JP2003309418A - Dipole antenna - Google Patents

Dipole antenna

Info

Publication number
JP2003309418A
JP2003309418A JP2002114978A JP2002114978A JP2003309418A JP 2003309418 A JP2003309418 A JP 2003309418A JP 2002114978 A JP2002114978 A JP 2002114978A JP 2002114978 A JP2002114978 A JP 2002114978A JP 2003309418 A JP2003309418 A JP 2003309418A
Authority
JP
Japan
Prior art keywords
conductor
dipole antenna
pair
dielectric substrate
radiating conductor
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.)
Withdrawn
Application number
JP2002114978A
Other languages
Japanese (ja)
Inventor
Genshu To
元珠 竇
Original Assignee
Alps Electric Co Ltd
アルプス電気株式会社
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 Alps Electric Co Ltd, アルプス電気株式会社 filed Critical Alps Electric Co Ltd
Priority to JP2002114978A priority Critical patent/JP2003309418A/en
Publication of JP2003309418A publication Critical patent/JP2003309418A/en
Application status is Withdrawn legal-status Critical

Links

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact dipole antenna the total length of which can remarkably be reduced. <P>SOLUTION: Wide conductor parts 2B, 3B wider than parts closer to feeding points 12, 13 are provided respectively to ends of a pair of radiation conductors 2, 3 placed separately to both front and rear sides of a dielectric board 1. Since the capacitance of the radiation conductors 2, 3 is thereby increased, the length of the radiation conductors 2, 3 required for resonance to a desired frequency can be reduced. Further, since the wavelength reduction effect by the dielectric board 1 is added, the total length of the dipole antenna can remarkably be reduced. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、中央給電タイプのダイポールアンテナに係り、特に、誘電体基板の板面に放射導体(放射素子)を形成して小型化を図ったダイポールアンテナに関する。 BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention relates to a central power supply type dipole antenna, in particular, to form a radiation conductor (radiating elements) on the plate surface of the dielectric substrate size of about dipole antenna which attained. 【0002】 【従来の技術】直線状に延びる導体を中央で切り離してそこから給電するという方式のダイポールアンテナは、 [0002] The dipole antenna system that feed the Related Art conductor extending linearly therefrom detached in the middle,
構成が簡単で接地導体が不要なため、実用性の高いアンテナとして各方面で広く採用されている。 Since configuration is not required simple grounding conductor, widely employed in various fields as a highly practical antennas. しかしながら、この種のアンテナは、半波長ダイポールとも称されるように、全長がλ/2(ただし、λは電波の自由空間波長)に設定されているので、使用する電波の周波数がかなり高くて波長が短い場合にも、アンテナの全長が相当長くなってしまうという不具合がある。 However, this type of antenna, as also referred to as half-wave dipole, total length lambda / 2 (although, lambda is the free space wavelength of the radio waves) which are set to, and is considerably higher radio frequencies used even when the wavelength is short, there is a problem that the entire length of the antenna becomes considerably longer. 【0003】そこで最近、このような不具合を改善するために、図3に示すようなダイポールアンテナが提案されている。 [0003] Therefore, recently, in order to improve such a problem, it is a dipole antenna, such as shown in FIG. 3 has been proposed. 同図に示す従来既知のダイポールアンテナは、セラミック等の誘電体基板10の同一面に設けられた一対の放射導体11,12と、両放射導体11,12 Conventionally known dipole antenna shown in the figure, a pair of radiation conductors 11 and 12 provided on the same surface of the dielectric substrate 10 of ceramic or the like, both radiation conductors 11 and 12
に接続された同軸ケーブル13とを備えており、この同軸ケーブル13を介して放射導体11,12に高周波信号が給電されるようになっている。 Connected and a coaxial cable 13, the high-frequency signal to the radiation conductor 11, 12 via the coaxial cable 13 is adapted to be powered on. 両放射導体11,1 Both radiating conductor 11,1
2は印刷やエッチング等の手法で形成された導体であり、その形状は略同形の長方形で直線状に延びている。 2 is a conductor formed by a technique such as printing or etching, the shape thereof extends linearly in substantially the same shape as the rectangle.
そして、これら一対の放射導体11,12の互いに近接する側の端部(全体の中央部)に同軸ケーブル13の外部導体14と内部導体15を接続して給電するようになっている。 Then, so as to supply power by connecting the outer conductor 14 and inner conductor 15 of the coaxial cable 13 to the end on the side close to each other of the pair of the radiating conductor 11, 12 (the central portion of the total). したがって、このように構成されたダイポールアンテナによれば、誘電体による波長短縮によって全長を約20%程度短縮することが可能となる。 Therefore, according to the thus constructed dipole antenna, it is possible to reduce about 20% of the overall length by a wavelength shortening by the dielectric. 【0004】 【発明が解決しようとする課題】上述したように、誘電体基板10の表面に一対の放射導体11,12を形成してなるダイポールアンテナは、全長をある程度短くすることができるが、例えば無線LAN(構内情報通信網) [0004] [SUMMARY OF THE INVENTION] As described above, dipole antenna by forming a pair of radiation conductors 11 and 12 on the surface of the dielectric substrate 10 can be shortened entire length to some degree, for example, a wireless LAN (Local Area network)
等に適用可能な携帯用のダイポールアンテナを実現するためには、全長をさらに短くしてコンパクト化を促進することが必要となる。 To achieve a dipole antenna for applicable Cell etc., it is necessary to promote compaction and further reduce the overall length. 【0005】本発明は、このような従来技術の実情に鑑みてなされたもので、その目的は、全長を大幅に短縮することが可能なダイポールアンテナを提供することにある。 [0005] The present invention has been made in view of the drawbacks inherent in the related art, an object thereof is to provide a dipole antenna capable of significantly reducing the overall length. 【0006】 【課題を解決するための手段】上述した目的を達成するために、本発明のダイポールアンテナでは、誘電体基板と、この誘電体基板の板面に設けられた一対の略同形状の放射導体と、これら一対の放射導体の互いに近接する側の端部に接続された給電線とを備え、前記一対の放射導体の前記端部とは逆側の末端部にそれぞれ、給電点に近い部分よりも幅広な幅広導体部を設ける構成とした。 [0006] [Means for Solving the Problems] To achieve the above object, in the dipole antenna of the present invention, a dielectric substrate, a pair of substantially the same shape provided on the plate surface of the dielectric substrate a radiation conductor, and a feeder line connected to the end on the side close to each other of the pair of the radiating conductor, each end of the opposite side to the end portion of the pair of the radiating conductor, close to the feeding point and configured to provide a wide wide conductor section than the portion. 【0007】かかる構成において、ダイポールアンテナの両放射導体の末端部は、電圧が大きく変化する容量領域なので、これら末端部で導体を幅広に形成するとキャパシタンスが大きくなる。 [0007] In this configuration, end portions of the radiating conductors of the dipole antenna, because the capacity region in which the voltage varies greatly, the capacitance increases when the is formed wider conductors in these end. そして、一般的に共振回路では、キャパシタンスが大きくなると共振周波数が小さくなるので、所望の周波数に共振させるうえで必要となる放射導体の長さを短くすることができる。 Then, in the general resonant circuit, since the resonance frequency capacitance increases decreases, it is possible to shorten the length of the radiation conductor that is required for resonating to a desired frequency. その際、一対の放射導体を誘電体基板の片面とその裏面とに振り分けて形成し、該誘電体基板に設けたスルーホールを介して給電線を一方の放射導体に接続する構成にしておけば、 At that time, formed by distributing a pair of radiating conductor on one surface of the dielectric substrate and its rear surface via through holes provided in the dielectric substrate if in the configuration of connecting the feed line to one of the radiating conductor ,
各放射導体の給電点を長さ方向に離間させなくても短絡が防止できるので、全長を一層短縮することができて好ましい。 Since short even without separating the feed point of the radiating conductor in the longitudinal direction can be prevented, preferably to be able to further shorten the overall length. 【0008】 【発明の実施の形態】以下、発明の実施の形態について図面を参照して説明すると、図1は本発明の実施形態例に係るダイポールアンテナの平面図である。 DETAILED DESCRIPTION OF THE INVENTION Hereinafter, with reference to the drawings showing preferred embodiments of the invention, FIG. 1 is a plan view of a dipole antenna according to an embodiment of the present invention. 【0009】図1に示すダイポールアンテナは、セラミック等からなる誘電体基板1と、この誘電体基板1の片面と裏面に分けて形成された一対の放射導体2,3と、 [0009] Dipole antenna shown in FIG. 1 includes a dielectric substrate 1 made of a ceramic or the like, a pair of radiation conductors 2, 3 which are formed separately on one side and the back surface of the dielectric substrate 1,
これら両放射導体2,3に接続された同軸ケーブル4とを備えており、図示せぬ送受信回路にコネクタ5を接続することにより、給電線である同軸ケーブル4を介して放射導体2,3に高周波信号が給電されるようになっている。 And a coaxial cable 4 connected to the both radiation conductor 2 and 3, by connecting the connector 5 to the reception circuit, not shown, the radiation conductor 2 via the coaxial cable 4 is feeder line RF signal is adapted to be powered. 一対の放射導体2,3は印刷やエッチング等の手法で同形状に形成された導体であり、その形状は基端側(互いに近接する側)が幅狭で末端側が幅広に設定されている。 A pair of radiation conductors 2, 3 are formed in the same shape by a technique such as printing or etching conductive, its shape is distal base end side (the side close to each other) is in the narrow is set wider. すなわち、一方の放射導体2は、基端側の帯状導体部2Aと末端側の幅広導体部2Bとからなり、これと同形状の他方の放射導体3は、基端側の帯状導体部3 That is, one of the radiation conductor 2 is composed of a wide conductor part 2B of the strip conductor portion 2A and the end side of the base end side, this and other radiation conductor 3 of the same shape, strip conductor portion 3 of the base end side
Aと末端側の幅広導体部3Bとからなる。 Consisting of a wide conductor part 3B of the A and terminal. 放射導体2の基端側の端部には、同軸ケーブル4の外部導体に接続された給電点7が設けられており、また、放射導体3の基端側の端部には、誘電体基板1のスルーホール6を介して同軸ケーブル4の内部導体に接続された給電点8が設けられている。 At the end of the base end side of the radiation conductor 2, the feeding point 7 connected to the outer conductor of the coaxial cable 4 is provided, also, the end portion of the proximal side of the radiating conductor 3, dielectric substrate feed point 8 connected to the internal conductor of the coaxial cable 4 is provided through one of the through-hole 6. 【0010】一対の放射導体2,3は同形状なので、一方の放射導体2について、その形状を詳しく説明する。 [0010] a pair of radiation conductors 2 and 3 because the same shape, for one of the radiation conductor 2, illustrating its shape details.
いま、本実施形態例に係るダイポールアンテナが使用する電波の自由空間波長をλ、帯状導体部2Aの長さ寸法をa、幅広導体部2Bの長さ寸法をbとすると、 (λ/16)≦a≦(λ/8)、(λ/30)≦b≦ Now, the free space wavelength of the radio wave dipole antenna according to the present embodiment uses lambda, the length of the strip conductor portion 2A a, when the length of the wide conductor part 2B and b, (λ / 16) ≦ a ≦ (λ / 8), (λ / 30) ≦ b ≦
(λ/8) なる条件式を満足すれば良く、例えばbの値をλ/16 (Lambda / 8) may be satisfy the condition, the value of example b lambda / 16
程度に設定しておけば好ましい。 The preferred if you set the degree. また、帯状導体部2A Further, the strip conductor part 2A
の幅寸法をc、幅広導体部2Bの幅寸法をdとすると、 c<(λ/10)、3c≦d≦(λ/2) なる条件式を満足すれば良く、例えばcの値をλ/13 The width c, and the width dimension of the wide conductor part 2B and d, c <(λ / 10), may be satisfied 3c ≦ d ≦ (λ / 2) The condition, for example, the value of c lambda of / 13
程度に設定しておけば好ましい。 The preferred if you set the degree. 具体例として、5.2 As a specific example, 5.2
GHzの電波を送受信する場合、λの値が約58mmなので、bを約4mm、cを約2mm、aを4〜7mm、 For sending and receiving radio waves GHz, since the value of about 58mm of lambda, about 4mm to b, about 2mm to c, and a 4 to 7 mm,
dを6〜29mmに設定しておけば良い。 The d may be set to 6~29mm. 【0011】このように構成されたダイポールアンテナは、放射導体2,3の各末端部に幅広導体部2B,3B [0011] The thus-configured dipole antenna, the wide conductor part 2B to each end of the radiation conductor 2,3, 3B
が設けてあるので、キャパシタンスが大きくなっている。 Because is provided, the capacitance is increased. そして、一般的に共振回路では、キャパシタンスが大きくなると共振周波数が小さくなるので、所望の周波数に共振させるうえで必要となる放射導体2,3の長さを短くすることができる。 Then, in the general resonant circuit, since the resonance frequency capacitance increases decreases, it is possible to shorten the length of the radiation conductor 2 that is required for resonating to a desired frequency. また、本実施形態例では、一対の放射導体2,3が誘電体基板1の片面とその裏面とに振り分けて形成してあるので、各放射導体2,3の給電点7,8どうしは長さ方向にずらしていなくても短絡の心配がなく、それゆえ、信頼性を損なうことなく放射導体2の末端から放射導体3の末端までの長さ寸法を短縮することができる。 Further, in this embodiment, the pair of the radiating conductor 2 and 3 is formed by distributing the single-sided and the rear surface of the dielectric substrate 1, and if the feeding point 7 and 8 of the radiation conductors 2, 3 is the length is no fear of a short circuit even if not shifted in the direction, therefore, it is possible to shorten the length of the to the end of the radiation conductor 3 from the end of the radiation conductor 2 without deteriorating reliability. さらに、誘電体基板1の波長短縮効果も加味されるので、結局、このダイポールアンテナは全長をかなり短くすることができ、例えば使用する電波の周波数が無線LAN対応の5.2GHzの場合、全長を2cm程度に抑えることが可能となり、携帯用アンテナとして好適なダイポールアンテナを実現できる。 Further, since the wavelength shortening effect of the dielectric substrate 1 is also taken into account, after all, the dipole antenna can be considerably shorter overall length, for example, when the frequency of radio waves used by the wireless LAN of 5.2 GHz, a total length it is possible to suppress to about 2 cm, it can be realized a suitable dipole antenna as a portable antenna. 【0012】なお、上記実施形態例では、放射導体2, [0012] In the above embodiment, the radiation conductor 2,
3の幅広導体部2B,3Bを方形に形成した場合について説明したが、図2(a)や図2(b)に示すように、 3 of the wide conductor part 2B, has been described as being formed of 3B square, as shown in FIG. 2 (a) and FIG. 2 (b), the
幅広導体部2B,3Bを円形や菱形に形成しても良い。 Wide conductor portion 2B, and 3B may be formed in a circular or rhombic.
また、図2(c)に示すように、各放射導体2,3を基端側から末端側へ向かって漸次幅広となる三角形状に形成しても良い。 Further, as shown in FIG. 2 (c), it may be formed gradually triangular shape which becomes wider toward the distal side the radiation conductors 2 and 3 from the base end side. 【0013】 【発明の効果】本発明は、以上説明したような形態で実施され、以下に記載されるような効果を奏する。 [0013] The present invention is implemented in the form as described above, an effect as described below. 【0014】誘電体基板の板面に配設される一対の放射導体(放射素子)の各末端部に、給電点に近い部分よりも幅広な幅広導体部を設けたダイポールアンテナなので、放射導体のキャパシタンスが増大して、所望の周波数に共振させるうえで必要となる放射導体の長さを短くすることができる。 [0014] each end of the pair of radiation conductors arranged on the plate surface of the dielectric substrate (radiating elements), since the die pole antenna than the portion near to the feeding point provided wide wide conductor part, the radiating conductor and capacitance is increased, it is possible to shorten the length of the radiation conductor that is required for resonating to a desired frequency. また、誘電体基板による波長短縮効果も加味されるので、全長を大幅に短縮できるコンパクトなダイポールアンテナが得られる。 Further, since it is also considered wavelength shortening effect by the dielectric substrate, a compact dipole antenna can be greatly shortened overall length is obtained. 【0015】さらに、一対の放射導体を誘電体基板の片面とその裏面とに振り分けて形成する構成にすれば、各放射導体の給電点を長さ方向に離間させなくても短絡が防止できるので、ダイポールアンテナの全長を一層短縮することができる。 Furthermore, if the structure formed by distributing a pair of radiating conductor on one surface of the dielectric substrate and the rear surface thereof, since a short circuit even without separating the feed point of the radiating conductor in the longitudinal direction can be prevented , the total length of the dipole antenna can be further reduced.

【図面の簡単な説明】 【図1】本発明の実施形態例に係るダイポールアンテナの平面図である。 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a dipole antenna according to an embodiment of the present invention. 【図2】放射導体の変形例を示す説明図である。 FIG. 2 is an explanatory view showing a modification of the radiating conductor. 【図3】従来提案に係るダイポールアンテナの平面図である。 3 is a plan view of a dipole antenna according to the prior art proposals. 【符号の説明】 1 誘電体基板2,3 放射導体2A,3A 帯状導体部2B,3b 幅広導体部4 同軸ケーブル(給電線) 6 スルーホール7,8 給電点 [Reference Numerals] 1 dielectric substrates 2 and 3 the radiation conductor 2A, 3A strip conductor portion 2B, 3b wide conductor portion 4 a coaxial cable (feed line) 6 through holes 7 and 8 feeding point

Claims (1)

  1. 【特許請求の範囲】 【請求項1】 誘電体基板と、この誘電体基板の板面に設けられた一対の略同形状の放射導体と、これら一対の放射導体の互いに近接する側の端部に接続された給電線とを備え、前記一対の放射導体の前記端部とは逆側の末端部にそれぞれ、給電点に近い部分よりも幅広な幅広導体部を設けたことを特徴とするダイポールアンテナ。 Claims 1. A dielectric substrate, and the dielectric radiating conductor pair of substantially the same shape provided on the plate surface of the substrate, the end portion on the side close to each other of the pair of the radiating conductor and a connected feeder lines, dipole, characterized in that the the said end portions of the pair of the radiating conductor each end of the opposite side, provided with a wide wide conductor section than the portion near to the feeding point antenna. 【請求項2】 請求項1の記載において、前記一対の放射導体を前記誘電体基板の片面とその裏面とに振り分けて形成し、該誘電体基板に設けたスルーホールを介して前記給電線を一方の放射導体に接続したことを特徴とするダイポールアンテナ。 2. A device according to claim 1, the pair of the radiating conductor is formed by distributing the single-sided and the rear surface of the dielectric substrate, said feed line via a through hole provided in the dielectric substrate dipole antenna, characterized in that connected to one of the radiating conductor.
JP2002114978A 2002-04-17 2002-04-17 Dipole antenna Withdrawn JP2003309418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002114978A JP2003309418A (en) 2002-04-17 2002-04-17 Dipole antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002114978A JP2003309418A (en) 2002-04-17 2002-04-17 Dipole antenna

Publications (1)

Publication Number Publication Date
JP2003309418A true JP2003309418A (en) 2003-10-31

Family

ID=29396551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002114978A Withdrawn JP2003309418A (en) 2002-04-17 2002-04-17 Dipole antenna

Country Status (1)

Country Link
JP (1) JP2003309418A (en)

Cited By (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069441A1 (en) * 2004-01-16 2005-07-28 Tdk Corporation Module substrate with antenna and radio module employing it
WO2007122870A1 (en) * 2006-04-10 2007-11-01 Murata Manufacturing Co., Ltd. Wireless ic device
JP2009153146A (en) * 2004-06-11 2009-07-09 Hitachi Ltd Ic tag for radio frequency
US7659863B2 (en) 2005-03-17 2010-02-09 Fujitsu Limited Tag antenna
US7762472B2 (en) 2007-07-04 2010-07-27 Murata Manufacturing Co., Ltd Wireless IC device
US7764928B2 (en) 2006-01-19 2010-07-27 Murata Manufacturing Co., Ltd. Wireless IC device and component for 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
JP2010268023A (en) * 2009-05-12 2010-11-25 Toppan Printing Co Ltd Ic tag
US7857230B2 (en) 2007-07-18 2010-12-28 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
US7871008B2 (en) 2008-06-25 2011-01-18 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
JP2011055466A (en) * 2009-08-05 2011-03-17 Nippon Antenna Co Ltd Antenna, and antenna device
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
US7931206B2 (en) 2007-05-10 2011-04-26 Murata Manufacturing Co., Ltd. Wireless IC device
US7948445B2 (en) 2008-02-18 2011-05-24 Nec Corporation Wideband antenna and clothing and articles using the same
US7990337B2 (en) 2007-12-20 2011-08-02 Murata Manufacturing Co., Ltd. Radio frequency IC device
US7997501B2 (en) 2007-07-17 2011-08-16 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US8009101B2 (en) 2007-04-06 2011-08-30 Murata Manufacturing Co., Ltd. Wireless IC device
US8031124B2 (en) 2007-01-26 2011-10-04 Murata Manufacturing Co., Ltd. Container with electromagnetic coupling module
US8070070B2 (en) 2007-12-26 2011-12-06 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US8081541B2 (en) 2006-06-30 2011-12-20 Murata Manufacturing Co., Ltd. Optical disc
US8081121B2 (en) 2006-10-27 2011-12-20 Murata Manufacturing Co., Ltd. Article having electromagnetic coupling module attached thereto
US8081119B2 (en) 2006-04-26 2011-12-20 Murata Manufacturing Co., Ltd. Product including power supply circuit board
US8081125B2 (en) 2006-07-11 2011-12-20 Murata Manufacturing Co., Ltd. Antenna and radio IC device
US8177138B2 (en) 2008-10-29 2012-05-15 Murata Manufacturing Co., Ltd. Radio IC device
US8179329B2 (en) 2008-03-03 2012-05-15 Murata Manufacturing Co., Ltd. Composite antenna
US8193939B2 (en) 2007-07-09 2012-06-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8228252B2 (en) 2006-05-26 2012-07-24 Murata Manufacturing Co., Ltd. Data coupler
US8228075B2 (en) 2006-08-24 2012-07-24 Murata Manufacturing Co., Ltd. Test system for radio frequency IC devices and method of manufacturing radio frequency IC devices using the same
US8235299B2 (en) 2007-07-04 2012-08-07 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8264357B2 (en) 2007-06-27 2012-09-11 Murata Manufacturing Co., Ltd. Wireless IC device
US8299929B2 (en) 2006-09-26 2012-10-30 Murata Manufacturing Co., Ltd. Inductively coupled module and item with inductively coupled module
US8299968B2 (en) 2007-02-06 2012-10-30 Murata Manufacturing Co., Ltd. Packaging material with electromagnetic coupling module
US8314739B2 (en) 2007-04-27 2012-11-20 Nec Corporation Wideband antenna
US8336786B2 (en) 2010-03-12 2012-12-25 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US8342416B2 (en) 2009-01-09 2013-01-01 Murata Manufacturing Co., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8360325B2 (en) 2008-04-14 2013-01-29 Murata Manufacturing Co., Ltd. Wireless IC device, electronic apparatus, and method for adjusting resonant frequency of wireless IC device
US8360324B2 (en) 2007-04-09 2013-01-29 Murata Manufacturing Co., Ltd. Wireless IC device
US8381997B2 (en) 2009-06-03 2013-02-26 Murata Manufacturing Co., Ltd. Radio frequency IC device and method of manufacturing the same
US8390459B2 (en) 2007-04-06 2013-03-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8400307B2 (en) 2007-07-18 2013-03-19 Murata Manufacturing Co., Ltd. Radio frequency IC device and electronic apparatus
US8400365B2 (en) 2009-11-20 2013-03-19 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
US8418928B2 (en) 2009-04-14 2013-04-16 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8424769B2 (en) 2010-07-08 2013-04-23 Murata Manufacturing Co., Ltd. Antenna and RFID device
US8474725B2 (en) 2007-04-27 2013-07-02 Murata Manufacturing Co., Ltd. Wireless IC device
US8531346B2 (en) 2007-04-26 2013-09-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8546927B2 (en) 2010-09-03 2013-10-01 Murata Manufacturing Co., Ltd. RFIC chip mounting structure
US8544754B2 (en) 2006-06-01 2013-10-01 Murata Manufacturing Co., Ltd. Wireless IC device and wireless IC device composite component
US8583043B2 (en) 2009-01-16 2013-11-12 Murata Manufacturing Co., Ltd. High-frequency device and wireless IC device
US8590797B2 (en) 2008-05-21 2013-11-26 Murata Manufacturing Co., Ltd. Wireless IC device
US8596545B2 (en) 2008-05-28 2013-12-03 Murata Manufacturing Co., Ltd. Component of wireless IC device and wireless IC device
US8602310B2 (en) 2010-03-03 2013-12-10 Murata Manufacturing Co., Ltd. Radio communication device and radio communication terminal
US8613395B2 (en) 2011-02-28 2013-12-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8632014B2 (en) 2007-04-27 2014-01-21 Murata Manufacturing Co., Ltd. Wireless IC device
US8668151B2 (en) 2008-03-26 2014-03-11 Murata Manufacturing Co., Ltd. Wireless IC device
US8680971B2 (en) 2009-09-28 2014-03-25 Murata Manufacturing Co., Ltd. Wireless IC device and method of detecting environmental state using the device
US8692718B2 (en) 2008-11-17 2014-04-08 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8718727B2 (en) 2009-12-24 2014-05-06 Murata Manufacturing Co., Ltd. Antenna having structure for multi-angled reception and mobile terminal including the antenna
US8720789B2 (en) 2012-01-30 2014-05-13 Murata Manufacturing Co., Ltd. Wireless IC device
US8740093B2 (en) 2011-04-13 2014-06-03 Murata Manufacturing Co., Ltd. Radio IC device and radio communication terminal
US8757500B2 (en) 2007-05-11 2014-06-24 Murata Manufacturing Co., Ltd. Wireless IC device
US8770489B2 (en) 2011-07-15 2014-07-08 Murata Manufacturing Co., Ltd. Radio communication device
US8797225B2 (en) 2011-03-08 2014-08-05 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US8797148B2 (en) 2008-03-03 2014-08-05 Murata Manufacturing Co., Ltd. Radio frequency IC device and radio communication system
US8810456B2 (en) 2009-06-19 2014-08-19 Murata Manufacturing Co., Ltd. Wireless IC device and coupling method for power feeding circuit and radiation plate
US8814056B2 (en) 2011-07-19 2014-08-26 Murata Manufacturing Co., Ltd. Antenna device, RFID tag, and communication terminal apparatus
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US8905316B2 (en) 2010-05-14 2014-12-09 Murata Manufacturing Co., Ltd. Wireless IC device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US8976075B2 (en) 2009-04-21 2015-03-10 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
US8994605B2 (en) 2009-10-02 2015-03-31 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US8991713B2 (en) 2011-01-14 2015-03-31 Murata Manufacturing Co., Ltd. RFID chip package and RFID tag
US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9064198B2 (en) 2006-04-26 2015-06-23 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US9077067B2 (en) 2008-07-04 2015-07-07 Murata Manufacturing Co., Ltd. Radio IC device
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9123996B2 (en) 2010-05-14 2015-09-01 Murata Manufacturing Co., Ltd. Wireless IC device
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9178279B2 (en) 2009-11-04 2015-11-03 Murata Manufacturing Co., Ltd. Wireless IC tag, reader-writer, and information processing system
US9231305B2 (en) 2008-10-24 2016-01-05 Murata Manufacturing Co., Ltd. Wireless IC device
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9281873B2 (en) 2008-05-26 2016-03-08 Murata Manufacturing Co., Ltd. Wireless IC device system and method of determining authenticity of wireless IC device
US9378452B2 (en) 2011-05-16 2016-06-28 Murata Manufacturing Co., Ltd. Radio IC device
US9444143B2 (en) 2009-10-16 2016-09-13 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9460376B2 (en) 2007-07-18 2016-10-04 Murata Manufacturing Co., Ltd. Radio IC device
US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
US9543642B2 (en) 2011-09-09 2017-01-10 Murata Manufacturing Co., Ltd. Antenna device and wireless device
US9558384B2 (en) 2010-07-28 2017-01-31 Murata Manufacturing Co., Ltd. Antenna apparatus and communication terminal instrument
US9692128B2 (en) 2012-02-24 2017-06-27 Murata Manufacturing Co., Ltd. Antenna device and wireless communication device
US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag
US10249954B2 (en) * 2017-07-04 2019-04-02 Arcadyan Technology Corporation Dipole antenna

Cited By (134)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7330158B2 (en) 2004-01-16 2008-02-12 Tdk Corporation Module substrate with antenna and radio module using the same
WO2005069441A1 (en) * 2004-01-16 2005-07-28 Tdk Corporation Module substrate with antenna and radio module employing it
JP2009153146A (en) * 2004-06-11 2009-07-09 Hitachi Ltd Ic tag for radio frequency
US7659863B2 (en) 2005-03-17 2010-02-09 Fujitsu Limited Tag antenna
US8326223B2 (en) 2006-01-19 2012-12-04 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8078106B2 (en) 2006-01-19 2011-12-13 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8676117B2 (en) 2006-01-19 2014-03-18 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US7764928B2 (en) 2006-01-19 2010-07-27 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8725071B2 (en) 2006-01-19 2014-05-13 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
WO2007122870A1 (en) * 2006-04-10 2007-11-01 Murata Manufacturing Co., Ltd. Wireless ic device
US8384547B2 (en) 2006-04-10 2013-02-26 Murata Manufacturing Co., Ltd. Wireless IC device
US7786949B2 (en) 2006-04-14 2010-08-31 Murata Manufacturing Co., Ltd. Antenna
US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US8081119B2 (en) 2006-04-26 2011-12-20 Murata Manufacturing Co., Ltd. Product including power supply circuit board
US9064198B2 (en) 2006-04-26 2015-06-23 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US8228252B2 (en) 2006-05-26 2012-07-24 Murata Manufacturing Co., Ltd. Data coupler
US8544754B2 (en) 2006-06-01 2013-10-01 Murata Manufacturing Co., Ltd. Wireless IC device and wireless IC device composite component
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
US8228765B2 (en) 2006-06-30 2012-07-24 Murata Manufacturing Co., Ltd. Optical disc
US8081541B2 (en) 2006-06-30 2011-12-20 Murata Manufacturing Co., Ltd. Optical disc
US8081125B2 (en) 2006-07-11 2011-12-20 Murata Manufacturing Co., Ltd. Antenna and radio IC device
US8228075B2 (en) 2006-08-24 2012-07-24 Murata Manufacturing Co., Ltd. Test system for radio frequency IC devices and method of manufacturing radio frequency IC devices using the same
US8299929B2 (en) 2006-09-26 2012-10-30 Murata Manufacturing Co., Ltd. Inductively coupled module and item with inductively coupled module
US8081121B2 (en) 2006-10-27 2011-12-20 Murata Manufacturing Co., Ltd. Article having electromagnetic coupling module attached thereto
US8031124B2 (en) 2007-01-26 2011-10-04 Murata Manufacturing Co., Ltd. Container with electromagnetic coupling module
US8299968B2 (en) 2007-02-06 2012-10-30 Murata Manufacturing Co., Ltd. Packaging material with electromagnetic coupling module
US8009101B2 (en) 2007-04-06 2011-08-30 Murata Manufacturing Co., Ltd. Wireless IC device
US8390459B2 (en) 2007-04-06 2013-03-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8360324B2 (en) 2007-04-09 2013-01-29 Murata Manufacturing Co., Ltd. Wireless IC device
US8424762B2 (en) 2007-04-14 2013-04-23 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8531346B2 (en) 2007-04-26 2013-09-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8632014B2 (en) 2007-04-27 2014-01-21 Murata Manufacturing Co., Ltd. Wireless IC device
US8314739B2 (en) 2007-04-27 2012-11-20 Nec Corporation Wideband antenna
US8474725B2 (en) 2007-04-27 2013-07-02 Murata Manufacturing Co., Ltd. Wireless IC device
US7931206B2 (en) 2007-05-10 2011-04-26 Murata Manufacturing Co., Ltd. Wireless IC device
US8757500B2 (en) 2007-05-11 2014-06-24 Murata Manufacturing Co., Ltd. Wireless IC device
US8264357B2 (en) 2007-06-27 2012-09-11 Murata Manufacturing Co., Ltd. Wireless IC device
US8662403B2 (en) 2007-07-04 2014-03-04 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US8235299B2 (en) 2007-07-04 2012-08-07 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US7762472B2 (en) 2007-07-04 2010-07-27 Murata Manufacturing Co., Ltd Wireless IC device
US8193939B2 (en) 2007-07-09 2012-06-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8552870B2 (en) 2007-07-09 2013-10-08 Murata Manufacturing Co., Ltd. Wireless IC device
US8413907B2 (en) 2007-07-17 2013-04-09 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US8191791B2 (en) 2007-07-17 2012-06-05 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US7997501B2 (en) 2007-07-17 2011-08-16 Murata Manufacturing Co., Ltd. Wireless IC device and electronic apparatus
US7830311B2 (en) 2007-07-18 2010-11-09 Murata Manufacturing Co., Ltd. Wireless IC device and electronic device
US9830552B2 (en) 2007-07-18 2017-11-28 Murata Manufacturing Co., Ltd. Radio IC device
US8400307B2 (en) 2007-07-18 2013-03-19 Murata Manufacturing Co., Ltd. Radio frequency IC device and electronic apparatus
US7857230B2 (en) 2007-07-18 2010-12-28 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
US9460376B2 (en) 2007-07-18 2016-10-04 Murata Manufacturing Co., Ltd. Radio IC device
US7990337B2 (en) 2007-12-20 2011-08-02 Murata Manufacturing Co., Ltd. Radio frequency IC device
US8610636B2 (en) 2007-12-20 2013-12-17 Murata Manufacturing Co., Ltd. Radio frequency IC device
US8070070B2 (en) 2007-12-26 2011-12-06 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US8360330B2 (en) 2007-12-26 2013-01-29 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US8915448B2 (en) 2007-12-26 2014-12-23 Murata Manufacturing Co., Ltd. Antenna device and radio frequency IC device
US7948445B2 (en) 2008-02-18 2011-05-24 Nec Corporation Wideband antenna and clothing and articles using the same
US8179329B2 (en) 2008-03-03 2012-05-15 Murata Manufacturing Co., Ltd. Composite antenna
US8797148B2 (en) 2008-03-03 2014-08-05 Murata Manufacturing Co., Ltd. Radio frequency IC device and radio communication system
US8668151B2 (en) 2008-03-26 2014-03-11 Murata Manufacturing Co., Ltd. Wireless IC device
US8360325B2 (en) 2008-04-14 2013-01-29 Murata Manufacturing Co., Ltd. Wireless IC device, electronic apparatus, and method for adjusting resonant frequency of wireless IC device
US8973841B2 (en) 2008-05-21 2015-03-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8960557B2 (en) 2008-05-21 2015-02-24 Murata Manufacturing Co., Ltd. Wireless IC device
US9022295B2 (en) 2008-05-21 2015-05-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8590797B2 (en) 2008-05-21 2013-11-26 Murata Manufacturing Co., Ltd. Wireless IC device
US9281873B2 (en) 2008-05-26 2016-03-08 Murata Manufacturing Co., Ltd. Wireless IC device system and method of determining authenticity of wireless IC device
US8596545B2 (en) 2008-05-28 2013-12-03 Murata Manufacturing Co., Ltd. Component of wireless IC device and wireless IC device
US7871008B2 (en) 2008-06-25 2011-01-18 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
US8011589B2 (en) 2008-06-25 2011-09-06 Murata Manufacturing Co., Ltd. Wireless IC device and manufacturing method thereof
US9077067B2 (en) 2008-07-04 2015-07-07 Murata Manufacturing Co., Ltd. Radio IC device
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US9231305B2 (en) 2008-10-24 2016-01-05 Murata Manufacturing Co., Ltd. Wireless IC device
US8177138B2 (en) 2008-10-29 2012-05-15 Murata Manufacturing Co., Ltd. Radio IC device
US8692718B2 (en) 2008-11-17 2014-04-08 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8917211B2 (en) 2008-11-17 2014-12-23 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8544759B2 (en) 2009-01-09 2013-10-01 Murata Manufacturing., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8342416B2 (en) 2009-01-09 2013-01-01 Murata Manufacturing Co., Ltd. Wireless IC device, wireless IC module and method of manufacturing wireless IC module
US8583043B2 (en) 2009-01-16 2013-11-12 Murata Manufacturing Co., Ltd. High-frequency device and wireless IC device
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8690070B2 (en) 2009-04-14 2014-04-08 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8876010B2 (en) 2009-04-14 2014-11-04 Murata Manufacturing Co., Ltd Wireless IC device component and wireless IC device
US8418928B2 (en) 2009-04-14 2013-04-16 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US9564678B2 (en) 2009-04-21 2017-02-07 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US9203157B2 (en) 2009-04-21 2015-12-01 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US8976075B2 (en) 2009-04-21 2015-03-10 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
JP2010268023A (en) * 2009-05-12 2010-11-25 Toppan Printing Co Ltd Ic tag
US8381997B2 (en) 2009-06-03 2013-02-26 Murata Manufacturing Co., Ltd. Radio frequency IC device and method of manufacturing the same
US8810456B2 (en) 2009-06-19 2014-08-19 Murata Manufacturing Co., Ltd. Wireless IC device and coupling method for power feeding circuit and radiation plate
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
JP2011055466A (en) * 2009-08-05 2011-03-17 Nippon Antenna Co Ltd Antenna, and antenna device
US8680971B2 (en) 2009-09-28 2014-03-25 Murata Manufacturing Co., Ltd. Wireless IC device and method of detecting environmental state using the device
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US9117157B2 (en) 2009-10-02 2015-08-25 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US8994605B2 (en) 2009-10-02 2015-03-31 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US9444143B2 (en) 2009-10-16 2016-09-13 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9178279B2 (en) 2009-11-04 2015-11-03 Murata Manufacturing Co., Ltd. Wireless IC tag, reader-writer, and information processing system
US8400365B2 (en) 2009-11-20 2013-03-19 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
US8704716B2 (en) 2009-11-20 2014-04-22 Murata Manufacturing Co., Ltd. Antenna device and mobile communication terminal
US8718727B2 (en) 2009-12-24 2014-05-06 Murata Manufacturing Co., Ltd. Antenna having structure for multi-angled reception and mobile terminal including the antenna
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US8602310B2 (en) 2010-03-03 2013-12-10 Murata Manufacturing Co., Ltd. Radio communication device and radio communication terminal
US8528829B2 (en) 2010-03-12 2013-09-10 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US8336786B2 (en) 2010-03-12 2012-12-25 Murata Manufacturing Co., Ltd. Wireless communication device and metal article
US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
US8905316B2 (en) 2010-05-14 2014-12-09 Murata Manufacturing Co., Ltd. Wireless IC device
US9123996B2 (en) 2010-05-14 2015-09-01 Murata Manufacturing Co., Ltd. Wireless IC device
US8424769B2 (en) 2010-07-08 2013-04-23 Murata Manufacturing Co., Ltd. Antenna and RFID device
US9558384B2 (en) 2010-07-28 2017-01-31 Murata Manufacturing Co., Ltd. Antenna apparatus and communication terminal instrument
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
US8546927B2 (en) 2010-09-03 2013-10-01 Murata Manufacturing Co., Ltd. RFIC chip mounting structure
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US8991713B2 (en) 2011-01-14 2015-03-31 Murata Manufacturing Co., Ltd. RFID chip package and RFID tag
US8757502B2 (en) 2011-02-28 2014-06-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8613395B2 (en) 2011-02-28 2013-12-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8960561B2 (en) 2011-02-28 2015-02-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8797225B2 (en) 2011-03-08 2014-08-05 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US8740093B2 (en) 2011-04-13 2014-06-03 Murata Manufacturing Co., Ltd. Radio IC device and radio communication terminal
US9378452B2 (en) 2011-05-16 2016-06-28 Murata Manufacturing Co., Ltd. Radio IC device
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US8770489B2 (en) 2011-07-15 2014-07-08 Murata Manufacturing Co., Ltd. Radio communication device
US8814056B2 (en) 2011-07-19 2014-08-26 Murata Manufacturing Co., Ltd. Antenna device, RFID tag, and communication terminal apparatus
US9543642B2 (en) 2011-09-09 2017-01-10 Murata Manufacturing Co., Ltd. Antenna device and wireless device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US8720789B2 (en) 2012-01-30 2014-05-13 Murata Manufacturing Co., Ltd. Wireless IC device
US9692128B2 (en) 2012-02-24 2017-06-27 Murata Manufacturing Co., Ltd. Antenna device and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag
US10249954B2 (en) * 2017-07-04 2019-04-02 Arcadyan Technology Corporation Dipole antenna

Similar Documents

Publication Publication Date Title
AU619389B2 (en) Detachable battery pack with a built-in broadband antenna
CN1151586C (en) Multifrequency microstrip antenna and device including said antenna
JP3305412B2 (en) Microstrip antenna and its constituent parts
US6268831B1 (en) Inverted-f antennas with multiple planar radiating elements and wireless communicators incorporating same
US7978148B2 (en) Quadrifilar helical antenna
CN1291521C (en) Antenna device and communication equipment using it
US6404394B1 (en) Dual polarization slot antenna assembly
JP3093715B2 (en) Resonator attachment microstrip dipole antenna array
JP3864127B2 (en) Chip antenna and a mobile communication apparatus using the same have the dual feeding ports
CN1150660C (en) Multiple band printed monopole antenna
EP1590857B1 (en) Low profile dual frequency dipole antenna structure
CN102075205B (en) Mobile communication device
CN1084938C (en) Double-frequency resonant antenna
JP3114621B2 (en) A surface mount antenna and communication apparatus using the same
CN1108641C (en) Meander antenna device
JP4414437B2 (en) Planar inverted f-shaped antenna and associated communications device comprising a part of the current value of zero between the ground plane coupling unit and the power supply connecting portion
US6606061B2 (en) Broadband circularly polarized patch antenna
CN1809947B (en) Hybrid antenna using parasitic excitation of conducting antennas by dielectric antennas
CN1185761C (en) Broadband miniaturized slow-wave antenna
TWI411158B (en) A multiband folded loop antenna
JP4481716B2 (en) Communication device
CN100353612C (en) Dual band dipole antenna structure
JP4063729B2 (en) Antenna and wireless terminal
US6229487B1 (en) Inverted-F antennas having non-linear conductive elements and wireless communicators incorporating the same
WO1999021245A1 (en) Compact antenna structures including baluns

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20050705