1354398 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種内嵌螺旋電感之微帶天線之結構，. 特別係提供螺旋電感並内嵌於微帶天線中，用以降低共振 頻率或縮短天線長度。 【先前技術】 目前國内的行動電話除了新一代的手機外就屬 GSM及PHS兩種系統，而GSM手機因功率強、收訊佳等 特點，始終比PHS手機較受消費者歡迎而佔行動通訊市場 的最高佔有率，然而GSM手機所產生的高電磁波，因使 用者擔心對人體造成影響，使pHS手機逐漸受到消費大眾 的青睞’而漸有後來居上之勢。1354398 IX. The invention relates to the structure of a microstrip antenna with embedded spiral inductor. In particular, a spiral inductor is provided and embedded in a microstrip antenna to reduce the resonance frequency or Shorten the antenna length. [Prior Art] At present, the domestic mobile phone is a GSM and PHS system in addition to the new generation of mobile phones. The GSM mobile phone is always more popular than the PHS mobile phone because of its strong power and good reception. The highest share of the communications market, however, the high electromagnetic waves generated by GSM mobile phones, because users worry about the impact on the human body, making PHS mobile phones gradually favored by the consumer's, and gradually came to the forefront.
或長度縮短。 版向吕， 隨著行動通訊的發展與普及，有愈來愈多新一代輕薄 短小的PHS手機被開發出來，讓手機業者對縮小微帶天線 的而求H切’也提出許多各式各撵的技術來縮小微帶 天線的體積’試_由微帶天線的縮小，設計較小造型的 手機。Μ在《彡響驗解的先決齡下，懸帶天線 ，冒刀口相位變化的方式，增 ’使微帶天線的體積縮小 現今較常用來增加電Or the length is shortened. With the development and popularization of mobile communication, more and more new generations of light and short PHS mobile phones have been developed, and mobile phone operators have made many different designs for reducing the microstrip antenna. The technology to shrink the volume of the microstrip antenna 'test _ by the microstrip antenna to shrink, design a smaller styling phone. Μ Under the premature age of the squeaking test, the sling antenna, the way of changing the phase of the knife edge, increase the size of the microstrip antenna.
電感相位變化的做法係 長的溝槽，並使該槽狀 天線的末端短路， 以增加槽狀天線每單位長度的電感量， 5 讓溝槽中的電場波長縮短，使槽狀天線可在原本尺寸下操 作在較低的頻帶。另外，也可將螺旋槽狀電感接到共振槽 狀天線的末端，以延伸電磁場的路徑來降低共振頻率或^ 小天線長度，或是將原本微帶天線切成兩部分，再用條狀 金屬線或集總電感連接在一起，讓電流流通的路獲鮮， ===時產生相位變化’使共振頻率降二 之微此原理，發明-種具有⑽入螺旋電感 【發明内容】 旋線内嵌入螺旋電感，使電流在流經螺 電，；护=t明顯的相位變化，鑲電感等效於較長的 變傳統微帶錢的婦場型，縮小微帶 天緣約50%的面積。 要目的在於嵌人螺旋電感於微帶天線内， 螺旋電感時可以產生明顯的相位變化，讓電 :==流路徑，而不改變傳統微帶天線的韓射 野盂U縮小微帶天線的面積。 的微==之另—目的在於提出—射躺於PHS手機内 η天線’以内嵌螺旋電感的方式來縮小微帶天線的面 二=二天線的PHS手機能減少内部元件的空間， =缺柏_則、的造型，符合目前歷手機的市場偏 此外，本發明係利用歲入螺旋電感來縮小微帶天線面 積’保留其電磁ϋ射特性，如線性極化與全方位性場型， ί結構簡單’不僅易於製造生產，也易於與其它平面電路 正合’係-應用範圍社具有產業價值的微帶天線結構。 基於前述，本發明主要係具有一天線元件以及一饋入 饋出7L件，其巾，該天線元件的導線圖案 電感部，使㈣天線元件所形成的天線共振結射，^ 為該些螺魏感部峰伸€歸的路徑，降低丘振 頻率或縮短天線長度的效果。 …、又 前述之饋入饋出元件中具有一第二介電層，該第二介 電層係-介電材質’並於上、下表面分別鋪設—第二導線 圖案以及-第三導線圖案。該些導線圖案係導電線路，其 中’該第二導賴案係形成—接地金屬層，該第二導線圖 案局部鏤空形成-鏤空部，且該第三導線圖案係形成一帶 狀金屬層，使得該第二導線賴與第三導_案對應該天 線元件之第一導線圖案而形成電信訊號的耦合效應。另 外，本發明之微帶天線結構的二維尺寸參數係可利用微帶 天線之電腦模擬或數值模擬，在所需之操作頻率下，找出 最佳化的二維尺寸參數。 因此，在前述之實施例中，若考慮ΤΜ10模式，當電 流沿著長度延伸方向流動，並經過該些螺旋電感部時，其 相位增加較多，可藉此縮短天線長度。另外，若增加該些 螺旋電感部的圈數，則又可進一步降低其共振頻率。 【實施方式】 以下配合圖式及元件符號，對本發明之實施方式做更 詳細的說明’俾使熟習該項領域者在研讀說明書後能據以 實施。 參考第一、第二以及第三圖所顯示，第一圖係顯示本 發明之微帶天線結構—錄佳實補天線元件結合饋入饋 出件之·見目’帛二關顯示本發明之㈣天線結構之 天線元件第-種較佳實施例的俯視圖，以及第三圖係顯示 本發明微帶天線結構之局部元件較佳實施例的俯視圖。本 發明微帶天縣齡純具有可接钱發㈣定訊號的一 天線7L件(1) ’該天線元件(1)係由一第一介電層（11)中舖設 第導線圖案(12)所構成。該第一介電層（11)係可選擇 FR4、鐵氟龍、Duri〇d、玻璃纖維、氧化紹、陶瓷材料或其 匕介電材料製成的板體所構成。該第一導線圖案(12)係由 導電材質所形成’並包括第—天線部(12a)、第二天線部 (12b)'複數個螺旋電感部(12c)、第一垂直連通部(12d)、第 一垂直連通部(12e)以及水平連通部（i2f)。其中，該第一天 線部(12a)、第二天線部(丨2b)與數個螺旋電感部(丨2c)係佈置 於該第一介電層（11)的上表面，且該些螺旋電感部（12c)係 設置於該第一天線部（12a)與第二天線部（12b)之間，該第一 天線部（12a)之朝向該些螺旋電感部（12c)的端面向下延伸 穿過該第一介電層（11)而形成該第一垂直連通部(12d)，該 螺旋電感部（12c)相連該第一天線部(12a)的一端面向下延 伸穿過該第一介電層（11)而形成該第二垂直連通部（12e)， 一水平連通部(12f)係佈置於該第一介電層（11)的下表面， 且該水平連通部(12f)兩端分別連通該第一垂直連通部(〖2d) 與第二垂直連通部(12e)。 基於前述本發明微帶天線結構之天線元件(1)以及配 合使用之饋入饋出元件(2) ’其各元件的二維尺寸參數定義 包括 L、W、Lg、Wg、Lh、Wh、Lc、Wc、Ts、Ds 以及 Ls，係可利用微帶天線之電腦模擬或數值模擬軟體，在所 需之操作頻率下，找出最佳化的二維尺寸參數。再者，第 一導線圖案（12)、第二導線圖案(22)之鏤空部(22a)以及第三 導線圖案(23)之間的相對位置也係本發明所需要調整的參 數這些參數需配合刚述之二維尺寸參數調整，其中可藉 由調整該鏤空部(22a)之尺寸大小，得到較好的阻抗匹配: 前述之天線元件(1)係配合一饋入饋出元件(2)，而可連 到接收或發射訊號之目的。再次參考第一圖所顯示，該饋 入饋出元件⑺係由一第二介電層⑼上.、下表面分別鋪設 一第二導線圖案(22)以及一第三導線圖案(23)所構成。其 中’該第二介電層(21)係可選擇FR4、鐵氟龍、Duri〇d ;旅 璃纖維、.氡化鋁、陶瓷材料或其它介電材料製成的板體， 該第一導線圖案(22)以及弟二導線圖案(23)則分別係鋪設 第二介電層(21)上、下表面的導電線路，該第二導線圖案(22) 係形成一長度與寬度分別為Lg與Wg的接地金屬層，且該 第二導線圖案(22)局部鏤空形成一鏤空部(22a)，該鏤空邡 (22a)之長度與寬度分別為Lh與Wh，該第三導線圖案(23) 係形成一長度與寬度分別為Lc與Wc的帶狀金屬層，且如 同第二圖所顯示的一虛線區域，係一微帶線對應部(2 3 a)(此 元件顯示於第二圖中）’並用以對應該天線元件(1)之第一導 L及寬度W。 線圖案(12)形成電信訊號的輕合效應，其中該第一導線圖 案⑽的長度歧度分為料，而職帶線對應部 (23a)的長度與寬度分別相同於該第—導線时⑽的長度 度的效果 再次參考第三以及第四圖所顯示，前述天線元件 複數個螺旋電感部㈣係具有特定的螺旋線寬I螺旋線 外徑Ds以及螺旋線距Ls ’且該些螺旋電感部㈣係連接 該天線元件⑴之第-天線部⑽)，使得該第一天線部㈣ 與第-天線部(12b)形成天線共振結構，並延伸該第一天線 部(12a)的電流場路徑，而達到降低共振頻率或縮短天線長 在前述之實施射，料慮復1()财，當電流沿著 L的延伸方向流動，並經過該些螺旋電感部(i2c)時，其相 位增加較多’可祕脑场長度。料，若增加該些螺 旋電感部(12e)的圈數’則可進—步降低其共振頻率。 參考第五、第六以及第七圖所顯示，第五圖係顯示本 發明之内賴㈣感微帶天線結構-較佳實施例之頻率_ 反射係數關侧；第六_顯示本發明之⑽螺旋電感微 帶天線結構-難實關^E_平面細場翻.，以及第七 圖係顯示本發明之内嵌職電感料錢結構—較佳實施 例之H-平面輻射場型圖。為能夠達到符合簡的操^頻 率，該天線元件(1)在中心頻率約為丨91GHz時，其内喪螺 旋電感之微帶天線的返回損失最小，且在中心頻率約“ 1.91GHz時’ SE-平面輻射場型如第六圖所示，以及其 平面輻射場型如第七圖所示。 仙ί'ΐ，以上較佳實施例僅用於示例，而不限於此，此 用技術者可以調整天線元件、饋人饋出元件的 ^維尺寸參數L、w、Lg、wg、Lh、wh、uweTS、 =及Ls，以調整至適當的操作頻率及阻抗匹配更可 調整螺旋電感部(12e)的隨以調整共振頻率。 以上所述僅為用崎釋本發明之較佳實補，並非企 對本發明作任何型式上之限制，是以，凡有在相同 神下所作細本發明之任何鶴或變更，皆仍應 I括在本發明意厨保護之範疇。 【圖式簡單說明】 實施例The phase change of the inductor is a long trench, and the end of the slot antenna is short-circuited to increase the inductance per unit length of the slot antenna. 5 The wavelength of the electric field in the trench is shortened, so that the slot antenna can be in the original size. The next operation is in the lower frequency band. Alternatively, the spiral slot inductor can be connected to the end of the resonant slot antenna to extend the path of the electromagnetic field to reduce the resonant frequency or the length of the antenna, or to cut the original microstrip antenna into two parts, and then use strip metal. The line or the lumped inductor is connected together to make the current flow path fresh, and the phase change occurs when ===, so that the resonance frequency is reduced by two. This invention has a (10) input spiral inductor [invention] Embedded spiral inductor, so that the current flows through the spiral,; protection = t obvious phase change, the embedded inductor is equivalent to a longer change of the traditional micro-banded women's field type, reducing the area of the microstrip edge about 50%. The purpose is to embed the spiral inductor in the microstrip antenna, and the spiral inductor can produce a significant phase change, allowing the electric:==flow path without changing the area of the microstrip antenna of the traditional microstrip antenna. . The other is to propose - to lie in the PHS mobile phone η antenna 'inside the spiral inductor to reduce the surface of the microstrip antenna 2 = two antenna PHS mobile phone can reduce the space of internal components, = lack of cypress _, the shape, in line with the current market of mobile phones. In addition, the present invention uses the annual spiral inductor to reduce the area of the microstrip antenna 'retains its electromagnetic emission characteristics, such as linear polarization and omnidirectional field type, ί simple structure 'It is not only easy to manufacture and manufacture, but also easy to integrate with other planar circuits. The system-application range has an industrial value microstrip antenna structure. Based on the foregoing, the present invention mainly has an antenna element and a feed-in and feed-out 7L piece, the towel, the wire pattern inductance part of the antenna element, causes the antenna formed by the (4) antenna element to resonate, and is the spiral The path of the peak of the sensed part is reduced, and the effect of reducing the frequency of the hill or the length of the antenna is shortened. The feed-in and feed-out element has a second dielectric layer, and the second dielectric layer is a dielectric material and is respectively laid on the upper and lower surfaces - a second wire pattern and a third wire pattern . The wire patterns are conductive lines, wherein 'the second guiding film forms a grounding metal layer, the second wire pattern is partially hollowed out - a hollow portion, and the third wire pattern forms a strip metal layer, so that The second wire and the third wire correspond to the first wire pattern of the antenna element to form a coupling effect of the telecommunication signal. In addition, the two-dimensional size parameter of the microstrip antenna structure of the present invention can be used to find an optimized two-dimensional size parameter at a desired operating frequency using computer simulation or numerical simulation of the microstrip antenna. Therefore, in the foregoing embodiment, considering the ΤΜ10 mode, when the current flows in the length extension direction and passes through the spiral inductor portions, the phase is increased more, thereby shortening the antenna length. Further, if the number of turns of the spiral inductor portions is increased, the resonance frequency can be further lowered. [Embodiment] Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings and the reference numerals, which will enable those skilled in the art to carry out the invention after the study. Referring to the first, second and third figures, the first figure shows the microstrip antenna structure of the present invention - the recorded good antenna element is combined with the feed-in feed member. (d) A top view of a preferred embodiment of the antenna element of the antenna structure, and a third view showing a top view of a preferred embodiment of the local element of the microstrip antenna structure of the present invention. The microstrip Tianxianling pure has an antenna 7L piece (1) which can receive the money (4) fixed signal. The antenna element (1) is laid by a first dielectric layer (11). Composition. The first dielectric layer (11) may be formed of a plate body made of FR4, Teflon, Duri〇d, glass fiber, oxidized material, ceramic material or a tantalum dielectric material. The first wire pattern (12) is formed of a conductive material and includes a first antenna portion (12a), a second antenna portion (12b), a plurality of spiral inductor portions (12c), and a first vertical communication portion (12d). ), a first vertical communication portion (12e) and a horizontal communication portion (i2f). The first antenna portion (12a), the second antenna portion (丨2b), and the plurality of spiral inductor portions (丨2c) are disposed on the upper surface of the first dielectric layer (11), and the The spiral inductor portion (12c) is disposed between the first antenna portion (12a) and the second antenna portion (12b), and the first antenna portion (12a) faces the spiral inductor portion (12c) The end surface extends downwardly through the first dielectric layer (11) to form the first vertical communication portion (12d), and the spiral inductor portion (12c) is connected to the lower end of the first antenna portion (12a) The second vertical communication portion (12e) is formed through the first dielectric layer (11), and a horizontal communication portion (12f) is disposed on a lower surface of the first dielectric layer (11), and the horizontal communication portion (12f) The two ends are respectively connected to the first vertical communication portion (2d) and the second vertical communication portion (12e). The antenna element (1) based on the aforementioned microstrip antenna structure of the present invention and the feed-in-feed-out element (2) used in combination 'the two-dimensional size parameter definition of each element includes L, W, Lg, Wg, Lh, Wh, Lc , Wc, Ts, Ds and Ls, can use the computer simulation or numerical simulation software of the microstrip antenna to find the optimized two-dimensional size parameters at the required operating frequency. Furthermore, the relative positions between the first conductor pattern (12), the hollow portion (22a) of the second conductor pattern (22), and the third conductor pattern (23) are also parameters that need to be adjusted according to the present invention. The two-dimensional size parameter adjustment just described, wherein the impedance of the hollow portion (22a) can be adjusted to obtain better impedance matching: the antenna element (1) is matched with a feed-in component (2). It can be connected to receive or transmit signals. Referring again to the first figure, the feed-in and feed-out component (7) is composed of a second dielectric layer (9), a second conductor pattern (22) and a third conductor pattern (23). . Wherein the second dielectric layer (21) is selected from the group consisting of FR4, Teflon, Duri〇d; bridal fiber, aluminum telluride, ceramic material or other dielectric material, the first wire The pattern (22) and the second conductor pattern (23) respectively lay the conductive lines on the upper and lower surfaces of the second dielectric layer (21), and the second conductor pattern (22) forms a length and a width of Lg and a grounding metal layer of the Wg, and the second wire pattern (22) is partially hollowed out to form a hollow portion (22a) having a length and a width Lh and Wh, respectively, and the third wire pattern (23) is Forming a strip-shaped metal layer having a length and a width of Lc and Wc, respectively, and a dotted line region as shown in the second figure, is a microstrip line corresponding portion (23 a) (this element is shown in the second figure) 'And used to correspond to the first guide L and width W of the antenna element (1). The line pattern (12) forms a light-closing effect of the telecommunication signal, wherein the length deviation of the first wire pattern (10) is divided into materials, and the length and width of the corresponding portion (23a) of the contact line are the same as those of the first wire (10) The effect of the length of the length is again described with reference to the third and fourth figures. The plurality of helical inductance portions (four) of the antenna element have a specific spiral width I spiral outer diameter Ds and a spiral line distance Ls ' and the spiral inductance portions (4) connecting the first antenna portion (10) of the antenna element (1) such that the first antenna portion (4) forms an antenna resonance structure with the antenna portion (12b) and extends a current field of the first antenna portion (12a) Path, while lowering the resonance frequency or shortening the length of the antenna in the aforementioned implementation, it is considered that when the current flows along the extending direction of L and passes through the spiral inductance portions (i2c), the phase increases. More 'clear brain length. If the number of turns of the spiral inductor portion (12e) is increased, the resonance frequency can be further reduced. Referring to the fifth, sixth and seventh figures, the fifth figure shows the internal (four) sensible microstrip antenna structure of the present invention - the frequency _ reflection coefficient of the preferred embodiment is closed; the sixth _ shows the (10) of the present invention The spiral inductor microstrip antenna structure - difficult to close ^ E_ plane fine field flip., and the seventh diagram shows the embedded structure of the present invention, the H-plane radiation field pattern of the preferred embodiment. In order to achieve a simple operation frequency, the antenna element (1) has a minimum return loss of the microstrip antenna with a spiral inductor at a center frequency of about GHz91 GHz, and the center frequency is about 1.91 GHz. The plane radiation field pattern is as shown in the sixth figure, and the plane radiation field pattern is as shown in the seventh figure. The preferred embodiment above is for example only, and is not limited thereto, and the user can Adjusting the dimension parameters L, w, Lg, wg, Lh, wh, uweTS, =, and Ls of the antenna element and the feed-out element to adjust to the appropriate operating frequency and impedance matching to adjust the spiral inductance portion (12e) The resonance frequency is adjusted accordingly. The above description is only for the better implementation of the invention, and is not intended to limit the invention to any type, so that any of the inventions made under the same god Cranes or alterations should still be included in the scope of the invention's protection of the kitchen. [Simplified illustration]
—-圖係顯林發明之微帶天線結構—種較佳 天線元件結合饋入饋出元件之剖視圖； 第二圖係顯示本發明之微帶天線結構之天線元件第一 種較佳實施例的俯視圖； 第三圖係顯示本發明微帶天線結構之局部元件較佳實 施例的俯視目； 1 第四圖係顯示本發明微帶天線結構之電感元件較佳實 施例的俯視圖； 第五圖係顯示本發明之内嵌螺旋電感微帶天線結構一 較佳實施狀解·反射係數關係圖； 第六圖係顯示本發明之内嵌螺旋電感微帶天線結構一 較佳貫把例之E-平面輻射場型圖； 11 1354398 第七圖係顯示本發明之内嵌螺旋電感微帶天線結構一 較佳實施例之H-平面輻射場型圖。 【主要元件符號說明】 天線元件(1) 第一介電層（11) 第一導線圖案(12) 第一天線部(12a) 第二天線部(12b) 螺旋電感部(12c) 第一垂直連通部(12d) 第二垂直連通部(12e) 水平連通部(12f) 饋入饋出元件(2) 第二介電層(21) 第二導線圖案(22) 鏤空部(22a) 第三導線圖案(23) 微帶線對應部(23a) L:圖案長度 W:圖案寬度 Lg :接地長度 Wg :接地寬度 Lh :鏤空長度 Wh :鏤空寬度 12 1354398- Figure 1 shows a microstrip antenna structure of the invention - a preferred antenna element in combination with a feed-in component; and a second diagram showing a first preferred embodiment of the antenna element of the microstrip antenna structure of the present invention The top view shows a top view of a preferred embodiment of a partial component of the microstrip antenna structure of the present invention; and the fourth figure shows a top view of a preferred embodiment of the inductive component of the microstrip antenna structure of the present invention; A preferred embodiment of the solution and reflection coefficient of the embedded spiral inductor microstrip antenna structure of the present invention is shown; and the sixth embodiment shows the E-plane of the preferred embodiment of the embedded spiral inductor microstrip antenna structure of the present invention. Radiation pattern diagram; 11 1354398 The seventh diagram shows the H-plane radiation pattern of a preferred embodiment of the embedded spiral inductor microstrip antenna structure of the present invention. [Description of main component symbols] Antenna component (1) First dielectric layer (11) First conductor pattern (12) First antenna portion (12a) Second antenna portion (12b) Spiral inductor portion (12c) First Vertical communication portion (12d) Second vertical communication portion (12e) Horizontal communication portion (12f) Feeding feeding element (2) Second dielectric layer (21) Second wire pattern (22) Hollow portion (22a) Third Conductor pattern (23) Microstrip line corresponding portion (23a) L: Pattern length W: Pattern width Lg: Ground length Wg: Ground width Lh: Hollow length Wh: Hollow width 12 1354398
Lc :帶狀長度 Wc :帶狀寬度 Ts :螺旋線寬 Ds :螺旋外徑 Ls :螺旋線距Lc : strip length Wc : strip width Ts : spiral width Ds : spiral outer diameter Ls : spiral line distance