JPH05327331A - Printed antenna - Google Patents

Printed antenna

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Publication number
JPH05327331A
JPH05327331A JP12236392A JP12236392A JPH05327331A JP H05327331 A JPH05327331 A JP H05327331A JP 12236392 A JP12236392 A JP 12236392A JP 12236392 A JP12236392 A JP 12236392A JP H05327331 A JPH05327331 A JP H05327331A
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JP
Japan
Prior art keywords
antenna
conductor layer
conductor
printed
feeding
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.)
Pending
Application number
JP12236392A
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Japanese (ja)
Inventor
Hiromichi Goto
Atsushi Kobayashi
敦 小林
弘通 後藤
Original Assignee
Matsushita Electric Works Ltd
松下電工株式会社
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Publication date
Application filed by Matsushita Electric Works Ltd, 松下電工株式会社 filed Critical Matsushita Electric Works Ltd
Priority to JP12236392A priority Critical patent/JPH05327331A/en
Publication of JPH05327331A publication Critical patent/JPH05327331A/en
Application status is Pending legal-status Critical

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Abstract

PURPOSE: To provide a printed antenna which enlarges the band of an impedance characteristic and reduces the inserting loss of a matching means.
CONSTITUTION: For this printed antenna, a ground conductor layer 3 is formed on the lower face by using a printed wiring board, and antenna conductor layers 1 to be apex part capacity loading boards 8 are formed on both sides of the upper face. A parallel resonance circuit composed of an inductance conductor part 6 and a capacitance conductor part 7 is provided on the upper face of the printed wiring board between the antenna conductor layers 1 and 1 on both sides and integrated with an antenna element part. Feeding to a pair of feeding points parallelly connecting the parallel resonance circuit is performed by feeding conductors 4 and 4 passed from patterns 1a and 1a integrally linked to the antenna conductor layers 1 and 1 through a dielectric layer 2 and ground conductor layer 3.
COPYRIGHT: (C)1993,JPO&Japio

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、移動体通信機器への組み込みに適した小型のプリントアンテナに関するものである。 The present invention relates to relates to small printed antenna which is suitable for incorporation into mobile communication device.

【0002】 [0002]

【従来の技術】プリントアンテナはフォトエッチング技術により、電気的特性の再現性が良好なプリント配線基板を用いたマイクロストリップ形アンテナであって、一枚の多層銅張積層プリント配線基板で構成されたプリントアンテナは、小型で、しかも特性が均一で量産に適しているので、移動体通信用機器に広く使用されている。 2. Description of the Prior Art Printed antennas photoetching technique, a microstrip type antenna reproducibility with excellent printed circuit board in electrical characteristics, constituted by a single multilayer copper-clad laminate printed circuit board printed antenna are small, and since the characteristics are suitable for mass production with uniform, widely used in mobile communication equipment.

【0003】このようなプリントアンテナは基本的には、図9〜図11に示すようにアンテナ導体層1、誘電体層2、アース導体層3、給電導体4とで構成されており、図9に示すプリントアンテナは、非接地型アンテナ素子部を有するプリントアンテナの例を示しており、この図示例の場合スルーホール或いは給電ピンからなる給電導体4、4をアンテナ導体層1から、誘電体層2、アース導体層3を貫通させて配設してある。 [0003] Such printed antenna Basically, the antenna conductor layer 1 as shown in FIGS. 9 to 11, the dielectric layer 2, the ground conductor layer 3 is composed by the feeding conductor 4, 9 printed antenna shown in shows an example of a printed antenna having a non-grounded type antenna element, the feed conductor 4, 4 made of the case through holes or feed pin of the illustrated example the antenna conductor layer 1, the dielectric layer 2, are disposed by penetrating through the ground conductor layer 3.

【0004】図10に示すプリントアンテナは、接地型アンテナ素子部を有するアンテナの例を示している。 [0004] printed antenna shown in FIG. 10 shows an example of an antenna having a ground antenna element. また図11は、短縮型逆Fアンテナ素子部を有するプリントアンテナの例を示しており、このプリントアンテナは給電導体4の他に、アンテナ導体層3とアース導体層3 The Figure 11 shows an example of a printed antenna having a truncated inverted F antenna element portion, the printed antenna, in addition to the feeding conductor 4, the antenna conductor layer 3 and the ground conductor layer 3
とを電気的に接続する接地導体5が、スールホール或いは導体ピンにより追加されている点で図10のアンテナと異なるものである。 Ground conductors 5 for electrically connecting the door is in an antenna different from the FIG. 10 in that it is added by Sur holes or conductive pin.

【0005】上記いずれのプリントアンテナの場合も、 [0005] In the case of any of the above printed antenna,
アンテナ素子部に、インダクタンス素子、キャパシタンス素子を装荷した例を示している。 The antenna element section, an inductance element, an example loaded with capacitance elements. これら装荷により、 These loading,
アンテナ外形は小型になるが、アンテナ特性は狭帯域になる。 Antenna contour is small, but the antenna characteristics becomes narrow band. 一方プリントアンテナはフォトエッチング技術によって電気的特性の再現性が良好で、ばらつきが少ないため、若干狭帯域であっても実用が可能となり、上記のように装荷する場合が多い。 Meanwhile printed antenna is good reproducibility of electrical characteristics by photoetching techniques, since variation is small, even somewhat narrow band enables practical use, often loading as above.

【0006】ところが、近年移動体通信の需要の増大により、周波数割当バンド幅が広がり、特に携帯電話機用アンテナの場合、超小型化に加えて広帯域化の要望が強まって来た。 [0006] However, due to the increase in recent years of mobile communication demand, spread the frequency allocation band width, especially in the case of a mobile phone antenna, demand for broadband in addition to the ultra-miniaturization came stronger. 従来、アンテナ広帯域化の手段としては、 Conventionally, as a means of antenna broadband is,
サセプタンス補償法が用いられてきた。 Susceptance compensation method has been used. このサセプタンス補償法について簡単に説明する。 It will be briefly described this susceptance compensation method. 通常のアンテナインピーダンスの周波数軌跡は共振点付近の周波数では直列共振回路のインピーダンス軌跡と類似している。 Frequency trajectory of the normal of the antenna impedance is similar to the impedance locus of the series resonant circuit at a frequency near the resonance point. 図12 Figure 12
(a)はアンテナインピーダンスのリアクタンス成分の周波数特性を示すもので、共振周波数f 0を中心に、低周波数側では、キャパシタンス成分を打ち消す必要がある。 (A) shows the frequency characteristic of the reactance component of the antenna impedance around the resonant frequency f 0, the low frequency side, it is necessary to cancel the capacitance component.

【0007】図12(b)は前記アンテナと同一の周波数f 0で共振する並列共振回路のリアクタンス成分の周波数特性を示す図である。 [0007] FIG. 12 (b) is a graph showing the frequency characteristic of the reactance component of the parallel resonant circuit that resonates at the same frequency f 0 and the antenna. この場合は、共振周波数f 0 In this case, the resonance frequency f 0
より低い周波数側では、インダクタンス成分、高い周波数側ではキャパシタンス成分を呈する。 At lower frequency side, it exhibits a capacitance component is an inductance component, high-frequency side. 従って、アンテナの給電点と並列に、並列共振回路を挿入すれば、リアクタンス成分の打ち消しが可能になることが分かる。 Therefore, in parallel with the feed point of the antenna, by inserting a parallel resonant circuit, it can be seen that it is possible to cancel the reactance component. 例えば、低い周波数側の代表周波数としてf 1 、高い周波数側の代表周波数としてf 2を選び、夫々の周波数において、リアクタンスの絶対値が等しく符号が逆になるように並列共振回路のQを選ぶと良い。 For example, f 1 as a representative frequency of a low frequency side, select f 2 as a representative frequency of a high frequency side, the frequency of each, if the absolute value is equal to the sign of the reactance chooses the Q of the parallel resonant circuit so as to reverse good. この場合図12 In this case Figure 12
(a)と図12(b)のリアクタンスの並列合成であるから、夫々、サセプタンス成分に変換して(逆数をとって)加算し、再びリアクタンス成分に変換すれば良く、 Because it is the parallel combination of reactance shown in FIG. 12 (b) and (a), respectively, (taking the reciprocal) is converted into susceptance component is added, may be converted back to reactance component,
図12(c)はその合成結果を示している。 FIG. 12 (c) shows the combined results. 合成後のリアクタンス成分は、十分広帯域に亘って低い値となっており、広帯域化されていることがわかる。 Reactance component after synthesis has a low value over a sufficiently wide band, it can be seen that the broadband.

【0008】 [0008]

【発明が解決しようとする課題】従来、上述の整合回路部分は、アンテナ素子部とは別個に、回路部に追加されていた。 BRIEF Problem to be Solved] Conventionally, the matching circuit portion of the aforementioned, separately from the antenna element section, have been added to the circuit portion. そのため、アンテナ素子製作後、回路部との総合組み合わせ調整が必要となるという欠点があった。 Therefore, after the antenna element fabrication, it has a drawback that it is necessary to comprehensively combined adjustment of the circuit portion. また回路部は一般に低Q設計となっているため、アンテ素子ナ部と異なり、誘電体損失の多い基板材料を使うことが多いが、このような場合広帯域整合のための回路部での損失が生ずる欠点があった。 Since that is the circuit unit is generally low Q design, unlike the antenna element na unit, it is often used more substrate material dielectric loss, the loss in the circuit portion for such case Broadband Matching there occurs drawbacks.

【0009】本発明は上述の問題点に鑑みて為されたもので、その目的とするところはインピーダンス特性を広帯域化し、通信の多チャンネル化に対応するとともに、 [0009] The present invention has been made in view of the above problems, along with it is an object of the present invention the impedance characteristic and broadband, corresponding to multiple channels of communication,
製造歩留りを改善し、また整合手段の挿入損失を少なくしたプリントアンテナを提供するにある。 To improve the manufacturing yield and to provide a less were printed antenna insertion loss of the matching means.

【0010】 [0010]

【課題を解決するための手段】上記目的を達成するために、請求項1の発明は誘電体損失が低いプリント配線基板の一方の面にアース導体層を設けるとともにアース導体層に対向する他方の面にアンテナ導体層を設け、少なくとも、前記アンテナ導体層から前記アース導体層を貫通してアンテナ背面に至る給電導体を設けたプリントアンテナにおいて、前記アンテナ導体層の一部に並列共振回路からなる整合手段を設けて、前記アンテナ導体層と前記給電導体との接続部に前記整合手段の少なくとも一部を電気的に接続したものである。 To achieve the above object, according to the solution to ## of claim 1 invention the other facing the ground conductor layer together with the dielectric loss provided one surface to the ground conductor layer of the lower printed circuit board the antenna conductor layer provided on the surface, at least, in the printed antenna feeding conductor provided extending in through the antenna back to the ground conductor layer from the antenna conductor layer, made of a parallel resonant circuit portion of the antenna conductor layer matching and a means is obtained by electrically connecting at least a portion of said alignment means in the connection portion between the antenna conductor layer and the power supply conductor.

【0011】尚請求項2の発明のようにアンテナ導体層に、ダイポール型アンテナ素子を形成し、該ダイポール型アンテナ素子に給電する一対の給電導体に対して並列共振回路を並列に接続しても良く、また請求項3の発明のようにアンテナ導体層に、モノポール型アンテナ素子を形成し、該モノポール型アンテナ素子に給電する1つの給電導体に対し、一端を接地した並列共振回路の他端を接続してもよい。 [0011] Note that the antenna conductor layer as in the invention of claim 2, forming a dipole antenna element, be connected parallel resonance circuit in parallel to the pair of power supply conductors for supplying power to the dipole antenna elements well, also in the antenna conductor layer as in the invention of claim 3, to form a monopole antenna element, for one feed conductor for feeding to the monopole antenna element, other parallel resonance circuit is grounded at one end it may be connected to the end.

【0012】 [0012]

【作用】而して本発明の構成によれば、アンテナ素子部のみで構成されていたプリントアンテナにおいて、アンテナ導体層の一部に並列共振回路からなる整合手段を設けて、前記アンテナ導体層と前記給電導体との接続部に前記整合手段の少なくとも一部を電気的に接続したので、アンテナ素子部と整合手段とが一体となってアンテナ素子部自体でインピーダンス特性の広帯域化が図れ、 SUMMARY OF] According to the Thus to the present invention, in a printed antenna that is constituted only by the antenna element, provided with aligning means comprising a parallel resonant circuit portion of the antenna conductor layer, and the antenna conductor layer Having electrically connecting at least a portion of said alignment means in the connecting part between the feed conductor, and matching means the antenna element portion Hakare the band of the impedance characteristics in the antenna element itself together,
その結果多チャンネル化に対応することが可能となり、 It is possible to correspond to a result multi-channel,
その上アンテナ素子部の製作後の組み合わせ調整が不要で、製造歩留りも改善される。 Unnecessary combinations adjustment after fabrication of the upper antenna element section, is also improved manufacturing yield.

【0013】またアンテナ素子部の誘電体損失が低いプリント配線基板に整合手段が設けられることになるため、整合手段の挿入損失が少なく、アンテナ利得も減少しない。 [0013] For that would dielectric loss of the antenna element portion is provided is lower printed wiring board in matching means, less insertion loss of the matching means, the antenna gain is also not reduced.

【0014】 [0014]

【実施例】以下本発明を実施例により説明する。 BRIEF DESCRIPTION by examples present invention follows. (実施例1)本実施例は図1に示すように非接地型(ダイポール型)のアンテナを構成しており、両面銅箔積層のプリント配線基板を用いて、下面にはアース導体層3 (Example 1) This example ungrounded as shown in FIG. 1 constitute the antenna (dipole), using the printed wiring board of double-sided copper foil laminated, the lower surface ground conductor layer 3
を、上面の両側には頂部容量装荷板8となるアンテナ導体層1を夫々形成し、このアンテナ導体層1、1の間のプリント配線基板の上面のジグザグ状に形成した導体で構成したインダクタンス導体部6及び櫛歯状の導体で構成したキャパシタンス導体部7からなる並列共振回路を設けている。 And on both sides of the upper surface of the antenna conductor layer 1 as the top capacitance-loaded plate 8 is formed respectively, the inductance conductor constituted by a conductor formed on the upper surface of the zigzag printed circuit board between the antenna conductor layers 1,1 a parallel resonant circuit consisting of parts 6 and the comb-shaped capacitor conductor portion 7 constituted by a conductor is provided. この並列共振回路は整合手段を構成し、図2に示す電気的等価回路において、一対の給電点間に並列に電気的に接続している。 The parallel resonance circuit constitutes a matching means, the electrical equivalent circuit shown in FIG. 2, are electrically connected in parallel between a pair of feeding points. 給電点への給電はアンテナ導体層1、1に一体連結されたパターン1a、1aから、誘電体層2、アース導体層3を貫通させたスルーホール或いは給電ピンからなる給電導体4、4により行なう。 Performing pattern 1a feed is integrally connected to the antenna conductor layers 1,1 to the feeding point, from 1a, the dielectric layer 2, the feeding conductor 4, 4 consisting of a through-hole or feed pins to penetrate the ground conductor layer 3 .

【0015】(実施例2)本実施例は、図3に示すように接地型(モノポール型)のアンテナを構成しており、 [0015] (Example 2) This example constitutes an antenna of a grounding type (monopole-type) As shown in FIG. 3,
両面銅箔積層のプリント配線基板を用いて、下面にはアース導体層3を、上面の片側には頂部容量装荷板12となるアンテナ導体層1を形成し、このアンテナ導体層1 Using printed wiring board of double-sided copper foil laminated, the grounding conductor layer 3 on the lower surface, on one side of the upper surface forming the antenna conductor layer 1 as the top capacitance loading plate 12, the antenna conductor layer 1
の側方のプリント配線基板の上面にはインダクタンス導体部11、キャパシタンス導体部10からなる並列共振回路を設けている。 On the upper surface of the printed wiring board on the side of the inductance conductor portion 11 is provided with a parallel resonant circuit consisting of the capacitance conductor part 10. そして並列共振回路の一端は誘電体層2を貫通させた接地ピン若しくはスルーホールからなる接地導体9を介してアース導体層3に電気的に接続し、他端をアンテナ導体層1に一体連結されたパターン1aの給電点の近傍に接続している。 One end of the parallel resonance circuit is electrically connected to the ground conductor layer 3 through the ground conductor 9 made from the ground pin or through hole was through the dielectric layer 2, it is integrally connected at the other end to the antenna conductor layer 1 It is connected near the feeding point of the pattern 1a. 給電点への給電はパターン1aから、誘電体層2、アース導体層3を貫通させたスルーホール或いは給電ピンからなる給電導体4 From feeding to feeding point pattern 1a, the dielectric layer 2, the feed conductor 4 consisting of a through-hole or feed pins to penetrate the ground conductor layer 3
により行なう。 Performed by. 図4は本実施例の電気的等価回路を示す。 Figure 4 shows an electrical equivalent circuit of this embodiment.

【0016】(実施例3)本実施例は、図5に示すように逆F型アンテナを構成しており、両面銅箔積層のプリント配線基板を用いて、下面にはアース導体層3を、上面の片側には頂部容量装荷板15となるアンテナ導体層1を形成し、このアンテナ導体層1の側方のプリント配線基板の上面にはアンテナ素子部の一部を兼ねるインダクタンス導体部13及びキャパシタンス導体部14からなる並列共振回路を設けている。 [0016] (Embodiment 3) This embodiment constitutes a reverse F type antenna as shown in FIG. 5, using the printed wiring board of double-sided copper foil laminated, the grounding conductor layer 3 on the lower surface, on one side of the upper surface forming the antenna conductor layer 1 as the top capacitance loading plate 15, the inductance conductor portion 13 and the capacitance on the upper surface of the printed wiring board on the side of the antenna conductor layer 1 also serves as a part of the antenna element portion It is provided with a parallel resonant circuit consisting of the conductor portion 14. この並列共振回路は、 The parallel resonant circuit,
図6に電気的的等価回路で示すようにアンテナ導体層1 Antenna conductor layer 1 as shown by the electrical equivalent circuit in FIG. 6
に一体連結されたパターン1aの接地点と、給電点との間に挿入接続している。 It is inserted and connected between the ground point of the integral connecting pattern 1a, the feeding point.

【0017】アース導体層3と、接地点との間は誘電体層2を貫通させたスルーホール又は接地ピンからなる接地導体5で接続しており、この接地導体5はインダクタンス成分となる。 [0017] The ground conductor layer 3, between the ground point is connected with the grounding conductor 5 consisting of a through-hole or the ground pin was through the dielectric layer 2, the ground conductor 5 is an inductance component. また給電点への給電は、実施例1、実施例2と同様にパターン1aから、誘電体層2、アース導体層3を貫通させたスルーホール或いは給電ピンからなる給電導体4により行なう。 The power supply to the feeding point, Example 1, carried out from similarly pattern 1a as in Example 2, the dielectric layer 2, the feeding conductor 4 consisting of a through-hole or feed pins to penetrate the ground conductor layer 3.

【0018】本実施例の構成において、アンテナ素子部の寸法を35×15×5mmの大きさとし、誘電率が3.5で設計周波数が820MHzのプリントアンテナを形成した場合のインピーダンススミス図表及びVSW [0018] In the structure of this embodiment, the dimensions of the antenna element portion of 35 × 15 × 5 mm size Satoshi, impedance Smith chart and VSW when permittivity design frequency of 3.5 to form a printed antenna for 820MHz
R特性は夫々図7、図8に示すようになった。 R characteristics respectively 7, now shown in FIG. つまり実施例のように並列共振回路からなる整合手段を一体に設けなかった広帯域化前の帯域幅はVSWR=2にて19 That bandwidth before broadband the aligning means comprising a parallel resonant circuit is not provided integrally as in the example at VSWR = 2 19
MHzであったが、並列共振回路からなる整合手段を設けた本実施例の場合は、図8から分かるようにVSWR Was the MHz, the case of this embodiment in which a matching means comprising a parallel resonant circuit, VSWR as can be seen from FIG. 8
=2にて40MHzという2倍の広帯域化が達成できた。 = 2 times the bandwidth of 40MHz that could be achieved by 2. またアンテナ利得はプラス2.3dBiで、広帯域化前に比較して、0.3dB程度の減少の留まっている。 The antenna gain is positive 2.3DBi, compared to the prior broadband, it remains a reduction of about 0.3 dB.

【0019】尚上記各実施例1〜3では整合手段を構成する並列共振回路を、アンテナ導体層1と同一平面内に設けた構成となっているが、三層プリント配線基板を用いて内層に並列共振回路を形成するようにしても良く、 [0019] Note that a parallel resonant circuit constituting the alignment means in the above embodiments 1 to 3, has a structure in which the antenna conductor layer 1 and the same plane, but the inner layer with a three-layer printed circuit board It may be form a parallel resonant circuit,
本発明は実施例1〜3の構成に特定に限定されない。 The present invention is not limited to a particular to the configuration of Example 1-3.

【0020】 [0020]

【発明の効果】本発明は、アンテナ導体層の一部に並列共振回路からなる整合手段を設けて、前記アンテナ導体層と前記給電導体との接続部に前記整合手段の少なくとも一部を電気的に接続したので、従来アンテナ素子部のみで構成されていたプリントアンテナにおいて、アンテナ素子部と整合手段とが一体となってアンテナ素子部自体でインピーダンス特性の広帯域化が図れ、その結果て多チャンネル化に対応することが可能となり、またアンテナ素子部と整合手段とが一体化されるため設計評価も容易な上に、製作後の組み合わせ調整が不要で、製造歩留りも改善されるという効果があり、しかもアンテナ素子部の誘電体損失が低いプリント配線基板に整合手段が設けられることになるため、整合手段の挿入損失が少なく、アンテナ利得 According to the present invention, provided with a matching means comprising a parallel resonant circuit portion of the antenna conductor layer electrically at least a portion of said alignment means in the connection portion between the antenna conductor layer and the power supply conductor having connected to, conventional in the printed antenna consists only antenna element portion, and the matching means between the antenna element portion Hakare the band of the impedance characteristics in the antenna element itself together, multichannel Te result it is possible to correspond to and on an easy design evaluation for the antenna element portion and the aligning means are integrated, unnecessary combinations adjustment after fabrication, there is an effect that manufacturing yield is improved, Moreover, since that would dielectric loss of the antenna element portion is provided is lower printed wiring board in matching means, less insertion loss of the matching means, antenna gain 減少しないという効果がある。 There is an effect that does not decrease.

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

【図1】本発明の実施例1の斜視図である。 1 is a perspective view of a first embodiment of the present invention.

【図2】同上の電気的等価回路図である。 Figure 2 is an electrical equivalent circuit diagram of the same.

【図3】本発明の実施例2の斜視図である。 3 is a perspective view of a second embodiment of the present invention.

【図4】同上の電気的等価回路図である。 4 is an electrical equivalent circuit diagram of the same.

【図5】本発明の実施例3の斜視図である。 5 is a perspective view of a third embodiment of the present invention.

【図6】同上の電気的等価回路図である。 6 is an electrical equivalent circuit diagram of the same.

【図7】同上の具体的例のインピーダンススミス図表を示す説明図である。 7 is an explanatory diagram showing an impedance Smith chart of a specific example of the same.

【図8】同上の具体的例のVSWR特性図である。 8 is a VSWR characteristic view of a specific example of the same.

【図9】一従来例の斜視図である。 9 is a perspective view of a conventional example.

【図10】別の従来例の斜視図である。 It is a perspective view of FIG. 10] Another conventional example.

【図11】他の従来例の斜視図である。 11 is a perspective view of another conventional example.

【図12】本発明の原理説明図である。 12 is an explanatory view of the principle of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 アンテナ導体層 1a パターン 2 誘電体層 3 アース導体層 4 給電導体 6 インダクタンス導体部 7 キャパシタンス導体部 1 antenna conductor layer 1a pattern 2 dielectric layer 3 Ground conductor layer 4 feeding conductor 6 inductance conductor section 7 capacitance conductor portion

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】誘電体損失が低いプリント配線基板の一方の面にアース導体層を設けるとともにアース導体層に対向する他方の面にアンテナ導体層を設け、少なくとも、 1. A antenna conductor layer provided on the other surface opposite to the ground conductor layer together with the dielectric loss provided one surface to the ground conductor layer of the lower printed circuit board, at least,
    前記アンテナ導体層から前記アース導体層を貫通してアンテナ背面に至る給電導体を設けたプリントアンテナにおいて、前記アンテナ導体層の一部に並列共振回路からなる整合手段を設けて、前記アンテナ導体層と前記給電導体手段との接続部に前記整合手段の少なくとも一部を電気的に接続したことを特徴とするプリントアンテナ。 In printing the antenna power supply conductor is provided leading to through antenna back to the ground conductor layer from the antenna conductor layers, provided with aligning means comprising a parallel resonant circuit portion of the antenna conductor layer, and the antenna conductor layer printed antenna, characterized in that electrically connecting the at least a portion of said alignment means in the connecting part between the feed conductor means.
  2. 【請求項2】アンテナ導体層に、ダイポール型アンテナ素子を形成し、該ダイポール型アンテナ素子に給電する一対の給電導体に対して、並列共振回路を並列に接続したことを特徴とする請求項1記載のプリントアンテナ。 To wherein the antenna conductor layer, according to claim 1, forming a dipole antenna element, the pair of feeding conductor for supplying power to the dipole antenna elements, characterized in that to connect the parallel resonant circuit in parallel printed antenna described.
  3. 【請求項3】アンテナ導体層に、モノポール型アンテナ素子を形成し、該モノポール型アンテナ素子に給電する1つの給電導体に対し、一端を接地した並列共振回路の他端を接続したことを特徴とするプリントアンテナ。 To 3. The antenna conductor layer to form a monopole antenna element, for one feed conductor for feeding to the monopole antenna element, that is connected to the other end of the parallel resonance circuit is grounded at one end printed antenna which is characterized.
JP12236392A 1992-05-15 1992-05-15 Printed antenna Pending JPH05327331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12236392A JPH05327331A (en) 1992-05-15 1992-05-15 Printed antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12236392A JPH05327331A (en) 1992-05-15 1992-05-15 Printed antenna

Publications (1)

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JPH05327331A true JPH05327331A (en) 1993-12-10

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