JPH08307126A - Container structure of antenna - Google Patents

Container structure of antenna

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Publication number
JPH08307126A
JPH08307126A JP11049095A JP11049095A JPH08307126A JP H08307126 A JPH08307126 A JP H08307126A JP 11049095 A JP11049095 A JP 11049095A JP 11049095 A JP11049095 A JP 11049095A JP H08307126 A JPH08307126 A JP H08307126A
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JP
Japan
Prior art keywords
radiating element
radiation
ground
wireless device
element
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP11049095A
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Japanese (ja)
Inventor
Taku Shioda
卓 塩田
Original Assignee
Kyocera Corp
京セラ株式会社
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 Kyocera Corp, 京セラ株式会社 filed Critical Kyocera Corp
Priority to JP11049095A priority Critical patent/JPH08307126A/en
Publication of JPH08307126A publication Critical patent/JPH08307126A/en
Application status is Granted legal-status Critical

Links

Abstract

PURPOSE: To suppress deterioration in a radiation pattern and a gain by connecting a part around a middle part of a radiation element to ground to maximize an input impedance between a 1st radiation element and a shield of a radio equipment when viewing a point around a feeding point.
CONSTITUTION: A part around a middle part of a 1st radiation element 21 is connected to ground being a ground conductor 27 which is a ground means of a feeder 25 so as to maximize an input impedance between the 1st radiation element 21 and the ground conductor of the feeder 25 in the case of containing the 1st radiation element 21 in a radio equipment 20. Since a signal current from the grounding side of the feeder 25 is more concentrated onto other radiation elements 22, 23, a current flowing to the radio equipment 20 is suppressed and the effect of radiation when a human body approaches is improved. Even when the signal current from the ground side of the feeder 25 is concentrated on the other radiation elements 22, 23 and the current distribution of the radiation system is close to that of a balanced system, since a part between the radiation element and the shield 24 acts like a balance/unbalance converter, change in the radiation pattern and deterioration in the gain are suppressed.
COPYRIGHT: (C)1996,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、携帯電話や自動車電話等の無線機器に用いられるアンテナの収納構造に関する。 The present invention relates, on the storage structure of the antenna used in mobile phones and wireless devices of the car phone and the like.

【0002】 [0002]

【従来の技術】図5は、特開平2ー271701号公報に記載されている「伸張可能なアンテナシステムおよびこれを用いた携帯用無線機」の概略図である。 BACKGROUND OF THE INVENTION FIG. 5 is a schematic diagram of a "extensible antenna system and a portable radio apparatus using the same" as disclosed in Japanese Patent Laid-Open No. 2-271701. 図5において、11は第1の放射素子、12は第2の放射素子、 5, the 11 first radiating element, 12 is a second radiating element,
13は第3の放射素子、14は無線機器のシールド、1 The third radiating element 13, 14 is a wireless device of the shield, 1
5は給電線路、16は給電点、17は第1の放射素子1 5 designates a feed line, 16 is the feeding point, the first 17 of the radiating element 1
1通過用の孔である。 1 is a hole for passage. 図5(a)は第1の放射素子11 5 (a) is first radiating element 11
を伸した状態、図5(b)は第1の放射素子11を無線機器10内部に収納した状態を表している。 The enlargement state, FIG. 5 (b) shows a state accommodating the first radiating element 11 within the wireless device 10.

【0003】また図6は、第1の放射素子11を無線機器10内部に収納した状態での断面図である。 [0003] FIG. 6 is a cross-sectional view of a state in which housing the first radiating element 11 within the wireless device 10. 図5 Figure 5
(a)では、第2の放射素子12に給電された高周波電力が電磁界結合により第1の放射素子11に給電されて動作するが、図5(b)では、第2の放射素子12単体のみが動作するようになっている。 (A), the although the high-frequency power supplied to the second radiating element 12 operates is powered to the first radiating element 11 by electromagnetic coupling, in FIG. 5 (b), the second radiating element 12 alone only it is supposed to work. 第3の放射素子13 Third radiating element 13
は、その接地されていない素子端からみた第3の放射素子13と無線機器10のシールド14との間の入力インピーダンスが極大となり、かつ給電点16からみた第1 Is first the input impedance between the shield 14 of the third radiating element 13 and the wireless device 10 as seen from the element end that is not grounded is maximized, and viewed from the feeding point 16 1
の放射素子11と第3の放射素子13との入力インピーダンスが給電線路15の特性インピーダンスと同程度となるように1/4波長の電気的な長さがとられている。 The input impedance of the radiating element 11 and the third radiating element 13 is the electrical length of a quarter wavelength so that the characteristic impedance and the same degree of feed line 15 is taken in.
したがって、接地側の電流は主に第3の放射素子13上を流れるので、無線機器10のシールド14上を流れる電流を抑圧でき、無線機器10を人体が保持した場合にも、そのことによる放射への影響が少なくなる。 Accordingly, since the ground side of the current flows mainly third radiating element 13 above, can suppress the current flowing on the shield 14 of the wireless device 10, even when the wireless device 10 the body is held, the radiation due to its impact of the decreases.

【0004】 [0004]

【発明が解決しようとする課題】しかしながら、前記特開平2ー271701号公報に開示されている例では、 [SUMMARY OF THE INVENTION However, in the example disclosed in JP-A Hei 2-271701,
第1の放射素子11を無線機器10内部に収納した状態において、次に述べる2つの問題点がある。 In the state in which housing the first radiating element 11 within the wireless device 10, there are two problems to be described below.

【0005】1)第3の放射素子13が一方向だけしかないために、上述した無線機器10上を流れる電流の抑圧効果はあまり得られず、人体が近づいた場合の放射への影響はさほど改善されない。 [0005] 1) For the third radiating element 13 there is only one way, the effect of suppressing the current flowing on the wireless device 10 described above is not obtained very much, so much effect on the radiation when the human body approaches It does not improve.

【0006】2)仮に給電線路15の接地側からの信号電流が第3の放射素子13に集中した場合、第2の放射素子12と第3の放射素子13により構成される放射系は平衡型に近い電流分布となり、不平衡電流が流れるために、放射パターンの変化や利得の劣化という悪影響が発生する。 [0006] 2) If when the signal current from the ground side of the feed line 15 are concentrated to the third radiating element 13, a second radiating element 12 radiating system constituted by the third radiating element 13 is balanced It becomes current distribution close to, for unbalanced current flows, adverse effect of deterioration of the change and the gain of the radiation pattern occurs.

【0007】 [0007]

【課題を解決するための手段】本発明の目的は、このような問題点を解消し、第1の放射素子収納時においても、放射パターンや利得の劣化、および人体近接による特性の劣化が少なくなるようなアンテナの収納構造を有する無線機器を提供することにある。 Means for Solving the Problems The object of the present invention is to solve such problems, even when the first radiating element housing, degradation of the radiation pattern and gain, and the human body proximity characteristic degradation due to less to provide a wireless device having a holder for a made such an antenna.

【0008】上記課題を解決するために、本発明は、1 [0008] In order to solve the above problems, the present invention is 1
/2波長の電気的な長さを持つ第1の放射素子、1/4 / 2 first radiating element having an electrical length of wavelength, 1/4
波長の電気的な長さを持つ第2の放射素子、給電点付近にて接地された1/4波長の電気的な長さを持つ第3の放射素子により構成され、第1の放射素子が無線機器内部へ収納可能であり、第1の放射素子を無線機器から引出したときには、第2の放射素子に給電された高周波電力が電磁界結合により第1の放射素子に給電動作し、第1の放射素子を収納したときには、第2の放射素子単体にて動作するアンテナにおいて、第1の放射素子を無線機器内部に収納した際に、給電点付近からみた第1の放射素子と無線機器のシールドとの間の入力インピーダンスが極大となるように、第1の放射素子の中央部付近を接地するようにした。 The second radiating element having an electrical length of the wave, is constituted by the third radiating element having an electrical length of a quarter wavelength that is grounded in the vicinity feeding point, the first radiating element and it can be stored into the interior wireless device, when the drawer the first radiating element from the wireless device, the high-frequency power supplied to the second radiating element is first to power supply operation to the radiating element by electromagnetic coupling, first of when the housing is radiating element, the antenna operating at the second radiating element alone, upon receiving the first radiation element within a wireless device, the first radiating element and the radio equipment viewed from the vicinity of the feeding point as the input impedance between the shield is maximized, and the vicinity of the center portion of the first radiating element so as to ground.

【0009】 [0009]

【作用】上記のように構成したので、給電線路の接地側からの信号電流は、他の放射素子上により集中するので、無線機器上を流れる電流を抑圧することが出来、人体が近ずいた場合の放射への影響を改善することが出来る。 [Action] Since the structure described above, the signal current from the ground side of the feed line, so concentrated by the above other radiation element, it is possible to suppress the current flowing on the wireless device, the human body was near stamen it is possible to ameliorate the effects of the radiation case. また、給電線路の接地側からの信号電流が他の放射素子に集中し、放射系が平衡型に近い電流分布となっても、放射素子とシールドとの間が平衡/不平衡変換器として働くので、放射パターンの変化や利得の劣化を抑えることが出来る。 The signal current from the ground side of the feed line is concentrated on the other radiating elements, even when the radiation system and the current distribution close to the balanced type, acts as the equilibrium / unbalanced transformer between the radiating element and the shield because, it is possible to suppress the deterioration of the change and the gain of the radiation pattern.

【0010】 [0010]

【実施例】以下、図面を用いて本発明の実施例を説明する。 EXAMPLES Hereinafter, the embodiments of the present invention will be described with reference to the drawings.

【0011】図において、同じ部位は同じ符号で示す。 [0011] In Figure, the same site is indicated by the same reference numerals.

【0012】図1は、第1の放射素子21の無線機器2 [0012] Figure 1 is a wireless device 2 of the first radiating element 21
0内収納時において、第1の放射素子21と給電線路2 During 0 within housing, the first radiating element 21 feeding line 2
5の接地導体との間の入力インピーダンスが極大となるように、第1の放射素子21の中央部付近を給電線路2 As the input impedance between the ground conductor 5 is maximized, the feed line 2 to near the center portion of the first radiating element 21
5の接地手段である接地導体27に接地した場合の実施例である。 5 is a ground means an embodiment in which grounded to the ground conductor 27. 22は第2の放射素子、23は第3の放射素子、24は無線機器のシールドを示す。 The second radiating element 22, 23 the third radiating element, 24 denotes a shield of the wireless device.

【0013】図2は、第1の放射素子31の無線機器3 [0013] Figure 2, wireless device 3 of the first radiating element 31
0内収納時において、第1の放射素子31と給電線路3 During 0 within housing, the first radiating element 31 and the feed line 3
5の接地導体37との間の入力インピーダンスが極大となるように、第1の放射素子31の中央部付近を給電線路35の接地導体37に接地した場合の実施例である。 As the input impedance between the ground conductor 37 of 5 is maximum, it is an example of a case where the ground near the center portion of the first radiating element 31 to the ground conductor 37 of the feed line 35.
32は第2の放射素子、33は第3の放射素子、34無線機器のシールドである。 32 and the second radiating element, the 33 third radiating element, a shield 34 wireless devices.

【0014】図3は、第1の放射素子41が無線機器4 [0014] Figure 3 comprises a first radiating element 41 is a wireless device 4
0のシールドの外側に収納される構造において、給電点付近からみた第1の放射素子41と無線機器40のシールド44とのとの間の入力インピーダンスが極大となるように、第1の放射素子41の中央部付近を接地するようにした場合の実施例である。 In the structures to be housed outside the 0 of the shield, so that the input impedance between the shield 44 of the first radiating element 41 and the wireless device 40 as viewed from the vicinity of the feed point is maximum, the first radiating element 41 is an example of a case where the vicinity of the central portion so as to ground. 42は第2の放射素子、 42 second radiating element,
43は第3の放射素子、45は給電線路、47は接地導体である。 The third radiating element 43, 45 designates a feed line, 47 denotes a ground conductor.

【0015】また図4は、第1の放射素子51の無線機器50収納時の無線機器のシールドもしくは給電線路の接地導体54への接地方法に関する他の実施例であり、 [0015] FIG. 4 is a further embodiment relating to ground method to ground conductor 54 of the first wireless device when the wireless device 50 accommodated in the radiating element 51 of the shield or the feed line,
図4(a)は、容量結合にて接地した場合の実施例を示しており、図4(b)はインダクタンス結合にて接地した場合の実施例を示している。 FIGS. 4 (a) shows an embodiment in which grounded by capacitive coupling, FIG. 4 (b) shows an embodiment in which grounded by inductance coupling. 54は無線機器50のシールドもしくは給電線路の接地導体であり、58は容量結合素子、59はインダクタンス結合素子である。 54 is a ground conductor of the radio device 50 of the shield or the feed line, 58 is capacitively coupled element, 59 is an inductive coupling element.

【0016】なお、上記実施例では第1の放射素子、第2の放射素子がともにヘリカル素子の場合を示したが、 [0016] In the above embodiment the first radiation element, the second radiating element are both show the case of a helical element,
本発明はこれに対してのみ適用されるものではなく、任意の素子形状の放射素子に適用可能であることは言うまでもない。 The present invention is not intended to be applied only to this but can naturally be applied to the radiating elements of device geometries.

【0017】 [0017]

【発明の効果】以上説明したように、本発明の構成ならびに方法によれば、 1)給電線路の接地側からの信号電流は、第3の放射素子上により集中するので、無線機器上を流れる電流を抑圧することが出来、人体が近づいた場合の放射への影響を改善すること 2)上記のように、給電線路の接地側からの信号電流が第3の放射素子に集中し、第2の放射素子と第3の放射素子により構成される放射系が平衡型に近い電流分布となっても、第1の放射素子と無線機器のシールドとの間が平衡/不平衡変換器として働くので、放射パターンの変化や利得の劣化を抑えることが出来る。 As described in the foregoing, according to the configuration and methods of the present invention, 1) the signal current from the ground side of the feed line, so concentrates the upper third radiating element, flowing on the wireless device current can be suppressed, 2 can ameliorate the effects of the radiation when the human body approaches), as described above, the signal current from the ground side of the feed line is concentrated on the third radiating element, the second even when the radiating element of the current distribution close to the radiation system balanced constituted by the third radiating element, since between the shield of the first radiating element and the radio device serves as a balanced / unbalanced transformer , it is possible to suppress the deterioration of the change and the gain of the radiation pattern.

【0018】従って、本発明によれば、第1の放射素子収納時においても、放射パターンや利得の劣化、および人体近接による特性の劣化の少ないアンテナの収納構造を持つ無線機器を提供することができる。 Thus, according to the present invention, even when the first radiating element housing, to provide degradation of the radiation pattern and gain, and a wireless device having a housing structure of the antenna little deterioration in characteristics due to human approach it can.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施例であり、第1の放射素子21が無線機器のシールド24内部に収納され、シールド24 [1] is an embodiment of the present invention, the first radiating element 21 is housed in the inner shield 24 of the wireless device, the shield 24
に接地される場合を示す。 Shows the case is grounded in.

【図2】本発明の実施例であり、第1の放射素子31が無線機器のシールド34内部に収納され、給電線路35 Figure 2 is an embodiment of the present invention, the first radiating element 31 is accommodated in the inner shield 34 of the wireless device, the feed line 35
の接地導体に接地される場合を示す。 Of showing a case that is grounded to the ground conductor.

【図3】本発明の実施例であり、第1の放射素子41が無線機器のシールド44外部に収納され、シールド44 [Figure 3] is an embodiment of the present invention, the first radiating element 41 is accommodated in the shield 44 external wireless device, the shield 44
に接地される場合を示す。 Shows the case is grounded in.

【図4】第1の放射素子51収納時の無線機器のシールドもしくは給電線路の接地導体54への接地方法に関する他の実施例であり、図4(a)は容量結合にて接地した場合、図4(b)はインダクタンス結合にて接地した場合である。 [Figure 4] is another embodiment relating to ground method to ground conductor 54 of the first wireless device at the time of radiating element 51 accommodated in the shield or the feed line, FIG. 4 (a) When it is grounded by a capacitive coupling, 4 (b) is a case where the ground by inductance coupling.

【図5】従来技術である特開平2ー271701号公報に記載されている無線機の概略図。 Figure 5 is a schematic diagram of a prior art in which Hei 2-radios that are described in 271701 JP. 図5(a)は第1の放射素子11を伸した状態、図5(b)は収納した状態を示す。 5 (a) is a state in which enlargement the first radiating element 11, FIG. 5 (b) shows a storage state.

【図6】第1の放射素子11を無線機器内部に収納した状態の断面図。 6 is a cross-sectional view of a state in which housing the first radiating element 11 within the wireless device.

【符号の説明】 DESCRIPTION OF SYMBOLS

10 無線機器 11 第1の放射素子 12 第2の放射素子 13 第3の放射素子 14 無線機器のシールド 15 給電線路 16 給電点 17 第1の放射素子通過用の孔 20 無線機器 21 第1の放射素子 22 第2の放射素子 23 第3の放射素子 24 無線機器のシールド 25 給電線路 27 接地導体 30 無線機器 31 第1の放射素子 32 第2の放射素子 33 第3の放射素子 34 無線機器のシールド 35 給電線路 37 接地導体 40 無線機器 41 第1の放射素子 42 第2の放射素子 43 第3の放射素子 44 無線機器のシールド 45 給電線路 47 接地導体 50 無線機器 51 第1の放射素子 54 無線機器のシールドもしくは給電線路の接地導体 58 容量結合素子 59 インダクタンス結合素子 10 wireless device 11 first radiating element 12 and the second radiating element 13 third radiating element 14 holes 20 wireless device 21 first radiating radio equipment of the shield 15 feed line 16 feeding point 17 first radiating element for passing element 22 and the second radiating element 23 third shield 25 of the radiating element 24 the wireless device feed line 27 grounding conductor 30 wireless device 31 first radiating element 32 and the second radiating element 33 third radiating element 34 wireless devices of the shield 35 feed line 37 grounding conductor 40 wireless device 41 first radiating element 42 and the second radiating element 43 third radiating element 44 the wireless device shield 45 feed line 47 grounding conductor 50 wireless device 51 first radiating element 54 wireless devices ground conductor 58 capacitive coupling element 59 inductance coupling element of the shield or the feed line

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】1/2波長の電気的な長さを持つ第1の放射素子、1/4波長の電気的な長さを持つ第2の放射素子、給電点付近にて接地された1/4波長の電気的な長さを持つ第3の放射素子により構成され、第1の放射素子が無線機器内部へ収納可能であり、第1の放射素子を無線機器から引出したときには、第2の放射素子に給電された高周波電力が電磁界結合により第1の放射素子に給電動作し、第1の放射素子を収納したときには、第2 1. A first radiating element having an electrical length of 1/2 wavelength, a second radiating element having an electrical length of 1/4 wavelength, 1 that is grounded at about the feeding point / 4 is constituted by the third radiating element having an electrical length of the wave, the first radiating element is capable of accommodating the internal wireless device, when the drawer the first radiating element from the wireless device, the second high-frequency power supplied to the radiating element is powered operation to the first radiating element by electromagnetic field coupling, when accommodating the first radiating element, the second
    の放射素子単体にて動作するアンテナにおいて、前記第1の放射素子を無線機器内部に収納した際に、給電点付近からみた第1の放射素子と無線機器のシールドとの間の入力インピーダンスが極大となるように、第1の放射素子の中央部付近を接地するようにしたことを特徴とするアンテナの収納構造。 In the antenna operating at the radiating element single, upon receiving the first radiation element within a wireless device, the input impedance between the first radiating element and the radio equipment of the shield viewed from the vicinity of the feed point is maximum become such, storage structure of the antenna, characterized in that so as to ground the vicinity of the central portion of the first radiating element.
JP11049095A 1995-05-09 1995-05-09 Container structure of antenna Granted JPH08307126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11049095A JPH08307126A (en) 1995-05-09 1995-05-09 Container structure of antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11049095A JPH08307126A (en) 1995-05-09 1995-05-09 Container structure of antenna

Publications (1)

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JPH08307126A true JPH08307126A (en) 1996-11-22

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Family Applications (1)

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JP11049095A Granted JPH08307126A (en) 1995-05-09 1995-05-09 Container structure of antenna

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Country Link
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GR20060100125A (en) * 2006-02-24 2007-10-02 Βασιλειοσ Μαστοροπουλοσ Multi-coil antenna
WO2008007606A1 (en) * 2006-07-11 2008-01-17 Murata Manufacturing Co., Ltd. Antenna and radio ic device
US7519328B2 (en) 2006-01-19 2009-04-14 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
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US7762472B2 (en) 2007-07-04 2010-07-27 Murata Manufacturing Co., Ltd Wireless IC device
US7786949B2 (en) 2006-04-14 2010-08-31 Murata Manufacturing Co., Ltd. Antenna
US7830311B2 (en) 2007-07-18 2010-11-09 Murata Manufacturing Co., Ltd. Wireless IC device and electronic device
US7871008B2 (en) 2008-06-25 2011-01-18 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
US7932730B2 (en) 2006-06-12 2011-04-26 Murata Manufacturing Co., Ltd. System for inspecting electromagnetic coupling modules and radio IC devices and method for manufacturing electromagnetic coupling modules and radio IC devices using the system
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WO1998033232A1 (en) * 1997-01-28 1998-07-30 Yokowo Co., Ltd. Antenna for mounting on vehicle, antenna element, and manufacturing method therefor
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