WO2006025312A1 - 無線通信モジュール及び無線通信装置 - Google Patents
無線通信モジュール及び無線通信装置 Download PDFInfo
- Publication number
- WO2006025312A1 WO2006025312A1 PCT/JP2005/015642 JP2005015642W WO2006025312A1 WO 2006025312 A1 WO2006025312 A1 WO 2006025312A1 JP 2005015642 W JP2005015642 W JP 2005015642W WO 2006025312 A1 WO2006025312 A1 WO 2006025312A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless communication
- circuit
- loading
- antenna
- communication module
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0025—Modular arrays
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
Definitions
- Wireless communication module and wireless communication device are wireless communication module and wireless communication device
- the present invention relates to a radio communication module and a radio communication apparatus equipped with an inverted F loading antenna for performing radio communication.
- Patent Document 1 Conventionally, a technique described in Patent Document 1 has been known as a wireless communication apparatus that achieves downsizing of a housing and prevents a gain from being reduced. In this wireless communication device, gain is improved by installing two antennas in the housing.
- Patent Document 1 Japanese Patent No. 3275632
- the present invention has been made in view of the above circumstances, and its purpose is to handle a wireless communication module that is convenient to handle without having to adjust the position of the antenna to improve communication quality! And providing a wireless communication device.
- the invention according to claim 1 is a wireless communication module that performs wireless transmission / reception using a loading inverted F antenna mounted on a first substrate, wherein radio waves are transmitted by the loading inverted F antenna.
- the radio wave wavelength used for wireless communication is measured (m)
- the frequency is f (Hz)
- the speed of light is (11173)
- the coefficient & 70 to 130 Of the loading inverted F antenna
- the wireless communication module is characterized by being mounted above.
- the invention according to claim 2 is the distance between the loading unit of the loading inverse F antenna and the wireless communication circuit when performing wireless communication using a frequency of 408.5 MHz to 451.5 MHz.
- the invention according to claim 3 is that when performing wireless communication using a frequency of 2.4 GHz to 2.5 GHz, the loading unit of the loading inverse F antenna, the wireless communication circuit, and 2.
- the invention according to claim 4 is an insulating material for ensuring a distance between the loading portion of the loading inverted F antenna and the radio communication circuit in a direction orthogonal to a longitudinal direction of the loading portion.
- the invention according to claim 5 is a wireless communication device mounted on a second substrate, wherein the wireless communication module according to any one of claims 1 to 4,
- a wireless communication apparatus wherein a circuit that is not included in the wireless communication circuit among the control circuit, the modulation / demodulation circuit, the frequency conversion circuit, and the interface circuit is mounted on the second substrate. is there.
- the invention according to claim 6 is a wireless communication device attached to a device under test, the wireless communication module according to any one of claims 1 to 4, the control circuit, Among the modulation / demodulation circuit, the frequency conversion circuit, and the interface circuit, a circuit that is included in the wireless communication circuit and a sensor that transmits information on the object to be measured from the wireless communication module.
- the wavelength of the radio wave used for wireless communication is (m)
- the frequency is f (Hz)
- the speed of light is c (11173)
- the coefficient & 70 to 130
- the wireless communication circuit is arranged at a distance of 10 mm or more in a direction orthogonal to the longitudinal direction of the loading portion of the loading inverted F antenna. Therefore, good communication quality can be obtained when communication is performed using a frequency of 408.5 MHz to 451.5 MHz.
- the wireless communication circuit is arranged at a distance of 4 mm or more in the direction orthogonal to the longitudinal direction of the loading portion of the loading inverted F antenna. Therefore, good communication quality can be obtained when communication is performed using a frequency of 2.4 GHz to 2.5 GHz.
- the wireless communication module of claim 4 a case is provided around the wireless communication module so as to ensure a predetermined distance in the radial direction of the loading portion of the loading inverted F antenna. . Therefore, it becomes possible to prevent a conductor or a dielectric from entering within the predetermined distance, and a stable communication quality can be always obtained.
- stable communication quality can be obtained without adjusting the position of the loading inverted F antenna. Therefore, a user who uses the wireless communication device can manufacture a wireless communication device with good communication quality without considering the arrangement of the wireless communication module and other circuits.
- a sensor for transmitting information on the object to be measured is provided, and the distance between the object to be measured and the loading unit is set in a direction perpendicular to the longitudinal direction of the loading unit.
- ⁇ ⁇ X ((fZc))
- the distance x (m) is greater than Za. Yo Therefore, even when the object to be measured is constituted by a metal case, information on the object to be measured measured by the sensor can be transmitted without being affected by electromagnetic effects.
- FIG. 1 is a plan view of a wireless communication module 30 according to the present embodiment.
- FIG. 2 is a block diagram showing a general configuration of radio communication apparatus 20.
- FIG. 3 is a diagram showing a configuration of an antenna circuit 1 according to an embodiment of the present invention.
- FIG. 4 is a diagram showing a configuration of an antenna circuit 1 in which a loading inverted F antenna is mounted.
- FIG. 5 is a cross-sectional view of the wireless communication module 30 according to the present embodiment.
- FIG. 6 is a graph showing the relationship between the distance L7 between the loading unit 6 and the wireless communication circuit 14, the average gain, and the bandwidth.
- FIG. 7 is a plan view showing a state where the wireless communication module 30 is mounted on the substrate bl of the wireless communication device 14.
- FIG. 8 is a cross-sectional view showing a configuration example of a wireless communication device 20 according to the present embodiment.
- FIG. 2 is a block diagram illustrating a general configuration of the wireless communication device 20 that performs wireless communication.
- an antenna circuit 1 a frequency conversion circuit 2, a modulation / demodulation circuit 3, a control circuit 4, and an interface circuit 5 are mounted on a substrate bl.
- the antenna circuit 1 is a loading inverted F antenna and is used when transmitting or receiving data wirelessly.
- the configuration of the antenna circuit 1 used in this embodiment will be specifically described later with reference to FIG.
- the frequency conversion circuit 2 converts the signal output from the antenna circuit 1 from a high frequency signal to a low frequency signal.
- the modulation / demodulation circuit 3 the signal converted from the high frequency to the low frequency by the frequency conversion circuit 2 is demodulated.
- the interface circuit 5 the signal demodulated by the modem circuit 3 is converted into data and output to the outside.
- the control circuit 4 controls the frequency conversion circuit 2, the modulation / demodulation circuit 3, the interface circuit 5, and the like.
- the reverse process of receiving radio waves is performed. That is, data input to the wireless communication device 20 is transmitted from the antenna circuit 1 to the outside via the interface circuit 5, the modulation / demodulation circuit 3, and the frequency conversion circuit 2.
- FIG. 3 (a) is a plan view of the antenna circuit 1
- FIG. 3 (b) is an exploded perspective view of the antenna circuit 1.
- FIG. 1 a case where a loading inverted F antenna is mounted on the antenna circuit 1 will be described.
- the antenna circuit 1 includes a substrate b2 that also has an insulating material force such as grease, a loading portion 6, an inductor portion 7, and a capacitor portion disposed on one surface of the substrate b2. 8 and a power supply point P connected to a frequency conversion circuit 2 (see Fig. 2) mounted outside the antenna circuit 1.
- the loading portion 6 is configured by forming the conductor pattern 6b in a spiral shape in the longitudinal direction D1 of the surface of a rectangular parallelepiped element 6a having a dielectric material force such as alumina, for example.
- both ends of this conductor pattern 6b are connections provided on the back surface of the element body 6a so as to be electrically connected to rectangular installation conductors 9a and 9b (Fig. 3 (b)) provided on the surface of the substrate b2.
- the electrodes are connected to the electrodes 10a and 10b (FIG. 3 (b)), respectively.
- one end of the conductor pattern 6b is electrically connected to the inductor section 7 and the capacitor section 8 via the installation conductor 9b, and the other end is an open end.
- the inductor unit 7 includes a chip inductor 7a, and one end of the chip inductor 7a is connected to the installation conductor 9b via a linear conductive pattern 11a provided on the surface of the substrate bl. The other end of the chip inductor 7a is connected to ground (not shown) via a linear conductive pattern l ib provided on the surface of the substrate b2.
- the conductor pattern 11a is formed so that the end side 12b is parallel to the longitudinal direction D1.
- the capacitor unit 8 includes a chip capacitor 8a, and one end of the chip capacitor 8a is connected to the installation conductor 9b via a linear conductor pattern 11c provided on the surface of the substrate bl. Further, the other end of the chip capacitor 8a is connected to the feeding point P through the linear conductor pattern 1 Id provided on the surface of the substrate b2.
- the capacitance of the chip capacitor 8a is adjusted so as to match the input impedance of the frequency conversion circuit 2 at the feeding point P.
- the following values are used as the dimensions L1 to L4. That is, the distance L1 between the loading portion 6 and one end 12a of the substrate bl was 10 mm.
- the length L2 of the loading portion 6 in the longitudinal direction D1 was 16 mm.
- the dimension of the end 12b of the conductor pattern 11a in the portion parallel to the longitudinal direction D1 was set to 2.5 mm.
- the physical length L4 of the antenna element parallel to one end 12a of the substrate b 1 is set to 18.5 mm.
- the radio communication module 30 is modularized by mounting the antenna circuit 1 (FIG. 2) and the radio communication circuit 14 on the substrate b2.
- the wireless communication circuit 14 is a circuit configured by a frequency conversion circuit 2 that performs frequency conversion.
- the wireless communication circuit 14 can be configured by at least one circuit of the frequency conversion circuit 2, the modulation / demodulation circuit 3, the control circuit 4, and the interface circuit 5.
- the wireless communication circuit 14 can be configured by at least one circuit of the frequency conversion circuit 2, the modulation / demodulation circuit 3, the control circuit 4, and the interface circuit 5.
- the modulation / demodulation circuit 3, and the control circuit 4 circuits that are not included in the wireless communication circuit 14 are separately mounted on a substrate on which the wireless communication module 30 is mounted.
- FIG. 5 (a) is a cross-sectional view of the wireless communication module 30 (FIG. 4) according to the present embodiment.
- FIG. 5 (a) shows a state where the wireless communication module 30 is mounted on the substrate bl of the wireless communication device 20.
- the periphery of the wireless communication module 30 is covered with an insulating case 13.
- the loading part 6 of the antenna circuit 1 is mounted on the board b2 installed in the case 13.
- the wiring 15 connected to the frequency conversion circuit 2 and the like mounted on the substrate b2 is drawn out.
- the distances L5 and L6 from the loading portion 6 to the upper and lower surfaces of the case 13 are preferably separated by a predetermined distance from each other in order to prevent deterioration in communication quality. For example, it is desirable to use a value of 10 mm or more as the distances L5 and L6.
- a predetermined region can be secured in the vertical direction perpendicular to the substrate b2, so that a conductor or a dielectric is placed in the loading unit 6. It can prevent approaching. Therefore, it is possible to prevent the communication quality of the wireless communication module 30 from deteriorating.
- the antenna circuit 1 and the frequency conversion circuit 2 mounted in the case 13 can be protected from an external impact cover.
- the case 13 may not be provided as long as it is possible to prevent the conductor or dielectric from approaching the vicinity of the loading portion 6 by any method.
- FIG.5 (b) if a stopper 16 is formed on the wiring 15 drawn from the board bl and a distance L6 is secured between the loading unit 6 and the board bl of the wireless communication device 20, On board bl The influence from other mounted circuits can be shielded.
- the wireless communication module 30 shown in FIG. 1 was used.
- the antenna circuit 1 constituted by the loading unit 6 and the like and the wireless communication circuit 14 are mounted on the substrate b2.
- the wireless communication circuit 14 composed of a conductor, a dielectric, or the like has the greatest influence on the communication quality. Therefore, an experiment was conducted on how the communication quality fluctuates according to the distance L7 between the loading unit 6 and the wireless communication circuit 14.
- FIG. 4 is a graph showing how the communication quality fluctuates according to the distance L7 (FIG. 1) between the loading unit 6 and the wireless communication circuit 14;
- Figure 6 (a) is a graph showing the relationship between the distance L7 and the average gain of vertical polarization in the XY plane. As the distance L7 is increased from 5mm to 15mm, the average gain improves. In particular, when the distance L7 is around 10 mm, the change in average gain is small and stable.
- the distance L7 is 10mn! ⁇ 12 In the vicinity of 5 mm, the change in average gain is small and stable.
- the distance L 7 between the loading part 6 of the antenna circuit 1 and the wireless communication circuit 14 can be stabilized by separating 10 mm or more. Wireless communication was possible while maintaining the communication quality.
- the distance L7 between the loading unit 6 and the wireless communication circuit 14 was 4 mm or more, and the wireless communication was maintained while maintaining stable communication quality. I was able to communicate.
- the wireless communication module 30 according to the present embodiment is used, as shown in FIGS. 7A and 7B, the position where the wireless communication module 30 is mounted on the substrate bl and the shape of the substrate bl are determined. Nevertheless, wireless communication can be performed with good communication quality.
- the interface circuit 5 including conductors and dielectrics is arranged at a predetermined distance in the radial direction of the loading portion 6 of the antenna circuit 1, it is possible to always perform stable communication without being affected by them. Is possible.
- the loading unit 6 is mounted on the substrate b2, and the other frequency conversion circuit 2 and the like are mounted on the substrate bl. It is not limited to such a configuration.
- a wireless communication device 20 can be configured.
- the wireless communication device 20 is attached to a device or the like that is an object to be measured covered with a metal case 17, measures the temperature of the device, and transmits the temperature information and the like by wireless communication.
- the frequency converter 2, modulator / demodulator 3, control circuit 4, and interface circuit 5 (not shown) are mounted on the board b2 built in the case 13 of the wireless communication device 20. Is done.
- the loading section 6 of the antenna circuit 1 includes the frequency conversion circuit 2, the modulation / demodulation circuit 3, the control circuit 4, the interface circuit 5, and the object to be measured (here, the metal case 17). It is mounted on the substrate b2 with a distance L6 apart in a direction perpendicular to.
- the wireless communication module of the present invention can be mounted inside a portable terminal that requires downsizing and requires good communication quality.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05780834A EP1801987A4 (en) | 2004-08-30 | 2005-08-29 | RADIO COMMUNICATION MODULE AND RADIO COMMUNICATION DEVICE |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-249977 | 2004-08-30 | ||
JP2004249977 | 2004-08-30 | ||
JP2005233406A JP2006101486A (ja) | 2004-08-30 | 2005-08-11 | 無線通信モジュール及び無線通信装置 |
JP2005-233406 | 2005-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006025312A1 true WO2006025312A1 (ja) | 2006-03-09 |
Family
ID=35999966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015642 WO2006025312A1 (ja) | 2004-08-30 | 2005-08-29 | 無線通信モジュール及び無線通信装置 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1801987A4 (ja) |
JP (1) | JP2006101486A (ja) |
KR (1) | KR20070038175A (ja) |
WO (1) | WO2006025312A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011024280A1 (ja) | 2009-08-27 | 2011-03-03 | 株式会社 東芝 | アンテナ装置及び通信装置 |
JP5625829B2 (ja) | 2010-11-30 | 2014-11-19 | 三菱マテリアル株式会社 | アンテナ装置 |
JP5060629B1 (ja) | 2011-03-30 | 2012-10-31 | 株式会社東芝 | アンテナ装置とこのアンテナ装置を備えた電子機器 |
JP5127966B1 (ja) | 2011-08-30 | 2013-01-23 | 株式会社東芝 | アンテナ装置とこのアンテナ装置を備えた電子機器 |
JP5162012B1 (ja) | 2011-08-31 | 2013-03-13 | 株式会社東芝 | アンテナ装置とこのアンテナ装置を備えた電子機器 |
KR101874892B1 (ko) | 2012-01-13 | 2018-07-05 | 삼성전자 주식회사 | 소형 안테나 장치 및 그 제어방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003085523A (ja) * | 2001-09-13 | 2003-03-20 | Murata Mfg Co Ltd | カードタイプ無線通信端末装置 |
JP2003101335A (ja) * | 2001-09-25 | 2003-04-04 | Matsushita Electric Ind Co Ltd | アンテナ装置およびそれを用いた通信機器 |
JP2004120519A (ja) * | 2002-09-27 | 2004-04-15 | Matsushita Electric Ind Co Ltd | 携帯無線機用アンテナ |
JP2004159287A (ja) * | 2002-09-11 | 2004-06-03 | Seiko Epson Corp | アンテナ装置、プリント基板、通信アダプタおよび携帯型電子機器 |
JP2004215149A (ja) * | 2003-01-08 | 2004-07-29 | Matsushita Electric Ind Co Ltd | アンテナ |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002232221A (ja) * | 2001-01-30 | 2002-08-16 | Alps Electric Co Ltd | 送受信ユニット |
US6618014B2 (en) * | 2001-09-28 | 2003-09-09 | Centurion Wireless Tech., Inc. | Integral antenna and radio system |
-
2005
- 2005-08-11 JP JP2005233406A patent/JP2006101486A/ja not_active Withdrawn
- 2005-08-29 KR KR1020077005386A patent/KR20070038175A/ko not_active Application Discontinuation
- 2005-08-29 EP EP05780834A patent/EP1801987A4/en not_active Withdrawn
- 2005-08-29 WO PCT/JP2005/015642 patent/WO2006025312A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003085523A (ja) * | 2001-09-13 | 2003-03-20 | Murata Mfg Co Ltd | カードタイプ無線通信端末装置 |
JP2003101335A (ja) * | 2001-09-25 | 2003-04-04 | Matsushita Electric Ind Co Ltd | アンテナ装置およびそれを用いた通信機器 |
JP2004159287A (ja) * | 2002-09-11 | 2004-06-03 | Seiko Epson Corp | アンテナ装置、プリント基板、通信アダプタおよび携帯型電子機器 |
JP2004120519A (ja) * | 2002-09-27 | 2004-04-15 | Matsushita Electric Ind Co Ltd | 携帯無線機用アンテナ |
JP2004215149A (ja) * | 2003-01-08 | 2004-07-29 | Matsushita Electric Ind Co Ltd | アンテナ |
Non-Patent Citations (1)
Title |
---|
See also references of EP1801987A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1801987A4 (en) | 2007-10-03 |
KR20070038175A (ko) | 2007-04-09 |
EP1801987A1 (en) | 2007-06-27 |
JP2006101486A (ja) | 2006-04-13 |
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