TWI584527B - Antenna structure - Google Patents
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- TWI584527B TWI584527B TW102140035A TW102140035A TWI584527B TW I584527 B TWI584527 B TW I584527B TW 102140035 A TW102140035 A TW 102140035A TW 102140035 A TW102140035 A TW 102140035A TW I584527 B TWI584527 B TW I584527B
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Description
本發明係關於一種天線結構，特別係關於一種可達成平面全向性輻射之天線結構。 The present invention relates to an antenna structure, and more particularly to an antenna structure that achieves planar omnidirectional radiation.
在貨運物流業中，常會使用無線感測裝置及其節點天線來進行定位。然而，在貨櫃內有眾多物體鄰近排列之情況下，往往會發生天線輻射波受到物體阻擋之問題。徜若貨櫃箱子內裝有高損耗介質之物品，則更將導致天線電磁波於穿透高損耗介質時發生嚴重信號衰減。另一方面，由於貨櫃之金屬壁面會反射電磁波，天線信號亦有可能因多重路徑反射而發生信號衰落(Fading)之現象。以上皆是貨運物流業中降低天線通訊品質之重要原因，亟待天線設計者加以克服。 In the freight logistics industry, wireless sensing devices and their node antennas are often used for positioning. However, in the case where there are many objects in the container adjacent to each other, the problem that the antenna radiation wave is blocked by the object often occurs.徜If the container box contains high-loss media, it will cause serious signal attenuation when the antenna electromagnetic wave penetrates the high-loss medium. On the other hand, since the metal wall of the container reflects electromagnetic waves, the antenna signal may also be subject to signal fading due to multiple path reflections. All of the above are important reasons for reducing the communication quality of antennas in the freight logistics industry, which is urgently needed to be overcome by antenna designers.
為了解決先前技術之問題，本發明提供一種小尺寸及平面全向性輻射之天線結構。在較佳實施例中，該天線結構可包括：一接地面；一輻射面，設置於該接地面之上方，其中該輻射面係大致平行於該接地面；一饋入部，其中一信號源係經由該饋入部耦接至該輻射面上之一饋入點；一第一短路部，其中該輻射面上之一第一短路點係經由該第一短路部耦接至該接地面；以及一第二短路部，其中該輻射面上之一第二短路 點係經由該第二短路部耦接至該接地面；其中該饋入部、該第一短路部，以及該第二短路部皆設置於該輻射面和該接地面之間。 In order to solve the problems of the prior art, the present invention provides an antenna structure of small size and planar omnidirectional radiation. In a preferred embodiment, the antenna structure may include: a ground plane; a radiating surface disposed above the ground plane, wherein the radiating surface is substantially parallel to the ground plane; a feed portion, wherein a signal source The first short-circuiting portion is coupled to the grounding surface via the first short-circuiting portion; and a first short-circuiting point is coupled to the grounding surface via the first short-circuiting portion; a second short circuit portion, wherein the one of the radiating surfaces is second shorted The point is coupled to the ground plane via the second shorting portion; wherein the feeding portion, the first shorting portion, and the second shorting portion are disposed between the radiating surface and the grounding surface.
100、200‧‧‧天線結構 100, 200‧‧‧ antenna structure
110、210‧‧‧接地面 110, 210‧‧‧ ground plane
120、220‧‧‧輻射面 120, 220‧‧‧ radiation surface
130、230‧‧‧饋入部 130, 230‧‧ ‧Feeding Department
131、231‧‧‧饋入點 131, 231‧‧‧Feeding points
140、240‧‧‧第一短路部 140, 240‧‧‧ first short circuit
141、241‧‧‧第一短路點 141, 241‧‧‧ first short circuit point
150、250‧‧‧第二短路部 150, 250‧‧‧ second short circuit
151、251‧‧‧第二短路點 151, 251‧‧‧ second short circuit point
190‧‧‧信號源 190‧‧‧Signal source
CC1、CC2‧‧‧曲線 CC1, CC2‧‧‧ Curve
D1、D2、H1‧‧‧間距 D1, D2, H1‧‧‧ spacing
FB1‧‧‧操作頻帶 FB1‧‧‧ operating band
L1‧‧‧長度 L1‧‧‧ length
W1‧‧‧寬度 W1‧‧‧Width
X‧‧‧X軸 X‧‧‧X axis
Y‧‧‧Y軸 Y‧‧‧Y axis
Z‧‧‧Z軸 Z‧‧‧Z axis
第1A圖係顯示根據本發明一實施例所述之天線結構之俯視圖。 1A is a plan view showing an antenna structure according to an embodiment of the present invention.
第1B圖係顯示根據本發明一實施例所述之天線結構之側視圖。 Fig. 1B is a side view showing the structure of an antenna according to an embodiment of the present invention.
第2A圖係顯示根據本發明一實施例所述之天線結構之俯視圖。 2A is a plan view showing an antenna structure according to an embodiment of the present invention.
第2B圖係顯示根據本發明一實施例所述之天線結構之側視圖。 2B is a side view showing the structure of an antenna according to an embodiment of the present invention.
第3圖係顯示根據本發明一實施例所述之天線結構之返回損失圖。 Figure 3 is a graph showing the return loss of an antenna structure in accordance with an embodiment of the present invention.
第4A圖係顯示根據本發明一實施例所述之天線結構於第一平面上之輻射場型圖。 4A is a radiation pattern diagram showing an antenna structure on a first plane according to an embodiment of the invention.
第4B圖係顯示根據本發明一實施例所述之天線結構於第二平面上之輻射場型圖。 Figure 4B is a diagram showing the radiation pattern of the antenna structure on the second plane in accordance with an embodiment of the present invention.
第4C圖係顯示根據本發明一實施例所述之天線結構於第三平面上之輻射場型圖。 Figure 4C is a diagram showing the radiation pattern of the antenna structure on the third plane according to an embodiment of the invention.
第5圖係顯示根據本發明一實施例所述之天線結構之天線增益圖。以及第6圖係顯示根據本發明一實施例所述之天線結構之天線 效率圖。 Figure 5 is a diagram showing an antenna gain diagram of an antenna structure according to an embodiment of the invention. And FIG. 6 shows an antenna structure of an antenna structure according to an embodiment of the invention. Efficiency map.
為讓本發明之目的、特徵和優點能更明顯易懂，下文特舉出本發明之具體實施例，並配合所附圖式，作詳細說明如下。 In order to make the objects, features and advantages of the present invention more comprehensible, the specific embodiments of the invention are set forth in the accompanying drawings.
第1A圖係顯示根據本發明一實施例所述之天線結構100之俯視圖。第1B圖係顯示根據本發明一實施例所述之天線結構100之側視圖。天線結構100可以應用於貨運物流業之箱體上。請一併參考第1A、1B圖，天線結構100包括：一接地面110、一輻射面120、一饋入部130、一第一短路部140，以及一第二短路部150。天線結構100之前述元件皆可用導體或金屬材料製成，例如：銅、銀、鋁、鐵，或是其合金。接地面110可以是獨立之一金屬板，或是貼附於一印刷電路板(Printed Circuit Board，PCB)之一金屬平面。該印刷電路板更可用於承載各種電子零件，例如：一處理器(Processor)、一放大器(Amplifier)、一電阻器(Resistor)、一電容器(Capacitor)，或是一電感器(Inductor)。輻射面120可以是獨立之另一金屬板，或是貼附於一介質基板(Dielectric Substrate)之另一金屬平面。例如，該介質基板可以是一FR4(Flame Retardant 4)基板。輻射面120係與接地面110分離，並設置於接地面110之上方。輻射面120係大致平行於接地面110。接地面110之面積通常遠大於輻射面120之面積。舉例來說，輻射面120可於接地面110上具有一垂直投影，而該垂直投影可以完全位於接地面110之內。輻射面120和接地面110之間隙可填充入任意材料，例如：空氣， 或各種不同介質。 1A is a plan view showing an antenna structure 100 in accordance with an embodiment of the present invention. 1B is a side elevational view of an antenna structure 100 in accordance with an embodiment of the present invention. The antenna structure 100 can be applied to a cabinet of the freight logistics industry. Referring to FIG. 1A and FIG. 1B together, the antenna structure 100 includes a ground plane 110, a radiating surface 120, a feeding portion 130, a first short-circuit portion 140, and a second short-circuit portion 150. The aforementioned components of the antenna structure 100 may be made of a conductor or a metal material such as copper, silver, aluminum, iron, or an alloy thereof. The ground plane 110 can be a separate metal plate or attached to a metal plane of a Printed Circuit Board (PCB). The printed circuit board can be used to carry various electronic components, such as a processor, an amplifier, a resistor, a capacitor, or an inductor. The radiating surface 120 can be another independent metal plate or another metal plane attached to a dielectric substrate. For example, the dielectric substrate can be a FR4 (Flame Retardant 4) substrate. The radiating surface 120 is separated from the ground plane 110 and disposed above the ground plane 110. The radiating surface 120 is substantially parallel to the ground plane 110. The area of the ground plane 110 is typically much larger than the area of the radiating surface 120. For example, the radiating surface 120 can have a vertical projection on the ground plane 110, and the vertical projection can be completely within the ground plane 110. The gap between the radiating surface 120 and the ground plane 110 can be filled with any material, such as air, Or a variety of different media.
饋入部130、第一短路部140，以及第二短路部150皆設置於輻射面120和接地面110之間。在一些實施例中，饋入部130、第一短路部140，以及第二短路部150可以分別大致為一圓柱體或是一角柱體。在一些實施例中，饋入部130、第一短路部140，以及第二短路部150係形成於接地面110之一表面上，並用於支撐輻射面120，以增加輻射面120之穩固度。亦即，懸浮之輻射面120可藉由饋入部130、第一短路部140，以及第二短路部150作有效地固定。一信號源190係經由饋入部130耦接至輻射面120上之一饋入點131。信號源190可以是一射頻(Radio Frequency)模組，並可用於激發天線結構100。在一些實施例中，輻射面120大致為一正方形，而饋入點131係位於輻射面120之正中央。在其他實施例中，輻射面120亦可大致為一矩形、一圓形，或是一正三角形，而饋入點131亦可大致位於輻射面120之正中央或形心上。輻射面120上之一第一短路點141係經由第一短路部140耦接至接地面110。相似地，輻射面120上之一第二短路點151亦經由第二短路部150耦接至接地面110。饋入點131可以大致介於第一短路點141和第二短路點151之間。在一些實施例中，第一短路點141、饋入點131，以及第二短路點151係大致排列成一直線。例如，該直線可以平行於輻射面120之一邊緣，或是可以在輻射面120上沿著任意方向作延伸。在一些實施例中，饋入點131與第一短路點141之間距D1係大致等於饋入點131與第二短路點151之間距D2。在其他實施例中，間距D1亦可大於或是小於間距D2。 The feeding portion 130, the first short-circuit portion 140, and the second short-circuit portion 150 are both disposed between the radiating surface 120 and the ground plane 110. In some embodiments, the feeding portion 130, the first shorting portion 140, and the second shorting portion 150 may each be substantially a cylinder or a corner cylinder. In some embodiments, the feed portion 130, the first short circuit portion 140, and the second short circuit portion 150 are formed on one surface of the ground plane 110 and are used to support the radiating surface 120 to increase the stability of the radiating surface 120. That is, the suspended radiating surface 120 can be effectively fixed by the feeding portion 130, the first short-circuit portion 140, and the second short-circuit portion 150. A signal source 190 is coupled to one of the feed points 131 on the radiating surface 120 via the feed portion 130. Signal source 190 can be a radio frequency (Radio Frequency) module and can be used to excite antenna structure 100. In some embodiments, the radiating surface 120 is generally a square and the feed point 131 is located in the center of the radiating surface 120. In other embodiments, the radiating surface 120 can also be substantially rectangular, circular, or an equilateral triangle, and the feed point 131 can also be located substantially at the center or centroid of the radiating surface 120. One of the first short-circuit points 141 on the radiating surface 120 is coupled to the ground plane 110 via the first short-circuit portion 140. Similarly, one of the second shorting points 151 on the radiating surface 120 is also coupled to the ground plane 110 via the second shorting portion 150. The feed point 131 may be substantially between the first short circuit point 141 and the second short circuit point 151. In some embodiments, the first short circuit point 141, the feed point 131, and the second short circuit point 151 are substantially aligned in a straight line. For example, the line may be parallel to one of the edges of the radiating surface 120 or may extend in any direction on the radiating surface 120. In some embodiments, the distance D1 between the feed point 131 and the first short circuit point 141 is substantially equal to the distance D2 between the feed point 131 and the second short circuit point 151. In other embodiments, the spacing D1 may also be greater or less than the spacing D2.
第2A圖係顯示根據本發明一實施例所述之天線結構200之俯視圖。第2B圖係顯示根據本發明一實施例所述之天線結構200之側視圖。請一併參考第2A、2B圖，天線結構200包括：一接地面210、一輻射面220、一饋入部230、一第一短路部240，以及一第二短路部250。第2A、2B圖大致與第1A、1B圖相似，而兩者之差異僅如下列所述。在天線結構200中，接地面210為一不規則形，而輻射面220係鄰近於接地面210之一邊緣。第一短路點241、饋入點231，以及第二短路點251仍係大致排列成一直線，但該直線係大致對齊輻射面220之一對角線。第2A、2B圖所作之調整係為使天線結構200易於與其週邊元件作整合。舉例來說，在輻射面220朝向接地面210之該邊緣移動之後，接地面210之其餘淨空部份更可用於容納各種電子零件，如一電池與一處理晶片。必須了解的是，第2A、2B圖之天線結構200之其餘特徵皆與第1A、1B圖之天線結構100相似，故此二實施例均可達成相似之操作效果。 2A is a top plan view of an antenna structure 200 in accordance with an embodiment of the present invention. 2B is a side view showing an antenna structure 200 in accordance with an embodiment of the present invention. Referring to FIG. 2A and FIG. 2B together, the antenna structure 200 includes a ground plane 210, a radiating surface 220, a feeding portion 230, a first short-circuit portion 240, and a second short-circuit portion 250. Figures 2A and 2B are roughly similar to Figures 1A and 1B, and the differences between the two are as follows. In the antenna structure 200, the ground plane 210 is an irregular shape, and the radiating surface 220 is adjacent to one edge of the ground plane 210. The first shorting point 241, the feeding point 231, and the second shorting point 251 are still substantially aligned in a straight line, but the straight line is substantially aligned with one of the diagonal faces of the radiating surface 220. The adjustments made in Figures 2A and 2B are such that the antenna structure 200 is easily integrated with its peripheral components. For example, after the radiating surface 220 moves toward the edge of the ground plane 210, the remaining headroom of the ground plane 210 can be used to accommodate various electronic components, such as a battery and a processing wafer. It should be understood that the remaining features of the antenna structure 200 of FIGS. 2A and 2B are similar to those of the antenna structure 100 of FIGS. 1A and 1B. Therefore, the second embodiment can achieve similar operational effects.
在一些實施例中，天線結構200之元件尺寸可如下列所述。接地面210與輻射面220之間距H1約介於0.5mm至10mm之間，且較佳約為2mm。輻射面220之長度L1約介於20mm至40mm之間，且較佳約為29mm。輻射面220之寬度W1約介於20mm至40mm之間，且較佳約為29mm。饋入點231與第一短路點241之間距D1約介於1mm至10mm之間，且較佳約為5.5mm。饋入點231與第二短路點251之間距D2約介於1mm至10mm之間，且較佳約為5.5mm。必須注意的是，前述之元件尺寸亦可套用至第1A、1B圖之天線結構100。在設計原理方面，天線結構200 之操作頻帶可藉由改變長度L1和寬度W1來進行調整。舉例來說，當長度L1和寬度W1增加時，天線結構200之操作頻帶將會往低頻移動；而當長度L1和寬度W1減少時，天線結構200之操作頻帶將會往高頻移動。另外，天線結構200之阻抗匹配可藉由改變間距D1、D2來進行調整。舉例來說，當間距D1、D2增加時，天線結構200之操作頻帶將會往高頻移動；而當間距D1、D2減少時，天線結構200之操作頻帶將會往低頻移動。天線設計者可適當地調整前述之元件尺寸，以取得各種所需之操作頻帶。 In some embodiments, the component dimensions of the antenna structure 200 can be as follows. The distance H1 between the ground plane 210 and the radiating surface 220 is between about 0.5 mm and 10 mm, and preferably about 2 mm. The length L1 of the radiating surface 220 is between about 20 mm and 40 mm, and preferably about 29 mm. The width W1 of the radiating surface 220 is between about 20 mm and 40 mm, and preferably about 29 mm. The distance D1 between the feed point 231 and the first short circuit point 241 is between about 1 mm and 10 mm, and preferably about 5.5 mm. The distance D2 between the feed point 231 and the second short circuit point 251 is between about 1 mm and 10 mm, and preferably about 5.5 mm. It must be noted that the aforementioned component sizes can also be applied to the antenna structure 100 of FIGS. 1A and 1B. In terms of design principles, the antenna structure 200 The operating band can be adjusted by changing the length L1 and the width W1. For example, as length L1 and width W1 increase, the operating band of antenna structure 200 will move to low frequencies; and as length L1 and width W1 decrease, the operating band of antenna structure 200 will move to high frequencies. In addition, the impedance matching of the antenna structure 200 can be adjusted by changing the pitches D1, D2. For example, as the spacings D1, D2 increase, the operating band of the antenna structure 200 will move to high frequencies; and as the spacings D1, D2 decrease, the operating band of the antenna structure 200 will move to low frequencies. The antenna designer can appropriately adjust the aforementioned component sizes to achieve various desired operating frequency bands.
第3圖係顯示根據本發明一實施例所述之天線結構200之返回損失(Return Loss)圖，其中橫軸代表操作頻率(MHz)，而縱軸代表返回損失(dB)。根據第3圖之量測結果，天線結構200可激發產生至少一操作頻帶FB1。在一些實施例中，操作頻帶FB1約介於2400MHz至2490MHz之間。因此，本發明之天線結構200至少可用於涵蓋一藍牙(Bluetooth)通訊頻帶(其約介於2420MHz至2485MHz之間)。 Figure 3 is a graph showing the Return Loss of the antenna structure 200 in accordance with an embodiment of the present invention, wherein the horizontal axis represents the operating frequency (MHz) and the vertical axis represents the return loss (dB). According to the measurement results of FIG. 3, the antenna structure 200 can excite at least one operating frequency band FB1. In some embodiments, the operating band FB1 is between approximately 2400 MHz and 2490 MHz. Thus, the antenna structure 200 of the present invention can be used at least to cover a Bluetooth communication band (which is between about 2420 MHz and 2485 MHz).
第4A圖係顯示根據本發明一實施例所述之天線結構200於XY平面上之輻射場型圖。第4B圖係顯示根據本發明一實施例所述之天線結構200於XZ平面上之輻射場型圖。第4C圖係顯示根據本發明一實施例所述之天線結構200於YZ平面上之輻射場型圖。在第4A、4B、4C圖中，曲線CC1代表天線結構200之同極化增益(Co-polarization Gain)，而曲線CC2代表天線結構200之交叉極化增益(Cross-polarization Gain)。請一併參考第2、4A、4B、4C圖，以上圖示都具有相對應之座標軸。當天線 結構200被激發時，天線結構200將產生幾乎全向性之輻射場型。必須注意的是，天線結構200特別在側邊方向之具有較大之天線增益(此處以正Z軸為上方，而X軸、Y軸為側邊方向)，換言之，天線結構200可達成平面全向性輻射。在此設計下，即使有一些物體放置於天線結構200附近，天線結構200之輻射場型亦不容易被完全遮蔽住，有助於其維持良好通訊品質。 Figure 4A is a diagram showing the radiation pattern of the antenna structure 200 on the XY plane according to an embodiment of the invention. Figure 4B is a diagram showing the radiation pattern of the antenna structure 200 on the XZ plane in accordance with an embodiment of the present invention. Figure 4C is a diagram showing the radiation pattern of the antenna structure 200 in the YZ plane according to an embodiment of the invention. In FIGS. 4A, 4B, and 4C, the curve CC1 represents the Co-polarization Gain of the antenna structure 200, and the curve CC2 represents the Cross-polarization Gain of the antenna structure 200. Please refer to Figures 2, 4A, 4B, and 4C together. The above illustrations all have corresponding coordinate axes. Antenna When structure 200 is activated, antenna structure 200 will produce an almost omnidirectional radiation pattern. It should be noted that the antenna structure 200 has a large antenna gain especially in the lateral direction (here, the positive Z axis is above, and the X axis and the Y axis are side directions). In other words, the antenna structure 200 can achieve a full plane. Radiation. Under this design, even if some objects are placed near the antenna structure 200, the radiation pattern of the antenna structure 200 is not easily shielded, which helps to maintain good communication quality.
第5圖係顯示根據本發明一實施例所述之天線結構200之天線增益(Antenna Gain)圖。根據第5圖之量測結果，天線結構200於操作頻帶FB1中之天線增益可達1dBi至1.7dBi，高於0dBi，已可符合實際之應用需求。 Figure 5 is a diagram showing an antenna gain (Antenna Gain) of an antenna structure 200 in accordance with an embodiment of the present invention. According to the measurement result of FIG. 5, the antenna gain of the antenna structure 200 in the operating frequency band FB1 can reach 1 dBi to 1.7 dBi, which is higher than 0 dBi, which can meet the practical application requirements.
第6圖係顯示根據本發明一實施例所述之天線結構200之天線效率(Antenna Efficinecy)圖。根據第6圖之量測結果，天線結構200於操作頻帶FB1中之天線效率可達55%至75%，高於50%，已可符合實際之應用需求。 Figure 6 is a diagram showing an antenna efficiency (Antenna Efficinecy) of an antenna structure 200 according to an embodiment of the invention. According to the measurement result of FIG. 6, the antenna structure 200 has an antenna efficiency of 55% to 75% in the operating frequency band FB1, which is higher than 50%, which can meet the practical application requirements.
根據第1-6圖之實施例可知，本發明之天線結構至少具有體積小、高度低、增益高，以及效率高等等優點。當此種天線結構應用於物流貨櫃業時，其可貼附或是嵌入至貨櫃中各個箱子(例如：恆溫箱或是蓄冷箱)之表層中。由於本發明之天線結構具有良好之全向性輻射和較強之側邊(平面)輻射，即使各個箱子彼此鄰近，天線電磁波仍可在箱子夾縫之間輕易地進行傳遞，其信號衰減程度將明顯較傳統設計方式更低。另外，天線結構之饋入部和短路部更可用於連接輻射面以增加整體結構之穩固度，因此在震盪搖晃之環境中，具有此種連接方式之天線結構亦不容易遭受損壞。本發明之天線結構可提供良好 通訊品質及較高耐用度，故其非常適合應用於各種倉儲及貨櫃物流業之管理中。 According to the embodiment of Figures 1-6, the antenna structure of the present invention has at least the advantages of small size, low height, high gain, and high efficiency. When such an antenna structure is used in the logistics container industry, it can be attached or embedded in the surface of each box in the container (for example, an incubator or a cold storage box). Since the antenna structure of the present invention has good omnidirectional radiation and strong side (planar) radiation, even if the boxes are adjacent to each other, the electromagnetic waves of the antenna can be easily transmitted between the cracks of the box, and the signal attenuation degree will be obvious. It is lower than the traditional design. In addition, the feeding portion and the short-circuit portion of the antenna structure can be used to connect the radiating surface to increase the stability of the overall structure. Therefore, in the environment of shaking and shaking, the antenna structure having such a connection manner is not easily damaged. The antenna structure of the present invention can provide good Communication quality and high durability make it ideal for use in the management of various warehousing and container logistics industries.
值得注意的是，以上所述之元件參數、元件形狀，以及頻率範圍皆非為本發明之限制條件。天線設計者可以根據不同需要調整這些設定值。本發明之天線結構並不僅限於第1-6圖所圖示之狀態。本發明可以僅包括第1-6圖之任何一或複數個實施例之任何一或複數項特徵。換言之，並非所有圖示之特徵均須同時實施於本發明之天線結構當中。 It is to be noted that the above-described component parameters, component shapes, and frequency ranges are not limitations of the present invention. The antenna designer can adjust these settings according to different needs. The antenna structure of the present invention is not limited to the state illustrated in Figures 1-6. The present invention may include only any one or more of the features of any one of the Figures 1-6. In other words, not all illustrated features must be simultaneously implemented in the antenna structure of the present invention.
在本說明書以及申請專利範圍中的序數，例如「第一」、「第二」、「第三」等等，彼此之間並沒有順序上的先後關係，其僅用於標示區分兩個具有相同名字之不同元件。 The ordinal numbers in this specification and the scope of the patent application, such as "first", "second", "third", etc., have no sequential relationship with each other, and are only used to indicate that two are identical. Different components of the name.
本發明雖以較佳實施例揭露如上，然其並非用以限定本發明的範圍，任何熟習此項技藝者，在不脫離本發明之精神和範圍內，當可做些許的更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 The present invention has been described above with reference to the preferred embodiments thereof, and is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
100‧‧‧天線結構 100‧‧‧Antenna structure
110‧‧‧接地面 110‧‧‧ ground plane
120‧‧‧輻射面 120‧‧‧radiation surface
130‧‧‧饋入部 130‧‧‧Feeding Department
140‧‧‧第一短路部 140‧‧‧First short circuit
150‧‧‧第二短路部 150‧‧‧Second short circuit
190‧‧‧信號源 190‧‧‧Signal source
H1‧‧‧間距 H1‧‧‧ spacing
X‧‧‧X軸 X‧‧‧X axis
Y‧‧‧Y軸 Y‧‧‧Y axis
Z‧‧‧Z軸 Z‧‧‧Z axis
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102140035A TWI584527B (en) | 2013-11-05 | 2013-11-05 | Antenna structure |
| CN201410021052.7A CN104617375A (en) | 2013-11-05 | 2014-01-16 | Antenna with a shield |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102140035A TWI584527B (en) | 2013-11-05 | 2013-11-05 | Antenna structure |
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| TW201519516A TW201519516A (en) | 2015-05-16 |
| TWI584527B true TWI584527B (en) | 2017-05-21 |
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| TW (1) | TWI584527B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI279031B (en) * | 2005-08-24 | 2007-04-11 | Accton Technology Corp | Dual-band patch antenna |
| TWI350027B (en) * | 2007-12-31 | 2011-10-01 | Htc Corp | Electronic apparatus with hidden antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4780662B2 (en) * | 2006-06-15 | 2011-09-28 | 株式会社ヨコオ | Planar antenna |
| CN102324620B (en) * | 2011-07-15 | 2013-12-04 | 华南理工大学 | Double-frequency dual-polarized antenna capable of working at GPS (Global Position System) and TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI279031B (en) * | 2005-08-24 | 2007-04-11 | Accton Technology Corp | Dual-band patch antenna |
| TWI350027B (en) * | 2007-12-31 | 2011-10-01 | Htc Corp | Electronic apparatus with hidden antenna |
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| CN104617375A (en) | 2015-05-13 |
| TW201519516A (en) | 2015-05-16 |
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