TW490882B - An antenna - Google Patents
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- TW490882B TW490882B TW89110093A TW89110093A TW490882B TW 490882 B TW490882 B TW 490882B TW 89110093 A TW89110093 A TW 89110093A TW 89110093 A TW89110093 A TW 89110093A TW 490882 B TW490882 B TW 490882B
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五、發明說明〇) 【技術領域 本發明之發明領域係有 頻率下操作的介電負載天線關過2 〇 〇ΜΗ ζ的 少兩諧振頻率的天線。 ,、疋在知作頻帶内具有至 【發明背景】 此類型的天線可參見英 8 5 Α。此熟知的天線具有=工:青案“ 2 3 2工7 件,此天線元件在一固體介雷對則向相對的延長天線元 之間延伸,該天線元件在對應間間隔的位置 結端且在第二端連接-到一 ^連接,到一饋入連 套筒。阶卞衡不平衡轉換哭、 尝。配置忒天線元件及套々 ^ 、伏D a 1 u n ) 少兩個導電路徑。其中兩=侍形成繞該心軸延伸的至 線的耦合頻率下另一路徑2中之一路毪的電長度比在天 使用叉形天線元件,其中這要大。達成此目的的方式為 份從介電心軸的四方及70件具有一分開的部份,此部 的一位置處延伸,該天線衡不平衡轉換器套筒的邊緣之間 有不同電長度的分支。平=件中至少一部位的分開部份具 形成縱向延伸的狹縫,如^不平衡轉換器套筒分開,使得 一般,因此在兩套筒部^同在套筒的導電材料處發生破裂 導電路徑。配置平衡不:^間提供絕緣能力,所以形成兩 頻帶下約為四分之—波”衡轉換器狹縫使其電長度在操作 阻抗點將轉換成在分開長(λ / 4),由套筒邊緣提供的〇 部份彼此絕緣開。由二=件之間的高阻抗點,因此將套筒 ;具有不同電長度之導電路徑的結 第6頁 490882 五、發明說明(2) 果,各導電路徑在不同的頻率下諧振,因此提供具有相當 寬頻帶的天線。 有關於上述天線之一項問題為很難將具有足夠長度的 狹縫併入套筒内以提供四分之一波長,尤其是當套筒相當 短的時候。在G B 2 3 2 1 7 8 5 A中提出的L型狹縫很 難製造且限制套筒中的電流。 【發明目的】 依據本發明的第一設計理念,本發明提供一種使用在 大於2 0 0 Μ Η z的頻率下操作的介電負載迴路天線,包 含一由固態材料形成的電絕緣心軸,此材料之相對介電常 數大於5 ,一饋入連結,及一配置在心軸外表面上或是與 其相鄰的天線元件結構,心軸材料佔據由心軸外表面形成 之Μ積的主要部位,其中天線元件整個包舍…對;侧向相對 之延長元件群,各群包含第一及第二相鄰的延長元件,.這 些元件隨該天線的操作頻帶内具有不同的電長度,且在饋 入連結區域中耦合對應的第一端,且由一繞心軸延伸的連 結導體耦合對應的第二端,因此各群的延長元件形成一延 長通道中至少一部份,此部份在電長度在該頻帶賽在η λ / 2的區域内,且其主要部位位在元件之間,且其中該兩 群的第一元件形成一第一耦合導電路徑部份,且該兩元件 的第二元件形成第二耦合導電路徑部份,使得該路徑在該 頻帶内具有對應的諧振頻率,且從饋入連結向連結導It延 伸,且然後回到饋入連結處。V. Description of the Invention 0) [Technical Field] The field of the invention is an antenna with a dielectric load that operates at a frequency that has passed through 200 MHz and a small two-resonance antenna. ,, 疋 in the known frequency band [Background of the invention] This type of antenna can be found in English 8 5 Α. This well-known antenna has 7 parts: 2 cases, 2 cases, 2 pieces, 2 pieces, 2 pieces of this antenna element, and a solid dielectric lightning pair extending between the opposite extended antenna elements, and the antenna elements are terminated at corresponding intervals and Connect at the second end-to a ^ connection, to a feed connection sleeve. Unbalanced conversion, crying, tasting. Configuration 忒 antenna element and sleeve 々 ^, volt D a 1 un) less two conductive paths. Two of them = the electrical length of one ballast in the other path 2 at the coupling frequency of the line to the line extending around the mandrel is larger than the use of a fork antenna element, which is larger. The way to achieve this is to share The four sides of the dielectric mandrel and 70 pieces have a separate part, which extends at a position. The antenna weighs unbalanced converter sleeves with branches of different electrical lengths between the edges. Flat = at least one of the pieces The separated part of the part has a slit extending longitudinally, such as the unbalanced converter sleeve is separated, which is normal, so the conductive path of the two sleeves is the same as the conductive material in the sleeve. The configuration is not balanced: ^ Provides insulation capacity, so the formation of two bands For the quarter - wave "value converter converts the length of the slit so as to electrically separate the length (λ / 4), part of the square edge insulation provided by the sleeve apart from each other in the operating point impedance. From two = high impedance points between pieces, so sleeves; junctions with conductive paths with different electrical lengths Page 6 490882 V. Description of the invention (2) As each conductive path resonates at different frequencies, it provides Antenna with fairly wide frequency band. One problem with the antennas described above is that it is difficult to incorporate a slot of sufficient length into the sleeve to provide a quarter wavelength, especially when the sleeve is relatively short. The L-shaped slit proposed in G B 2 3 2 1 7 8 5 A is difficult to manufacture and limits the current in the sleeve. [Objective of the Invention] According to the first design concept of the present invention, the present invention provides a dielectric load loop antenna that operates at a frequency greater than 200 MHz and includes an electrically insulating mandrel formed of a solid material. The relative permittivity of the material is greater than 5, a feed connection, and an antenna element structure disposed on or adjacent to the outer surface of the mandrel. The mandrel material occupies the main part of the M product formed by the outer surface of the mandrel, of which The antenna elements are all covered ... pairs; sideways opposite extension element groups, each group includes first and second adjacent extension elements. These elements have different electrical lengths within the operating frequency band of the antenna, and are fed in The corresponding first end of the coupling region is coupled, and the corresponding second end is coupled by a connecting conductor extending around the mandrel. Therefore, the extension elements of each group form at least a part of an extension channel. The frequency band is in the region of η λ / 2 and its main part is located between the elements, and the first elements of the two groups form a first coupling conductive path portion, and the first The two elements form part of the second coupling conductive path, so that the path has a corresponding resonance frequency in the frequency band, and extends from the feed link to the link guide It, and then returns to the feed link.
五、發明說明(3) 本發明之 圍的其他各項 此 η λ / ( 路及連結導體 在天線元件之 好,整個通道 經由配置 電路徑,其中 率下另一路經 對於天線具有 符合行動電話 連結導體 的四分之一波 縱向延伸的饋 中,由,一整體 連結導體,各 體可由繞心車由 筒的優點為天 饋入器結構下 在較佳實 連結定位在心 端面。該心軸 上共同延伸, 間隔位置之間」 其他設計理念及較佳特性可參見中請專利範 2或狹縫使其可在由天、線元件形成 電迴 之間提供絕緣。因為此通道的主要部位定位 間’可減少對於天線其他部位的干擾。最 位在天線元件之間。 天線元件及連結導體以形成至少兩迴路的導 兩路徑之^一路控的雷且# , ]晃長度大於在天線操作頻 一生具有至少兩諧振峰值的頻率響應, 寬。’際上,可選擇諧振頻率使 系統之傳輸及接收的中心頻率。 :由在與饋入連結相反端相鄰心轴外表面上 t衡不平衡轉換器形成,此由通過心軸之 二:f構提供此饋入連結。在-較佳實施例 導雷攸不平衡轉換器套筒,或凹陷區形成此 導電路控包含套筒的邊緣。另外,各連結導 i:::電帶形成。該平衡不平衡轉換器套 ::在平衡模式下從迴路饋入器結構的單邊 2 =中1 一般該天線心軸為圓柱形,且饋入 形成一在。群中各延長元件耦合到該 各元件在!軸,且該天線元件實際上在軸向 廷伸,ΐ二Γ轴之外或與其因此的軸向給定 使侍在各空間間隔位置處,天線元件 五、發明說明(4) 之對應空間間隔部位實 平面上。在此例子中, 線元件5該迴路導電路 及第二天線元件到該 換杰套筒’且經第一或 線元件為伸長螺旋,繞 的輕射場型,其側邊^ 日本發明較佳實施例 長1供平衡不平衡轉換器 衡模式,包含繞平衡不 換器的電流路徑。在此 國專利申請案案號9 8 本文之參考文件。因此 關·即一單邊模式及一 四個諧振峰值,因此提 在至少5%(最好8%) 内的響應,其值可上到 明之較佳實施例的天線 適於使用在行動電話中 8〇ΜΗζ 之 DCS-] S1900頻帶中。V. Description of the invention (3) Other aspects of the invention: η λ / (The path and the connecting conductor are good at the antenna element. The entire channel is configured with an electrical path, of which the other path has a mobile phone connection for the antenna. The quarter-wave longitudinally extending feed of the conductor is composed of an integrally connected conductor, and each body can be positioned on the end face of the core under the structure of an antenna feeder. Common extension, between spaced positions "For other design concepts and better characteristics, please refer to Patent Application No. 2 or slits to provide insulation between the electrical loops formed by antennas and line elements. Because the main parts of this channel are located between 'It can reduce interference to other parts of the antenna. It is located between the antenna elements. The antenna element and the connecting conductor to form at least two loops of the two paths are controlled by one way and the thunder length is greater than the lifetime of the antenna operating frequency. Frequency response with at least two resonance peaks, wide. In the end, the resonance frequency can be selected to make the center frequency of the transmission and reception of the system. The t-balance unbalanced converter is formed on the outer surface of the opposite mandrel adjacent to the mandrel, and this feed connection is provided by the mandrel two: f structure. In the preferred embodiment, the lead-unbalanced converter sleeve, or The recessed area forms the edge of the conductor containing the sleeve. In addition, each link conductor i ::: electric band is formed. The balanced and unbalanced converter sleeve :: from the single side of the loop feeder structure in balanced mode 2 = Medium 1 Generally, the antenna mandrel is cylindrical, and the feed forms a one. Each extension element in the group is coupled to the element! Axis, and the antenna element actually extends in the axial direction, outside the two Γ axes. Or with its axial setting, the antenna element is located on a solid plane corresponding to the space interval of the antenna element V. Invention Description (4). In this example, the loop conducting circuit of the line element 5 and the second The antenna element is replaced with the sleeve, and the first or wire element is an elongated spiral, wound light field type. Its side is ^ Japan ’s preferred embodiment of the invention. Balancing the current path of the converter. Patent application in this country Case No. 9 8 is the reference document of this article. Therefore, a single-sided mode and one or four resonance peaks are closed, so the response within at least 5% (preferably 8%) is provided, and the value can be up to the preferred embodiment of Ming. The antenna is suitable for use in the DCS-] S1900 band of 80MHz in mobile phones.
際上置於包含心軸之φ、 各群的延長元件包含第— 單 徑從饋入連結延伸,經群及第二天 連結導體,其型式如平^疋件的第 第二天線元件返回饋入連=平衡轉 該心軸圓柱形。此結構產、、、"。該天 向垂直單一平面之凹陷區 的天線 的天線具有四種諧振模式。 套筒,其提供諧振的單^械^由於 平衡轉換裔邊且通過平衡不^ = 方式中提出使用迴路模式,^轉 …◦“,該篇文i在以 、,,兩諧振模式與各群中各兩元件相 平衡模式,所得到的諧振響應具有 供更大的頻寬。此諧振模式基本上 的分部頻寬上產生在3 〇 d B限制 1 1 % ’係由此將於下文中加以說 戶斤得到者。此響應使得天線尤其是 ’如使用在1 7 1 Ο Μ Η z到1 8The extension element that is placed on the φ containing the mandrel and each group includes the first-single-path extending from the feed connection, and then returns to the second antenna element through a group and the next-day connection conductor. Feed Coupling = Balance the cylindrical shape of the mandrel. This structure produces ,,, ". The antenna of the sunken area in the vertical single plane has four resonance modes. Sleeve, which provides a resonant unit ^ ^ Because of the balanced transformation of the edge and through the balance ^ = way, the use of the loop mode is proposed, ^ turn ... ◦ ", this article i in ,,,, two resonance modes and groups The phase balance mode of the two elements in each of the two components, the resulting resonance response has a larger bandwidth. The fundamental partial bandwidth of this resonance mode is generated at 30 d B limit 1 1% ' Let's talk about household gainers. This response makes the antenna especially 'as used at 1 7 1 0 Μ Η z to 1 8
_8〇〇頻帶或結合的PCS-DC 【技術内容】 本發明包含一種在超過2 〇〇ΜΗζ的頻率下操作的_800 band or combined PCS-DC [Technical content] The present invention includes an operation at a frequency of more than 2000 MHz
490882 五、發明說明C5) 天線,包含一固體材料的電絕緣心軸,該材料之對應介電 常數大於5,一饋入連結,及一配置在該心轴的外表面或 與其相鄰處的天線元件結構,且包含第一及第二對天線元 件,其中各對元件的配置實際上在直徑的兩端彼此相對, ‘ 該心軸的材料佔據由心軸外表面形成之體積的主要部位, - 且形成該第二對的主要部位,因此其寬度比第一對元件還 -要寬。此天線尤其適於接收圓形極化信號,如由全球定位 系統在1 5 7 5 Μ Η z下傳輸者。通常配置此天線使具有 兩元件對,一對的元件比另一對長。不同的長度產生相對 差以接收圓形極化信號。因為上述與本發明有關的第二對 _ 比第一對寬,所以第二對的電長度比第一對的電長度長 (甚至實際上兩者具有實際長度)。不似上述GP S型式的 ^ 接收天線,其中天線的實際長度不同,且文中提出的天線 . 可產生具有實際上相同的長度,以避免元件的形狀過於複 雜或者是與導體相耦合。 【較佳實施例】 現在請參考圖一,本發明之較•佳天線具有一天線元件 結構,其包含單一對侧向相對的天線群1 0 A Β ,1 0 C φ D。各群包含一互相相鄰且一般平行的伸長天線元件1 0 A,1 〇 B,1 0 C,1 0 D,這些天線元件置於天線心 車由1 21的圓柱形表面。心轴1 2具有一轴向通道1 4 ,其 · 具有一内部金屬襯裡,該軸向通道1 4框住為介電絕緣鞘 1 7所包圍的軸向内部饋入器導體1 6。該内部導體1 6490882 V. Description of the invention C5) The antenna includes an electrically insulating mandrel of solid material, the corresponding dielectric constant of the material is greater than 5, a feed connection, and a disposition on the outer surface of the mandrel or adjacent thereto. The antenna element structure includes a first and a second pair of antenna elements, wherein the arrangement of each pair of elements is actually opposite to each other at both ends of the diameter. 'The material of the mandrel occupies the main part of the volume formed by the outer surface of the mandrel, -And form the main part of the second pair, so its width is wider than that of the first pair of elements. This antenna is particularly suitable for receiving circularly polarized signals, such as those transmitted by the Global Positioning System at 155 MHz. This antenna is usually configured so that it has two element pairs, with one element having a longer element than the other. Different lengths produce relative differences to receive circularly polarized signals. Because the second pair _ described above in relation to the present invention is wider than the first pair, the electrical length of the second pair is longer than the electrical length of the first pair (even the two actually have actual lengths). ^ Receiving antennas that are not similar to the above-mentioned GP S type, in which the actual lengths of the antennas are different, and the antennas proposed in the article can be produced with substantially the same length to prevent the shape of the components from being too complicated or coupled with the conductor. [Preferred Embodiment] Referring now to FIG. 1, a relatively good antenna of the present invention has an antenna element structure including a single pair of side-to-side antenna groups 10 A Β and 10 C φ D. Each group contains an elongated antenna element 10 A, 10 B, 10 C, 10 D, which are adjacent to each other and generally parallel. These antenna elements are placed on the cylindrical surface of the antenna cart 1-21. The mandrel 12 has an axial channel 1 4 which has an internal metal lining which frames the axial internal feeder conductor 16 surrounded by a dielectric insulating sheath 17. The inner conductor 1 6
第ίο頁 490882 五、發明說明(6) 及襯裡共同形成一饋入器結構1 8,以將一饋入線耦合到 在心轴]2之末端面2 D上的饋入位置處的天線元件1 〇 A - 1 〇 D。該天線元件結構包含對應的徑向元件1 〇 A R,10BR,10CR,10DR,其形成如一在未端 面1 2D上的金屬導體,其中該未端面連接元件1 0A-1 0 D的第一端到饋入器結構。 在此實施例中,轴向延伸元件1 0 A- 1 〇 D及徑向 元件約具有相同的實際長度,各元件為一伸長螺旋的型 式.,其繞心軸1 2的軸半圈。各天線元件群包含第一元件 10A,10C及第二元件10B, 10D。配置兩群的 第一元件1 0A,1 0C以對於各群的第二元件1 0B , 1 0 C具有不同的電長度,考量第一元件的寬度比第二元 件的寬度寬。須了解寬元件傳播信號的速度低於窄元件的 表面。 為了形成完整的導電迴路,各天線元件(1 0A-1 〇 D )連接一共同虛擬接地導體的邊緣2 0 U,該導體形如 一包圍心軸1 2的最近端部位,作為用於伸長元件1 0 A -10D的連結導體。套筒12又經由在心軸12的未端 面1 2D連接到軸向通道1 4的襯裡。因此由第一群1 0 AB的第一或第二天線元件,套筒2 0U的邊緣,及第二 群1 0 C D的對應第一或第二天線元件中任何一項所形 成。 在經天線之任何給定的橫向截面,第一群1 0 A B的 第一及第二天線元件實際上在直徑方向與第二群1 0D的Page ί 490882 5. The invention description (6) and the lining together form a feeder structure 18 to couple a feeder line to the antenna element 1 at the feed position on the end surface 2 D of the mandrel] 2. A-1 OD. The antenna element structure includes corresponding radial elements 10AR, 10BR, 10CR, 10DR, which are formed as a metal conductor on the end surface 12D, wherein the first end of the end surface connection element 1 0A-1 0 D is Feeder structure. In this embodiment, the axially extending elements 10 A- 10 D and the radial elements have approximately the same actual length, and each element is of an elongated spiral type. It has a half-circle around the axis of the mandrel 12. Each antenna element group includes first elements 10A and 10C and second elements 10B and 10D. The two groups of the first elements 10A, 10C are configured to have different electrical lengths for the second elements 10B, 10C of each group, considering that the width of the first element is wider than the width of the second element. It is important to understand that wide components can propagate signals faster than narrow components. In order to form a complete conductive circuit, each antenna element (10A-1 OD) is connected to the edge 20 U of a common virtual ground conductor, which is shaped like a proximal end portion surrounding the mandrel 12 as an extension element 1 0 A -10D connecting conductor. The sleeve 12 is in turn connected to the lining of the axial channel 14 via the end surface 12D of the mandrel 12. It is thus formed by any one of the first or second antenna element of the first group 10 AB, the edge of the sleeve 20U, and the corresponding first or second antenna element of the second group 10 CD. In any given transverse cross section through the antenna, the first and second antenna elements of the first group 10 A B are actually
第11頁 490882 五、發明說明(?) 對應之第一及第二元 侗一平面上,此平面勺上對°須了解的末端實際上均配置 標系統的X及ζ φ ^合心轴的軸,而且以圖一所示之座 導雷表μ 輛不出來。 V電套间2 〇覆蓄+ 入器結構1 8 ,心# = f線心軸1 2的最近部位,包圍饋 道1 4的金屬襯裡 才料實際上填入套筒2 0及軸向通 合形成一平衡不 3的整個空間。套筒2 〇及焊接的結 之傳輪線中的信號在—奐器,因此由饋入器結構1 8形成 換,其中該平^離二不平衡狀態及一平衡狀態之間轉 筒2 〇上端2 〇丨心在天線的最近端,而平衡狀態在套 設計套筒的轴向具=軸向位置1為了達到此效應, 圭好 向長度使传备具有相當南介電常數的下層心 現時’平衡不平衡轉換器在天線的操作頻帶下約 二 4或者是9 0度。因為天線的心軸材料具有一前短 ,應1且包圍内部導體的環狀空間充填具有相當小介電常 的、纟巴緣介電材料,所以在套筒之末端的饋入器結構丄8 =^短電長度。結果,在饋入器結構i 8之末端的信號至 乂为在平衡處。結果,在饋入器結構i 8末端的信號至少 、力在平衡狀恶。套筒2 〇的另一項效應為對於在天線操作 頻率處的頻率,套筒2 〇的邊緣部份2 〇 u與饋入器結構 的外部導體所表示的地面絕緣。此意謂著在天線元件丄〇 - 1 0 D之間循環的電流實際上了解在邊緣部位。因此, 當天線不平衡模式下諧振時,套筒動作如一隔離井。 經由各群10AB,10CO的第一及第二天線元件 在給定的頻率下形成具有不同的電長度,由這些天線元件Page 11 490882 V. Description of the invention (?) On the corresponding first and second element planes, the ends on this plane that must be understood are actually configured with X and ζ φ of the standard axis. Shaft, and the mine guide table μ shown in Figure 1 does not come out. V electric suite 2 〇 Overlay + inserter structure 1 8, the core # = the closest part of the f mandrel 12, the metal lining surrounding the feed channel 14 is actually filled into the sleeve 20 and the axial connection Form an entire space that is not balanced. The signals in the sleeve 2 and the welded knot transmission line are in the device, so the feeder structure 18 is formed to change, wherein the cylinder 2 is between the unbalanced state and the balanced state. The upper end is centered on the nearest end of the antenna, and the equilibrium state is in the axial direction of the sleeve design. The axial position = axial position 1. In order to achieve this effect, the length of the lower layer makes the transmission device have a relatively low dielectric constant. 'Balanced unbalanced converter is about two 4 or 90 degrees in the operating band of the antenna. Because the mandrel material of the antenna has a short front, should be 1 and the annular space surrounding the inner conductor is filled with a relatively small dielectric constant, 纟 bar edge dielectric material, so the feeder structure at the end of the sleeve 丄 8 = ^ Short electrical length. As a result, the signal to 末端 at the end of the feeder structure i 8 is at equilibrium. As a result, the signal at the end of the feeder structure i 8 is at least and the force is balanced. Another effect of the sleeve 2 0 is that for frequencies at the antenna operating frequency, the edge portion 2 0 u of the sleeve 2 0 is insulated from the ground represented by the outer conductor of the feeder structure. This means that the current circulating between the antenna elements 丄 0-10 D is actually known at the edge. Therefore, when the antenna resonates in unbalanced mode, the sleeve acts like an isolation well. The first and second antenna elements of each group 10AB, 10CO are formed to have different electrical lengths at a given frequency. These antenna elements
490882 五、發明說明(8) 形成的導體迴路具有不同的電長度。結果,天線在兩不同 的諧振頻率下諧振,在此例子中,在元件的寬度下實際上 的頻率不相關。如圖一中所示者,各群中一般平行的元件 在心軸之未端面上的饋入連結區域向平衡不平衡轉換器套 筒2 0的邊緣2 0 U延伸,因此形成一元件間通道1 1 A B,1 1 C D ,係位在各套筒的元件之間。 設計通道的長度以可能在對應的諧振頻率下導電路徑 產生隔離為主。此可在電長度又/ 2或η λ/2下,經由形 成該通道而達到此目的。在二導電迴路之一的諧振頻率 下,在諧振迴路的整個長度上設定一駐波,在與各λ / 2 通道的邊端相鄰處電壓值相等。當一迴路諧振時,形成非 諧振迴路部份的天線元件與相鄰諧振元件隔離,因為在非 諧振元件各端處相等的電壓導致0電流。當其他的導電路 徑諧振時,同樣地·各迴路與諧振迴路隔離。總言之,在 一導電路徑的諧振頻率下,該路徑處被激發,而同時與其 他的路徑隔離。接著在不同的頻率下至少可得到兩個不同 的諧振,考量該項事項為當一分支諧振時,各分支將負載 其他的導電路徑達到最小。實際上,可繞心軸形成一或多 個互相隔離的低阻抗路徑。 在較佳實施例中,整個通道1 1 A Β及1 1 C D定位 在對應的天線元件10A,10B,及10C,10D之 間。通道可延伸一段相當小的距離而進入套筒2 0内,但 是各通道1 1AB,1 1 CD整個長度中的主要部份位在 天線元件之間。基本上,對於各通道,定位在天線元件之490882 V. Description of the invention (8) The conductor loops formed have different electrical lengths. As a result, the antenna resonates at two different resonance frequencies. In this example, the actual frequency is uncorrelated across the width of the element. As shown in FIG. 1, the feeding connection area of the generally parallel elements in each group on the non-end face of the mandrel extends to the edge 2 0 U of the balun sleeve 2 0, thus forming an inter-element channel 1 1 AB, 1 1 CD, located between the elements of each sleeve. The length of the design channel is mainly to isolate the conductive path at the corresponding resonance frequency. This can be achieved by forming the channel at an electrical length of / 2 or ηλ / 2. At the resonance frequency of one of the two conductive loops, a standing wave is set over the entire length of the resonant loop, and the voltage values are equal at the adjacent ends of the λ / 2 channels. When the primary circuit resonates, the antenna elements forming the non-resonant circuit portion are isolated from adjacent resonant elements, because equal voltage at each end of the non-resonant element results in zero current. When other conducting circuits resonate, similarly, each circuit is isolated from the resonant circuit. In summary, at the resonant frequency of a conductive path, the path is excited while being isolated from other paths. Then at least two different resonances can be obtained at different frequencies. Considering that when a branch resonates, each branch will load the other conductive path to a minimum. In fact, one or more isolated low impedance paths can be formed around the mandrel. In the preferred embodiment, the entire channels 1 1 A B and 1 1 C D are positioned between the corresponding antenna elements 10A, 10B, and 10C, 10D. The channels can extend a relatively small distance into the sleeve 20, but the main part of the entire length of each channel 1 1AB, 1 1 CD is located between the antenna elements. Basically, for each channel,
第13頁 五、發明說明(g) 間的7L,在此“通道的總長。 體,可在平衡模二:::不平衡轉換器2 0作為連結導 電流限制在套筒2 〇的邊缘2=流=群之元件之間的 下,天線可進行單邊槿十f42 ◦ 17。取好,在不同的頻率 的天線元件縱向通過平^ t此電流從各元件使得 端…到在天線末端饋入2 〇且經電鑛 因此,除了兩種先前討論的;向金屬内部襯裡。 路的平衡模式諧振者外,在摔作的^喜卜,即由於兩導電迴 供兩導電路徑。因作的早邊模式中更進一步接 模式中的迴路路徑其、電:j=諧振的導電路徑與在平衡 出現:邊諧振尖值,因::天線存操作頻率響應中 袁好使用相對介電常數g t對應的寬頻。 現在:參考圖—’較佳之天線的:錯錫鈦介電材料。 軸向長度為1 2. lmm。 :直徑為1 O mm,且 繞心;i Γ半圈,且間隙角度從套筒元么?曰A —10 D 度^平衡不平衡轉換器套筒本 s上邊緣里起約2 β m,此係從心軸的最近端面量測起:向長度為4. 2 m l〇A,10c的寬度為ι ΐ5 。各群之第一(寬)元件 的寬度Ή 。元件之間的^而第二⑷元件 1 m m,虽從各元件中心量測起,隔(即通逼寬度)為 m m。在心軸的未端面,饋入器心:元件間隔為4 · 3 1 群之相對第一及第二元件的徑向的直徑為2 mm,各 CR ’及 1 0 BR,1 〇 DR 的寬::份 1 0 AR ’ 1 0 又刀別為1· 9mni及 第14頁 五、發明說明(]〇) 1 - 6 7 汀】m。 ^ 圖二示具有如上所述之 所不,該性能具有四個湯牛的天線的回返耗損。如 74GHz,且對應在=值。峰值25發生在-的路徑,峰值2 6發生在T柄式下由第一(寬)元件所形成 式下由第一元件形成的路· 8 G H z ,且對應在平衡模 Η z ,在單邊模式令由第:值2 7發生在2 · 8 6 G 值28發生在88qh~(乍)元件形成的路徑,而且峰 二元件形成的路徑。須了 2 ’、且對應在平衡模式下由第 其產生的峰值之頻率比窄為寬元件的自電容值較大, 3 d B點量測起)約丄9 I低。#作頻帶β的寬度(從一 1 7 1 ΟΜΗ ζ到丄88 ζ。该天線尤其是適於在 帶或結合的PCs— DCS Z Dcs-18〇〇頻 =適=用在細跑電話應二ο 7下操作,該兩頻 1斗’ ί 〇.11( 1丄%)的區Λ Λ存在一分部頻 作頻π Β寬度與頻帶之中心率5亥为部頻寬定義為操 :天線的回返耗損比在頻帶外、之平二的比率’在該頻帶内 。回返耗損定義為2 ^回返耗損低至少3 d 。及”為在饋入器:i:ii!(Vr/v",在此 f ·電壓。相嗒办^、 霉之饋入終端反射及入1+从 技術。 使用相§低的容忍製造 '一船1置方s加、 =行的方式螺=元件的天線元件結 當操作在平衡模式中垂直平面面=向㈡…橫向且 々门甲其輻射場型具有一 外0882 立、發明說明 αι) -—— -—. 下凹區。因此,輕射揚别立击 的圖形,如圖三水平平面中形如8型式 定輻射场型對應圖1之透視圖的 疋向如圖1及圖三中句冬γ λ7 輻射場型具有兩下凹及缺口,:夭f的:向系統所顯示。 且各集中在γ軸處,中:天;之各側各具有-個, 動電話中,如圖四中所示者,7者。如f天線使用在行 用者的頭部以減少該方向的輻射。 下凹私向使 下心軸之最近端面的導電平衡不哭 及導電層允許天線直拯囡宗士 ^ 、得換-套同2 0 # 接線結構中。有可能將複^ 在印刷電路板或其他的 々 外 圖四中所示者。 除了形成在各群10ΑΒ,lQfn 不同寬度的元件外,可製造各群的元件=#元件作為 度,例如彎曲這些組件。 /、有不同的電長 此將於下文中加以說明本發明的 圖五,此天線適於接收圓形極化信號,:::球:f考附 (G P S }衛星發生的信號。此天線可枯二:糸統 國專利申請案號G B 2 2 9 2 β R ^ 技術中的英 為本文之參考文件,以說明本發明之$ =篇文早在此列 出一具有兩對在直徑方向相對的伸長螺=二==部份。提 件(quadrifilar)天線,該第二對的元件媸兀件的四元 路徑,其偏移心軸之外部圓柱形表面上^ 應的彎曲 因此第二對的元件比依據沒有偏移之 1圓桎形線, 對的路徑還要長。此元件長度的變 ^ ^路桉的第一 勒使侍天線適於傳送或Page 13 V. Description of the invention (g) 7L, here "the total length of the channel. The body can be in balanced mode 2: :: unbalanced converter 2 0 is used to connect the conductive current to the edge 2 of the sleeve 2 0 = 流 = Under the elements of the group, the antenna can be unilateral hibiscus f42 ◦ 17. Take it well, the antenna elements at different frequencies pass longitudinally ^ t This current flows from each element to the end ... to the antenna end In addition to the two previously discussed; in addition to the two previously discussed; lined to the metal interior. The balanced mode resonator of the road, in the fall of the slogan, that is, two conductive paths provide two conductive paths. In the early-side mode, the circuit path in the further connection mode is electrically, j: the conductive path of resonance and the peak value of the side resonance that appears in the balance, because :: the antenna's operating frequency response corresponds to the relative dielectric constant gt Broadband. Now: Refer to the figure—'Better Antenna: Ditintin Dielectric Material. Axial Length is 12.1 mm .: Diameter is 10 mm, and it is centered; i Γ half circle, and the clearance angle is from Sleeve element? Said A -10 D degrees ^ balanced unbalanced converter sleeve Approximately 2 β m from the upper edge of the tube s, which is measured from the nearest end surface of the mandrel: the length is 4.2 ml 0A, and the width of 10c is ι ΐ 5. The first (wide) element of each group The width of the element Ή. The second element 1 mm, although measured from the center of each element, the interval (that is, the force width) is mm. On the non-end face of the mandrel, the feeder core: the element interval is The diameter of the 4 · 3 1 group with respect to the radial direction of the first and second elements is 2 mm, and each CR 'and 10 BR, and the width of 10 DR :: part 1 0 AR' 1 0 and the blade size is 1 · 9mni and page 14 V. Description of the invention (] 〇) 1-6 7 TING] m. ^ Figure 2 shows the return loss of the antenna with four antennas as shown above, such as 74GHz, and Corresponds to = value. The peak 25 occurs in the path of-, and the peak 2 6 occurs in the path formed by the first (wide) element under the T-handle type · 8 GH z and corresponds to the balanced mode Η z, in the unilateral mode, the path formed by the first value 2 7 occurs at 2 · 8 6 G value 28 occurs at 88qh ~ (Cha) element path, and the path formed by the peak two element. 2 ', And the frequency corresponding to the peak generated by the first in the balanced mode is larger than the self-capacitance value of the narrow and wide element, measured from point 3 d B) is about 丄 9 I. ## the width of the band β (from -1 7 1 ΟΜΗ ζ to 丄 88 ζ. This antenna is especially suitable for PCs with or in combination—DCS Z Dcs-18〇〇frequency = suitable = for use in fine-running phones should be operated under 7; the two frequencies are 1 bucket 'ί 〇.11 (1 丄%) in the area Λ Λ has a sub-frequency frequency π Β width and the center rate of the frequency band 5 Hai is defined as the operating bandwidth: the return loss ratio of the antenna is outside the band, flat The ratio of two 'is in this band. Return loss is defined as 2 ^ return loss is at least 3 d lower. And "is in the feeder: i: ii! (Vr / v ", here f · voltage. Phase to do ^, mold feedback terminal reflection and 1 + slave technology. Use phase § low tolerance manufacturing ' A ship with 1 square s plus, = row way, screw = element's antenna element, when operating in balanced mode, vertical plane plane = ㈡ ... laterally, and the radiance pattern of the genitalia has an outer 0882, description of the invention αι ) -—— -——. The recessed area. Therefore, the figure of light strike and strike is shown in Figure 3. In the horizontal plane, the orientation pattern of the fixed radiation field corresponding to type 8 is shown in Figure 1 and Figure 1. The three-sentence winter γ λ7 radiation field type has two depressions and gaps: 夭 f's: shown to the system. And each centered on the γ axis, middle: sky; each side has one, mobile phone, As shown in Figure 4, 7 are used. For example, the f antenna is used on the head of the user to reduce radiation in this direction. The recessed private direction keeps the conductive balance of the proximal end of the lower mandrel from crying and the conductive layer allows the antenna to be straight. Zheng Zhengzhang ^, can change-set the same 2 0 # wiring structure. It is possible to copy ^ as shown in Figure 4 of the printed circuit board or other In addition to the elements formed in each group of 10 Α, lQfn with different widths, the elements of each group can be manufactured = #elements as degrees, such as bending these components. /, There are different electrical lengths This will be explained in the following figure of the present invention Fifth, this antenna is suitable for receiving circularly polarized signals, ::: ball: f kao (GPS} satellite generated signals. This antenna can dry up: National Patent Application No. GB 2 2 9 2 β R ^ The English in the technology is the reference document of this article to explain the invention. The article ==================================================================== (than part over parts in a diameter direction). A quadrifilar antenna, which The quaternary path of the element pair of the second pair is offset by the corresponding bend on the outer cylindrical surface of the mandrel. Therefore, the element of the second pair is more accurate than the one based on the circular line without offset. To change the length of this element ^ ^ The first control of the road antenna makes the antenna suitable for transmission or
490882 本發明 個縱向 "由3 : 一軸向 且通道 及襯裡 應的徑 軸向延 天線490882 The invention ' s longitudinal " from 3: an axial and the diameter of the channel and the lining should extend the antenna
7L 一電鍍 心軸的 五、發明說明(12) 接收圓形極化信號。另一項 案 GB2 3 10543A, 的電鍍套筒。此套筒形成具 之天線元件在近心軸另一端 筒的連結端,此饋入器結構 點還近。 現在請參考圖五,依據 線元件結構,此以及包含四 - 3 0D,其形成如在陶瓷< 金屬導體執。心轴3 2具有 具有一外部金屬襯裡3 4, 3 5。在此例子中導體3 5 件 天線元件結構也包含對 3 0 D R ,其形成如在對應 未端面3 2D上的金屬軌。 的虛擬接地導體,其形成為 部位。套筒4 0又由電鍍在 通道3 3的襯裡。 從圖五可看出,4個軸 有不同的寬度,其中兩元件 的元件在心抽的相反側上形 為了對於伸長螺旋元件維持 遵循一簡單的伸長螺旋路經 同角度,在此為18〇度^ 四元件天線參見英國專利後請 其中天線元件連接到心軸一端 有非平面的邊緣,使得第一對 的饋入為結構處的點上連接套 比連接連結端的第一對元件的 的四元件天線具有一天 延伸的天線元件3 Q A 2之圓柱形外表面上的 通道3 3 ’此軸向通道 内駐一軸向饋入器導體 連接饋入線到天線元 向天線元件3 〇 A R -伸元件之心軸連接端的 件的另一端導致一共同 套筒包圍心軸的最近端 最近末端而連接到軸向 向延伸元件3 〇 A- 3 〇 D具 比其他的兩元件來得寬。各繁 成直徑相對。 '7L One plated mandrel 5. Description of the invention (12) Receive circularly polarized signals. The other case is GB2 3 10543A. This sleeve forms the antenna element near the connecting end of the barrel near the other end of the mandrel, and the structure of this feeder is close. Please refer to FIG. 5 now, according to the structure of the wire element, this as well as containing 4-3 0D, which is formed as in ceramic & metal conductor. The mandrel 3 2 has an outer metal lining 3 4, 3 5. The antenna element structure in this example also includes a pair of 30 D R, which is formed as a metal rail on the corresponding end face 3 2D. The virtual ground conductor is formed as a part. The sleeve 40 is again lined with a channel 33. As can be seen from Figure 5, the four shafts have different widths, and the two elements of the element are shaped on the opposite side of the heart pump. In order to maintain an elongated spiral element, follow a simple elongated spiral path at the same angle, which is 180 degrees. ^ Refer to the British patent for the four-element antenna. Please connect the antenna element to the mandrel with a non-planar edge at one end, so that the feed of the first pair is the four-element connection sleeve at the point of the structure than the first pair of components at the connection end. The antenna has a channel 3 on the cylindrical outer surface of the antenna element 3 QA 2 extending in one day. An axial feeder conductor is located in this axial channel to connect the feed line to the antenna element. The antenna element 3 The other end of the mandrel connection end member results in a common sleeve surrounding the proximal end of the mandrel and connected to the axially extending element 30A-300D which is wider than the other two elements. Each growth diameter is opposite. '
近似均勻的輻射電阻,各元利 二各7L件對應在心軸·的轉動本 半圈。套筒的上連結端4〇 LApproximately uniform radiation resistance. Each 7L piece corresponds to the half turn of the mandrel. 40 L upper connecting end of sleeve
第17頁Page 17
五、發明說明(13) 實際上呈產生形態 各對轴向延伸元件及對應的护 電長度的導體。在此例子中,二,兀件架構一具有預定 決定電長度,而且由元件的;;=天線元件的實際長度 可視為-波導。如熟習本技術;實際上,天線元件 用#號的波速度小於由窄元件 ”者,寬元件傳播作 =,各對窄元件的總電長度對等^速,。在&實施例 度的傳送延遲’其中此寬元件對產::乍波長下約1 3 5 實際上為2 2 5度。所以,平 ^二較長的延遲,對應 等於在操作波長下又/ 2的雷具、雨延遲為1 8 0度, 圓形極化信號的四元、伸♦ 又綠不同的元件寬度對於 態,如…"生需要的相位移狀 J〇urnal , 4 9_ 5 4 頁中 計,,中所指出者。 白振四凡件伸長螺旋設 在徑向元件3 〇 a R » q n u d 〇 A ^ 3 〇 B - m 3 〇 B R的内部端將兩 u Λ J ϋ B的凡件對(即一寬元件及 軸末端的饋入器結構3 6的内 :件)連=到心 徑向元m 而兩其他元件對的 屬襯裡形成的饋入器幕。:軸内部通道的金 3 5上呈現的信號及饋入器幕大約 ja _ ^ ^ x ^ ’ 1可便仔天線7L件呈 現近似的平衡源或負載。 Τ 留伸ί = 元件之伸長螺旋路徑的左手感測,則保 -1 = : 將徑向元件連結的圖樣轉動9 0度。 線適於接收左手及右手圓形極化信號時,彳配置軸向5. Description of the invention (13) In fact, the conductors are in the form of each pair of axially extending elements and the corresponding protective length. In this example, two, the element structure one has a predetermined electrical length determined by the element;; = the actual length of the antenna element can be regarded as a -waveguide. As you are familiar with this technology; in fact, the wave velocity of the antenna element with # is smaller than that of the narrow element ", the wide element propagation is equal to =, and the total electrical length of each pair of narrow elements is equal to the speed. Transmission delay 'Where this wide element is produced :: about 1 3 5 at the first wavelength is actually 2 2 5 degrees. Therefore, the longer delay is equal to the lightning arrester and rain at the operating wavelength / 2 The delay is 180 degrees, and the quaternary, stretched, and green elements of the circularly polarized signal have different element widths. For the states, such as the phase shift state required by the Journal, 4 9_ 5 4 The four-piece extension spiral of Bai Zhen is set on the radial element 3 〇a R »qnud 〇A ^ 3 〇B-m 3 〇BR The internal end of the two pairs of u Λ J ϋ B (ie A wide element and the inner end of the feeder structure 3 6 of the shaft: pieces) connected = to the radial element m of the core and two other element pairs formed by the lining of the feeder screen .: The inner channel of the shaft on the gold 3 5 The signal and feeder screen presented are approximately ja _ ^ ^ x ^ '1 The 7L piece of portable antenna presents an approximately balanced source or load. Τ Extending = = Yuan The left-hand sensing of the elongated spiral path of the piece is guaranteed to be -1 =: the pattern connecting the radial elements is rotated by 90 degrees. When the line is suitable for receiving left-handed and right-handed circularly polarized signals, 彳 configure the axial direction
490882 五、發明說明(14) ~ 延伸元件以依循一般平行的路徑。 導電套筒4 0涵蓋天線心轴的部 結構3 6,而心軸材料充填套筒4 〇 ’因此包圍饋入器 屬襯裡之間的整個區域。該套筒軸向通道3 3之金 1 B的圓柱形,且由電鍍的結合 $成具有軸向長度為 器,使得由饋入器結構3 6形成‘傳鈐:衡不:衡轉換 的最近端之不平衡狀態及在軸向别、、、上的信號在天線 轉換,其中該轴向位置一般與套;彳之近似平衡狀態之間 距最近端有相同或更大的距離。^ j連結端4 0U —般 均套筒長度使得當相當高之相對介=此效應,設計平 出現時,平衡不平衡轉換器在的下層心軸材料 長度為Λ/4。因為天線的心轴天: 圍内部導體的環狀空間充填一呈 ♦引紐政應,且包 介電材料,在套筒末端的饋人;社』介電常數的絕緣 果,在饋入器結構末端的作號至小/、、,紐的電長度。結 中的絕緣介電常數基;上二陶 吊數低,可參考上述說明,'度材料的介電 數約2 · 2。 E的相對介電常 、、在套筒4 0處形成的凹陷提供沿 流過在元件之間的電流而 ^ 鳊的環狀路徑 ::天線-件,而第二迴路包含寬天線元J 迴路包 Π /大電流存在元件的末D及連結端四元件譜 上0U及末端之間近中途處存在最大:〇u,及在端 有效地與在最近端的地面連接器隔離,考。:4 0 U可 _ 里田奮筒4 0產 Ή 第19頁490882 V. Description of the Invention (14) ~ Extend the element to follow a generally parallel path. The conductive sleeve 40 covers the part structure 36 of the antenna mandrel, and the mandrel material fills the sleeve 4 0 'so as to surround the entire area between the feeder liners. The sleeve has a cylindrical shape of a gold channel 1 3 of the axial channel 3 3, and is formed by a combination of electroplating to have an axial length device, so that the feeder structure 3 6 is formed. The unbalanced state at the end and the signals on the axis ,, and are switched at the antenna, where the axial position is generally equal to or greater than the nearest end from the sleeve's approximate equilibrium state. ^ j connection end 4 0U-generally the average sleeve length is such that when a relatively high relative medium = this effect, when the design flat appears, the length of the lower mandrel material of the balun is Λ / 4. Because the antenna's mandrel is filled with a ring-shaped space surrounding the inner conductor, it is filled with a dielectric material and contains dielectric materials at the end of the sleeve; the dielectric constant dielectric insulator is in the feeder structure. The end of the number to the small / ,,, the electrical length of the button. The dielectric constant base of the junction; the upper two ceramics have a low hanging number. Refer to the above description. The dielectric number of the material is about 2 · 2. The relative dielectric constant of E, the recess formed at the sleeve 40 provides a circular path ^ 沿 along the current flowing between the elements :: antenna-piece, and the second loop contains a wide antenna element J loop There is the largest D: at the mid-point between 0U and the end of the four-element spectrum at the end of the package and the high-current-existing component: 0u, and it is effectively isolated from the ground connector at the nearest end. : 4 0 U 可 _ Litian Fentong 4 0 production Ή Page 19
490882 五、發明說明(15) 生的四分之一波長 天線有一主諧 3天線元件3 0 A -對於給定的諧振頻 介電常數而定。天 線者還小。 心軸之較佳材 上述對應的介電常 定性。可省略介電 須了解,因為元件 長度,該元件可形 要複雜的元件及/資 進一步簡化。 應用具有比如 的介電常數之心軸 L頻帶G P s接收 m m,且縱向延伸 心軸}約1 0 · 5 m m m 及 1 . 5 m m c B基本上在6 mm (e i gnva1ue delay 差,可另外測試及 精確尺寸。 相關於天線的490882 V. Explanation of the invention (15) The quarter-wavelength antenna has a main resonance 3 antenna element 3 0 A-It depends on the dielectric constant of a given resonance frequency. The antennae are still small. Preferred material of the mandrel The above-mentioned corresponding dielectric constant. Dielectrics can be omitted. Because of the component length, the component can be complicated and / or simplified further. Apply a mandrel with a dielectric constant such as L-band GP s to receive mm, and extend the mandrel longitudinally} about 10 · 5 mmm and 1.5 mmc B is basically at 6 mm (the difference between ei gnva1ue delay, can be tested separately and Exact dimensions
由 的凹陷所致 -ο π ^ 〜项率 〇 D的有效電長度決定諧振頻率’ ,兀件的電長度也視心軸材料的。 大J、貝P示上比空氣心軸類似架構天 2 ^以錘鈦為基礎的材料。此材料具有 耗ρ 6 ,且對於溫度呈現大小及電的穩 焉。可由擠壓或壓鑄形成該心車由。 二|不同的度’所以也具有不同的電 、成馬際上類似的物理長度。而真,不需 ^套同,且因此使得設計及製造程序更 空氣之介電常數(如g r二3 6 )還要高 ’如上所述之用於在1 5 7 5MH z之 的天線基本上其心軸直徑基本上約1 Q 天線元件的平均縱向維度(即年行於中 m °窄及元件的寬度約分別為〇 · 7 6 在1 575 MHz處,套筒的長度1 區域。可經由得到固有延遲量測 measurement)確定得至4需要的才目4立 誤差基礎,在設計階段決定夭線元件的 製造方式可參見技術Gg 2 2 9 2 6 3 490882 五、發明說明(16) 8 A 。The depression caused by -ο π ^ ~ term rate 〇 The effective electrical length of D determines the resonance frequency ’, and the electrical length of the element also depends on the mandrel material. Big J, P P show similar structures than air mandrels 2 ^ Hammer titanium-based materials. This material has a loss of ρ 6 and exhibits magnitude and electrical stability to temperature. The core can be formed by extrusion or die-casting. Two | Different degrees' therefore have different electrical, similar physical lengths in Malaysia. In fact, it is not necessary to set the same, and therefore the design and manufacturing process is more high than the dielectric constant of air (such as gr 2 36). As mentioned above, the antenna used in 1 5 7 5MHz is basically The diameter of its mandrel is basically about 1 Q. The average longitudinal dimension of the antenna element (that is, it travels narrowly in the middle m ° and the width of the element is about 0.76 at 1 575 MHz, the length of the sleeve is 1 area. Obtain the inherent delay measurement.) Determine the required error and 4 error bases. Determine the manufacturing method of the reed wire element at the design stage. See technical Gg 2 2 9 2 6 3 490882 V. Description of the invention (16) 8 A .
H11 第21頁 490882 圖式簡單說明 圖一示依據本發明之天線的透視圖; 圖二示圖1之天線的回返耗損; 圖三示圖1天線的輻射場型; 圖四為包含圖1天線之電話手機的透視圖 圖五為依據本發明之另一天線的透視圖。 圖 2 號說明 D 末端面 0 A-1 0D轴向延伸元件 1 3 3 02 46 78 0 5 3 4 0 C D天線群 A B, 心轴 軸向通道 饋入器導體 介電絕緣鞘 饋入器結構 4 0 套筒 2 7,2 8 峰值 軸向通道 外部金屬襯裡 導體 頻率,介電常數H11 Page 21 490882 Brief description of the diagram Figure 1 shows a perspective view of the antenna according to the invention; Figure 2 shows the return loss of the antenna of Figure 1; Figure 3 shows the radiation pattern of the antenna of Figure 1; Figure 4 contains the antenna of Figure 1 Perspective view of a telephone handset Figure 5 is a perspective view of another antenna according to the present invention. Figure 2 illustrates D end surface 0 A-1 0D axially extending element 1 3 3 02 46 78 0 5 3 4 0 CD antenna group AB, mandrel axial channel feeder conductor dielectric insulation sheath feeder structure 4 0 Sleeve 2 7, 2 8 Peak frequency of the outer metal liner conductor of the axial channel, dielectric constant
第22頁Page 22
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/372,865 US6300917B1 (en) | 1999-05-27 | 1999-08-12 | Antenna |
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TW490882B true TW490882B (en) | 2002-06-11 |
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Family Applications (1)
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TW89110093A TW490882B (en) | 1999-08-12 | 2000-05-25 | An antenna |
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