiten Zweig aufzuweisen.
EP12152968.9A 2012-01-27 2012-01-27 Mobile drahtlose Kommunikationsvorrichtung mit Mehrbandantenne und zugehörige Verfahren Active EP2621015B1 (de)

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CA2803642A CA2803642C (en) 2012-01-27 2013-01-23 Mobile wireless communications device with multiple-band antenna and related methods

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