JP2010161442A - Portable radio device - Google Patents

Portable radio device Download PDF

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Publication number
JP2010161442A
JP2010161442A JP2009000616A JP2009000616A JP2010161442A JP 2010161442 A JP2010161442 A JP 2010161442A JP 2009000616 A JP2009000616 A JP 2009000616A JP 2009000616 A JP2009000616 A JP 2009000616A JP 2010161442 A JP2010161442 A JP 2010161442A
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Japan
Prior art keywords
casing
circuit board
conductor
housing
wireless device
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JP2009000616A
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Japanese (ja)
Inventor
Nobuaki Majima
伸明 間嶋
Tadashi Oga
忠 大賀
Shoichi Kajiwara
正一 梶原
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Panasonic Corp
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Panasonic Corp
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Priority to JP2009000616A priority Critical patent/JP2010161442A/en
Priority to PCT/JP2009/006277 priority patent/WO2010079546A1/en
Publication of JP2010161442A publication Critical patent/JP2010161442A/en
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    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding-structure portable radio device which is less likely to cause deterioration in antenna performance, when used in a folded condition. <P>SOLUTION: In the portable radio device 1, an electrical conductor 30 is arranged in each of a hinge part 11 side of an upper casing 10A and a hinge part 11 side of a lower casing 10B. As a result, resonance between a ground pattern 17 of a circuit board 15 tends to occur less, in the upper casing 10A and a ground pattern 18 of a circuit board 20 in the lower casing 10B, and antenna performance can be improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、携帯電話やＰＨＳ（Personal Handy Phone System）等の携帯無線機に関する。   The present invention relates to a portable wireless device such as a mobile phone or a PHS (Personal Handy Phone System).

従来、携帯電話やＰＨＳ等の携帯無線機において、例えば特許文献１や特許文献２にあるように、アンテナ性能の改善を図る提案がなされている。特許文献１には、ヒンジ部にアンテナを備えた折り畳み構造の携帯電話機において、前記アンテナと接近する上部筐体に反転エレメントを設け、前記アンテナと逆方向に流れる電流を低減する技術が開示されている。特許文献２には、アンテナ給電点近傍の回路基板のグランド部分に接触端子を設け、導電性を有する筐体部分と導通させることで、筐体の誘導電流の発生を防止し、放射素子として動作させることでアンテナ性能を向上させる技術が開示されている。   2. Description of the Related Art Conventionally, in portable wireless devices such as mobile phones and PHSs, as disclosed in Patent Document 1 and Patent Document 2, for example, proposals for improving antenna performance have been made. Patent Document 1 discloses a technology for reducing a current flowing in a direction opposite to the antenna by providing a reversal element in an upper casing approaching the antenna in a folding cellular phone having an antenna in a hinge portion. Yes. In Patent Document 2, a contact terminal is provided in the ground portion of the circuit board near the antenna feeding point, and is electrically connected to the conductive casing portion, thereby preventing the generation of induced current in the casing and operating as a radiating element. Thus, a technique for improving antenna performance is disclosed.

特開２００６−０８６７１５号公報JP 2006-086715 A 特開平１１−３４０８６７号公報Japanese Patent Laid-Open No. 11-340867

ところで、従来の折り畳み式の携帯無線機においては、折り畳んだ状態即ち閉状態にすると、上筐体の回路基板のグランドパターンと下筐体の回路基板のグランドパターンとの高周波的な結合によって共振が起こり、その共振の発生箇所（即ち共振発生周波数）におけるＶＳＷＲ（Voltage Standing Wave Ratio、電圧定在波比）が大きくなってアンテナ性能が劣化する問題がある。なお、上述した特許文献１で開示された技術は、閉状態では上下筐体内の回路基板間に発生する誘導電流を低減することができない。また、特許文献２で開示された技術は折り畳み構造の携帯無線機を想定していない。   By the way, in a conventional folding portable wireless device, when folded, that is, in a closed state, resonance occurs due to high-frequency coupling between the ground pattern of the circuit board of the upper housing and the ground pattern of the circuit board of the lower housing. As a result, the VSWR (Voltage Standing Wave Ratio) at the location where the resonance occurs (that is, the resonance generation frequency) becomes large and the antenna performance deteriorates. Note that the technique disclosed in Patent Document 1 described above cannot reduce the induced current generated between the circuit boards in the upper and lower casings in the closed state. Moreover, the technique disclosed in Patent Document 2 does not assume a portable wireless device having a folding structure.

本発明は、係る事情に鑑みてなされたものであり、折り畳み構造の携帯無線機において、折り畳んだ状態での使用時にアンテナ性能劣化が起こり難い携帯無線機を提供することを目的とする。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a portable wireless device having a folded structure in which antenna performance is unlikely to deteriorate when used in a folded state.

本発明の携帯無線機は、非導体で構成される第１の筐体と、非導体で構成される第２の筐体と、前記第１の筐体と前記第２の筐体とを回動自在に連結するヒンジ部と、前記第１の筐体又は前記第２の筐体のいずれかに設けられた回路基板と、前記回路基板に設けられた無線回路と、前記ヒンジ部に配置されたアンテナ素子と、前記無線回路に接続され前記アンテナ素子に給電する給電部と、折り畳んだとき筐体厚み方向において重なるように前記第１の筐体及び前記第２の筐体の前記ヒンジ部側に配置された複数の導電体と、を備えた。   The portable wireless device of the present invention is configured to rotate the first casing made of a nonconductor, the second casing made of a nonconductor, the first casing, and the second casing. A hinge part that is movably connected, a circuit board provided in either the first casing or the second casing, a radio circuit provided in the circuit board, and a hinge part. Side of the first casing and the second casing so as to overlap each other in the thickness direction of the casing when folded. And a plurality of conductors arranged in the.

上記構成によれば、第１の筐体のヒンジ部側と第２の筐体のヒンジ部側のそれぞれに導電体を配置したので、第１の筐体内の回路基板のグランドパターンと第２の筐体内の回路基板のグランドパターンとの間で共振が起こり難くなり、アンテナ性能の向上が図れる。   According to the above configuration, the conductor is disposed on each of the hinge part side of the first casing and the hinge part side of the second casing, so that the ground pattern of the circuit board in the first casing and the second pattern Resonance is less likely to occur with the ground pattern of the circuit board in the housing, and antenna performance can be improved.

また、上記構成において、前記複数の導電体の各々は、所定の面積で構成される。例えば、幅４０ｍｍ、長さ１０ｍｍの４００ｍｍ２とする。 Further, in the above configuration, each of the plurality of conductors is configured with a predetermined area. For example, the width is 400 mm 2 having a width of 40 mm and a length of 10 mm.

また、上記構成において、前記複数の導電体の各々は、筐体短手方向における前記回路基板の幅と略等しい幅で構成される。   In the above configuration, each of the plurality of conductors has a width substantially equal to the width of the circuit board in the lateral direction of the housing.

また、上記構成において、前記複数の導電体の各々は、前記回路基板のグランドパターンと直接あるいはリアクタンス素子を介して電気的に接続される。   In the above configuration, each of the plurality of conductors is electrically connected to the ground pattern of the circuit board directly or via a reactance element.

上記構成によれば、導電体を、リアクタンス素子を介して回路基板のグランドパターンに接続した場合、共振周波数が変化するので、該共振周波数を携帯無線機として使用する周波数帯から外すことができる。   According to the above configuration, when the conductor is connected to the ground pattern of the circuit board via the reactance element, the resonance frequency changes, so that the resonance frequency can be excluded from the frequency band used as the portable wireless device.

本発明は、折り畳み構造の携帯無線機において、第１の筐体のヒンジ部側と第２の筐体のヒンジ部側のそれぞれに導電体を配置したので、折り畳んだ閉状態で上筐体内の回路基板のグランドパターンと下筐体内の回路基板のグランドパターンとの間での共振の発生が起こり難くなり、アンテナ性能の向上が図れる。   In the folding portable radio device according to the present invention, the conductor is disposed on each of the hinge part side of the first casing and the hinge part side of the second casing. The occurrence of resonance between the ground pattern of the circuit board and the ground pattern of the circuit board in the lower housing hardly occurs, and the antenna performance can be improved.

以下、本発明を実施するための好適な実施の形態について、図面を参照して詳細に説明する。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described in detail with reference to the drawings.

（実施の形態１）
図１は、本発明の実施の形態１に係る携帯無線機の外観を示す側面図である。また、図２は本実施の形態の携帯無線機の下筐体のケース部を外した状態の外観を示す側面図である。また、図３は図２において矢印Ａで示す部分を示す斜視図である。また、図４は本実施の形態の携帯無線機の内部構成を模式的に示した図である。 (Embodiment 1)
FIG. 1 is a side view showing an appearance of a portable wireless device according to Embodiment 1 of the present invention. FIG. 2 is a side view showing the appearance of the portable wireless device according to the present embodiment with the case of the lower casing removed. FIG. 3 is a perspective view showing a portion indicated by an arrow A in FIG. FIG. 4 is a diagram schematically showing the internal configuration of the portable wireless device according to the present embodiment.

図１から分かるように本実施の形態の携帯無線機１は折り畳み構造の携帯無線機であり、非導体で構成される上筐体（第１の筐体）１０Ａと、非導体で構成される下筐体（第２の筐体）１０Ｂと、上筐体１０Ａと下筐体１０Ｂとを回動自在に連結するヒンジ部１１とを備える。また、図４に示すように上筐体１０Ａには主に回路基板１５及び液晶表示器１６が設けられており、下筐体１０Ｂには主に回路基板２０、アンテナ素子２５及び給電部２６が設けられている。下筐体１０Ｂの回路基板２０には無線回路２１が実装されており、アンテナ素子２５はヒンジ部１１の近傍に配置され、給電部２６は無線回路２１に接続されている。なお、下筐体１０Ｂにはテンキーやファンクションキーなどの複数のキーからなるキーパネル（図示略）も設けられている。   As can be seen from FIG. 1, the portable wireless device 1 of the present embodiment is a folded portable wireless device, and is composed of a non-conductor upper housing (first housing) 10 </ b> A and a non-conductor. A lower housing (second housing) 10B and a hinge portion 11 that rotatably connects the upper housing 10A and the lower housing 10B are provided. As shown in FIG. 4, the upper housing 10A is mainly provided with a circuit board 15 and a liquid crystal display 16, and the lower housing 10B is mainly provided with a circuit board 20, an antenna element 25, and a power feeding unit 26. Is provided. A radio circuit 21 is mounted on the circuit board 20 of the lower housing 10 </ b> B, the antenna element 25 is disposed in the vicinity of the hinge unit 11, and the power feeding unit 26 is connected to the radio circuit 21. The lower housing 10B is also provided with a key panel (not shown) composed of a plurality of keys such as numeric keys and function keys.

また、上筐体１０Ａと下筐体１０Ｂには、携帯無線機１を折り畳んだときに筐体厚み方向において重なるように上筐体１０Ａ及び下筐体１０Ｂのヒンジ部１１側に導電体３０が設けられている。この導電体３０は、図２又は図３に示すように薄い板状に形成されており、バネ部材３１で上下筐体１０Ａ、１０Ｂのそれぞれに取り付けられている。図２及び図３では下筐体１０Ｂ側の導電体３０を示しているが、上筐体１０Ａ側の導電体３０も同様の形状を有している。これらの導電体３０は筐体短手方向における回路基板１５、２０の幅と略等しい幅で構成されている。また、導電体３０は、上筐体１０Ａの液晶表示器１６と下筐体１０Ｂのキーパネル（図示略）によって制約を受けるので、それらの形状を鑑みた長さになっている。その面積は例えば幅４０ｍｍ、長さ１０ｍｍの４００ｍｍ２である。 Further, the conductor 30 is provided on the upper casing 10A and the lower casing 10B on the hinge part 11 side of the upper casing 10A and the lower casing 10B so as to overlap in the thickness direction of the casing when the portable wireless device 1 is folded. Is provided. The conductor 30 is formed in a thin plate shape as shown in FIG. 2 or FIG. 3, and is attached to each of the upper and lower housings 10A and 10B by a spring member 31. 2 and 3 show the conductor 30 on the lower housing 10B side, the conductor 30 on the upper housing 10A side has the same shape. These conductors 30 have a width substantially equal to the width of the circuit boards 15 and 20 in the lateral direction of the casing. Moreover, since the conductor 30 is restricted by the liquid crystal display 16 of the upper housing 10A and the key panel (not shown) of the lower housing 10B, it has a length in consideration of the shape thereof. The area is 400 mm 2 having a width of 40 mm and a length of 10 mm, for example.

下筐体１０Ｂ側の導電体３０は、下筐体１０Ｂのケース部１２（図１参照）を取り外すことでその外観を見ることができ、上筐体１０Ａ側の導電体３０も下筐体１０Ｂ側の導電体３０と同様に上筐体１０Ａのケース部（図示略）を取り外すことでその外観を見ることができる。なお、導電体３０は、薄い板状に形成して上下筐体１０Ａ、１０Ｂに配置する以外に例えば低抵抗導電性の発泡ウレタンを薄いシート状に形成してケース部１２（上筐体１０Ａのケース部も含む）の裏側に両面テープで貼り付けるようにしても良いし、上下筐体１０Ａ、１０Ｂを構成する樹脂材料（非導体）に金属粉を混合させるようにしても良い。さらに、ケース部１２（上筐体１０Ａのケース部も含む）の内側に導電性部材を蒸着させるようにしても良い。   The conductor 30 on the lower housing 10B side can be seen by removing the case portion 12 (see FIG. 1) of the lower housing 10B, and the conductor 30 on the upper housing 10A side is also the lower housing 10B. The external appearance can be seen by removing the case portion (not shown) of the upper housing 10A in the same manner as the conductor 30 on the side. The conductor 30 is formed in a thin plate shape and disposed in the upper and lower housings 10A and 10B. For example, low resistance conductive foamed urethane is formed in a thin sheet shape to form the case portion 12 (of the upper housing 10A). A double-sided tape may be affixed to the back side of the case (including the case portion), or metal powder may be mixed with the resin material (non-conductor) constituting the upper and lower casings 10A and 10B. Further, a conductive member may be deposited inside the case portion 12 (including the case portion of the upper housing 10A).

このように上筐体１０Ａのヒンジ部１１側と下筐体１０Ｂのヒンジ部１１側のそれぞれに導電体３０を配置する。導電体３０を配置することで上筐体１０Ａ内の回路基板１５のグランドパターン１７と下筐体１０Ｂ内の回路基板２０のグランドパターン１８との間で共振が起こり難くなる。図５は、導電体３０が有る場合と無い場合のＶＳＷＲの周波数特性を比較した図である。同図において、導電体３０が無い場合は１．７ＧＨｚ〜１．８ＧＨｚ帯でＶＳＷＲが悪化するが（（ａ）参照）、導電体３０が有ると同周波数帯でのＶＳＷＲが略フラットになる（（ｂ）参照）。例えば、携帯電話では８００ＭＨｚ帯と２ＧＨｚ帯が使用されるが、導電体３０を設けることで２ＧＨｚ帯を良好に使用することが可能となる。   Thus, the conductors 30 are arranged on the hinge part 11 side of the upper casing 10A and the hinge part 11 side of the lower casing 10B, respectively. By arranging the conductor 30, resonance hardly occurs between the ground pattern 17 of the circuit board 15 in the upper casing 10 </ b> A and the ground pattern 18 of the circuit board 20 in the lower casing 10 </ b> B. FIG. 5 is a diagram comparing the frequency characteristics of the VSWR with and without the conductor 30. In the figure, the VSWR deteriorates in the 1.7 GHz to 1.8 GHz band when there is no conductor 30 (see (a)), but when the conductor 30 is present, the VSWR in the same frequency band becomes substantially flat ( (See (b)). For example, an 800 MHz band and a 2 GHz band are used in a cellular phone, but the 2 GHz band can be satisfactorily used by providing the conductor 30.

以上のように本実施の形態の携帯無線機１によれば、上筐体１０Ａのヒンジ部１１側と下筐体１０Ｂのヒンジ部１１側のそれぞれに導電体３０を配置したので、上筐体１０Ａ内の回路基板１５のグランドパターン１７と下筐体１０Ｂ内の回路基板２０のグランドパターン１８との間で共振が起こり難くなり、アンテナ性能の向上が図れる。   As described above, according to the portable wireless device 1 of the present embodiment, since the conductors 30 are arranged on the hinge portion 11 side of the upper housing 10A and the hinge portion 11 side of the lower housing 10B, the upper housing Resonance hardly occurs between the ground pattern 17 of the circuit board 15 in 10A and the ground pattern 18 of the circuit board 20 in the lower housing 10B, and the antenna performance can be improved.

なお、導電体３０を設けることにより、人体の手への電力吸収を低減できる効果が期待できる。即ち、上筐体１０Ａと下筐体１０Ｂを開いた開状態で使用した際に導電体３０に電界が集中し、導電体３０以外の部分におけるエネルギー密度が低減する。図６に示すように、折り畳み式の携帯無線機の場合、下筐体を持つことが殆どであるので、導電体３０以外の部分を持つことで手への電力吸収が低減し、電波の放射効率が改善される。   In addition, the effect which can reduce the electric power absorption to the hand of a human body by providing the conductor 30 can be anticipated. That is, when the upper housing 10A and the lower housing 10B are used in an open state, the electric field concentrates on the conductor 30, and the energy density in a portion other than the conductor 30 is reduced. As shown in FIG. 6, in the case of a foldable portable wireless device, it is almost the case that it has a lower housing, so that having a portion other than the conductor 30 reduces power absorption to the hand and radiates radio waves. Efficiency is improved.

（実施の形態２）
図７は、本発明の実施の形態２に係る携帯無線機の内部構成を模式的に示した図である。なお、図７において前述した図４と共通する部分には同一の符号を付けている。本実施の形態の携帯無線機２は、前述した実施の形態１の携帯無線機１と同一の構成を有するとともに、上下筐体１０Ａ、１０Ｂそれぞれに配置された導電体３０を上下筐体１０Ａ、１０Ｂそれぞれの回路基板１５、２０のグランドパターン１７、１８に電気的に接続するリアクタンス素子４０を有している。 (Embodiment 2)
FIG. 7 is a diagram schematically showing the internal configuration of the portable wireless device according to the second embodiment of the present invention. 7 that are the same as those in FIG. 4 described above are denoted by the same reference numerals. The portable wireless device 2 of the present embodiment has the same configuration as the portable wireless device 1 of the first embodiment described above, and the conductors 30 arranged in the upper and lower housings 10A and 10B are connected to the upper and lower housings 10A and 10A, respectively. The reactance element 40 is electrically connected to the ground patterns 17 and 18 of the circuit boards 15 and 20 of the circuit boards 10B.

リアクタンス素子４０にて導電体３０を回路基板１５、２０のグランドパターン１７、１８に接続することで共振周波数が変化する。例えば図８に示すように、共振周波数を携帯無線機２の使用周波数帯である２ＧＨｚ帯から外すことができる。この手法は、導電体３０だけでは共振を完全に除去できない場合やアンテナ性能のばらつきを低減する場合に有効である。リアクタンス素子４０として、コンデンサやコイル等のチップ部品が好適である。   The resonance frequency is changed by connecting the conductor 30 to the ground patterns 17 and 18 of the circuit boards 15 and 20 by the reactance element 40. For example, as shown in FIG. 8, the resonance frequency can be removed from the 2 GHz band that is the use frequency band of the portable wireless device 2. This technique is effective when the resonance cannot be completely removed by the conductor 30 alone or when the variation in antenna performance is reduced. As the reactance element 40, a chip component such as a capacitor or a coil is suitable.

以上のように本実施の形態の携帯無線機２によれば、上下筐体１０Ａ、１０Ｂそれぞれに配置した導電体３０を上下筐体１０Ａ、１０Ｂそれぞれの回路基板１５、２０のグランドパターン１７、１８にリアクタンス素子４０を介して電気的に接続するようにしたので、共振周波数を変化させることが可能となり、導電体３０だけでは共振を完全に除去できない場合に共振周波数を携帯無線機２の使用周波数帯から外すことができ、またアンテナ性能のばらつきを低減することができる。   As described above, according to the portable wireless device 2 of the present embodiment, the conductors 30 arranged in the upper and lower casings 10A and 10B are connected to the ground patterns 17 and 18 of the circuit boards 15 and 20 in the upper and lower casings 10A and 10B, respectively. Since the resonance frequency can be changed, the resonance frequency is changed to the frequency used by the portable wireless device 2 when the conductor 30 alone cannot completely remove the resonance. It can be removed from the band, and variations in antenna performance can be reduced.

本発明は、折り畳み構造の携帯無線機を折り畳んだ状態での使用時にアンテナ性能劣化が起り難いといった効果を有し、携帯電話やＰＨＳ等の携帯無線機への適用が可能である。   INDUSTRIAL APPLICABILITY The present invention has an effect that antenna performance is hardly deteriorated when a folded portable wireless device is used in a folded state, and can be applied to portable wireless devices such as a mobile phone and a PHS.

本発明の実施の形態１に係る携帯無線機の外観を示す側面図The side view which shows the external appearance of the portable radio | wireless machine which concerns on Embodiment 1 of this invention 図１の携帯無線機の下筐体のケース部を外した状態の外観を示す側面図The side view which shows the external appearance of the state which removed the case part of the lower housing | casing of the portable wireless apparatus of FIG. 図２において矢印Ａで示す部分を示す斜視図The perspective view which shows the part shown by the arrow A in FIG. 図１の携帯無線機の内部構成を模式的に示した図The figure which showed the internal structure of the portable radio | wireless machine of FIG. 1 typically 導電体が有る場合と無い場合のＶＳＷＲの周波数特性を比較した図Figure comparing frequency characteristics of VSWR with and without conductor 図１の携帯無線機の上下筐体を開いた状態での使用時における副次的な効果を説明するための図The figure for demonstrating the secondary effect at the time of use in the state which opened the upper and lower housings | casings of the portable radio | wireless machine of FIG. 本発明の実施の形態２に係る携帯無線機の内部構成を模式的に示した図The figure which showed typically the internal structure of the portable radio | wireless machine which concerns on Embodiment 2 of this invention. 図７の携帯無線機のＶＳＷＲの周波数特性を示す図The figure which shows the frequency characteristic of VSWR of the portable radio | wireless machine of FIG.

１、２ 携帯無線機
１０Ａ 上筐体
１０Ｂ 下筐体
１１ ヒンジ部
１２ ケース部
１５、２０ 回路基板
１６ 液晶表示器
１７、１８ グランドパターン
２１ 無線回路
２５ アンテナ素子
２６ 給電部
３０ 導電体
３１ バネ部材
４０ リアクタンス素子 DESCRIPTION OF SYMBOLS 1, 2 Portable radio | wireless machine 10A Upper housing | casing 10B Lower housing | casing 11 Hinge part 12 Case part 15, 20 Circuit board 16 Liquid crystal display 17, 18 Ground pattern 21 Wireless circuit 25 Antenna element 26 Electric power feeding part 30 Conductor 31 Spring member 40 Reactance element

Claims (4)

非導体で構成される第１の筐体と、
非導体で構成される第２の筐体と、
前記第１の筐体と前記第２の筐体とを回動自在に連結するヒンジ部と、
前記第１の筐体又は前記第２の筐体のいずれかに設けられた回路基板と、
前記回路基板に設けられた無線回路と、
前記ヒンジ部に配置されたアンテナ素子と、
前記無線回路に接続され前記アンテナ素子に給電する給電部と、
折り畳んだとき筐体厚み方向において重なるように前記第１の筐体及び前記第２の筐体の前記ヒンジ部側に配置された複数の導電体と、
を備えた携帯無線機。 A first housing composed of a non-conductor;
A second housing made of a non-conductor;
A hinge portion that rotatably connects the first housing and the second housing;
A circuit board provided in either the first casing or the second casing;
A radio circuit provided on the circuit board;
An antenna element disposed in the hinge portion;
A power feeding unit that is connected to the radio circuit and feeds power to the antenna element;
A plurality of conductors arranged on the hinge part side of the first casing and the second casing so as to overlap in the thickness direction of the casing when folded;
A portable radio equipped with 前記複数の導電体の各々は、所定の面積で構成される請求項１に記載の携帯無線機。   The portable wireless device according to claim 1, wherein each of the plurality of conductors has a predetermined area. 前記複数の導電体の各々は、筐体短手方向における前記回路基板の幅と略等しい幅で構成される請求項１又は請求項２に記載の携帯無線機。   The portable wireless device according to claim 1 or 2, wherein each of the plurality of conductors is configured to have a width substantially equal to a width of the circuit board in a lateral direction of the housing. 前記複数の導電体の各々は、前記回路基板のグランドパターンと直接あるいはリアクタンス素子を介して電気的に接続される請求項１乃至請求項３のいずれかに記載の携帯無線機。   4. The portable wireless device according to claim 1, wherein each of the plurality of conductors is electrically connected to a ground pattern of the circuit board directly or via a reactance element. 5.
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JP2006033310A (en) * 2004-07-15 2006-02-02 Toshiba Corp Wireless apparatus
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