466800 A7 B7 五、發明說明（1) 先前所熟知的單饋入圓極化印刷寬槽孔天線(printed wide slot antenna) ’通常需要在圓形及正方形的寬槽孔中加 入一些微擾的元件以形成圓極化操作。這些微擾元件主要 有截角的正方形金屬片（comer-truncated square patch)、矩形 金屬片、十字形金屬片、以及具有挖入凹槽(n〇tches)的圓形 金屬片等型式。它們主要是用於激發兩個正交 (orthogonal)、具有等振幅及9〇度相位差之近似簡併共振模 態(near-degenerateresonammodes)。然而，上述這些圓極化 寬槽孔天線的δ又3十，其圓極化輻射波的中心操作頻率約在 未植入微擾元件的寬槽孔天線的主共振頻率(fUnda_tal resonant frequency)附近。此一結果表示：印刷槽孔中所激 發的場分佈並未因植入了微擾元件而有顯著的彎延 (meandering)效果。也就是說，設計於某個共振頻率的印刷 槽孔的大小並未因婦元件雜人而有效的減小。因此， 當印刷槽孔天線的製作面積受規格所限時，若槽孔面積不 能有效的縮小，縣作細功率分配f路或微波電路所需 的接地金屬面面積就受到極大的限制。如此將不利於一些 需要將印刷槽孔天線製作於有限面積上的設計應用。一 在本發明中’我們提出了一種創新且可縮小槽孔尺寸 的單;饋入圓極化槽孔天線設計。在圖式i中，印刷槽孔天 線可设計為正方形或圓形’並且餘刻製作於一基底層的上 層的接地面同一平面。同時由槽孔邊緣的金 •，而的中心植入兩條相互垂直的窄金屬微 f，八中一金帶的末端則另违技 本紐尺L金屬锨^此 (請先閱讀背面之注意事項再填寫本頁) 訂 6 6 8 0 0 A7 ---------B7_ 五、發明說明（2) 一設計不但提供了產生圓極化操作的兩垂直共振模態所需 要的微擾要件，同時強烈地彎延槽孔中所激發的場分佈， 使圓極化槽孔天線的共振頻率有效的減少。本發明的微帶 饋入線設計於基底層的下方，沿著槽孔的對角線方向饋 入。此一微帶饋入線分為兩部份，其中在槽孔外部者具有 -般50Ω微帶線的寬度。而伸入槽孔的部份則為一較观 微帶線寬度為寬侧整金屬片(t論g _。加寬的調整金 屬片主要是為增加槽孔與微帶饋入線間的耦合作用 (coupling)，其可使本發明的圓極化操作設計具有良好的阻 抗匹配效果。以下將說明兩個設計實例。 圖式2至赋5為本發明所述之天線具有正方形槽孔 者於實際製作後的量繼果。極化方向設計為左旋圓極 化。圖式2中所示為在不同操作頻率下典型的反射損失 (return loss)實驗量測結果。圖式3中所示為不同操作頻率 下垂射方向(broadside direction)的圓極化波輻射軸比(&χώ1 ratio)的實驗量·果。圖式4中所示為不同操作頻率下垂 射方向(broadside direction)的天線增益細_ 量測結果。圖式5巾所示為圓極織姉場雜diati〇n pattern)的實驗量測結果。由這些實測的結果可知：本發明 所述具有正方形槽孔的圓極化操作槽孔天線，相對於中心 操作頻率1677 MHz的阻抗頻寬(以1〇犯反射損失為標 準）為7.6% (圖式2所示）。而在此一操作頻寬内的圓極 化軸比值皆小於1.3 dB (圖式3所示）’且具有3 4啦的 最大天線增益值以及小於2巧的天線增益變化詈^ ^ 本紙張尺度適財關家標準（CNS) A4規格(210^297^¾)-------- 466800 A7 B7 經濟部中央標準局員工消費合作社印製 五、發明說明（3) 所示）。同時，其輻射場型顯示為一不錯的左旋圓極化輻 射，且為常用的垂向輻射（圖式5所示）。 在此特別提出的是：若以與本發明所述天線具有相同 參數的介質基板以及相同的槽孔尺寸製作一昔知在槽孔的 中央植入一矩形金屬片的單饋入圓極化槽孔天線，朽 化中心操作頻率約為265_(而若以上述介質\板= 孔尺寸製作-槽孔中不加入任何微擾元件的線性極化槽孔 天線，其中心操作頻率約為2700 MHZ)。這些結果顯示， 本發明所述天線的槽孔尺寸若設計為與上述昔知的單饋入 圓極化槽孔天線者相同’可將圓極化操作的中心頻率降低 36% (1677 MHz相對於265〇 ΜΗΖ)。換言之，針對所欲設 計的圓極化中心操作頻率而言，本發明的槽孔尺寸可較^ 知加入矩形金屬4作為微擾元件的圓極化寬槽孔天線^ 孔尺寸縮小約60%。 上述的設計理糾樣可以料具有_槽孔的圓 極化操作槽孔天線。圖式6至目式9為本發騎述且 形槽孔的圓極化操作槽孔天線於實際製作後的量測結果。 =製作關形槽孔直_計為與正方形槽孔的邊長相 4 ’且極化方向亦設計為左旋圓樹匕。在此二例中，若 帶饋入線i巾㈣的方向饋人，則 =:=中所示為在不同操作頻率下典型的反射 抽失實驗罝湖U果。圖式7中所示為不同操 方向的圓極化波輻射轴比的實驗量測結果 8:射 ^同操作解增益的實驗 7^ 及度適用中關家標準（CNsflT^rTrrr—--- . 玉口不 (請先閱讀背面之注意事項再填寫本頁) 袈 訂 線 466800 五、發明說明（4) ίίΙΓ所示為圓極化波輻射場型的實驗量測結果。這些 果與前一鮮相類似，其中相對於中心操作頻i -摔作的阻抗頻寬約為5.3% (圖式6所示）。而在此 =員寬内的圓極化軸比值皆小於2dB(圖式7所示）， ⑽^的最大天線增益值以及小於1®的天線增 錢化圖式8所示）。其輕射場型亦為-不錯的左』 圓極化垂向輻射場型（圖式9所示）。在這些_1果中， ^發現雖賴作頻寬較前述例子為窄，細由概計時 將f形槽孔的直徑設計為與正方形槽孔的邊長相等，使圓 形槽孔的面積小於正方形槽孔的面積。同時在本例中的圓 極化操作頻段較低，使本發明所述具有圓形槽孔的圓極化 訂 槽孔天線比具有正方形槽孔的圓極化槽孔天線更具有縮小 槽孔尺寸的功效。 經濟部中央標準局員工消費合作社印製 综合上述說明，本發明所述的圓極化操作槽孔天線不 但具有不錯的圓極化品質，且相較於昔知的單饋入圓極化 槽孔天線而言’具有大幅縮小槽孔尺寸的效果。再加上其 低剖面(profile)的外觀特性，使其尤適用於需要將印刷槽孔 天線製作於有限面積、有限體積的設計應用上，諸如可作 為名片型射頻辨識卡(RF ID card)的收發天線。因此，其不 但為一具有進步性的新穎設計，且具有高度的產業應用價 值，足符合發明創作之範疇。 本紙張尺度_ t_家鮮(CNS) A4規格（210x297公楚） 466800 A7 經濟部中央標準局員工消費合作杜印製 五、發明說明（5)〔明式說明〕 ⑽相额雖化寬槽孔天 綠之結構圖，其各部份細節分述 (2)為圓形槽孔，⑶Α今麗魅 （）為正方秘孔， 屬接 為金屬接地面，（4)融魏邊緣的金中心的窄金屬微帶，⑶為連接於⑷ 調整:屬:金屬微帶’⑹為具有加寬的 、屬▼的一截式被帶饋入線，⑺為微波介質基板。一 對乍金屬微帶相對於微帶饋人線的位置為右半部時，可得 ^旋圓極化輕射。反之，當其相對的位置為左半部時，可 得右旋圓極化幸畐射。 第^圖為本發明中具有正方形槽孔的圓極化槽孔天線於不 同操作頻率下典型的反射損失(retum 1〇ss)實驗量測結果。 其中/正方形槽孔的長度為40公釐；窄金屬微帶的長度為 15公釐，寬為1公釐；短金屬微帶的長度為5公釐，寬為 1么釐，、加寬的微帶饋入線伸入正方形槽孔的距離為42公 釐，寬為5.9公釐；槽孔外部微帶饋入線的寬度為31公 釐，接地面尺寸為80公釐x 80公釐；基板厚度為ι.6公 釐，相對介電常數為4.4。 第3圖為本發明中具有正方形槽孔的圓極化槽孔天線於不 同頻率下垂射方向(broadside direction)的圓極化波輕射軸 比(axial ratio)的實驗量測結果。天線相關參數如圖2所示。 請466800 A7 B7 V. Description of the invention (1) Previously well-known single-feed circularly polarized printed wide slot antenna (usually need to add some perturbation elements to the round and square wide slot) To form a circularly polarized operation. These perturbation elements mainly come in the form of a comer-truncated square patch, a rectangular metal sheet, a cross-shaped metal sheet, and a round metal sheet with notches. They are mainly used to excite two orthogonal, near-degenerateresonammodes with equal amplitude and 90 degrees phase difference. However, the δ of these circularly polarized wide slot antennas is 30, and the center operating frequency of the circularly polarized radiation wave is about the main resonance frequency (fUnda_tal resonant frequency) of the wide slot antenna without the perturbation element. . This result indicates that the field distribution induced in the printed slot has no significant meandering effect due to the implantation of the perturbation element. In other words, the size of the printed slot designed at a certain resonance frequency has not been effectively reduced due to the miscellaneous components of the female component. Therefore, when the production area of a printed slot antenna is limited by specifications, if the slot area cannot be effectively reduced, the area of the ground metal surface required for fine power distribution f-channel or microwave circuits in the county will be greatly limited. This will be detrimental to some design applications that need to make printed slot antennas on a limited area. -In the present invention, we propose an innovative single slot antenna design that can reduce the slot size. In Scheme i, the printed slot antenna can be designed as a square or a circle 'and is made on the same plane as the ground plane of the upper layer of a base layer at a time. At the same time, two narrow metal micro f perpendicular to each other are implanted in the center of the gold at the edge of the slot, and the end of the gold band in the middle of the eight middle school is another violation of the new ruler L metal 此 ^ (Please read the note on the back first Please fill in this page again.) Order 6 6 8 0 0 A7 --------- B7_ V. Description of the invention (2) A design not only provides the two micro-resonance modes needed to generate circular polarization operation. Disturbance requirements, and meanwhile strongly bend the field distribution excited in the slot, so that the resonant frequency of the circularly polarized slot antenna is effectively reduced. The microstrip feed line of the present invention is designed below the base layer and is fed along the diagonal direction of the slot. This microstrip feed line is divided into two parts, where the outside of the slot has a width of -50Ω microstrip line. The part that extends into the slot is a relatively wide metal strip with a wide microstrip line width (t on g _. The widened adjustment metal sheet is mainly used to increase the coupling between the slot and the microstrip feed line. (coupling), which can make the circular polarization operation design of the present invention have a good impedance matching effect. Two design examples will be described below. Figures 2 to 5 indicate that the antenna according to the present invention has a square slot. The measurement results after production. The polarization direction is designed as left-handed circular polarization. Figure 2 shows the typical measurement results of return loss at different operating frequencies. Figure 3 shows the difference Experiments and results of the circular polarized wave radiation axis ratio in the broadside direction at the operating frequency. Figure 4 shows the antenna gains in the broadside direction at different operating frequencies. _ Measurement results. Figure 5 shows the experimental measurement results of the circular polar weave pattern. From these measured results, it can be known that the circularly polarized slot antenna with a square slot in the present invention has an impedance bandwidth (based on 10 reflection losses as a standard) of 7.67% with respect to the center operating frequency of 1677 MHz (Figure Equation 2). In this operating bandwidth, the circular polarization axis ratios are all less than 1.3 dB (shown in Figure 3) ', and have a maximum antenna gain value of 34, and an antenna gain change less than 2%. ^ ^ This paper size Appropriate Financial Standards (CNS) A4 (210 ^ 297 ^ ¾) -------- 466800 A7 B7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (5, shown in the description of the invention (3)). At the same time, its radiation field pattern shows a good left-handed circularly polarized radiation, and it is a commonly used vertical radiation (shown in Figure 5). It is particularly proposed here that if a dielectric substrate with the same parameters as the antenna of the present invention and the same slot size are used to make a single-feed circularly polarized slot with a rectangular metal sheet implanted in the center of the slot Antenna, the operating frequency of the decay center is about 265_ (and if the above medium \ plate = hole size is made-a linearly polarized slot antenna without any perturbation element in the slot, the center operating frequency is about 2700 MHZ). These results show that if the slot size of the antenna according to the present invention is designed to be the same as the previously known single-feed circularly polarized slot antenna, the center frequency of circular polarization operation can be reduced by 36% (1677 MHz relative to 265OMZ)). In other words, for the desired circular polarization center operating frequency, the slot size of the present invention can be reduced by about 60% compared to the circularly polarized wide slot antenna with rectangular metal 4 as the perturbation element. The above design principle can be used for circularly polarized slot antennas with a slot. Figures 6 to 9 show the measurement results of the circularly polarized slotted slot antennas described in this publication after they are actually manufactured. = Straight-shaped slotted holes are made _ which is 4 ′ to the side length of a square slotted hole, and the direction of polarization is also designed as a left-handed round tree dagger. In these two examples, if the direction of the feed line i is fed, then the typical reflection loss experiments at different operating frequencies are shown in =: =. Figure 7 shows the experimental measurement results of the circular polarized wave radiation axis ratios in different operating directions. 8: The experiment of the same gain of the operation solution. 7 ^ The degree applies to the Zhongguanjia standard (CNsflT ^ rTrrr ----- Yukou (please read the notes on the back before filling this page) 袈 线 466800 V. Description of the invention (4) ίΙΓ shows the experimental measurement results of the circularly polarized wave radiation field type. These results are the same as the previous one. It is similar, in which the impedance bandwidth relative to the center operating frequency i-wrestling is about 5.3% (shown in Figure 6). Here, the values of the circular polarization axis ratios are less than 2dB (Figure 7) (Shown in Figure 8), the maximum antenna gain value for ⑽ ^ and antenna gains less than 1® are shown in Figure 8). Its light field type is also-a good left "circularly polarized vertical radiation field type (shown in Figure 9). Among these results, ^ found that although the bandwidth is narrower than the previous example, the diameter of the f-shaped slot is designed to be equal to the side length of the square slot, so that the area of the circular slot is less than Area of a square slot. At the same time, the circularly polarized operating frequency band in this example is relatively low, so that the circularly polarized slotted antenna with a circular slotted hole according to the present invention has a smaller slot size than the circularly polarized slotted antenna with a square slotted hole. Effect. The Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs printed and integrated the above description. The circularly polarized slot antenna according to the present invention not only has good circularly polarized quality, but also compares with the single-feed circularly polarized slot known in the past. For the antenna, it has the effect of greatly reducing the slot size. Coupled with its low profile appearance characteristics, it is particularly suitable for design applications where printed slot antennas need to be manufactured in a limited area and volume, such as those that can be used as RF ID cards for business cards. Transceiver antenna. Therefore, it is not only a novel and progressive design, but also has a high industrial application value, which fully meets the scope of invention and creation. Size of this paper _ t_ Home Fresh (CNS) A4 size (210x297 Gongchu) 466800 A7 Printed by the consumer cooperation of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) [Explanation] The structure diagram of Kong Tianlv, the details of each part of which are described in detail (2) is a circular slot hole, (3) the modern beauty () is a square secret hole, belongs to the metal ground plane, (4) the gold center on the edge of Rong Wei The narrow metal microstrip is connected to ⑷. Adjustment: genus: metal microstrip '⑹ is a tapered feeding line with a widening and belongs ▼, ▼ is a microwave dielectric substrate. When a pair of metal microstrips are positioned on the right half of the microstrip feeder, a circularly polarized light beam can be obtained. Conversely, when the relative position is the left half, a right-handed circular polarization can be obtained. Figure ^ shows the experimental measurement results of a circularly polarized slot antenna with a square slot in the present invention at different operating frequencies (retum 10ss). Where / the length of the square slot is 40 mm; the length of the narrow metal microstrip is 15 mm and the width is 1 mm; the length of the short metal microstrip is 5 mm and the width is 1 mil. The distance of the microstrip feed line into the square slot is 42mm and the width is 5.9mm; the width of the microstrip feed line outside the slot is 31mm, the ground plane size is 80mm x 80mm; the thickness of the substrate It is ι.6 mm and the relative dielectric constant is 4.4. Fig. 3 is an experimental measurement result of a circularly polarized slot antenna having a square slot in the present invention at different frequencies in the broadside direction of the circularly polarized wave light emission axial ratio. The antenna related parameters are shown in Figure 2. please
I 意 事 1 訂 線 本紐尺度適财關家縣（CNS) A4規格（21gx297公楚） 466800 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明說明（6) 〔圖式說明〕 第4圖為本發明中具有正方形槽孔的圓極化槽孔天線於 3dB軸比頻寬内不同操作頻率於垂射方向的天線增益 (antennagain)的實驗量測結果◦天線相關參數如圖2所示。 第5圖為本發明中具有正方形槽孔的圓極化槽孔天線的圓 極化波輕射場型(radiationpattern)的實驗量測結果，粗線代 表左翻極化分f (LHCP)，細域姑旋脚⑺圓極化分 量。(1)為在1677MHZ於x_z平面的量測結果，⑺為在1677 MHz於y-ζ平面的量測結果。天線相關參數如圖2所示。 第6圖為本發明中具有圓形槽孔的圓極化槽孔天線於不同 操作頻率下典型的反射損失實驗量測結果。其中，圓形槽 孔的直徑為40公釐；窄金屬微帶的長度為18公釐，寬為 1公釐；短金屬微帶的長度為5公釐，寬為i公釐；加寬 的微帶饋人線伸人正方形槪的距離為37綠，寬為5 9 公釐，槽孔外部微帶饋入線的寬度為31公釐；接地面尺 寸為80公釐X 80公釐；基板厚度為16公釐，相對介電 常數為4.4。 第7圖為本發明中具有圓形槽孔的圓極化槽孔天線於不同 頻率下垂射方向的圓極化波輻射軸比的實驗量測結果。天 線相關參數如圖6所示。 本紐尺度適时 B— (21()χ297 —--- '--^-----'裒-----許-----線 •.—..... (請先閱讀背面之注意事項再填寫本頁)_^_„_ 466800 A7 B7 五、發明說明（7) 〔圈式說明〕I Matter 1 Alignment This book is suitable for Guancai County (CNS) A4 size (21gx297 gongchu) 466800 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 5. Description of the invention (6) [Schematic description] Section Fig. 4 is the experimental measurement result of the antenna gain of the circularly polarized slotted antenna with a square slotted hole in the present invention with different operating frequencies in the vertical direction within the 3dB axial ratio bandwidth. Show. FIG. 5 is an experimental measurement result of a circularly polarized light radiation pattern of a circularly polarized slot antenna with a square slot in the present invention. The thick line represents the left turn polarization fraction f (LHCP), and the fine domain Swirling a circularly polarized component. (1) is the measurement result on the x_z plane at 1677 MHz, and ⑺ is the measurement result on the y-ζ plane at 1677 MHz. The antenna related parameters are shown in Figure 2. Figure 6 is a typical reflection loss measurement result of a circularly polarized slot antenna with a circular slot in the present invention at different operating frequencies. Among them, the diameter of the circular slot is 40 mm; the length of the narrow metal microstrip is 18 mm and the width is 1 mm; the length of the short metal microstrip is 5 mm and the width is i mm; The distance of the microstrip feeder line extending into the square is 37 green and the width is 5 9 mm. The width of the microstrip feeder line outside the slot is 31 mm. The ground plane size is 80 mm x 80 mm. The thickness of the substrate It is 16 mm and the relative dielectric constant is 4.4. Fig. 7 is an experimental measurement result of a circularly polarized slot antenna having a circularly slotted hole in the present invention at different frequencies in the direction of vertical polarization of the circularly polarized wave radiation. The antenna-related parameters are shown in Figure 6. The scale of this button is timely B— (21 () χ297 —--- '-^ -----' 裒 ----- Xu ----- line • .—..... (please first Read the notes on the back and fill in this page) _ ^ _ „_ 466800 A7 B7 V. Description of the invention (7) [Circular description]
有圓形槽孔的圓極化槽孔天線於3dB 於垂射方向的天線增益的實驗量 測結果。天線相關參數如圖6所示。 第9圖為本發明中具有圓形槽孔的圓極化槽孔天線的圓極 化波輪射場型的實驗量測結果，粗線代表左旋圓極化分 量’細線代表右旋圓極化分量。（1)為在1620 MHz於χ-ζ 平面的量測結果，（2)為在1620 MHz於y-z平面的量測結 果。天線相關參數如圖6所示。 請 先 閱 讀 背 意 事 項 再 填 寫 本 頁 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS) A4規格（210x297公釐） 經濟部中央標準局員工消費合作社印製 466800 f f /補尤— 五、發明說明（8) 〔圖式簡單說明〕 第1圖為本發明之單饋入圓極化寬槽孔天線之結構圖。 第2圖為本發明天線的反射損失實驗結果。 第3圖為本發明天線的圓極化波軸比的實驗結果。 第4圖為本發明天線的增益實驗結果。 第5圖為本發明天線的圓極化波輻射場型的實驗結果。 第6圖為本發明天線的反射損失實驗結果。 第7圖為本發明天線的圓極化波軸比的實驗結果。 第8圖為本發明天線的增益實驗結果。 第9圖為本發明天線的圓極化波輻射場型的實驗結果。 L--Γ----.——裝-----訂----——線 (請先閱讀背面之注意事項再填寫本頁) 。 , 本紙張尺度適用中國國家標準（CNS) A4規格（210x297公釐）The experimental results of the circularly polarized slot antenna with a circular slot at an antenna gain of 3dB in the vertical direction. The antenna related parameters are shown in Figure 6. FIG. 9 is an experimental measurement result of a circularly polarized wave wheel radiation field type of a circularly polarized slotted antenna with a circular slotted hole in the present invention. A thick line represents a left-handed circular polarization component, and a thin line represents a right-handed circular polarization component. . (1) is the measurement result on the χ-ζ plane at 1620 MHz, and (2) is the measurement result on the y-z plane at 1620 MHz. The antenna related parameters are shown in Figure 6. Please read the disclaimer before filling out this page Printed by the Central Consumers ’Cooperative of the Ministry of Economic Affairs Printed on this paper The size of the paper is applicable to the Chinese National Standard (CNS) A4 (210x297 mm) Printed by the Staff ’s Cooperative of the Central Bureau of Standards of the Ministry of Economics 466800 ff / Supplementary-V. Description of the invention (8) [Simplified description of the drawing] Fig. 1 is a structural diagram of a single-feed circularly polarized wide slot antenna of the present invention. Fig. 2 is a result of reflection loss experiment of the antenna of the present invention. Fig. 3 is an experimental result of the circular polarization wave axis ratio of the antenna of the present invention. FIG. 4 is a result of a gain experiment of the antenna of the present invention. Fig. 5 is an experimental result of a circularly polarized wave radiation pattern of the antenna of the present invention. Fig. 6 is a result of reflection loss experiment of the antenna of the present invention. Fig. 7 is an experimental result of the circular polarization wave axis ratio of the antenna of the present invention. FIG. 8 is a result of a gain experiment of the antenna of the present invention. Fig. 9 is an experimental result of a circularly polarized wave radiation pattern of the antenna of the present invention. L--Γ ----.—— install -------- order -------- line (please read the precautions on the back before filling this page). , This paper size applies to China National Standard (CNS) A4 (210x297 mm)