WO1996023327A1 - Dispositif portatif de telecommunication a appareil a antenne assurant la protection contre les rayonnements - Google Patents

Dispositif portatif de telecommunication a appareil a antenne assurant la protection contre les rayonnements Download PDF

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Publication number
WO1996023327A1
WO1996023327A1 PCT/CN1996/000007 CN9600007W WO9623327A1 WO 1996023327 A1 WO1996023327 A1 WO 1996023327A1 CN 9600007 W CN9600007 W CN 9600007W WO 9623327 A1 WO9623327 A1 WO 9623327A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
radiation
hand
radiation shielding
antenna apparatus
Prior art date
Application number
PCT/CN1996/000007
Other languages
English (en)
French (fr)
Inventor
Lei Wang
Wei Wang
Original Assignee
Lei Wang
Wei Wang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lei Wang, Wei Wang filed Critical Lei Wang
Priority to US08/894,169 priority Critical patent/US5940039A/en
Priority to KR1019970705128A priority patent/KR100297225B1/ko
Priority to DK96901214T priority patent/DK0806809T3/da
Priority to EP96901214A priority patent/EP0806809B1/en
Priority to DE69608540T priority patent/DE69608540T2/de
Priority to AU45337/96A priority patent/AU4533796A/en
Priority to JP52252996A priority patent/JP3242926B2/ja
Publication of WO1996023327A1 publication Critical patent/WO1996023327A1/zh
Priority to FI973109A priority patent/FI973109A/fi

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/084—Pivotable antennas
    • 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
    • H01Q1/244—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 extendable from a housing along a given path
    • 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
    • H01Q1/245—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 means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • 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

Definitions

  • the present invention relates to a handheld communication device with a ⁇ radiation antenna device, and in particular to changing an upright antenna of a handheld communication device, such as a handheld phone, a walkie-talkie, a cordless phone, etc., to a direction away from a human body and tilted to a horizontal direction ( That is, leaning towards the back of the body of the handheld phone), so that the head of the person is in a safe area formed by the new polarization mode, so that the electromagnetic radiation suffered by the person's head is reduced to within the safety standards.
  • a handheld communication device such as a handheld phone, a walkie-talkie, a cordless phone, etc.
  • handheld communication devices are more and more popular for their advantages such as not being restricted by telephone lines, being easy to carry, and being connected quickly.
  • the radiation pollution caused by handheld communication devices to users cannot be ignored.
  • a user speaks the sound wave is converted into a high-frequency electromagnetic wave by a hand-held phone and transmitted as an electrical signal.
  • a strong high-frequency microwave radiation will be generated near the antenna of the mobile phone.
  • This strong high-frequency sign wave radiation may reach human brain damage and lesions.
  • Figure 1 shows the electromagnetic radiation pattern of the antenna of a conventional hand-held phone. This example is used to illustrate the radiation pollution of the head of a person by the hand-held phone.
  • the antennas of the existing hand-held telephones are generally divided into: ordinary rod antennas, which are generally used in microwave bands and short-wavelength communication equipment; and induction rod antennas, which can be used in wide-frequency communication equipment, and the antenna length can be limited by inductance.
  • the purpose is to reduce the length of the antenna for easy portability; pure electric confused antenna for small and micro communication equipment, mainly to reduce the size of the antenna, easy to carry; magnetic induction antenna for single-section rod-type handsets, its knots Easy to carry and use.
  • the above four types of antennas emit electromagnetic waves all around, as shown in Figure 1, so they will generate a radiating wave to the user.
  • the shorter the antenna the greater the transmission power density and the radiation to the human head.
  • the environmental electromagnetic wave emission safety and health standards of the Ministry of Health of China clearly stipulate that 40 watts per square centimeter is a 2% health standard. Exceeding this standard will adversely affect the human body.
  • the transmission power is 0.6 W
  • the electromagnetic permissible density around the antenna is 1100 microwatts to 2800 watts per square meter. Disclosure of the present invention
  • the object of the present invention is to provide a handheld communication device with a chirped radiating antenna device to overcome the above drawbacks.
  • the human head is in a safe area formed by the new polarization method, so that the electromagnetic radiation suffered by the human head is minimized, reaching the People's Republic of China Safety standards set by the Ministry of Health.
  • the handheld communication device with an anti-radiation antenna device of the present invention is composed of a handset body and an antenna device, wherein the antenna device is an antenna rod and an anti-radiation device located at the root of the antenna rod.
  • FIG. 1 is a schematic diagram of the antenna polarization mode when using a conventional handheld telephone
  • the antenna device of the present invention is sleepy
  • Sleepy 3 indicates the sleepy state of the handheld telephone in the present invention
  • Sleepy 4 illustrates the principle of the polarization mode of the antenna device of the present invention.
  • FIG. 2A and 2B show a detailed structure of the antenna device of the present invention, and ⁇ 3 is a portable telephone equipped with the antenna device of the present invention.
  • 2A illustrates that the antenna is in an upright state
  • FIG. 2B illustrates that the antenna is perpendicular to the fuselage when the handset is in use.
  • the antenna device of the present invention is composed of an antenna rod 2 and an antenna base 3.
  • the base 3 further includes an inductance wire cluster 5, an inductance wire surrounding fixing frame 6, an anti-radiation cover 7 and a base shell 8.
  • the bottom end of the antenna may be provided with a spherical joint 9 or the like, so that the antenna 2 passes from the phone body 1 After the sleeve 4 is completely stretched out, it can tilt towards the back of the fuselage until it is perpendicular to the fuselage.
  • a yellow metal sheet 10 is provided on the upper end of the inductor wire 5 and is closely matched with the antenna 2 as a signal source of the antenna.
  • the wire frame 5 is die-cast in the inductance wire frame fixing frame 6.
  • a plug 10 is provided at the bottom end of the fixing frame 6 and cooperates with the antenna socket of the portable telephone 1 to mount the antenna device on the body.
  • the ⁇ radiation hood 7 is grounded. It is made of a metal material. It covers the inductor coil fixing frame 6 to shield it, prevent the electromagnetic leakage inside the inductor, and pass between the ⁇ radiation hood 7 and the inductor line ffi 5
  • the generated capacitive reactance changes the electromagnetic polarization mode, weakens the electromagnetic field of the headphone part of the hand-held telephone, and causes a persuasion rate to act on the antenna 2.
  • the base shell 8 is completely enclosed by the line enclosure 5, the fixing frame 6, the radiation shield 7 and the like.
  • the base casing 8 has a notch opening toward the back of the fuselage, and the width of the slot is equal to the diameter of the antenna, and is used for positioning the antenna when it is perpendicular to the fuselage, so that the antenna does not swing in the horizontal direction.
  • the user uses the handheld communication device of the present invention, he only needs to insert the plug 10 at the lower end of the inductive wire ffl fixing frame 6 into the antenna socket of the mobile phone, and make the slot of the antenna base shell face the back of the fuselage, and press the bayonet firmly Just inside the interface of the phone case.
  • the antenna is fully inserted into the antenna sleeve 4 of the mobile phone, the mobile phone is in a receiving state.
  • the antenna 2 can be fully extended out of the sleeve 4, as shown in FIG. 3, and it is best to tilt towards the back of the fuselage to be perpendicular to the fuselage.
  • the polarization mode of the antenna device of the present invention and the principle of reducing the radiation to the human head will be described below with reference to sleepy 2, 3, and 4.
  • the basic principle of the invention is to change the polarization mode of the antenna.
  • the new polarization mode is to change the erected antenna to be inclined toward the back of the fuselage or perpendicular to the fuselage.
  • the communication equipment Antennas have different radiating capabilities in different directions, forming a weak field strength area at a certain position, called a safe area.
  • the purpose of radon radiation can be achieved, that is, the strong field is transferred away from the human head;
  • the relative position of the transmitting antenna is changed, combined with the electromagnetic screen principle, The user's head is protected from strong electromagnetic wave radiation.
  • the matching inductance of the antenna base is shielded by a grounded metal shell to prevent the leakage of electromagnetic waves and endanger the user's head.
  • a grounded metal shell to prevent the leakage of electromagnetic waves and endanger the user's head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Transceivers (AREA)
  • Aerials With Secondary Devices (AREA)

Description

带有防幅射天线装置
的手持通信设备 技术领域
本发明涉及一种带有昉幅射天线装置的手持通信设备，具体地 说，涉及将手持通信设备，例如手持电话、对讲机、无绳电话等的竖立 天线改为朝向远离人体方向倾斜至水平方向（即向手持电话机机身 背部倾斜），以使人的头部处于由新极化方式下所形成的安全区域 中，从而^人的头部所遭受到的电磁幅射减弱到安全标准以内。 现有技术
目前，手持通信设备以其不受电话线制约、便于携带、联糸迅速 等优点越来越受到人们的青睐，但是手持通信设备给使用者所带来 的幅射污染 是不能忽視的，以手持电话为例，当用户发话时，声波 被手持电话机转换成高頻电磁波以 电信号发射出去，这时手机天 线附近会产生较强烈的高頻微波幅射，如果人的头部长期頻繁地受 到此强高频徵波幅射便可能達成人脑受损、病变。
困 1示出了一种常规手持电话机天线的电磁幅射方向图，以此 为例来说明手持电话机对人的头部的幅射污染。
现有的手持电话机的天线一般分为：普通杆式天线，一般用于微 波段，波长较短的通讯设备；加感杆式天线，可用于頻率较宽的通信 设备，可由电感限制天线长度，目的是减少天线长度，以携带方便；纯 电惑式天线，用于小型及微型通信设备，主要是将天线缩小，携带方 便;磁感应式天线，用于单节拉杆式手持机，其结枸便于携带使用方 便。
以上四种天线其发射电磁波均向四周发射，如图 1所示，所以会 对使用者产生擻波福射，在同样功率条件下，天线越短发射功率密度 越大，对人头部的輻射也越严重，中国国家卫生部颂布的环境电磁波 糅射安全卫生标准明确規定，每平方厘米 40徵瓦为 2鈒卫生标准， 超过此标准会对人体产生不良影响。以手持电话为例，根据中国国家 计量院測试，在发射功率为 0. 6w时，其天线附近周围的电磁劝率密 度为 1100微瓦至 2800徵瓦每平方屋米。 本发明的公开
本发明的目的就是要提供一种带有昉幅射天线装置的手持通信 设备，以克服上述缺陷。 当使用配备本发明所述的通信设备时，人的 头部处于一个由新极化方式所形成的安全区内，从而使人的头部所 遭受的电磁幅射减到最小，达到中华人民共和国卫生部所制定的安 全标准。
本发明的目的是这样实现的：本发明的带有防幅射天线装置的 手持通信设备由手持机机身及天线装置构成，其中所述天线装置由 天线杆以及位于天线杆根部的防幅射革构成。 当用户使用所述手持 通信设备 ，将所述天线杆朝向手持通信设备机身背部倾斜，天线杆 与机身之夹角为 0。<θ 90。,较佳为 45。<θ 90。，最佳为 θ=90。，从而 利用天线与机身相对位置的改变以改变天线的极化方式，并利用昉 幅射罩所产生的电环屏蔌效果，可以在人的头部所处位置形成一个 安全区，以使人的头部所遭受的幅射减到最小。 对附困的 要说明
1为常規手持电话机使用时天线极化方式示意图；
困 2本发明天线装置结枸示意困；
困 3为本发明手持电话机使用状态示意困；
困 4说明本发明天线装置极化方式原理示意囷。 本发明的实施方案
为清楚起见，下面将以摩托罗拉 (Motorola)9900手持电话为例对 本发明的天线装置的结构及原理加以说明，但是熟悉本领域的技术 人员不难理解，本发明的结构和原理还可应用到其它手持通信设备 上。 图 2A和 2B示出了本发明天线装置的详细结构，圉 3为配备本 发明天线装置的手持电话机。其中困 2A说明天线为竖立状态，图 2B 说明手持机使用状态下，天线与机身相垂直，本发明的天线装置由天 线杆 2和天线底座 3枸成。 底座 3又包括有电感线團 5 ,电感线围固 定架 6，防幅射罩 7及底座外壳 8 ,天线的底端可带有一球形关节 9或 类似物，以使天线 2从电话机身 1的套筒 4完全拉伸出来后能够向 机身背后倾斜直至与机身垂直。电感线围 5的上端有一金属黄片 10， 它与天线 2接触性紧配合，作为天线的信号源。线围 5压铸在电感线 围固定架 6内。固定架 6的底端有一个插头 10,它与手持电话机 1的 天线插座相配合，以将天线装置装配到机身上。 昉幅射罩 7接地，它 由金属材料制成，它将电感线圈固定架 6罩住以起屏蔽作用，昉止电 感内电磁外泄，并且通过昉幅射罩 7与电感线 ffi 5之间产生的容抗， 改变电磁极化方式，使手持电话机耳机部位电磁场减弱，使有致劝率 作用于天线 2上。底座外壳 8 线围 5、固定架 6、防幅射罩 7等完全 包围住。底座外壳 8在朝向机身背部开有一槽口，开槽宽度等于天线 直径，用于天线与机身垂直时定位，使天线不在水平方向摆动。
当用户使用本发明的手持通信设备时，只须将电感线 ffl固定架 6 下端的插头 10插入到手机天线插座内，并使天线底座外壳开槽朝向 机身背部，并用力使卡口压入手机外壳接口内即可。天线完全插入手 机天线套筒 4内时，手机呈接收状态。 用户若须通话时，可将天线 2 从套筒 4中完全拉伸出来，如图 3所示，并向机身背部倾斜至与机身 垂直为最佳。
下面结合困 2 ,3 , 4来说明本发明天线装置的极化方式以及对人 的头部减小幅射的原理。
本发明的基本原理是改变天线的极化方式，新极化方式也就是 把竖立天线改变为朝向机身背部倾斜或与机身相垂直，结合天线根 部装备的昉輻射罩措施,使通信设备的天线在不同的方向辐射能力 不同，形成一定位置的弱场强区，称为安全区，在这个安全区内可以 达到昉辐射目的，也就是把强场转移至远离人体头部位置；因此可将 发射天线相对位置变换，再结合电磁屏敝原理，而在相应位草保护使 用者头部免遣强电磁波輻射。如困 4所示，将天线底座匹配电感由一 接地的金属外壳屏蔽，以昉止电磁波外泄危及使用者头部安全，这 样，除能使天线电磁方向（如困所示）改变以外，还能通过昉輻射罩与 电感之间的容抗形成合理的阻抗匹配，使貼近头部的耳机部位形成 安全区，达到防輻射目的。
尽管为了提供示例，公开了本发明的优选实^方案，但本领域普 通技术人员应理解，在不脫离本发明所附权利要求的范围和精神基 础上的各种改型、替代、添加都是可能的。

Claims

权利要求
1. 一种带有防幅射天线的手持通信设备，包括手持机机身及天 线装置，其特征在于所述天线装置包括一个天线杆以及位于天线杆 根部的防幅射罩，在使用状态下，天线杆应朝向手持通信设备机身背 部倾斜，天线杆与机身之夹角为 0。<θ 90。，以使天线的极化方式发 生变化，从而使人头处于新极化方式下形成的幅射安全区内。
2. 根据权利要求 1所述的手持通信设备，其特征在于所述天线 杆与机身之夹角为 45。«90。。
3- 根据权利要求 1所述的手持通信设备，其特征在于所述天线 杆与机身之夹角为 e=90°。
PCT/CN1996/000007 1995-01-28 1996-01-26 Dispositif portatif de telecommunication a appareil a antenne assurant la protection contre les rayonnements WO1996023327A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US08/894,169 US5940039A (en) 1995-01-28 1996-01-26 Hand-held communication equipment with a radiation shielding antenna apparatus
KR1019970705128A KR100297225B1 (ko) 1995-01-28 1996-01-26 방사차폐안테나장치를가진휴대용통신장치
DK96901214T DK0806809T3 (da) 1995-01-28 1996-01-26 Håndholdt kommunikationsudstyr med en strålingsbeskyttende antenneindretning
EP96901214A EP0806809B1 (en) 1995-01-28 1996-01-26 Hand-held communication equipment with a radiation shielding antenna apparatus
DE69608540T DE69608540T2 (de) 1995-01-28 1996-01-26 Tragbares funkgerät mit einer strahlungsabschirmrnden antennenvorrichtung
AU45337/96A AU4533796A (en) 1995-01-28 1996-01-26 Hand-held communication equipment with a radiation shielding antenna apparatus
JP52252996A JP3242926B2 (ja) 1995-01-28 1996-01-26 電磁波遮蔽アンテナを有する携帯通信機
FI973109A FI973109A (fi) 1995-01-28 1997-07-25 Säteilysuojatulla antennijärjestelyllä varustettu käsimatkaviestin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN95100160A CN1127941A (zh) 1995-01-28 1995-01-28 手持通讯设备新极化方式防辐射天线
CN95100160.4 1995-01-28

Publications (1)

Publication Number Publication Date
WO1996023327A1 true WO1996023327A1 (fr) 1996-08-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1996/000007 WO1996023327A1 (fr) 1995-01-28 1996-01-26 Dispositif portatif de telecommunication a appareil a antenne assurant la protection contre les rayonnements

Country Status (10)

Country Link
US (1) US5940039A (zh)
EP (1) EP0806809B1 (zh)
JP (1) JP3242926B2 (zh)
KR (1) KR100297225B1 (zh)
CN (1) CN1127941A (zh)
AU (1) AU4533796A (zh)
DE (1) DE69608540T2 (zh)
DK (1) DK0806809T3 (zh)
FI (1) FI973109A (zh)
WO (1) WO1996023327A1 (zh)

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US6289225B1 (en) * 1998-08-17 2001-09-11 Ericsson Inc. Retractable and pivotable multiple frequency band antenna
JP3838815B2 (ja) * 1999-05-10 2006-10-25 日本電気株式会社 携帯電話機
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US5940039A (en) 1999-08-17
AU4533796A (en) 1996-08-14
JP3242926B2 (ja) 2001-12-25
DE69608540T2 (de) 2001-01-18
DE69608540D1 (de) 2000-06-29
FI973109A (fi) 1997-09-08
JPH11504771A (ja) 1999-04-27
KR19980701732A (ko) 1998-06-25
DK0806809T3 (da) 2000-10-09
EP0806809A1 (en) 1997-11-12
KR100297225B1 (ko) 2001-09-03
EP0806809B1 (en) 2000-05-24
FI973109A0 (fi) 1997-07-25
EP0806809A4 (en) 1998-04-22
CN1127941A (zh) 1996-07-31

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