JPH09139621A - Built-in plane antenna - Google Patents
Built-in plane antennaInfo
- Publication number
- JPH09139621A JPH09139621A JP29829695A JP29829695A JPH09139621A JP H09139621 A JPH09139621 A JP H09139621A JP 29829695 A JP29829695 A JP 29829695A JP 29829695 A JP29829695 A JP 29829695A JP H09139621 A JPH09139621 A JP H09139621A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- built
- antenna element
- meandering
- housing
- 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.)
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- Waveguide Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主としてデジタル
方式の携帯電話機等に内蔵して使用される平面アンテナ
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plane antenna mainly used by being built in a digital mobile phone or the like.
【０００２】[0002]
【従来の技術】従来、平面アンテナは小型で高利得とい
う利点により、デジタル方式の携帯電話の内蔵アンテナ
として広く使われてきた。近年、携帯電話市場は急速に
普及し、小型化になる傾向がある。従って、携帯電話に
搭載されているアンテナもより小型化が求められてい
る。本発明は、内蔵して使用する平面アンテナの小型化
に関するものである。2. Description of the Related Art Conventionally, a planar antenna has been widely used as a built-in antenna of a digital mobile phone due to its advantages of small size and high gain. In recent years, the mobile phone market has rapidly become widespread and tends to be downsized. Therefore, the antenna mounted on the mobile phone is required to be further downsized. The present invention relates to miniaturization of a planar antenna that is built in and used.
【０００３】内蔵アンテナに用いられている方式とし
て、図４のように、逆Ｆアンテナ１７やマイクロストリ
ップラインアンテナ（図示せず）などがある。これらの
アンテナとして共通する点は、給電ピン８の給電手段と
短絡導体１８の短絡手段の２つを必要とすることであ
る。As a method used for the built-in antenna, there is an inverted F antenna 17 or a microstrip line antenna (not shown) as shown in FIG. What these antennas have in common is that two power supply means for the power supply pin 8 and a short circuit means for the short-circuit conductor 18 are required.
【０００４】アンテナ単体で考えた場合、アンテナ素子
を短絡することは、アンテナの大きさを小型にする効果
があることは知られている。しかし、携帯無線機のシス
テム全体で考えて場合、短絡手段と給電手段の２つを設
けることは、必ずしも小型化に効果があるとは言えな
い。When considering the antenna alone, it is known that short-circuiting the antenna elements has the effect of reducing the size of the antenna. However, when considering the entire system of the portable wireless device, it cannot be said that the provision of the short-circuiting means and the power feeding means is effective for downsizing.
【０００５】なぜならば、この２つの手段を実現するに
は、アンテナが搭載される回路基板上に、給電ライン
（整合回路が必要な場合はそれも含む）と、さらにアン
テナと回路基板上のグランド間を接続するためのランド
や板金を必要とする。そのために、グランドを接続する
ための部品や工程の増加を招くことになる。この結果、
アンテナの配置や大きさに制約を受けることになる。This is because, in order to realize these two means, a feeding line (including a matching circuit if necessary) is provided on the circuit board on which the antenna is mounted, and further the antenna and the ground on the circuit board. It requires land and sheet metal to connect between them. Therefore, the number of parts and processes for connecting the ground is increased. As a result,
The layout and size of the antenna will be restricted.
【０００６】ところが、給電手段のみを用いるアンテナ
として、ヘリカルアンテナが挙げられるが、これを図３
のように、地板２に平行にヘリカルコイル１６を倒して
（筐体内に収めるため）内蔵アンテナとして用いても、
倒すことによってアンテナ入力インピーダンスが低くな
り整合を取るのが難しく、利得も悪い。However, as an antenna using only the power feeding means, there is a helical antenna, which is shown in FIG.
As described above, even if the helical coil 16 is tilted in parallel with the main plate 2 (to be housed in the housing) and used as an internal antenna,
The antenna input impedance is lowered by tilting it, making it difficult to achieve matching, and the gain is also poor.
【０００７】[0007]
【課題を解決するための手段】本発明は短絡手段を用い
ず、給電手段のみを用いるアンテナ方式であり、地板
（グランド板あるいはグランド板を含む回路基板）のグ
ランド上のある高さに電気的に１／４波長の長さがある
蛇行状のアンテナ素子を水平に保持することにより小型
かつ高利得な内蔵平面アンテナを得るものである。SUMMARY OF THE INVENTION The present invention is an antenna system using only a power feeding means without using a short-circuit means, and electrically connects a ground plane (a ground plane or a circuit board including the ground plane) to a certain height above the ground. By holding a meandering antenna element having a length of 1/4 wavelength horizontally, a compact and high gain built-in planar antenna is obtained.
【０００８】[0008]
【発明の実施の形態】本発明の実施形態は、図１に示す
ように、携帯無線機の筐体に内蔵されるアンテナにおい
て、誘電体基板１の面上に形成された１／４波長の電気
的長さを有する蛇行状アンテナ素子４と、誘電体基板１
を地板２（回路基板１５を含む）から一定の高さに平行
に保持する手段（支柱３）とを具備し、蛇行状アンテナ
素子４の一端を給電端５とし給電ピン８を通じ略真下の
地板２上にて給電線９に接続して給電点７を形成し、他
端を開放端６とする内蔵平面アンテナ１１である。また
図２に示すように、この内蔵平面アンテナ１１は、１／
４波長の蛇行状アンテナ素子４が、その一端である給電
端５と他端の開放端６の配置を、給電点７を筺体内の中
心側にして開放端６が携帯無線機の筺体１２のケース１
３間近になる形状に誘電体基板１上に形成する。また筐
体１２上部に誘電体基板１が配置される。さらに、外部
に突出する線状アンテナ１４と内蔵平面アンテナ１１の
間でダイバシチ受信を行うため、誘電体基板１は線状ア
ンテナ１４が配置されている場所から離して配置され
る。BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, an embodiment of the present invention is an antenna built in a housing of a portable radio device, and has a wavelength of a quarter wavelength formed on a surface of a dielectric substrate 1. A meandering antenna element 4 having an electrical length and a dielectric substrate 1
And a means (support 3) for holding the base plate 2 (including the circuit board 15) in parallel at a constant height, and one end of the meandering antenna element 4 as a power supply end 5 and a ground plate substantially directly below the power supply pin 8. 2 is a built-in planar antenna 11 which is connected to a power feed line 9 on the above 2 to form a power feed point 7 and whose other end is an open end 6. In addition, as shown in FIG.
The four-wavelength serpentine antenna element 4 has a feed end 5 which is one end thereof and an open end 6 which is the other end of the meandering antenna element 4, with the feed point 7 being the center side in the housing and the open end 6 of the housing 12 of the portable wireless device. Case 1
It is formed on the dielectric substrate 1 in a shape close to 3. Further, the dielectric substrate 1 is arranged on the top of the housing 12. Further, since diversity reception is performed between the linear antenna 14 protruding to the outside and the built-in planar antenna 11, the dielectric substrate 1 is arranged away from the place where the linear antenna 14 is arranged.
【０００９】また、１／４波長の蛇行状のアンテナ素子
４は誘電体基板１の地板側の面上に形成するかあるいは
地板の反対側の面上に形成する。さらに、誘電体基板１
及びその面上に形成された１／４波長の蛇行状のアンテ
ナ素子４は、薄い板金を１／４波長の電気的長さがある
蛇行状に打ち抜くことで代替できる。上述の誘電体基板
１あるいはこの薄い板金を打ち抜いたアンテナ素子は、
その保持を地板２からでなく筐体１２のリア側ケースか
ら保持手段により保持してもよい。The quarter-wave serpentine antenna element 4 is formed on the surface of the dielectric substrate 1 on the side of the ground plane or on the surface opposite to the ground plane. Furthermore, the dielectric substrate 1
Also, the quarter-wavelength meandering antenna element 4 formed on the surface can be replaced by punching a thin metal plate into a meandering shape having an electrical length of 1/4 wavelength. The above-mentioned dielectric substrate 1 or the antenna element punched out of this thin sheet metal is
The holding may be held by the holding means from the rear side case of the housing 12 instead of from the main plate 2.
【００１０】以下図面を用いて本発明の実施形態を説明
する。図１は本発明の平面アンテナの斜視図であり、図
２は本発明の平面アンテナの配置図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the planar antenna of the present invention, and FIG. 2 is a layout view of the planar antenna of the present invention.
【００１１】図１において、１は誘電体基板であり、２
は通常回路基板などが用いられる地板であり、３は地板
２からある一定の高さに平行に誘電体基板１を保持する
ようにする支柱であり、４は誘電体基板１の面上に銅箔
印刷されたアンテナ素子であり、５はアンテナ素子４の
給電側の端部である給電端であり、６はアンテナ素子４
の先端部分である開放端であり、７は地板上に形成され
た給電点であり、８は給電端５と給電点７を電気的に接
続する給電ピンであり、９は地板２上に形成された給電
点７から受信回路（図示せず）までを電気的に接続する
給電線であり、１０はアンテナと受信回路のインピーダ
ンスの整合をとるための整合回路であり、１１は誘電体
基板１とアンテナ素子４と給電ピン８を合わせた平面ア
ンテナである。In FIG. 1, reference numeral 1 is a dielectric substrate, and 2
Is a base plate for which a circuit board or the like is usually used, 3 is a pillar for holding the dielectric substrate 1 parallel to a certain height from the base plate 2, and 4 is copper on the surface of the dielectric substrate 1. A foil-printed antenna element, 5 is a feeding end that is an end of the antenna element 4 on the feeding side, and 6 is an antenna element 4
7 is a feeding point formed on the main plate, 8 is a feeding pin that electrically connects the feeding end 5 and the feeding point 7, and 9 is formed on the main plate 2. A feeding line electrically connecting the feeding point 7 to the receiving circuit (not shown), 10 is a matching circuit for matching the impedance of the antenna and the receiving circuit, and 11 is the dielectric substrate 1. Is a planar antenna in which the antenna element 4 and the feed pin 8 are combined.
【００１２】図２において、１２はフロント側全面とリ
ア側上半分を占める携帯電話本体ケースとリア側下半分
を占める着脱式電池パックケースとで携帯電話の外観を
構成する筐体であり、図はリア側の上部ケースの一部を
切り欠いた状態を示す。また、１３はフロント側のケー
スであり、１４は外部に突出している線状アンテナであ
り、１５は平面アンテナ１１の真下にある回路基板（地
板）である。In FIG. 2, reference numeral 12 designates a casing that constitutes the appearance of the mobile phone, that is, a mobile phone main body case that occupies the entire front side and the upper half of the rear side, and a removable battery pack case that occupies the lower half of the rear side. Shows a state in which a part of the upper case on the rear side is cut out. Further, 13 is a case on the front side, 14 is a linear antenna projecting to the outside, and 15 is a circuit board (ground plate) directly below the planar antenna 11.
【００１３】このような構成のときに、携帯電話の筐体
に内蔵されている平面アンテナ１１は基地局から送信さ
れる電波を受信できるように、受信帯域で共振するよう
な１／４波長の電気的長さをもつように、幅０．６ｍｍ
〜１．０ｍｍぐらいの細長い導体を蛇行状に誘電体基板
１の面上に形成する。平面アンテナ１１の真下にある回
路基板１５の平面アンテナ１１に重なる部分はグランド
がベタではられており、この部分とアンテナ素子４が共
振を起こし、受信した電力が給電ピン８を流れ給電線９
を通って受信回路に流れる。このとき、平面アンテナ１
１と地板２（回路基板１５）を電気的に接続するもの
は、給電ピン８のみであり、短絡手段を回路基板１５に
設ける必要がなく、その分回路基板１５のスペースを有
効に利用できる。In such a configuration, the plane antenna 11 built in the housing of the mobile phone has a quarter wavelength so as to resonate in the reception band so that the radio wave transmitted from the base station can be received. Width 0.6mm so as to have electrical length
A long and narrow conductor of about 1.0 mm is formed in a meandering shape on the surface of the dielectric substrate 1. The portion of the circuit board 15 directly below the planar antenna 11 overlapping the planar antenna 11 has a solid ground, and this portion and the antenna element 4 resonate, and the received power flows through the power feed pin 8 and the power feed line 9.
Through to the receiving circuit. At this time, the planar antenna 1
It is only the power supply pins 8 that electrically connect 1 to the ground plane 2 (circuit board 15), and it is not necessary to provide a short-circuit means on the circuit board 15, and the space of the circuit board 15 can be effectively used for that amount.
【００１４】また、共振周波数はアンテナ素子４の導体
の周囲長で決まるが、幅の細い導体を図１，２のように
蛇行状に這わせることによって、誘電体基板１のサイズ
を小さくすることができる。Although the resonance frequency is determined by the perimeter of the conductor of the antenna element 4, the size of the dielectric substrate 1 can be reduced by causing the conductor having a narrow width to crawl in a meandering manner as shown in FIGS. You can
【００１５】さらに、利得に関しては、地板２に対する
アンテナ素子４の高さが高いほど利得が良くなる傾向に
あり、図３のようにヘリカルコイルを横に寝かせたよう
な構成にすると地板２からコイル素子の高さが範囲を持
ち低い部分ができるために利得が劣化し、低い部分を高
くしようとしてもコイルの上部がケースにつっかえてし
まい利得が良くならないが、本発明のように誘電体基板
１の面上にアンテナ素子４を印刷することにより、地板
２（回路基板１５）からの高さが一定となり、ぎりぎり
まで高さをかせぐことができる。Regarding the gain, the higher the height of the antenna element 4 with respect to the ground plane 2, the better the gain tends to be. If the helical coil is laid sideways as shown in FIG. Since the height of the element has a range and a low portion is formed, the gain is deteriorated, and even if an attempt is made to increase the low portion, the upper part of the coil is stuck in the case and the gain is not improved. However, unlike the present invention, the dielectric substrate 1 By printing the antenna element 4 on the surface of, the height from the main board 2 (circuit board 15) becomes constant, and the height can be barely reached.
【００１６】以上の構成により、小型化が可能となり、
かつ高利得も得ることができる。With the above structure, downsizing can be achieved,
Also, high gain can be obtained.
【００１７】また、図２のようにアンテナ素子４は給電
端５を筐体内の中心側に配置し、電界が最大となる開放
端６をケース１３の間近に配置するように形成し、さら
に、誘電体基板１は、アンテナ素子４の開放端６がケー
ス１３の、間近になるように配置することにより利得が
向上する。Further, as shown in FIG. 2, the antenna element 4 is formed such that the feeding end 5 is arranged on the center side in the housing and the open end 6 where the electric field is maximum is arranged close to the case 13. By arranging the dielectric substrate 1 so that the open end 6 of the antenna element 4 is close to the case 13, the gain is improved.
【００１８】この配置する方向は、外部に突出する線状
アンテナ１４とのダイバシチ受信の効果を高めるため
に、誘電体基板１を線状アンテナ１４から離して配置さ
れるようにすると良い。In this arrangement direction, in order to enhance the effect of diversity reception with the linear antenna 14 protruding to the outside, it is advisable to dispose the dielectric substrate 1 away from the linear antenna 14.
【００１９】また、本発明はアンテナ素子４を印刷する
面上を誘電体基板１の地板側の面上に形成しても良い
し、地板と反対の面上に形成しても良い。Further, according to the present invention, the surface on which the antenna element 4 is printed may be formed on the surface of the dielectric substrate 1 on the side of the ground plane, or may be formed on the surface opposite to the ground plane.
【００２０】誘電体基板１においても、その材料にこだ
わることはなく、薄い板金を１／４波長の電気的長さが
ある蛇行状のアンテナ素子になるように打ち抜いて平面
アンテナとしても良い。Also in the dielectric substrate 1, there is no particular limitation on the material thereof, and a thin sheet metal may be punched into a meandering antenna element having an electrical length of ¼ wavelength to form a planar antenna.
【００２１】誘電体基板１にしろ薄い板金にしろこれら
の保持の方法は、地板２から支柱３を出して保持するこ
とにこだわることはなく、例えば、リア側ケースから平
面アンテナを保持しても良い。Whether holding the dielectric substrate 1 or a thin metal plate, these holding methods are not limited to sticking out the columns 3 from the base plate 2 and holding them. For example, even if a flat antenna is held from the rear case. good.
【００２２】[0022]
【実施例】一例として、８００ＭＨｚ帯のデジタル式携
帯電話に本発明を使用したとすれば、その平面アンテナ
の大きさは、アンテナ素子の幅を０．６ｍｍとして、２
５×１５×５（横×縦×高さ：単位ｍｍ）程度になり、
従来の平面アンテナの約半分の大きさまで小型になる。
利得も従来の平面アンテナと同等以上を確保でき十分実
用になる。As an example, if the present invention is used in a digital mobile phone of 800 MHz band, the size of the planar antenna is 2 mm with the width of the antenna element being 0.6 mm.
It becomes about 5 x 15 x 5 (horizontal x vertical x height: unit mm),
The size is reduced to about half the size of conventional planar antennas.
A gain equal to or more than that of the conventional planar antenna can be secured, and it is sufficiently practical.
【００２３】[0023]
【発明の効果】小型化が容易で、充分な利得を確保でき
る。The miniaturization is easy and a sufficient gain can be secured.
【図１】本発明の実施形態である平面アンテナの斜視
図。FIG. 1 is a perspective view of a planar antenna that is an embodiment of the present invention.
【図２】本発明の実施形態である平面アンテナ配置を示
すもので、（ａ）はリア側の上部ケースを切り欠いた携
帯電話の背面図、（ｂ）は同側面図。2A and 2B show a planar antenna arrangement according to an embodiment of the present invention, in which FIG. 2A is a rear view of a mobile phone with a rear upper case cut out, and FIG.
【図３】内蔵アンテナとした場合のヘリカルアンテナ斜
視図。FIG. 3 is a perspective view of a helical antenna when a built-in antenna is used.
【図４】従来の平面アンテナ斜視図。FIG. 4 is a perspective view of a conventional planar antenna.
１ 誘電体基板 ２ 地板 ３ 支柱 ４ アンテナ素子 ５ 給電端 ６ 開放端 ７ 給電点 ８ 給電ピン ９ 給電線 １０ 整合回路 １１ 平面アンテナ １２ 筐体 １３ フロント側ケース １４ 線状アンテナ １５ 回路基板 １６ ヘリカルアンテナ １７ 逆Ｆアンテナ １８ 短絡導体 1 Dielectric Substrate 2 Base Plate 3 Support 4 Antenna Element 5 Feeding End 6 Opening End 7 Feeding Point 8 Feeding Pin 9 Feeding Line 10 Matching Circuit 11 Planar Antenna 12 Housing 13 Front Side Case 14 Linear Antenna 15 Circuit Board 16 Helical Antenna 17 Inverse F antenna 18 Short-circuit conductor
Claims (3)
具備しない内蔵平面アンテナにおいて、１／４波長の電
気的長さを有する蛇行状アンテナ素子と、該アンテナ素
子を地板から一定の高さに平行に保持する保持手段とを
具備し、該アンテナ素子の一端を給電端にし、他端を開
放端にすることを特徴とする内蔵平面アンテナ。1. A built-in planar antenna which does not have a short-circuit means built in a housing of a portable radio, and has a meandering antenna element having an electrical length of ¼ wavelength, and the antenna element is fixed from a ground plane. A built-in planar antenna, comprising: holding means for holding the antenna element parallel to the height, wherein one end of the antenna element is a feeding end and the other end is an open end.
面上に、前記蛇行状アンテナ素子が一端の給電端と他端
の開放端を、該給電端を携帯無線機の筺体中心側にし開
放端を該筺体上部のケース間近になる形状に形成され、
該誘電体基板が携帯無線機の筺体内上部に配置されるこ
とを特徴とする請求項１記載の内蔵平面アンテナ。2. The meandering antenna element has a feeding end at one end and an open end at the other end on the surface of the dielectric substrate on the side of the ground plane or the opposite side, and the feeding end is set to the center side of the housing of the portable wireless device. The open end is formed into a shape close to the case above the housing,
The built-in planar antenna according to claim 1, wherein the dielectric substrate is arranged in an upper part of a housing of a portable wireless device.
他端の開放端を、該給電端を携帯無線機の筺体内中心側
にし開放端が該筺体上部のケース間近になる形状に薄い
板金を打ち抜いて形成され、携帯無線機の筺体内上部に
配置されることを特徴とする請求項１記載の内蔵平面ア
ンテナ。3. The thin meandering antenna element is thin in a shape such that the feeding end at one end and the open end at the other end are located at the center of the housing of the portable wireless device and the open end is close to the case at the upper part of the housing. The built-in planar antenna according to claim 1, wherein the built-in planar antenna is formed by punching out a sheet metal and is arranged in an upper part of a housing of a portable wireless device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29829695A JPH09139621A (en) | 1995-11-16 | 1995-11-16 | Built-in plane antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29829695A JPH09139621A (en) | 1995-11-16 | 1995-11-16 | Built-in plane antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09139621A true JPH09139621A (en) | 1997-05-27 |
Family
ID=17857814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29829695A Pending JPH09139621A (en) | 1995-11-16 | 1995-11-16 | Built-in plane antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09139621A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063618A1 (en) * | 1998-06-03 | 1999-12-09 | Ericsson, Inc. | Multiple frequency band antenna |
| EP1191627A2 (en) * | 2000-09-20 | 2002-03-27 | Samsung Electronics Co., Ltd. | Built-in single band antenna device and operating method thereof in mobile terminal |
| WO2003075398A1 (en) * | 2002-03-01 | 2003-09-12 | Ryhaenen Heikki | Multifrequency antenna |
| KR100416885B1 (en) * | 2001-07-27 | 2004-02-05 | (주)신아정보통신 | Small antenna of wireless data communication |
| EP1505689A1 (en) * | 2003-08-08 | 2005-02-09 | Hitachi Metals, Ltd. | Chip antenna device and communications apparatus using same |
| US6995710B2 (en) | 2001-10-09 | 2006-02-07 | Ngk Spark Plug Co., Ltd. | Dielectric antenna for high frequency wireless communication apparatus |
| JPWO2005062416A1 (en) * | 2003-12-18 | 2007-07-19 | 三菱電機株式会社 | Portable radio |
| KR100761227B1 (en) * | 1999-07-12 | 2007-09-28 | 소니 가부시끼 가이샤 | Diversity antenna system and mobile communication terminal |
| CN100375333C (en) * | 1999-08-24 | 2008-03-12 | 兰茨斯塔国际公司 | Asymmetric dipole antenna assembly |
| CN100448101C (en) * | 2004-10-15 | 2008-12-31 | 乐金电子(中国)研究开发中心有限公司 | Wideband antenna of mobile communication terminal |
| WO2019107775A1 (en) * | 2017-11-28 | 2019-06-06 | Samsung Electronics Co., Ltd. | Electronic device comprising antenna |
| US11735813B2 (en) * | 2020-05-14 | 2023-08-22 | Taoglas Group Holdings Limited | Antenna structures and antenna assemblies that incorporate the antenna structures |
-
1995
- 1995-11-16 JP JP29829695A patent/JPH09139621A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063618A1 (en) * | 1998-06-03 | 1999-12-09 | Ericsson, Inc. | Multiple frequency band antenna |
| KR100761227B1 (en) * | 1999-07-12 | 2007-09-28 | 소니 가부시끼 가이샤 | Diversity antenna system and mobile communication terminal |
| CN100375333C (en) * | 1999-08-24 | 2008-03-12 | 兰茨斯塔国际公司 | Asymmetric dipole antenna assembly |
| EP1191627A2 (en) * | 2000-09-20 | 2002-03-27 | Samsung Electronics Co., Ltd. | Built-in single band antenna device and operating method thereof in mobile terminal |
| EP1191627A3 (en) * | 2000-09-20 | 2004-06-02 | Samsung Electronics Co., Ltd. | Built-in single band antenna device and operating method thereof in mobile terminal |
| US6885346B2 (en) | 2000-09-20 | 2005-04-26 | Samsung Electronics Co., Ltd. | Built-in single band antenna device and operating method thereof in mobile terminal |
| KR100416885B1 (en) * | 2001-07-27 | 2004-02-05 | (주)신아정보통신 | Small antenna of wireless data communication |
| US6995710B2 (en) | 2001-10-09 | 2006-02-07 | Ngk Spark Plug Co., Ltd. | Dielectric antenna for high frequency wireless communication apparatus |
| WO2003075398A1 (en) * | 2002-03-01 | 2003-09-12 | Ryhaenen Heikki | Multifrequency antenna |
| US7148851B2 (en) | 2003-08-08 | 2006-12-12 | Hitachi Metals, Ltd. | Antenna device and communications apparatus comprising same |
| EP1505689A1 (en) * | 2003-08-08 | 2005-02-09 | Hitachi Metals, Ltd. | Chip antenna device and communications apparatus using same |
| JPWO2005062416A1 (en) * | 2003-12-18 | 2007-07-19 | 三菱電機株式会社 | Portable radio |
| CN100448101C (en) * | 2004-10-15 | 2008-12-31 | 乐金电子(中国)研究开发中心有限公司 | Wideband antenna of mobile communication terminal |
| WO2019107775A1 (en) * | 2017-11-28 | 2019-06-06 | Samsung Electronics Co., Ltd. | Electronic device comprising antenna |
| US11228105B2 (en) | 2017-11-28 | 2022-01-18 | Samsung Electronics Co., Ltd | Electronic device comprising antenna |
| US11735813B2 (en) * | 2020-05-14 | 2023-08-22 | Taoglas Group Holdings Limited | Antenna structures and antenna assemblies that incorporate the antenna structures |
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| A02 | Decision of refusal |
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