JP5261251B2 - Filter device, wireless communication module using the same, and communication device device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem, wherein since a coupling electrode is used to generate an inductive coupling among a plurality of resonating electrodes, a signal in a frequency band in the vicinity of a predetermined passband can be attenuated sharply, but since &lambda;/2 resonance occurs in the coupling electrode, when an attempt is made to attenuate more the signal in a frequency band other than the predetermined passband, the &lambda;/2 resonance becomes one that cannot be ignored. <P>SOLUTION: The filter apparatus positioned at a reference-electrode side rather than at a coupling electrode, is electrically connected to a coupling path between a short-circuiting terminal of a first resonating electrode and a short-circuiting terminal of a second resonating electrode in the coupling electrode, and is provided with a capacitive electrode which is capacitively coupled with a reference electrode. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a filter device and a communication device using the same. The communication device can be suitably used for a wireless communication device such as a mobile phone or a wireless LAN.

  Conventionally, a bandpass filter used in a communication device or the like is required to attenuate a signal in a frequency band excluding a predetermined passband. Therefore, as disclosed in Patent Document 1, a filter device including a coupling electrode that electrically connects short-circuit ends of a plurality of resonance electrodes has been proposed. In the filter device disclosed in Patent Literature 1, by providing the above-described coupling electrode, not only capacitive coupling but also inductive coupling can be generated between the plurality of resonance electrodes. Thereby, the signal in the frequency band near the predetermined pass band can be attenuated sharply.

JP 2008-118615 A

  However, in recent years, it has been demanded that signals in a frequency band excluding a predetermined pass band be attenuated more greatly. In the filter device described in Patent Document 1, by using a coupling electrode that generates inductive coupling between a plurality of resonance electrodes, a signal in a frequency band near a predetermined pass band can be sharply attenuated. . On the other hand, since λ / 2 resonance occurs in this coupling electrode, this λ / 2 resonance cannot be ignored when attempting to attenuate a signal in a frequency band excluding a predetermined pass band more greatly.

  The present invention has been made in view of the above problems, and a filter device capable of greatly attenuating a signal in a frequency band excluding a predetermined pass band by reducing a harmonic component due to λ / 2 resonance, and An object of the present invention is to provide a wireless communication module and a communication device using the same.

  The filter device of the present invention is provided with a laminate formed by laminating a plurality of dielectric layers, a reference electrode disposed on one end face of the laminate, and a main surface of the dielectric layer, The first resonant electrode and the second resonant electrode, one end of which is a short-circuited end and the other end is an open end, and the short-circuited end of the first resonant electrode and the second resonant electrode A coupling electrode electrically connected to each of the ends. And it is located on the reference electrode side with respect to the coupling electrode and is electrically connected to a coupling path between the short-circuited end of the first resonance electrode and the short-circuited end of the second resonance electrode in the coupling electrode, A capacitor electrode capacitively coupled to the reference electrode is further provided.

  The filter device of the present invention includes a first resonance electrode and a second resonance electrode. Between the first resonance electrode and the input terminal for inputting a signal to the first resonance electrode, and between the second resonance electrode and the output terminal for outputting a signal from the second resonance electrode The signal is attenuated due to the λ / 2 resonance accompanying the electromagnetic coupling between the input / output terminal and the resonance electrode. The filter device of the present invention is located on the reference electrode side with respect to the coupling electrode and is electrically connected to a coupling path between the short-circuited end of the first resonance electrode and the short-circuited end of the second resonance electrode in the coupling electrode. And a capacitive electrode capacitively coupled to the reference electrode.

  As a result, the resonance frequency due to λ / 2 resonance in the coupling electrode can be shifted to the low frequency side without changing the coupling itself between the resonance electrodes by the coupling electrode. Therefore, the resonance frequency of λ / 2 resonance at the input / output terminal described above and the resonance frequency of λ / 2 resonance at the coupling electrode can be brought close to each other, so that these resonances can be canceled out. As a result, the signal in the frequency band excluding the predetermined pass band can be further attenuated.

It is a perspective view which shows the filter apparatus in the 1st Embodiment of this invention. It is a disassembled perspective view of embodiment shown in FIG. It is a conceptual diagram which shows the high frequency module and radio | wireless communication apparatus concerning one Embodiment of this invention. (A) is a filter characteristic concerning the filter apparatus of one Example of this invention. (B) is a filter characteristic concerning the filter apparatus of a comparative example.

  Hereinafter, the filter device of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the filter device 1 according to the first embodiment of the present invention includes a laminated body 7 formed by laminating a plurality of dielectric layers 3 including a first dielectric layer 5, and a laminated body. On the main surface of the first reference electrode 9 disposed on the main surface of the body 7, the second reference electrode 11 disposed on the back surface of the multilayer body 7, and the first dielectric layer 5 In order to input a signal to the first resonance electrode 13 and the first resonance electrode 13 and the first resonance electrode 13 which are provided side by side, each having one end portion being a short-circuit end and the other end portion being an open end. Input terminal 17, output terminal 19 for outputting a signal from second resonant electrode 15, and a short-circuit end of first resonant electrode 13 and a first short-circuited end of first resonant electrode 13. And a coupling electrode 21 electrically connected to the short-circuit end of each of the two resonance electrodes 15.

  In addition, the filter device 1 according to the present embodiment is located closer to the second reference electrode 11 than the coupling electrode 21 and short-circuits between the short-circuited end of the first resonance electrode 13 and the second resonance electrode 15 in the coupling electrode 21. A capacitive electrode 23 that is electrically connected to the coupling path with the end and capacitively coupled to the second reference electrode 11 is further provided. In the present embodiment, the reference electrode disposed on one end face of the multilayer body 7 is referred to as the second reference electrode 11, and the reference electrode disposed on the other end face of the multilayer body 7 is referred to as the first reference electrode 9. Yes.

  The filter device 1 according to the present embodiment includes an input terminal 17 for inputting a signal to the first resonance electrode 13 and an output terminal 19 for outputting a signal from the second resonance electrode 15. Electromagnetic coupling between the input / output terminal 19 and the resonance electrodes 13 and 15 between the first resonance electrode 13 and the input terminal 17 and between the second resonance electrode 15 and the output terminal 19. Signal attenuation due to λ / 2 resonance (hereinafter referred to as λ / 2 resonance by the input / output terminal 19).

  In addition, the filter device 1 according to the present embodiment is located closer to the second reference electrode 11 than the coupling electrode 21 and short-circuits between the short-circuited end of the first resonance electrode 13 and the second resonance electrode 15 in the coupling electrode 21. A capacitive electrode 23 that is electrically connected to the coupling path with the end and capacitively coupled to the second reference electrode 11 is further provided. It is possible to change the resonance frequency of λ / 2 resonance in the coupling electrode 21 (hereinafter referred to as λ / 2 resonance by the coupling electrode 21) by changing the length or width of the coupling electrode 21 itself. The coupling itself between the resonance electrodes 13 and 15 at 21 changes. However, the filter device 1 according to the present embodiment includes the capacitive electrode 23 described above, so that the coupling electrode 21 does not change the coupling itself between the resonant electrodes, and the λ / 2 resonance (hereinafter referred to as “λ / 2 resonance”) in the coupling electrode 21 is achieved. The λ / 2 resonance by the coupling electrode 21 can be shifted to the low frequency side.

  At this time, like the filter device 1 according to the present embodiment, it is preferable to be electrically connected to the coupling electrode 21 in the central portion of the coupling path. This is because the resonance frequency in λ / 2 resonance by the coupling electrode 21 can be greatly shifted to the low frequency side.

  Therefore, the resonance frequency at λ / 2 resonance by the input / output terminal 19 and the resonance frequency at λ / 2 resonance by the coupling electrode 21 can be brought close to each other. The λ / 2 resonance caused by the input terminal 17 and the output terminal 19 (hereinafter also simply referred to as the input / output terminal 19) is signal attenuation, and the λ / 2 resonance caused by the coupling electrode 21 is an increase in signal. These resonances can be canceled by making the resonance frequency close to. As a result, since the influence of λ / 2 resonance by the coupling electrode 21 can be reduced, signals in a frequency band excluding a predetermined pass band can be further attenuated.

  The filter device 1 according to the present embodiment includes a multilayer body 7 formed by laminating a plurality of dielectric layers 3 including a first dielectric layer 5. The shapes and dimensions of the multilayer body 7 and the dielectric layer 3 are set according to the frequency and application used. For example, the thickness of the dielectric layer 3 ensures insulation so that an electrical short circuit does not occur between the resonant electrode facing the dielectric layer 3 and the input terminal 17 and the output terminal 19. It is preferable to have a sufficient thickness.

  As the dielectric layer 3, for example, an inorganic material such as a ceramic material and a resin material can be used. Specifically, as the ceramic material, for example, alumina ceramics, mullite ceramics, and glass ceramics can be used. Examples of the resin material include tetrafluoroethylene-ethylene resin (polytetrafluoroethylene; PTFE), tetrafluoroethylene-ethylene copolymer resin (tetrafluoroethylene-ethylene copolymer resin; ETFE), and tetrafluoride. Fluorine resin such as ethylene-perfluoroalkoxyethylene copolymer resin (tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin; PFA), glass epoxy resin, and polyimide can be used.

  The filter device 1 according to the present embodiment includes a first reference electrode 9 disposed on the main surface of the multilayer body 7. The filter device 1 according to the present embodiment includes a second reference electrode 11 disposed on the back surface of the multilayer body 7. The first reference electrode 9 and the second reference electrode 11 are connected to an external wiring (not shown) so as to have a reference potential such as a ground potential.

  It is preferable that the first reference electrode 9 and the second reference electrode 11 are respectively disposed on the entire main surface and back surface of the multilayer body 7. This is because leakage of electromagnetic waves generated along with signal transmission inside the laminate 7 can be suppressed. However, when the input terminal 17 and the output terminal 19 are taken out to the outside on the main surface or the back surface of the multilayer body 7 as in this embodiment, an electrical short circuit with the input / output terminal 19 is prevented. Therefore, it is preferable that the input / output terminal 19 is disposed at a portion other than the take-out port so as to be separated from the input / output terminal 19.

  As the first reference electrode 9 and the second reference electrode 11, it is preferable to use members having good conductivity. As a member having good conductivity, for example, a metal member such as Au, Ag, Cu, Al, Pt, Pd, W, and Mo can be used.

  The filter device 1 according to the present embodiment is provided on the main surface of the first dielectric layer 5, each having one end connected to a reference potential and the other end being an open end. A first resonance electrode 13 and a second resonance electrode 15 are provided.

  The wavelength component corresponding to the pass band in the input signal can be extracted by the electromagnetic resonance coupling between the adjacent resonance electrodes provided side by side. At this time, the wavelength component corresponding to the pass band in the input signal is efficiently extracted by using the λ / 4 resonance by setting the length of the resonant electrode to approximately ¼ of the wavelength component corresponding to the pass band. Can do. Note that, as the first resonance electrode 13 and the second resonance electrode 15, it is preferable to use a member having good conductivity similarly to the first reference electrode 9.

  In the filter device 1 according to the present embodiment, the first resonance electrode 13 and the second resonance electrode 13 are arranged so that the short-circuit end of the first resonance electrode 13 and the short-circuit end of the second resonance electrode 15 are staggered. Although the resonance electrode 15 is provided, it is not limited to this.

  In addition, as the resonance electrodes, it is necessary to include the two resonance electrodes of the first resonance electrode 13 and the second resonance electrode 15, but as the plurality of resonance electrodes, the first resonance electrode 13 and the second resonance electrode 13 are provided. However, the present invention is not limited to the configuration including only the resonance electrode 15. It may be a so-called interdigital type in which three or more resonance electrodes are provided as in the present embodiment, and short-circuit ends of these resonance electrodes are alternately connected.

  The filter device 1 according to the present embodiment is disposed on the main surface of the first dielectric layer 5 and is connected to one end of each of the first resonance electrode 13 and the second resonance electrode 15. 3 reference electrodes 25 are provided. In this way, by connecting one end of the first resonance electrode 13 and the second resonance electrode 15 to the third reference electrode 25 connected to the reference potential, the first resonance electrode 13 and the second resonance electrode 13 are connected to the reference potential. One end of each of the resonance electrodes 15 can be a short-circuited end. Specifically, the third reference electrode 25 in the present embodiment is formed in an annular shape so as to surround the first resonance electrode 13 and the second resonance electrode 15, and the first resonance electrode 13 and the second resonance electrode 13 Are connected to one end of each resonance electrode 15.

  In addition, the filter device 1 according to the present embodiment includes a plurality of capacitance shortening electrodes 29 connected to the open ends of the first resonance electrode 13 and the second resonance electrode 15 via via electrodes 27. By providing such a capacity shortening electrode 29, the electrostatic capacity with the third reference electrode 25 can be increased. Therefore, since the length of the resonance electrode can be shortened, the filter device 1 can be reduced in size. In addition, as the capacity shortening electrode 29, it is preferable to use a member having good conductivity, like the first reference electrode 9.

  The filter device 1 according to the present embodiment includes an input terminal 17 for inputting a signal to the first resonance electrode 13. Specifically, the input terminal 17 in the present embodiment includes a portion facing the first resonance electrode 13 through the dielectric layer 3 (hereinafter referred to as the first input terminal 17 a), and the dielectric layer 3. And a portion facing the capacitor shortening electrode 29 (hereinafter, referred to as a second input terminal 17b). In this way, by inputting a signal from the outside to the first resonance electrode 13 via the input terminal 17, it is possible to extract the frequency component of the pass band.

  The filter device 1 according to the present embodiment has a first input terminal 17 a that faces the first resonance electrode 13 with the dielectric layer 3 interposed therebetween. As a result, the input terminal 17 and the first resonance electrode 13 can be capacitively coupled, so that signal attenuation due to λ / 2 resonance associated with this coupling can be caused. In addition, since the second input terminal 17b is provided, the coupling between the input terminal 17 and the first resonance electrode 13 can be further increased. Therefore, the loss of the input signal can be reduced. Note that, as the input terminal 17, it is preferable to use a member having good conductivity, like the first reference electrode 9.

  The filter device 1 according to the present embodiment includes an output terminal 19 for outputting a signal from the second resonance electrode 15. Specifically, the output terminal 19 in the present embodiment includes a portion facing the second resonance electrode 15 through the dielectric layer 3 (hereinafter referred to as the first output terminal 19a), and the dielectric layer 3 as shown in FIG. And a portion facing the capacitor shortening electrode 29 (hereinafter, referred to as a second output terminal 19b). Thus, by outputting a signal from the second resonance electrode 15 to the outside via the output terminal 19, the frequency component of the pass band can be extracted.

  The filter device 1 according to the present embodiment has a first output terminal 19 a that faces the second resonance electrode 15 with the dielectric layer 3 interposed therebetween. As a result, the output terminal 19 and the second resonance electrode 15 can be capacitively coupled, so that signal attenuation due to λ / 2 resonance associated with this coupling can be caused. In addition, since the second output terminal 19b is provided, the coupling between the output terminal 19 and the second resonance electrode 15 can be further increased. Therefore, the loss of the input signal can be reduced. As the output terminal 19, it is preferable to use a member having good conductivity, like the first reference electrode 9.

  The filter device 1 according to the present embodiment is disposed on the back surface of the first dielectric layer 5 and is electrically connected to the short-circuit end of the first resonance electrode 13 and the short-circuit end of the second resonance electrode 15, respectively. A connected coupling electrode 21 is provided. By providing such a coupling electrode 21, not only capacitive coupling but also inductive coupling can be generated between the first resonant electrode 13 and the second resonant electrode 15. Thereby, the signal in the frequency band near the predetermined pass band can be attenuated sharply. As the coupling electrode 21, it is preferable to use a member having good conductivity, like the first reference electrode 9.

  The filter device 1 according to the present embodiment is located on the back side of the multilayer body 7 with respect to the coupling electrode 21, and the short-circuit end of the first resonance electrode 13 and the short-circuit end of the second resonance electrode 15 in the coupling electrode 21. And a capacitive electrode 23 that is electrically connected to the central portion of the coupling path and is capacitively coupled to the second reference electrode 11. As described above, the capacitive electrode 23 that is capacitively coupled to the second reference electrode 11 is provided, and the capacitive electrode 23 is electrically connected to the central portion of the coupling path in the coupling electrode 21. Since the capacitive coupling with the two reference electrodes 11 can be increased, the resonance frequency due to the λ / 2 resonance in the coupling electrode 21 can be shifted to the low frequency side. As a result, the influence of λ / 2 resonance by the coupling electrode 21 can be reduced without reducing the coupling itself between the resonance electrodes by the coupling electrode 21. That is, the signal in the frequency band excluding the predetermined pass band can be greatly attenuated while the signal in the frequency band near the predetermined pass band is sharply attenuated.

  At this time, the capacitive electrode 23 is preferably opposed to the coupling electrode 21 with the dielectric layer 3 interposed therebetween. In particular, when the coupling electrode 21 and the capacitive electrode 23 are viewed in plan, it is more preferable that the entire capacitive electrode 23 is positioned below the coupling electrode 21. As a result, it is possible to reduce the possibility that the capacitive electrode 23 and the first resonant electrode 13 and the second resonant electrode 15 are directly capacitively coupled, thereby suppressing signal attenuation in a predetermined pass band. Because you can.

  Note that the capacitor electrode 23 in the present embodiment is connected to the coupling electrode 21 via the via electrode 27. In addition, as the capacitor electrode 23, it is preferable to use a member having good conductivity, like the first reference electrode 9.

  Next, the high frequency module 31 and the wireless communication device 39 of the present invention will be described below.

  As shown in FIG. 3, the high-frequency module 31 of the present embodiment is disposed on the filter device 1 and the second end side (upper surface side in FIG. 3) of the filter device 1, and via the bumps 33. The integrated circuit 35 electrically connected to the filter device 1 and the first end portion side (the lower surface side in FIG. 3) of the filter device 1 are electrically connected to the filter device 1 via the bumps 33. And a printed circuit board 37 connected to the.

  The wireless communication device 39 according to this embodiment includes the high-frequency module 31, the baseband unit 41 electrically connected to the filter device 1 through the printed circuit board 37, and the filter device 1 through the printed circuit board 37. And an antenna 43 electrically connected to the antenna.

  According to the high-frequency module 31 and the wireless communication device 39 of the present embodiment, the short-circuit end of the first resonance electrode 13 and the second resonance electrode in the coupling electrode 21 are located on the back side of the multilayer body 7 with respect to the coupling electrode 21. The capacitor electrode 23 is further connected to the central portion of the coupling path with the 15 short-circuit ends and is capacitively coupled to the second reference electrode 11. Therefore, since the resonance frequency of λ / 2 resonance at the input / output terminal 19 and the resonance frequency of λ / 2 resonance at the coupling electrode 21 can be brought close to each other, the signal in the frequency band excluding a predetermined pass band is further attenuated. be able to. Thereby, since the signal component which becomes noise outside the pass band can be reduced, the high-performance high-frequency module 31 and the wireless communication device 39 with high reception sensitivity can be obtained.

  In the present embodiment, the integrated circuit 35 is disposed on the second end side of the filter device 1 and is electrically connected to the filter device 1 via the bumps 33. The printed circuit board 37 is disposed on the first end side of the filter device 1 and is electrically connected to the filter device 1 via the bumps 33. Here, using the substrate in which the filter device 1 is built, the integrated circuit 35 is disposed on the second end side of the substrate and electrically connected to the substrate via the bumps 33, and the printed circuit board 37 is You may arrange | position to the 1st edge part side of a base | substrate, and may electrically connect with a base | substrate via the bump 33. FIG.

  The transmission characteristics of the filter device 1 according to the embodiment shown in FIG. 1 were calculated by electromagnetic field simulation. As a comparative example, the filter device 1 having a structure excluding the capacitor electrode 23 in the above embodiment was used.

  A laminated body 7 was formed by laminating the dielectric layers 3 having thicknesses of 0.3 mm, 0.05 mm, 0.05 mm, 0.05 mm, 0.25 mm, and 0.1 mm, respectively, from the first reference electrode side. . As a plurality of resonance electrodes including the first resonance electrode 13 and the second resonance electrode 15, four resonances each having a length of 3.35 mm and a width of 0.4 mm (hereinafter referred to as length × width). An electrode was used. These resonant electrodes were arranged in an interdigital type.

  As the capacity shortening electrodes 29 electrically connected to the open ends of the plurality of resonance electrodes, an electrode portion of 0.35 mm × 0.45 mm and 0.5 mm × 0. A convex shape formed from a 2 mm connecting portion was used. The electrode portion is positioned so as to face the third reference electrode 25 through the dielectric layer 3 when the capacity shortening electrode 29 is viewed in plan.

  The first input terminal 17a and the first output terminal 19a were 2.95 × 0.3 mm. Further, the second input terminal 17b and the second output terminal 19b were set to 1.2 × 0.3 mm. At this time, the second input terminal 17b and the second output terminal 19b were arranged so as to face the shortened capacitance electrode 29 connected to the first resonance electrode 13 and the second resonance electrode 15, respectively.

  The coupling electrode 21 had a width of 0.1 mm. In addition, the coupling electrode 21 is arranged in a crank shape so that a part thereof is provided side by side with the first resonance electrode 13 and the second resonance electrode 15 via the dielectric layer 3, and at the center of the coupling electrode. Arranged to be point targets. The capacitive electrode 23 was an electrode having a size of 0.2 mm × 0.2 mm. Further, it is electrically connected to the central portion of the coupling electrode 21.

  FIG. 4 shows filter characteristics of the filter device 1 according to this example and the filter device 1 according to the comparative example. 4A and 4B, the horizontal axis represents frequency [Hz], and the vertical axis represents insertion loss (unit: dB).

  As shown in FIG. 4B, in the filter device 1 according to the comparative example, the resonance frequency at λ / 2 resonance A caused by the coupling electrode 21 and the resonance frequency at λ / 2 resonance B caused by the input / output terminal 19 Therefore, the influence of λ / 2 resonance caused by the coupling electrode 21 is greatly shown.

  On the other hand, as shown in FIG. 4A, in the filter device 1 according to the present embodiment, the resonance frequency in λ / 2 resonance caused by the coupling electrode 21 is shifted to the low frequency side and caused by the input / output terminal 19. This cancels out the λ / 2 resonance. Therefore, it can be seen that the influence of the λ / 2 resonance caused by the coupling electrode 21 is suppressed, and the signal in the frequency band excluding the predetermined pass band is further attenuated.

DESCRIPTION OF SYMBOLS 1 ... Filter apparatus 3 ... Dielectric layer 5 ... 1st dielectric layer 7 ... Laminated body 9 ... 1st reference electrode 11 ... 2nd reference electrode 13 ... First resonant electrode 15 ... second resonant electrode 17 ... input terminal 17a ... first input terminal 17b ... second input terminal 19 ... output terminal 19a ... first 1 output terminal 19b 2nd output terminal 21 coupling electrode 23 capacitance electrode 25 third reference electrode 27 via electrode 29 capacitance shortening electrode 31 High frequency module 33 ... Bump 35 ... Integrated circuit 37 ... Printed circuit board 39 ... Wireless communication equipment 41 ... Baseband part 43 ... Antenna

Claims (6)

A laminate formed by laminating a plurality of dielectric layers;
A reference electrode disposed on one end face of the laminate,
A first resonance electrode and a second resonance electrode provided on the main surface of the dielectric layer, each having one end portion being a short-circuit end and the other end portion being an open end;
A coupling device electrically connected to the short-circuit end of the first resonance electrode and the short-circuit end of the second resonance electrode, respectively,
The reference electrode is located on the reference electrode side of the coupling electrode and is electrically connected to a coupling path between the short-circuited end of the first resonance electrode and the short-circuited end of the second resonance electrode in the coupling electrode, A filter device further comprising a capacitive electrode that is capacitively coupled to the filter device.   The filter device according to claim 1, wherein the capacitive electrode is electrically connected to the coupling electrode at a central portion of the coupling path.   The filter device according to claim 1, wherein the capacitive electrode is opposed to the coupling electrode with the dielectric layer interposed therebetween.   4. The filter device according to claim 3, wherein when the coupling electrode and the capacitive electrode are viewed in plan, the entire capacitive electrode is positioned below the coupling electrode. 5.   The filter device according to claim 1, a first bump disposed on a main surface of the filter device, an integrated circuit electrically connected to the filter device through the first bump, A wireless communication module, comprising: a second bump disposed on a back surface of the filter device; and a printed circuit board electrically connected to the filter device through the second bump. A wireless communication module according to claim 5, a baseband unit electrically connected to the printed circuit board in the wireless communication module, and an antenna electrically connected to the printed circuit board in the wireless communication module. A wireless communication device characterized by that.

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