EP2028720B1 - Antenne multibande et méthodologie associée pour dispositif de communication radio - Google Patents

Antenne multibande et méthodologie associée pour dispositif de communication radio Download PDF

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Publication number
EP2028720B1
EP2028720B1 EP07114890A EP07114890A EP2028720B1 EP 2028720 B1 EP2028720 B1 EP 2028720B1 EP 07114890 A EP07114890 A EP 07114890A EP 07114890 A EP07114890 A EP 07114890A EP 2028720 B1 EP2028720 B1 EP 2028720B1
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EP
European Patent Office
Prior art keywords
patch
antenna
folded
frequency band
resonant
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EP07114890A
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German (de)
English (en)
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EP2028720A1 (fr
Inventor
Dong Wang
Geyi Wen
Qinjiang Rao
Mark Pecen
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BlackBerry Ltd
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Research in Motion Ltd
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Priority to EP07114890A priority Critical patent/EP2028720B1/fr
Publication of EP2028720A1 publication Critical patent/EP2028720A1/fr
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths

Definitions

  • the present invention relates generally to a manner by which to transduce signal energy at a radio device, such as a portable mobile station. More particularly, the present invention relates to an antenna, and an associated methodology, for the radio device.
  • the antenna is of dimensions permitting its positioning within, or carriage together with, a hand-carriable mobile station while providing operability over a wide range of frequencies.
  • the antenna is formed of a set of antenna patches that are configured together in a tri-dimensional arrangement. The spatial requirements of the antenna are reduced by folding one of the patches to cause contiguous portions thereof to extend in planar directions offset from that of another of the antenna patches.
  • the antenna is operable with a multi-mode radio device that operates at multiple, spaced frequency bands.
  • a cellular, or cellular-like communication system is an exemplary mobile radio communication system whose availability is widespread throughout significant portions of the populated areas of the world.
  • a cellular communication system is constructed generally to be in conformity with operational requirements set forth in an operating specification promulgated by a standards-setting body.
  • the operating specification defines a radio air interface extending between communication stations, i.e., the network infrastructure and a mobile station, operable in the communication system.
  • Regulatory bodies allocate portions of the electromagnetic spectrum. Different allocations are made for different types of systems, and different regulatory bodies regulate the use of the electromagnetic spectrum in different jurisdictions.
  • operating standards associated with different communication systems define operating parameters including parameters associated with the frequencies upon which the radio air interface is defined.
  • a mobile station While early implementations of mobile stations used to communicate in a cellular communication system were relatively bulky, and were relatively heavy, advancements in integrated-circuit, processing, and communication technologies have permitted the miniaturization of newer implementations of mobile stations. Mobile stations are now regularly of dimensions permitting their hand-carriage. And, increasingly, mobile stations are constructed to be operable in conformity with the operating requirements of more than one operating standard. Such a mobile station, referred to as a multi-mode mobile station, is capable of operation pursuant to a communication service by way of any communication system with which the multi-mode mobile station is operable.
  • Miniaturization of a mobile station provided as a result of the technological advancements noted-above has permitted the circuitry required for multi-mode mobile station to be housed in a housing of small dimension.
  • Multi-mode mobile stations are, for example, sometimes of configurations permitting their carriage in a shirt pocket of the user. Miniaturization is provided, not only by reducing the physical dimensions of the circuit paths of the receive and transmit chains of the circuitry of the mobile station, but also through sharing of circuit components between circuit paths used for communications pursuant to the different communication systems.
  • An antenna element is generally most effective in transducing signal energy when the transducer is of dimensions related to the wavelength of the signal energy that is to be transduced. For instance, antenna lengths corresponding to, or multiples of, one-quarter wavelengths of the signal energy that is to be transduced exhibit good antenna characteristics.
  • the mobile station forms a multi-mode mobile station that operates at different frequency bands, different sizes of antennas are needed to transduce the signal energy of the different the circuitry of a multi-mode mobile station continue to decrease, dimensional requirements of the antenna elements are sometimes a limiting factor limiting further miniaturization of a mobile station.
  • Significant effort has therefore been exerted to construct an antenna, operable over multiple frequency bands, that is also of small dimension, thereby to permit its positioning within the housing of a mobile station.
  • a PIFA Planar Inverted-F Antenna
  • a PIFA is sometimes utilized to transduce signal energy at a mobile station.
  • a PIFA is of compact size and is of a low profile while providing for transducing of signal energy at more than one frequency band.
  • a problem typically exhibited with a PIFA is that a PIFA generally exhibits pass bands of narrow bandwidths.
  • a bandwidth of a PIFA is enhanced by configuring the PIFA together with a parasitic element. Such use of a parasitic element, however, increases the dimensions of the antenna. Additionally, tuning of the antenna becomes more difficult due to the additional resonant branches. Also, the branches sometimes introduce EMI (Electromagnetic Interference) that interferes with antenna operation. [0008A] U.S.
  • pre-grant publication 2003/0142022 discloses an apparatus and method for tuning the patches of a multi-band antenna using transmission lines, which inherently use up space in a mobile device.
  • PCT application KR01/01673 discloses a multi-band antenna, however, the antenna disclosed in that prior art reference is difficult to tune because the tuning is effectuated by slits formed in the radiating elements.
  • PCT application EP 2003/006199 also discloses a multi-band antenna, however, the disclosed antenna uses a multi-level radiator that requires a lot of space.
  • An improved antenna structure of small dimensions, and operable to transduce signal energy at multiple, disparate frequency bands is therefore needed.
  • Figure 1 illustrates a functional block diagram of a radio communication system in which an embodiment of the present invention is operable.
  • Figure 2 illustrates a representation of the configuration of the antenna of an embodiment of the present invention.
  • Figure 3 illustrates a representation of the antenna shown in Figure 2 , here in which the antenna is configured with folds formed in the folded patch portion thereof.
  • Figure 4 illustrates a representation of an exemplary return loss, plotted as a function of frequency, of an exemplary antenna of an embodiment of the present invention.
  • Figures 5 and 6 represent exemplary radiation patterns exhibited by the antenna of an embodiment of the present invention at two separate frequencies, at 950 MHz and 1880 MHz, respectively.
  • Figure 7 illustrates a method flow diagram representative of method of operation of an embodiment of the present invention.
  • the present invention accordingly, advantageously provides an antenna, and an associated methodology for transducing signal energy at a radio device, such as a portable mobile station.
  • an antenna is provided for the radio device.
  • the antenna is of compact dimensions that permits its positioning within, or carriage together with, a mobile station.
  • the antenna characteristics of the antenna permit its operation at selected frequency bands over a wide range of frequencies.
  • the antenna includes a set of antenna patches that are configured together in a tri-dimensional arrangement that extends in multiple planar directions. Reduction in the spatial requirements of the antenna is provided by the tri-dimensional configuration of the antenna. One of the patches of the set of antenna patches is forwarded such that contiguous portions thereof extend in planar directions offset from that of a portion contiguous thereto.
  • the antenna is configured to be operable at disparate frequency bands over a wide range of frequencies.
  • a first patch of the antenna forms a first main radiation element.
  • the first patch is L-shaped, forming an L-shaped patch.
  • the first radiation element is resonant at a frequency band depending upon the length of the patch and its location of connection to the second patch of the antenna.
  • the first main radiation element forming the L-shaped patch includes both a feed point connection and a ground connection that are connectable with corresponding portions of the circuitry of the mobile station. Signal energy generated at the mobile station circuitry is provided to the antenna at the feed point connection, and signal energy transduced into electrical form at the antenna is provided to the transceiver circuitry at the feed point connection.
  • the L-shaped patch includes a lengthwise-extending leg piece and a foot piece extending outwardly therefrom. Appropriate selection of the dimensions of the leg piece and of the foot piece are determinative, together with the location of the connection of the L-shaped patch with the second antenna patch, of the characteristics of the first antenna patch.
  • the second antenna patch forms a folded patch, formed of multiple folded portions.
  • a first portion is contiguous to, and integral with, the L-shaped patch forming the first antenna patch.
  • the first portion is folded to extend in a planar direction offset from that of the planar direction in which the L-shaped first antenna patch extends.
  • the first folded portion of the folded antenna patch extends, e.g., in a planar direction substantially perpendicular to the planar direction in which the L-shaped, first antenna patch extends.
  • the folded antenna patch further includes a second folded portion, formed contiguous to, and integral with, the first folded portion.
  • the second folded portion is folded to extend in a direction offset from the planar direction in which the first folded section extends.
  • the second folded portion extends in a direction, e.g., substantially perpendicular to the planar direction in which the first folded portion extends.
  • the folded antenna patch further includes a third folded portion, formed contiguous to and integral with the second folded portion.
  • the third folded portion extends, e.g., in a direction substantially perpendicular to the planar direction in which the second folded portion extends.
  • the folded, second antenna patch includes a tuning strip, tunable to be of a length to cause the antenna patch to include resonant frequencies at a desired frequency range.
  • the antenna forms a pent-band antenna, capable of operation at five disparate frequency bands, including the 850, 900, 1800, 1900, and 2200 MHz frequency bands.
  • the antenna is configured to be resonant at other, and other numbers of, frequency bands.
  • the antenna permits signal energy to be transduced at any of the resonant frequencies. Due to its compact size, the antenna facilitates increased miniaturization of a mobile station, permitting its positioning within the housing of the mobile station.
  • a first patch forms a first radiation element.
  • the first patch is defined in a first planar direction and is resonant at least at a first higher frequency band.
  • a second patch forms a second resonant element.
  • the second patch includes a contiguous first portion, contiguous and integral with, the first patch.
  • the contiguous first portion is folded to be upstanding beyond the first planar direction in which the first patch extends. Thereby, the contiguous first portion extends in a second planar direction.
  • the second patch is resonant at a lower frequency band and a second higher frequency band.
  • the first and second higher frequency bands are, e g., of corresponding, overlapping, or differing frequencies.
  • a radio communication system shown generally at 10, provides for communication services, with mobile stations, of which the mobile station 12 is representative, by way of radio links defined upon a radio air interface 14. While the mobile station is generally representative of a mobile station operable in conformity with operating protocols of any of various operating specifications, in the exemplary implementation, the mobile station is operable to communicate at the 850, 900, 1800, 1900, and 2200 MHz frequency bands that correspond to 4 GSM (Global System for Mobile communications) frequency bands and a UMTS (Universal Mobile Telephone Service) band. Operability of the mobile station at the GSM frequencies and the UMTS frequencies provides a mobile station that is permitting of operation in a majority of the world-wide areas that provide for cellular-type communications.
  • GSM Global System for Mobile communications
  • UMTS Universal Mobile Telephone Service
  • a plurality of radio access networks (RANs), radio access networks 16, 18, 22, 24, and 26 are illustrated in Figure 1 .
  • the radio access networks 16-26 are representative, respectively, of a GSM 850 MHz system, a GSM 900 MHz system, a GSM 1800 MHz system, a GSM 1900 MHz system, and a UMTS 2200 MHz network, respectively.
  • the mobile station 12 When the mobile station 12 is positioned within the coverage area of any of such networks 16-26, the mobile station is capable of communicating with the radio access network.
  • the mobile station is positioned within the coverage of each of the radio access networks. That is to say, in the illustrated example, all of the networks have overlapping coverage areas.
  • the radio access networks 16-26 are coupled, here by way of gateways (GWYs) 28 to a core network 30.
  • GWYs gateways
  • CE communication endpoint
  • the communication endpoint is representative of a communication device that communicates with the mobile station.
  • Transceiver circuitry 36 is embodied at the mobile station, formed of a transmit part and a receive part to operate upon data that is to be communicated by the mobile station or data that is received thereat.
  • the receive and transmit chains forming the receive and transmit parts, respectively, of the transceiver circuitry are operable in conformity with the operating standards and protocols associated with, and defining, the respective systems.
  • the transceiver circuitry of the mobile station is coupled to an antenna 42 of an embodiment of the present invention.
  • the antenna is constructed to permit its operation to transduce signal energy at all of the frequency bands at which the mobile station transceiver circuitry is operable.
  • the antenna 42 operates to transduce signal energy at any of the 850, 900, 1800, 1900, and 2200 MHz frequency bands.
  • the antenna is positioned within the housing 44 of the mobile station to be supportively enclosed by the housing. Howsoever positioned, the antenna is of small dimensions, facilitating its carriage together with the mobile station at any of the frequencies at which the mobile station operates.
  • Figure 2 illustrates the antenna 42, shown in Figure 1 to form part of the mobile station 12.
  • the exemplary implementation shown in Figure 2 forms a pent-band, i.e., a five-band, antenna that operates in conjunction with a five-band mobile station to transduce signal energy during its operation.
  • the view shown in Figure 2 is representative of the antenna prior to configuration into a tri-dimensional form. The view is that of the pattern of the antenna.
  • the antenna is folded at folds 48, 52, and 54, as shall be described below.
  • the antenna is shaped into three dimensions to be tri-dimensional in shape.
  • the resultant form of the antenna is substantially rectangular.
  • the antenna includes two antenna patches, a first antenna patch 58 and a second antenna patch 62.
  • the first antenna patch 58 here comprises an L-shaped patch including a lengthwise-extending leg part 64 and an outwardly-extending foot part 66.
  • An outer lengthwise dimension of the L-shaped patch extends in a linear direction along the entire length of the patch.
  • An inner lengthwise dimension, also extending in the same linear direction, is of a length that extends to the foot part and is of a length, in part, dependent upon the positioning and configuration of the foot part.
  • the first antenna patch is connected to the transceiver circuitry (shown in Figure 1 ) of the mobile station at a feed point connection 72 and a ground connection 74.
  • the first antenna patch is resonant at a frequency band of frequencies determined by the characteristics of the antenna patch.
  • the lengthwise dimension of the patch i.e., the length of the leg piece of the L-shaped patch together with the location of connection of the second antenna patch is, in significant part, determinative of the operable frequency band of the first antenna patch.
  • the first antenna patch is configured to exhibit a resonant band of a relatively high frequency.
  • the second antenna patch 62 forms a folded patch with three portions, a first portion 78, a second portion 82, and a third portion 84 defined by the folding lines 48, 52, and 54, respectively. That is to say, the portion 78, 82, and 84 are defined by the folding of the antenna patch at the fold lines.
  • the first portion is constructed to be contiguous to, and integral with, portions of the first antenna patch 58.
  • the portion 78 When folded about the fold line 48, the portion 78 extends in a second planar direction, offset from a first planar direction in which the first antenna patch extends.
  • the planar directions are offset, e.g., by ninety degree angles to be perpendicular to one another.
  • the second portion 82 is formed contiguous to, and integral with, the first portion 78. Folding of the second portion about the fold line 52 causes the second portion to extend in a third planar direction, offset from the second planar direction in which the portion 78 extends.
  • the angle formed by folding of the antenna patch about the fold line 54 forms a substantially perpendicular angle to cause the third portion to extend in a planar direction substantially perpendicular to the planar direction of the second portion.
  • the three portions of the second antenna patch and the first antenna patch define four planar directions that, when perpendicular, together define a rectangular shape.
  • the second portion 82 of the antenna patch 62 includes a tuning strip that is of a length that is determinative of one of the frequency ranges, and hence bands, at which the antenna is resonant. And, the length of the patch, in the lengthwise direction, independently determines resonant frequencies at a lower frequency band and at a high frequency band. Tuning of the lower frequency is provided by the selection, or change, of the configuration of the tuning strip.
  • FIG 3 again illustrates the antenna 42, shown previously in Figures 1 and 2 .
  • the antenna is here positioned at a substrate 92 at which the transceiver circuitry 36 is mounted.
  • the transceiver circuitry is connected by way of conductive paths 94 with the feed point connection and the ground connection 72 and 74, respectively.
  • the antenna is mounted upon a substrate part 98 that, in the exemplary implementation forms a FR-4 dielectric substrate of a thickness of 1.5 millimeters and is of a relative permittivity of 4.4.
  • Folded as shown, the second portion 82 of the second antenna patch is upstanding beyond the first antenna patch 58.
  • the first portion 78 is of a height of 10 millimeters in the exemplary implementation.
  • the ground panel size is 55 millimeters by 90 millimeters.
  • the conductive paths of the first and second antenna patches of the antenna are of lengths and widths that are resonant at selected frequency ranges, selected in the exemplary implementation to be resonant at five frequency ranges, including the 850, 900, 1800, 1900, and 2200 MHz bands.
  • a lower frequency band width extends between 824 and 961 MHz while a higher frequency band width extends from 1700 to 2200 MHz.
  • Appropriate selection of the dimensions of the first antenna patch extends the bandwidth of the higher frequency band to extend between 1600 and 2300 MHz. Due to the folded nature of the second antenna patch, the space required on the substrate 92/98 is reduced relative to a two-dimensional implementation.
  • Figure 4 illustrates a graphical representation 104 that shows exemplary return loss of an exemplary antenna 42 shown in any of the preceding figures.
  • Review of the representation illustrates pass bands 106, 108, and 112. Through appropriate selection of the configuration of the antenna, the pass bands are located at other frequencies.
  • Figures 5 and 6 illustrate exemplary radiation patterns exhibited by the antenna 42 in an exemplary implementation.
  • a first plot 118 is representative of the radiation pattern at 950 MHz in the YZ plane.
  • the curve 122 is representative of a second radiation pattern, also at the 950 MHz frequency, but in an XY plane.
  • a first radiation pattern 128 is representative of the radiation pattern at 1880 MHz in the YZ plane.
  • the radiation pattern 132 is representative of the radiation pattern, at the same frequency, but in the XY plane.
  • Figure 7 illustrates a method flow diagram shown generally at 142, representative of the method of operation of an embodiment of the present invention.
  • the method transuces signal energy at a radio device.
  • a first radiation element is formed, comprised of a first patch defined to extend in a first planar direction and resonant at a first frequency band.
  • a second radiation element is formed.
  • the second radiation element includes a folded loop having a contiguous first portion.
  • the contiguous first portion is contiguous and integral with the first patch.
  • the second radiation element also includes a contiguous second portion, contiguous and integral with the first portion.
  • the contiguous first portion is folded to be upstanding beyond the first patch in a second planar direction and the contiguous second portion is folded to extend in a third planar direction, offset from the second planar direction.
  • the second radiation element is resonant at a second frequency band.
  • the second radiation element further includes a contiguous third portion, contiguous and integral with the contiguous second portion.
  • the contiguous third portion extends in a fourth planar direction, offset from the third planar direction.
  • the element is formed such that the second and fourth planar directions are substantially parallel and such that the third planar direction is substantially parallel to the first planar direction in which the first element extends.
  • the folded loop is tuned.
  • signal energy is transduced within any of the first and second frequency bands at any of the first patch and the folded loop.
  • a multi-band antenna is formed, of compact configuration, facilitating its use together with a mobile station, or other portable radio device.

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  • Waveguide Aerials (AREA)

Claims (15)

  1. Antenne (42) pour radiocommunication sur cinq bandes, destinée à être connectée à une circuiterie d'émission-réception radio, ladite antenne (42) étant montée sur un substrat (98) et comprenant :
    une première pastille (58) formant un premier élément rayonnant, ladite première pastille ayant une forme de L et possédant une branche qui s'étend longitudinalement (64) et une partie d'extrémité qui s'étend vers l'extérieur (66), la dimension longitudinale de la pastille en forme de L s'étendant dans une direction longitudinale sur toute la longueur de la pastille et une dimension longitudinale intérieure s'étendant également dans la direction linéaire en direction de la partie d'extrémité qui s'étend vers l'extérieur, la première pastille d'antenne comprenant un point de connexion d'alimentation (72) qui s'étend à partir de la première pastille d'antenne et qui lui est contiguë, la première pastille d'antenne étant connectée à la circuiterie d'émission-réception par le point de connexion d'alimentation (72) et par une connexion de masse (74) de ladite antenne (42), la première pastille d'antenne étant configurée pour résonner à une fréquence déterminée par la dimension longitudinale de la pastille en forme de L et par une position d'une connexion d'une deuxième pastille d'antenne repliée (62) avec la première pastille d'antenne, ladite première pastille résonnant à au moins une première bande de fréquence supérieure ;
    dans lequel la deuxième pastille d'antenne repliée (62) forme un deuxième élément rayonnant et comprend une première partie (78), une deuxième partie (82) et une troisième partie (84), ladite première partie (78) étant contiguë à ladite première pastille (58) et faite d'une pièce avec celle-ci, la première partie (78) de la deuxième pastille d'antenne repliée (62) étant repliée dans une deuxième direction plane qui est substantiellement perpendiculaire à la première direction plane de la première pastille, la deuxième partie (82) de la deuxième pastille d'antenne repliée (62) étant contiguë à la première partie (78) et faite d'une pièce avec celle-ci et étant repliée dans une troisième direction plane, la deuxième partie (82) possédant une bande de syntonisation (88) d'une longueur qui détermine une des bandes de fréquence de l'antenne (42), la troisième partie de la deuxième pastille d'antenne repliée (62) étant repliée pour s'étendre dans une quatrième direction plane substantiellement perpendiculaire à la deuxième partie, la deuxième pastille (62) résonnant au moins sur une bande de fréquence inférieure et sur une deuxième bande de fréquence supérieure.
  2. Antenne (42) selon la revendication 1, dans laquelle la première bande de fréquence supérieure à laquelle la première pastille (58) est configurée pour résonner dépend d'une dimension longitudinale d'une branche de la première pastille qui s'étend longitudinalement (64).
  3. Antenne (42) selon la revendication 2, dans laquelle la direction longitudinale de la pastille en forme de L (64) comprend une dimension longitudinale intérieure déterminée en implantant la partie d'extrémité (66) par rapport à la branche allongée (64).
  4. Antenne (42) selon la revendication 2, dans laquelle la dimension longitudinale de la branche allongée (64) comprend une dimension longitudinale extérieure qui définit une longueur totale de la branche (64).
  5. Antenne (42) selon la revendication 1, dans laquelle la première bande de fréquence supérieure à laquelle résonne le premier élément rayonnant (58) formant ladite première pastille se situe entre 1 600 MHz et 2 300 MHz.
  6. Antenne (42) selon la revendication 1, dans laquelle la première bande de fréquence supérieure se superpose au moins à la deuxième bande de fréquence supérieure.
  7. Antenne (42) selon la revendication 1, dans laquelle ladite première pastille (58) est en outre configurée pour comprendre une connexion de point d'alimentation (72) du dispositif de communication.
  8. Antenne (42) selon la revendication 1, dans laquelle ladite première pastille (58) est en outre configurée pour comprendre une connexion de masse (74) du dispositif de communication.
  9. Antenne (42) selon la revendication 1, dans laquelle la troisième direction plane dans laquelle s'étend la deuxième partie (82) est substantiellement perpendiculaire à la deuxième direction plane dans laquelle s'étend la première partie (78).
  10. Antenne (42) selon la revendication 1, dans laquelle la deuxième bande de fréquence supérieure à laquelle le deuxième élément rayonnant formant ladite deuxième pastille (62) est configuré pour résonner dépend d'une dimension longitudinale de ladite deuxième pastille (62).
  11. Antenne (42) selon la revendication 1, dans laquelle le deuxième élément rayonnant formant ladite deuxième pastille (62) comprend en outre une bande de syntonisation, possédant une longueur de syntonisation, la dimension longitudinale de la bande de syntonisation déterminant partiellement la bande de fréquence inférieure à laquelle résonne ladite deuxième pastille (62).
  12. Antenne (42) selon la revendication 1, dans laquelle la première bande de fréquence supérieure couvre de 1 600 à 2 300 MHz et dans lequel la deuxième bande de fréquence supérieure couvre de 1700 à 2 00 MHz.
  13. Antenne (42) selon la revendication 1, dans laquelle la bande de fréquence inférieure à laquelle résonne ladite deuxième pastille (62) comprend une bande de fréquence entre 824 MHz et 961 MHz et dans lequel la deuxième bande de fréquence supérieure comprend une bande de fréquence sur une plage de 1700 MHz à 2200 MHz.
  14. Procédé (142) de transduction de l'énergie du signal sur un dispositif radio à cinq bandes, ledit procédé comprenant les étapes consistant à :
    former un premier élément rayonnant en forme de L (144) comprenant une première pastille définie comme s'étendant dans une première direction plane et résonnant sur une première bande de fréquence supérieure, ladite première pastille possédant : une branche qui s'étend longitudinalement (64) et une partie d'extrémité qui s'étend vers l'extérieur (66), la dimension longitudinale de la pastille en forme de L s'étendant dans une direction linéaire sur toute la longueur de la pastille et une dimension longitudinale intérieure s'étendant également dans la direction linéaire en direction de la partie d'extrémité qui s'étend vers l'extérieur, la première pastille d'antenne comprenant un point de connexion d'alimentation (72) qui s'étend à partir de la première pastille d'antenne et qui lui est contiguë, la première pastille d'antenne étant connectée à la circuiterie d'émission-réception par le point de connexion d'alimentation (72) et par une connexion de masse (74) de ladite antenne (42), la première pastille d'antenne résonnant à une fréquence déterminée par la dimension longitudinale de la pastille en forme de L et par une position d'une connexion d'une deuxième pastille d'antenne repliée (62) avec la première pastille d'antenne ;
    former un deuxième élément rayonnant (146) qui comprend la deuxième pastille qui est contiguë à ladite première pastille, qui est faite d'une pièce avec celle-ci et qui comprend une première partie (78), une deuxième partie (82) et une troisième partie (84), la première partie (78) de la deuxième pastille d'antenne repliée étant repliée dans une deuxième direction plane qui est substantiellement perpendiculaire à la première direction plane de la première pastille, la deuxième partie (82) de la deuxième pastille d'antenne repliée (62) étant contiguë à la première partie (78) et faite d'une pièce avec celle-ci et étant repliée dans une troisième direction plane, la deuxième partie (82) possédant une bande de syntonisation (88) d'une longueur qui détermine une des bandes de fréquence de l'antenne (42), la troisième partie (84) de la deuxième pastille d'antenne repliée (62) étant repliée dans une quatrième direction plane substantiellement perpendiculaire à la deuxième partie, le deuxième élément résonnant au moins sur une bande de fréquence inférieure et sur une deuxième bande de fréquence supérieure ;
    monter l'antenne (42) sur un substrat (98) et connecter l'antenne à la circuiterie d'émission-réception ; et
    effectuer la transduction (152) de l'énergie du signal sur l'une des bandes de fréquence supérieure et inférieure, à l'aide de soit la première pastille, soit la bande de syntonisation (88).
  15. Procédé (142) selon la revendication 14, comprenant en outre l'étape consistant à syntoniser la bande de syntonisation (88).
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US9136594B2 (en) 2009-08-20 2015-09-15 Qualcomm Incorporated Compact multi-band planar inverted F antenna
TWI483471B (zh) * 2011-08-02 2015-05-01 Arcadyan Technology Corp 雙頻天線
US20170018845A1 (en) * 2015-07-17 2017-01-19 Samsung Electro-Mechanics Co., Ltd. Antenna apparatus
WO2017107057A1 (fr) * 2015-12-22 2017-06-29 华为技术有限公司 Terminal mobile
US11962102B2 (en) 2021-06-17 2024-04-16 Neptune Technology Group Inc. Multi-band stamped sheet metal antenna

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KR100368939B1 (ko) * 2000-10-05 2003-01-24 주식회사 에이스테크놀로지 높은 복사효율과 광대역 특성을 갖는 내장형 안테나와 그실장방법
DE10049845A1 (de) * 2000-10-09 2002-04-11 Philips Corp Intellectual Pty Mehrband-Mikrowellenantenne
US6650295B2 (en) 2002-01-28 2003-11-18 Nokia Corporation Tunable antenna for wireless communication terminals
DE10231961B3 (de) 2002-07-15 2004-02-12 Kathrein-Werke Kg Niedrig bauende Dual- oder Multibandantenne, insbesondere für Kraftfahrzeuge
US7068230B2 (en) * 2004-06-02 2006-06-27 Research In Motion Limited Mobile wireless communications device comprising multi-frequency band antenna and related methods

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