1330910 九、發明說明： 【發明所屬之技術領域】 本發明為一種槽孔天線，特別係指一種具有雙頻單槽 孔之天線結構。 【先前技術】 目前設計之槽孔天線大多採用單槽孔形式，其設計皆 為單頻系統，因此僅能操作於單一頻帶下之無線區域網路 系統，遂有許多改善之結構提出，請參㈣1圖，係習知 雙頻槽孔天線之俯視示意圖，包含：一細長狀金屬片1〇、 較長之-字形射l u、—独之—字形槽孔丨2、一饋入 點13、一第一接地點14及一第二接地點15丨其較長之一 字形槽孔11，形成於該細長狀金屬片1G内，用於產生該天 線之第-（低頻）操作模態；較短之—字形槽孔I〗，形成於 該細長狀金屬片1G内，用於產生該天線之第二（高頻）操作 模態；饋八點13位於較長之—字形槽孔U與較短之一字 形槽孔12之間’第—接地點14位於較長之—字形槽孔I} 卜側邊緣⑴’第二接地點位於較短之—字形槽孔π外側 邊緣121。藉由調整兩—字形槽孔之長度，得到適當之共振 頻率及所需之頻率比，調整饋人點13、第-接地點14及第 二接地點15位置’得到良好之阻抗匹配，經此設計出2.4 =5. 2GHz雙頻天線m線必須具備兩種不同尺寸之一 字形槽孔’結構複雜導致製程繁複，且其系統產生之雙頻 頻寬範圍亦有所限制。 ή參閱第2圖’為另—習知雙頻槽孔天線之立體圖， 6 1330910 該雙頻槽孔天線2主要係以一導體20構成，其導體設有兩 個不同長度之第一狹槽21及第二狹槽22,藉由在饋入點 23饋入訊號時，在第一狹槽處21形成第—共振頻率並產生 收發訊號，當以另一訊號饋入時，則可耦合在第二狹槽Μ 處形成共振並產生另一收發訊號，利用兩組開槽之組合， 達成雙頻共振效果’從而收發兩種不同頻率。然而1導體 20設置之狹槽間必須互相呈特定要求之角度始能產生較佳 共振頻率，增加產品製造難度，且其無法確實達成寬頻之 效果。 有璧·於習知槽孔天線技術之不足，相關研究者皆積極 針對簡化槽孔配置結構複雜度，同時兼具多種操作頻帶， 並提供較佳頻率比及阻抗頻寬之問題改善。 【發明内容】 本發明之目的係提供一種槽孔天線，利用第一導體、 第二導體、饋入線及接地部組成簡易之雙頻單槽天線結 構，第一導體透過第二導體中的饋入導體激發產生第一共 振模態，並利用饋入導體自身產生第二共振模態，改善習 知單一槽孔僅能產生單一操作頻率之缺失。 本發明之另一目的係提供一種槽孔天線，將第一導體 侧邊設置缺口，經由該缺口、第二導體中的匹配導體以及 饋入線與饋入導體所相連之饋入點用以調整第—及第二共 振模態之阻抗匹配，進而提高天線操作頻寬。 本發明之又一目的係提供一種槽孔天線，於第一導體 側邊延伸設置一延伸導體，利用延伸導體加以調整槽孔天 7 線系統之阻抗頻寬， 題。 避免產生習知槽孔天線頻寬不足之問 :達成上述目的，本發明第—實施例係為—種槽礼天 置包含：―第—導體、—第二導體、-饋入線及 4，該第-導體包含—槽孔而略成c型結構，包括 i，右側邊、上側邊與下側邊，並於_側邊設置一缺 口；第二導體組設㈣第—導體之槽孔巾並包含長條片狀 之饋入導體及匹§&導體’匹配導體—端部連接於饋入導 體’另-端部延伸至該缺口附近並與第—導體距離一間 隙；饋入線包含—中心導體及_外層導體，其中該中心導 體連接於饋人導體表面形成_饋人點，而其外層導體則連 接於第-導體表面；接地部連接於第—導體側邊。經此說 明配置之天線結構’主要利用第一導體藉由饋入導體之激 發作用而產生第一共振模態，同時利用該槽孔之尺寸而改 變該第-共振模態之中心頻率；並以饋入導體本身產生第 二共振模態，該饋入導體之長度可控制該第二共振模態之 中心頻率，·該第一導體與該匹配導體距離一間隙，故該間 隙可產生-電容效應，而該匹配導體則產生―電感效應， 白可用以調整該第一共振模態之阻抗匹配；另外該饋入點 位置則可絲調整第二共振模態之輸人阻抗；此外，該接 地π可增加該槽孔天線接地面之面積，使槽孔天線之頻寬 增加。上述結構除可簡化天線結構複雜度外，亦能改善習 知單一槽孔天線結構僅能產生單一操作頻率之缺失。 本發明第二實施例之操作原理與第一實施例雷同，其 不同處纽該第-導體側邊㈣設置—延料體，該延伸 導體端#連接於第_導體，另—端部則沿遠離第—導體 =方向延伸，然其末端需轉折彎曲並靠近第-導體，而與 弟-導體產生電容耦合效應，該電容耦合效應可用以調整 該槽孔m統之阻抗，使制孔天線㈣之阻抗變化更 平緩，有效增加概天⑽狀阻抗頻寬，進”加天線 系統頻帶之操作頻寬。1330910 IX. Description of the Invention: [Technical Field] The present invention is a slot antenna, and particularly relates to an antenna structure having a dual-frequency single-slot aperture. [Prior Art] Most of the slot antennas currently designed are in the form of single slots. The design is a single-frequency system. Therefore, it can only operate in a wireless local area network system under a single frequency band. There are many improvements in the structure, please refer to (4) FIG. 1 is a schematic plan view of a conventional dual-frequency slot antenna, comprising: an elongated metal piece 1 〇, a long-shaped-shaped ray, a single-shaped slot 丨 2, a feeding point 13, and a a first grounding point 14 and a second grounding point 15 and a longer one-shaped slot 11 formed in the elongated metal piece 1G for generating a first (low frequency) operating mode of the antenna; a letter-shaped slot I is formed in the elongated metal piece 1G for generating a second (high frequency) operating mode of the antenna; the feeding eight point 13 is located in the longer-shaped slot U and shorter Between the one-letter slots 12, the 'first-ground point 14 is located in the longer-shaped slot I}. The side edge (1)' is located at the outer edge 121 of the shorter-shaped slot π. By adjusting the length of the two-shaped slot, obtaining the appropriate resonant frequency and the required frequency ratio, adjusting the position of the feed point 13, the first-ground point 14 and the second ground point 15 to obtain a good impedance match, Designed 2.4 = 5. 2GHz dual-band antenna m line must have two different sizes of one-shaped slot hole' complex structure leads to complicated process, and the range of dual-frequency bandwidth generated by the system is also limited.第 Refer to Fig. 2' is a perspective view of a conventional dual-frequency slot antenna, 6 1330910. The dual-frequency slot antenna 2 is mainly composed of a conductor 20, and the conductor is provided with two first slots 21 of different lengths. And the second slot 22, when feeding the signal at the feeding point 23, forming a first resonant frequency at the first slot 21 and generating a transceiving signal, and when fed by another signal, may be coupled to the first slot The two slots form a resonance and generate another transceiving signal, and a combination of two sets of slots is used to achieve a dual-frequency resonance effect' to transmit and receive two different frequencies. However, the slots provided by the conductors 20 must be at a specific desired angle to each other to produce a better resonant frequency, which increases the difficulty of manufacturing the product, and it does not reliably achieve the effect of wide frequency. In view of the shortcomings of the well-known slot antenna technology, the researchers have actively improved the structural complexity of the slot configuration, and at the same time have multiple operating frequency bands, and provide better frequency ratio and impedance bandwidth improvement. SUMMARY OF THE INVENTION An object of the present invention is to provide a slot antenna that utilizes a first conductor, a second conductor, a feed line, and a ground portion to form a simple dual-frequency single-slot antenna structure. The first conductor is transmitted through the second conductor. The conductor excitation produces a first resonant mode and the second resonant mode is generated by the feed conductor itself, improving the conventional single slot to only produce a single operating frequency deficiency. Another object of the present invention is to provide a slot antenna in which a side of a first conductor is provided with a notch through which a matching point in the second conductor and a feed point of the feed line and the feed conductor are connected for adjustment - and impedance matching of the second resonant mode, thereby increasing the antenna operating bandwidth. Another object of the present invention is to provide a slot antenna in which an extension conductor is extended on the side of the first conductor, and the extension conductor is used to adjust the impedance bandwidth of the slot 7 antenna system. Avoiding the problem of insufficient bandwidth of the conventional slot antenna: To achieve the above object, the first embodiment of the present invention is a type of slotted, including: a first conductor, a second conductor, a feed line, and 4, The first conductor comprises a slot and is slightly c-shaped, including i, the right side, the upper side and the lower side, and a notch is provided on the side of the _; the second conductor is provided with (4) the slot of the first conductor And comprising a strip-shaped feed conductor and a matching conductor of the conductor & the conductor connected to the feed conductor and extending from the other end to the gap and spaced apart from the first conductor; the feed line includes - The center conductor and the outer conductor, wherein the center conductor is connected to the surface of the feed conductor to form a feed point, and the outer conductor is connected to the surface of the first conductor; the ground portion is connected to the side of the first conductor. The antenna structure configured as described above mainly uses the first conductor to generate a first resonance mode by the excitation of the feed conductor, and changes the center frequency of the first resonance mode by using the size of the slot; The feed conductor itself generates a second resonant mode, the length of the feed conductor can control the center frequency of the second resonant mode, and the first conductor is spaced from the matching conductor by a gap, so the gap can generate a -capacitance effect And the matching conductor generates an “inductance effect, and the white can be used to adjust the impedance matching of the first resonant mode; and the feeding point position can adjust the input impedance of the second resonant mode; in addition, the grounding π The area of the ground plane of the slot antenna can be increased to increase the bandwidth of the slot antenna. In addition to simplifying the complexity of the antenna structure, the above-described structure can also improve the conventional single-slot antenna structure to produce only a single operating frequency. The operating principle of the second embodiment of the present invention is the same as that of the first embodiment, and the different side of the first conductor-side (4) is provided with a lengthening body, the extended conductor end # is connected to the first conductor, and the other end is along the edge. Far from the first conductor = direction extension, but the end needs to be bent and close to the first conductor, and the capacitive coupling effect with the brother-conductor, the capacitive coupling effect can be used to adjust the impedance of the slot m, so that the hole antenna (4) The impedance change is more gradual, effectively increasing the average (10)-shaped impedance bandwidth, and adding the operation bandwidth of the antenna system band.
综合上述，本發明之雙頻單槽孔天線經由第一導體及 饋入導體即可產生兩種共振模態’除改良習知單頻單槽孔 天線結構僅能產生單一操作頻率之缺失，同時改良雙㈣ 槽孔天線必須配置雙槽孔之結構限制，並利用第一導體之 缺口、匹酉己導體與饋人點之設置，從而調整天線至最佳阻 抗匹配，再以延伸導體調整天線系統之阻抗頻寬，使本發 明之雙頻單槽孔天線較雙頻雙魏天線具有更佳之阻抗頻 寬，且其組成結構亦較為簡化。In summary, the dual-frequency single-slot antenna of the present invention can generate two resonant modes via the first conductor and the feed conductor. In addition to the improved single-frequency single-slot antenna structure, only a single operating frequency can be lost. The modified double (four) slot antenna must be configured with the structural limitation of the double slot, and the gap of the first conductor, the conductor and the feed point are used to adjust the antenna to the optimal impedance matching, and then the antenna system is adjusted by the extended conductor. The impedance bandwidth makes the dual-frequency single-slot antenna of the present invention have better impedance bandwidth than the dual-frequency dual-wei antenna, and the composition thereof is also simplified.
為使貝審查人員進一步了解本發明之詳細内容，茲列 舉下列較佳實施例說明如後。 【實施方式】 凊參閱第3圖，為本發明第一實施例之俯視示意圖， 該槽孔天線裝置包含：一第一導體31、一第二導體32、一 饋入線33及一接地部34 ;該第一導體31包含一槽孔311 而略成C型結構，包括左側邊313、右側邊315、上側邊317 與下側邊319，，並於第一導體31之一側邊設置一缺口 312，於本實施例中，該缺口 312設置於左側邊312上且靠 9 1330910 該右侧邊315為鏡射。因此，藉著提高延伸導體35對於整 體槽孔天線系統之阻抗頻寬調整效率，同時亦可透過兩導 體間之間隙產生電性人吟庙 — 玍-I·生耦口效應，猎已增加第—導體31内部 槽孔311之輻射傳導效率。To further clarify the details of the present invention by the reviewers, the following description of the preferred embodiments is set forth below. [Embodiment] FIG. 3 is a top plan view of a first embodiment of the present invention. The slot antenna device includes: a first conductor 31, a second conductor 32, a feed line 33, and a grounding portion 34; The first conductor 31 includes a slot 311 and is slightly C-shaped, including a left side 313, a right side 315, an upper side 317 and a lower side 319, and a notch is provided on one side of the first conductor 31. 312. In this embodiment, the notch 312 is disposed on the left side 312 and the left side 315 is mirrored by 9 1330910. Therefore, by increasing the efficiency of the extension bandwidth of the extension conductor 35 for the overall slot antenna system, it is also possible to generate an electrical human temple through the gap between the two conductors, and the hunting has increased. - Radiation conduction efficiency of the inner slot 311 of the conductor 31.
請參閱第9圖，為本發明第二實施例之返迴損失量測 數據不意圖，其天線操作頻率在返迴損失為_刪之情況 時，頻寬S2約為5.5GHz(操作頻率範圍涵蓋15呢至 7GHz) ’此頻寬應用範圍將可涵蓋Gps : i575 、pa : 1710-1880 MHz>PCS： 1850^1990 MHz^UMTS：1920^2170MHz> WLAN 802. llb/g : 2400〜2500 MHz 以及 UWB : 3170〜7000 MHz 等系統頻寬’顯示經此方式設置之雙頻單槽孔天線結構， 其系統頻帶涵蓋之頻寬範圍已明顯擴大，同時亦具有較佳 之阻抗匹配及操作頻寬，且其組成結構亦較為簡化。Referring to FIG. 9, the return loss measurement data according to the second embodiment of the present invention is not intended, and the antenna operating frequency is about 5.5 GHz when the return loss is _deleted (the operating frequency range covers 15 to 7 GHz) 'This bandwidth application range will cover Gps: i575, pa: 1710-1880 MHz> PCS: 1850^1990 MHz^UMTS: 1920^2170MHz> WLAN 802. llb/g: 2400~2500 MHz and UWB: System bandwidth from 3170 to 7000 MHz' shows the dual-frequency single-slot antenna structure set in this way. The bandwidth of the system frequency band has been significantly expanded, and it also has better impedance matching and operation bandwidth. Its composition is also simplified.
凊參閱第10圖，為本發明第二實施例應用於攜帶式電 腦3之俯視示意圖，該槽孔天線結構係貼覆於攜帶式電腦3 之底板37邊緣，且接地部34亦貼覆於底板37表面，藉以 將接地訊號傳遞至底板37，由於本發明之雙頻單槽孔天線 經由第一導體31及第二導體32即可產生兩種共振模態， 因此不須另行設置雙槽孔結構，大幅降低天線配置尺寸， 增加天線設置靈活度，使其能廣泛整合於各種電子產品裝 置中。 本發明已符合專利要件，實際具有新穎性、進步性與 產業應用價值之特點，然其實施例並非用以侷限本發明之 範圍’任何熟悉此項技藝者所作之各種更動與潤飾，在不 13 1330910 脫離本發明之精神和定義下，均在本發明權利範圍内。 【圖式簡單說明】 第1圖為習知雙頻槽孔天線之俯視示意圖。 第2圖為另一習知雙頻槽孔天線之立體圖。 第3圖為本發明第一實施例之俯視示意圖。 第4圖為本發明第一實施例之缺口變化實施態樣示意圖。 第5圖為本發明第一實施例之缺口另一變化實施態樣示意 圖。 第6圖為本發明第一實施例之返迴損失量測數據示意圖。 第7圖為本發明第二實施例之俯視示意圖。 第8圖為本發明第二實施例之延伸導體變化實施態樣示意 圖。 第9圖為本發明第二實施例之返迴損失量測數據示意圖。 第10圖為本發明第二實施例應用於攜帶式電腦之俯視示意 圖。 【主要元件符號說明】 11 _較長之一字形槽孔 12 —較短之一字形槽孔 13 —饋入點 15 —第二接地點 20—導體 22—第二狹槽 10—細長狀金屬片 111 一外側邊緣 121 —外側邊緣 14 一第—接地點 2—雙頻開槽式天線 21 —第一狹槽 23 —饋入點 14FIG. 10 is a top plan view of a portable computer 3 according to a second embodiment of the present invention. The slot antenna structure is attached to the edge of the bottom plate 37 of the portable computer 3, and the grounding portion 34 is also attached to the bottom plate. The surface of the 37 is used to transmit the ground signal to the bottom plate 37. Since the dual-frequency single-slot antenna of the present invention can generate two resonant modes via the first conductor 31 and the second conductor 32, there is no need to separately provide a dual-slot structure. The antenna configuration size is greatly reduced, and the flexibility of the antenna setting is increased, so that it can be widely integrated into various electronic device devices. The invention has met the requirements of the patent, and has the characteristics of novelty, advancement and industrial application value. However, the embodiments are not intended to limit the scope of the invention. Any of the various changes and retouchings made by those skilled in the art are not 1330910 It is within the scope of the invention to depart from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic plan view of a conventional dual-frequency slot antenna. Figure 2 is a perspective view of another conventional dual frequency slot antenna. Figure 3 is a top plan view of the first embodiment of the present invention. Fig. 4 is a schematic view showing the embodiment of the notch variation of the first embodiment of the present invention. Fig. 5 is a schematic view showing another variation of the notch according to the first embodiment of the present invention. Figure 6 is a schematic diagram of the return loss measurement data of the first embodiment of the present invention. Figure 7 is a top plan view of a second embodiment of the present invention. Fig. 8 is a schematic view showing a variation of the extension conductor according to the second embodiment of the present invention. Figure 9 is a schematic diagram of the return loss measurement data of the second embodiment of the present invention. Figure 10 is a top plan view showing a second embodiment of the present invention applied to a portable computer. [Main component symbol description] 11 _ longer one-shaped slot 12 - shorter one-shaped slot 13 - feed point 15 - second ground point 20 - conductor 22 - second slot 10 - elongated metal piece 111 an outer edge 121 - an outer edge 14 a first - ground point 2 - a dual frequency slotted antenna 21 - a first slot 23 - a feed point 14