TWI487193B - Multi-frequency antenna device - Google Patents
Multi-frequency antenna device Download PDFInfo
- Publication number
- TWI487193B TWI487193B TW100137747A TW100137747A TWI487193B TW I487193 B TWI487193 B TW I487193B TW 100137747 A TW100137747 A TW 100137747A TW 100137747 A TW100137747 A TW 100137747A TW I487193 B TWI487193 B TW I487193B
- Authority
- TW
- Taiwan
- Prior art keywords
- antenna
- radiator
- frequency
- slot
- signal
- Prior art date
Links
Description
本發明是有關於一種天線裝置，且特別是有關於一種多頻天線之裝置。The present invention relates to an antenna device, and more particularly to a device for a multi-frequency antenna.
在現代的資訊生活中，藉由不需光纖、電纜的無線通訊器材便能傳輸訊號、即時取得資訊，增加生活上的便利性。隨著技術的演進，各種可攜式無線通訊器材，例如：智慧型手機、筆記型電腦、平板電腦等，由於具備輕巧便利的特性，而成為現代人重要的資訊交流工具。In the modern information life, wireless communication equipment that does not require optical fibers and cables can transmit signals and obtain information in real time, thereby increasing convenience in life. With the evolution of technology, various portable wireless communication devices, such as smart phones, notebook computers, tablet computers, etc., have become an important information exchange tool for modern people due to their light and convenient features.
在無線通訊器材中，用來發射並接收無線電波，來傳遞交換資料訊號之天線，也是通訊器材的必備元件。在可攜式無線通訊器材中，不僅天線要輕薄短小，設計上盡量不佔用機構佈局之空間，以配合可攜式無線通訊器材體積縮小之趨勢，此外隨著無線電資料訊號之傳遞資料增加，天線運作時頻帶的頻寬也要隨之增加。In wireless communication equipment, an antenna for transmitting and receiving radio waves to transmit data signals is also an essential component of communication equipment. In the portable wireless communication equipment, not only the antenna should be light and thin, but also the space of the organization layout is not occupied as much as possible, so as to cope with the trend of the volume reduction of the portable wireless communication equipment, and the transmission data of the radio data signal increases, the antenna The bandwidth of the operating band also increases with the operation.
由於移動通訊產品在無線資料傳輸需求日益增加且需要符合各國家系統的規範，所以在天線的支援上，需要涵蓋更多的操作頻帶及頻寬來符合設計需求。Due to the increasing demand for wireless data transmission in mobile communication products and the need to comply with the specifications of national systems, it is necessary to cover more operating frequency bands and bandwidths to meet the design requirements in antenna support.
因此，一種符合成本考量，並且又具備多個操作頻帶及頻寬的天線是有待研發。Therefore, an antenna that meets cost considerations and has multiple operating bands and bandwidths is yet to be developed.
因此，本發明之目的是在提供一種多頻天線裝置，以解決頻帶及頻寬不夠的問題。Accordingly, it is an object of the present invention to provide a multi-frequency antenna apparatus to solve the problem of insufficient frequency band and bandwidth.
本發明之一態樣是在提供一種多頻天線裝置。此多頻天線裝置包含第一天線、第二天線。第一天線包含一饋入部以及第一接地部。第二天線與第一天線整合，並包含饋入部以及第二接地部。其中饋入部配置於第一接地部與第二接地部之間，且第一天線與第二天線於收發信號時共用饋入部。One aspect of the present invention is to provide a multi-frequency antenna device. The multi-frequency antenna device includes a first antenna and a second antenna. The first antenna includes a feed portion and a first ground portion. The second antenna is integrated with the first antenna and includes a feed portion and a second ground portion. The feeding portion is disposed between the first ground portion and the second ground portion, and the first antenna and the second antenna share the feeding portion when transmitting and receiving signals.
依據本發明一實施例，第一天線更包含第一輻射體、第二輻射體。第一輻射體連接於饋入部以及第一接地部，並用以收發第一無線信號。第二輻射體連接於饋入部，並用以收發第二無線信號。According to an embodiment of the invention, the first antenna further includes a first radiator and a second radiator. The first radiator is connected to the feeding portion and the first ground portion and configured to transmit and receive the first wireless signal. The second radiator is connected to the feeding portion and configured to transmit and receive the second wireless signal.
依據本發明一實施例，第一天線更包含一槽孔，至少由第一輻射體以及第二輻射體所環繞形成，其中槽孔之尺寸與第一無線信號及第二無線信號對應之頻率相關。According to an embodiment of the invention, the first antenna further includes a slot formed by at least the first radiator and the second radiator, wherein the size of the slot corresponds to the frequency of the first wireless signal and the second wireless signal. Related.
依據本發明一實施例，第二天線更包含一輻射體，連接於饋入部以及第二接地部，並用以收發一無線信號。According to an embodiment of the invention, the second antenna further includes a radiator connected to the feeding portion and the second ground portion for transmitting and receiving a wireless signal.
依據本發明一實施例，第二天線更包含一槽孔，至少由輻射體所環繞形成，其中槽孔之尺寸與無線信號對應之頻率相關。According to an embodiment of the invention, the second antenna further includes a slot formed by at least a radiator, wherein the size of the slot is related to a frequency corresponding to the wireless signal.
依據本發明一實施例，饋入部與第一接地部之間距大致上相等於饋入部與第二接地部之間距。According to an embodiment of the invention, the distance between the feeding portion and the first ground portion is substantially equal to the distance between the feeding portion and the second ground portion.
依據本發明一實施例，第一天線更包含第一輻射體以及第二輻射體，第二天線更包含第三輻射體，第一輻射體、第二輻射體和第三輻射體均連接於饋入部，第一輻射體和第三輻射體分別用以收發第一高頻信號和第二高頻信號，第二輻射體用以收發一低頻信號。According to an embodiment of the invention, the first antenna further includes a first radiator and a second radiator, and the second antenna further includes a third radiator, and the first radiator, the second radiator and the third radiator are connected In the feeding portion, the first radiator and the third radiator are respectively configured to send and receive the first high frequency signal and the second high frequency signal, and the second radiator is configured to send and receive a low frequency signal.
依據本發明一實施例，第一天線更包含第一槽孔，至少由第一輻射體以及第二輻射體所環繞形成，其中槽孔之尺寸與第一高頻信號及低頻信號對應之頻率相關。According to an embodiment of the invention, the first antenna further includes a first slot formed by at least the first radiator and the second radiator, wherein the size of the slot corresponds to the frequency of the first high frequency signal and the low frequency signal. Related.
依據本發明一實施例，第二天線更包含一第二槽孔，至少由第三輻射體所環繞形成，其中第二槽孔之尺寸與第二高頻信號對應之頻率相關。According to an embodiment of the invention, the second antenna further includes a second slot formed by at least a third radiator, wherein the size of the second slot is related to a frequency corresponding to the second high frequency signal.
依據本發明一實施例，第一天線係為一平面倒F天線，第二天線係為一環形天線。According to an embodiment of the invention, the first antenna is a planar inverted F antenna, and the second antenna is a loop antenna.
綜合上述，本發明利用一個饋入點及兩個接地部將兩種天線結合，藉由兩個天線之間會互相影響產生加乘的作用，達到較大的頻寬，能夠有良好的天線效率。In summary, the present invention utilizes a feed point and two grounding portions to combine the two antennas, and the two antennas interact with each other to generate a multiplication effect, thereby achieving a larger bandwidth and having good antenna efficiency. .
為了使本發明之敘述更加詳盡與完備，可參照所附之圖式及以下所述各種實施例，圖式中相同之號碼代表相同或相似之元件。另一方面，眾所週知的元件與步驟並未描述於實施例中，以避免對本發明造成不必要的限制。In order to make the description of the present invention more complete and complete, reference is made to the accompanying drawings and the accompanying drawings. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessarily limiting the invention.
為了解決天線操作頻帶與頻寬不足的問題，利用一個饋入點及兩個接地部將兩種天線結合，第一天線架構包含低頻結構和高頻結構，第二天線架構包含一個高頻結構，透過此發明之設計，可以藉由天線的饋入部及兩個接地部位置及尺寸，來優化天線頻寬及與其他元件共存的影響，達到提升天線性能的目的。In order to solve the problem of insufficient operating frequency band and bandwidth of the antenna, two antennas are combined by using one feeding point and two grounding parts. The first antenna structure includes a low frequency structure and a high frequency structure, and the second antenna structure includes a high frequency. According to the design of the invention, the antenna bandwidth and the position and size of the two grounding portions can be used to optimize the antenna bandwidth and the coexistence with other components, thereby improving the performance of the antenna.
請參照第1圖，其係繪示依照本發明之一實施例的一種多頻天線裝置100之示意圖。多頻天線裝置100包含第一天線110、第二天線120。第一天線110包含第一接地部112以及饋入部114。第二天線120與第一天線110整合，並包含饋入部114以及第二接地部122。其中饋入部114配置於第一接地部112與第二接地部122之間，且第一天線110與第二天線120於收發信號時共用饋入部114。藉由結合兩種天線，便可達到增加頻寬的效果，並且藉由使用相同的饋入部，亦不需要多負擔成本。Please refer to FIG. 1 , which is a schematic diagram of a multi-frequency antenna device 100 according to an embodiment of the invention. The multi-frequency antenna device 100 includes a first antenna 110 and a second antenna 120. The first antenna 110 includes a first ground portion 112 and a feed portion 114. The second antenna 120 is integrated with the first antenna 110 and includes a feeding portion 114 and a second ground portion 122. The feeding portion 114 is disposed between the first ground portion 112 and the second ground portion 122, and the first antenna 110 and the second antenna 120 share the feeding portion 114 when transmitting and receiving signals. By combining the two antennas, the effect of increasing the bandwidth can be achieved, and by using the same feed portion, there is no need to bear the cost.
實作上，各個接地部與饋入部距離會影響到多頻天線裝置收發信號的頻率偏移或頻寬變化，而不同天線結構的設計與實際天線的環境相配合，可決定頻率往高頻或低頻偏移，並決定對頻寬的影響。In practice, the distance between each grounding portion and the feeding portion may affect the frequency offset or bandwidth variation of the signal transmitted and received by the multi-frequency antenna device, and the design of different antenna structures cooperates with the environment of the actual antenna to determine the frequency to the high frequency or Low frequency offset and determine the effect on bandwidth.
接著請參照第2A圖及第2B圖，第2A圖係繪示依照本發明之多頻天線裝置100之一實施例之背視圖，第2B圖係繪示第2A圖之多頻天線裝置100之正視圖。依據本發明一實施例，第一天線110更包含第一輻射體116、第二輻射體117。第一輻射體116連接於饋入部114以及第一接地部112，並用以收發第一無線信號。第二輻射體117連接於饋入部114，並用以收發第二無線信號。實作上，第一輻射體116、第二輻射體117可為金屬。而第一無線信號與第二無線信號可對應於不同的頻率，以達到多頻的效果。2A and 2B, FIG. 2A is a rear view of an embodiment of the multi-frequency antenna device 100 according to the present invention, and FIG. 2B is a multi-frequency antenna device 100 of FIG. 2A. Front view. According to an embodiment of the invention, the first antenna 110 further includes a first radiator 116 and a second radiator 117. The first radiator 116 is connected to the feeding portion 114 and the first ground portion 112 and configured to transmit and receive the first wireless signal. The second radiator 117 is connected to the feeding portion 114 and configured to transmit and receive a second wireless signal. In practice, the first radiator 116 and the second radiator 117 may be metal. The first wireless signal and the second wireless signal may correspond to different frequencies to achieve a multi-frequency effect.
依據本發明一實施例，第一天線110更包含槽孔118，至少由第一輻射體116以及第二輻射體117所環繞形成，其中槽孔118之尺寸與第一無線信號及第二無線信號對應之頻率相關，因此，可藉由調整槽孔118之尺寸來影響第一無線信號及第二無線信號所對應之頻率，例如：調整槽孔118的深度(深度係與第一輻射體116垂直的方向)，當在槽孔深度118不夠深時，信號對應較低頻頻率者將會往高頻頻偏，如果深度夠將可以往低頻頻偏，或者是當槽孔間距(間距的方向係指第一輻射體116與第二輻射體117平行的方向)減少使天線佈局面積增加，便可增加頻寬。實作上必須根據空間的大小對第一無線信號及第二無線信號的相互影響來作調整。According to an embodiment of the invention, the first antenna 110 further includes a slot 118 formed by at least the first radiator 116 and the second radiator 117, wherein the slot 118 is sized to be the first wireless signal and the second wireless The frequency corresponding to the signal is related. Therefore, the frequency corresponding to the first wireless signal and the second wireless signal can be affected by adjusting the size of the slot 118, for example, adjusting the depth of the slot 118 (depth system and the first radiator 116) Vertical direction), when the slot depth 118 is not deep enough, the signal corresponding to the lower frequency will be shifted to the high frequency, if the depth is enough, the frequency can be shifted to the low frequency, or when the slot spacing (the direction of the spacing) The decrease in the direction in which the first radiator 116 is parallel to the second radiator 117 reduces the antenna layout area and increases the bandwidth. In practice, the interaction between the first wireless signal and the second wireless signal must be adjusted according to the size of the space.
值得一提的是，在一實施例中，第一天線110更包含槽孔119，至少由第一輻射體116所環繞形成，例如：第一輻射體116繞著槽孔119從饋入部114延伸至第一接地部112。槽孔119之尺寸與第一無線信號及第二無線信號對應之頻率相關，例如：槽孔119越深可以使得第一無線信號及第二無線信號中較低頻者的頻寬越寬。實作上，深度需要配合需求做調整，且若第一天線110為平面倒F天線(PIFA)的話，深度的控制更必須要配合平面倒F天線的基本操作原理，綜合來說槽孔119之佈局面積需要視不同環境狀況做調整。It is worth mentioning that, in an embodiment, the first antenna 110 further includes a slot 119 formed by at least the first radiator 116. For example, the first radiator 116 is wound from the slot 119 from the feeding portion 114. It extends to the first ground portion 112. The size of the slot 119 is related to the frequency corresponding to the first wireless signal and the second wireless signal. For example, the deeper the slot 119, the wider the bandwidth of the lower frequency of the first wireless signal and the second wireless signal. In practice, the depth needs to be adjusted according to the requirements, and if the first antenna 110 is a planar inverted-F antenna (PIFA), the depth control must be matched with the basic operation principle of the planar inverted-F antenna, and the slot 119 is comprehensive. The layout area needs to be adjusted according to different environmental conditions.
依據本發明一實施例，第二天線120更包含第三輻射體124，連接於饋入部114以及第二接地部122，並用以收發一無線信號。According to an embodiment of the invention, the second antenna 120 further includes a third radiator 124 connected to the feeding portion 114 and the second ground portion 122 for transmitting and receiving a wireless signal.
依據本發明一實施例，第二天線更包含槽孔126，至少由第三輻射體124所環繞形成，其中槽孔126之尺寸與無線信號對應之頻率相關，並可藉由調整槽孔126之尺寸來改變無線信號對應之頻率與頻寬，而槽孔126類似於槽孔118與槽孔119，調整的方式與前述相似，故不在此贅述。According to an embodiment of the invention, the second antenna further includes a slot 126 formed by at least the third radiator 124. The size of the slot 126 is related to the frequency corresponding to the wireless signal, and the slot 126 can be adjusted by adjusting the slot 126. The size is used to change the frequency and bandwidth of the wireless signal, and the slot 126 is similar to the slot 118 and the slot 119. The manner of adjustment is similar to the foregoing, and therefore will not be described herein.
依據本發明一實施例，饋入部114與第一接地部112之間距大致上相等於饋入部114與第二接地部122之間距，例如：間距為1mm，間距上大致相等是為了設計上的方便性，而實際間距多大必需與天線佈局以及天線的長度等作配合，如同前述間距可影響收發信號頻率偏移及頻寬的改變，習之技藝者可依實際狀況調整。According to an embodiment of the invention, the distance between the feed portion 114 and the first ground portion 112 is substantially equal to the distance between the feed portion 114 and the second ground portion 122, for example, the pitch is 1 mm, and the pitch is substantially equal for design convenience. Sex, and the actual spacing must match the antenna layout and the length of the antenna, etc., as the spacing can affect the frequency offset and bandwidth of the transceiver signal, and the skilled artisan can adjust according to the actual situation.
另外，饋入部與接地部的間距設計還必須考慮通訊產品的機構問題，由於通訊產品仍有其他元件，例如：麥克風、USB、震盪器，這些元件與天線共同被組成產品時，可能引起屏蔽效應而阻擋輻射，因此設計上必須特別注意。In addition, the design of the spacing between the feed portion and the grounding portion must also consider the mechanical problem of the communication product. Since the communication product still has other components, such as a microphone, a USB, and an oscillator, these components may be combined with the antenna to form a product, which may cause a shielding effect. Blocking radiation, so design must pay special attention.
再者，設計佈局時，必須讓饋入部與接地部盡量靠近，這樣的優點是可以使饋入部與接地部設計在相同印刷電路板上，減少與機構的干涉。Furthermore, when designing the layout, the feed portion and the ground portion must be placed as close as possible. This has the advantage that the feed portion and the ground portion can be designed on the same printed circuit board to reduce interference with the mechanism.
依據本發明一實施例，可整合第一天線110(包含第一輻射體116以及第二輻射體117)與第二天線120(包含第三輻射體124)以形成多頻天線裝置100，在此的第一輻射體116、第二輻射體117和第三輻射體124均連接於饋入部114，第一輻射體116和第三輻射體124分別用以收發第一高頻信號和第二高頻信號，第二輻射體117用以收發一低頻信號。According to an embodiment of the invention, the first antenna 110 (including the first radiator 116 and the second radiator 117) and the second antenna 120 (including the third radiator 124) may be integrated to form the multi-frequency antenna device 100, The first radiator 116, the second radiator 117 and the third radiator 124 are connected to the feeding portion 114, and the first radiator 116 and the third radiator 124 are respectively configured to transmit and receive the first high frequency signal and the second The high frequency signal, the second radiator 117 is used to send and receive a low frequency signal.
實作上，第一高頻信號、第二高頻信號與低頻信號對應之頻率，例如：運用在GSM900的系統上，低頻信號對應之頻率是880 MHz~960 MHz；運用在DCS1800&PCS1900的系統上，第一高頻信號對應之頻率是1710 MHz~1990 MHz；運用在3G WCDMABand1的系統上，第二高頻信號對應之頻率是2110 MHz~2170 MHz。在一實施例中，第一高頻信號與第二高頻信號分別所對應之頻率大於低頻信號對應之頻率，並且第一高頻信號所對應之頻率可小於第二高頻信號所對應之頻率。In practice, the frequency corresponding to the first high frequency signal and the second high frequency signal and the low frequency signal, for example, is applied to a system of GSM900, and the frequency corresponding to the low frequency signal is 880 MHz to 960 MHz; used in the system of DCS1800 & PCS1900, The frequency corresponding to the first high frequency signal is 1710 MHz to 1990 MHz; on the system of 3G WCDMA Band1, the frequency corresponding to the second high frequency signal is 2110 MHz to 2170 MHz. In an embodiment, the frequency corresponding to the first high frequency signal and the second high frequency signal respectively is greater than the frequency corresponding to the low frequency signal, and the frequency corresponding to the first high frequency signal may be less than the frequency corresponding to the second high frequency signal. .
在一實施例中，第一天線110亦可更包含槽孔118，至少由第一輻射體116以及第二輻射體117所環繞形成，例如：第一輻射體116繞著槽孔118從饋入部114延伸至第一接地部112，第二輻射體117繞著槽孔118從饋入部114延伸至第一輻射體116的另一側，如第2A圖所示，其中槽孔118之尺寸與第一高頻信號及低頻信號對應之頻率相關。In an embodiment, the first antenna 110 may further include a slot 118 formed by at least the first radiator 116 and the second radiator 117. For example, the first radiator 116 is fed around the slot 118. The inlet portion 114 extends to the first ground portion 112, and the second radiator 117 extends from the feed portion 114 to the other side of the first radiator 116 around the slot 118, as shown in FIG. 2A, wherein the size of the slot 118 is The first high frequency signal is related to the frequency corresponding to the low frequency signal.
在一實施例中，第二天線120更包含槽孔126，其至少由第三輻射體124所環繞形成，其中槽孔126之尺寸與第二高頻信號對應之頻率相關。例如：第三輻射體124繞著槽孔126從饋入部114延伸至第二接地部124。In an embodiment, the second antenna 120 further includes a slot 126 formed by at least a third radiator 124, wherein the size of the slot 126 is related to a frequency corresponding to the second high frequency signal. For example, the third radiator 124 extends from the feed portion 114 to the second ground portion 124 around the slot 126.
值得注意的是，亦可控制第二天線120使之接收低頻信號，但如此必須調整槽孔126的尺寸，因此在此採用之實施例便可使用低成本達到增加多頻的效果。It should be noted that the second antenna 120 can also be controlled to receive low frequency signals, but the size of the slots 126 must be adjusted. Therefore, the embodiment employed herein can achieve the effect of increasing multi-frequency using low cost.
實作上，槽孔126之尺寸小於槽孔118之尺寸，這是因為槽孔118主要影響兩個信號(第一高頻信號及低頻信號)，而槽孔126主要只影響一個信號(第二高頻信號)，然而若作不同設計的話，則槽孔126相對於槽孔118之尺寸便不在此限。In practice, the size of the slot 126 is smaller than the size of the slot 118 because the slot 118 primarily affects two signals (the first high frequency signal and the low frequency signal), while the slot 126 primarily affects only one signal (second High frequency signal), however, if the design is different, the size of the slot 126 relative to the slot 118 is not limited.
在一實施例中，第一天線110可為一平面倒F天線(PIFA)，第二天線120可為一環形天線(loop antenna)。實作上，第二天線亦可包含具有相同功能之不同形狀的天線。In an embodiment, the first antenna 110 can be a planar inverted-F antenna (PIFA), and the second antenna 120 can be a loop antenna. In practice, the second antenna may also include antennas of different shapes having the same function.
如前面所述，接地部與饋入部距離會影響到天線架構的頻率偏移或頻寬，當第二天線120為一環形天線時，環形天線從饋入部114延伸，並繞著槽孔126而連接至接地部122。在一實施例中，當環形線圈中之槽孔126越大時，槽孔126所影響的信號的頻率就會越往低頻頻偏。實作上，接地部122與饋入部114的間距還與天線佈局相關，習知技藝者可依據實際情況選擇適當的間距。As described above, the distance between the ground portion and the feed portion may affect the frequency offset or bandwidth of the antenna structure. When the second antenna 120 is a loop antenna, the loop antenna extends from the feed portion 114 and surrounds the slot 126. And connected to the ground portion 122. In one embodiment, as the slot 126 in the toroid is larger, the frequency of the signal affected by the slot 126 is more frequently offset from the low frequency. In practice, the spacing between the grounding portion 122 and the feeding portion 114 is also related to the antenna layout, and a person skilled in the art can select an appropriate spacing according to actual conditions.
接著請參考第3圖，其係繪示多頻天線裝置100之一實施例所測試出的電壓駐波比(VSWR)對應於頻率之示意圖。由圖可知，低頻信號對應之頻率在880 MHz～960 MHz，第一高頻信號對應之頻率在1710 MHz～1990 MHz，第二高頻信號對應之頻率在2110 MHz～2170 MHz，藉由將第二高頻信號與第一高頻信號之頻率匹配，便可達到增加頻寬與頻帶的效果。Referring to FIG. 3, it is a schematic diagram showing the voltage standing wave ratio (VSWR) measured by an embodiment of the multi-frequency antenna device 100 corresponding to frequency. As can be seen from the figure, the frequency corresponding to the low frequency signal is between 880 MHz and 960 MHz, the frequency corresponding to the first high frequency signal is between 1710 MHz and 1990 MHz, and the frequency corresponding to the second high frequency signal is between 2110 MHz and 2170 MHz. The frequency of the second high frequency signal is matched with the frequency of the first high frequency signal to increase the bandwidth and frequency band.
另外，依據上述將兩種天線結合時，可增加匹配電路以產生更適性化的頻寬，例如在饋入部前端配置電容及電感元件，以優化高頻的頻寬。也就是說，若平面倒F天線及線圈天線整合時，兩個天線在靠近的時候，可藉由具有電容、電感元件的電路作匹配，來達到頻寬與頻帶最佳化。在一實施例中，高頻天線採用串聯電感並聯電容的匹配電路。In addition, when the two antennas are combined according to the above, the matching circuit can be added to generate a more suitable bandwidth, for example, a capacitor and an inductance element are disposed at the front end of the feeding portion to optimize the bandwidth of the high frequency. That is to say, if the planar inverted F antenna and the coil antenna are integrated, when the two antennas are close, the bandwidth and the frequency band can be optimized by matching the circuits with the capacitors and the inductance components. In an embodiment, the high frequency antenna uses a matching circuit of series inductance parallel capacitors.
接著請參考第4圖，第4圖係繪示依照本發明之多頻天線裝置100之一實施例中的匹配電路400的示意圖。在本實施例中，匹配電路400包含電感420、電容430，電感420連接於饋入部114與射頻(RF)通信設備410之間，電容430連接於饋入部114與接地端之間，如此一來多頻天線裝置100便可達到頻寬與頻帶最佳化的效果。Next, please refer to FIG. 4, which is a schematic diagram of the matching circuit 400 in an embodiment of the multi-frequency antenna device 100 according to the present invention. In this embodiment, the matching circuit 400 includes an inductor 420 and a capacitor 430. The inductor 420 is connected between the feeding portion 114 and the radio frequency (RF) communication device 410. The capacitor 430 is connected between the feeding portion 114 and the ground. The multi-frequency antenna device 100 achieves the effect of optimizing bandwidth and frequency band.
綜合上述，本天線的設計是將兩種天線架構使用一個饋入點和兩個接地點整合而成，藉由兩種天線的結合以增加天線使用頻寬，例如：產生一個低頻共振及兩個高頻共振。而天線架構中低頻共振與高頻共振可利用槽孔尺寸調整操作頻率及阻抗頻寬，以達到所需要的操作頻率及阻抗頻寬。In summary, the antenna is designed to integrate two antenna architectures using one feed point and two ground points. The combination of the two antennas increases the bandwidth of the antenna, for example, generating a low frequency resonance and two High frequency resonance. In the antenna architecture, low-frequency resonance and high-frequency resonance can use the slot size to adjust the operating frequency and impedance bandwidth to achieve the required operating frequency and impedance bandwidth.
此外，天線饋入點與兩個接地點之間的間距為相同距離，減少製作設計上的繁複。其次，天線的饋入部與接地部可以縮小靠近，以設計在同一印刷電路板上，使之能與其他功能元件共存，甚至在金屬平面上，仍能有良好的阻抗頻寬及輻射效率。In addition, the distance between the antenna feed point and the two ground points is the same distance, which reduces the complexity of the design. Secondly, the feeding portion and the grounding portion of the antenna can be reduced in close proximity to be designed on the same printed circuit board so that they can coexist with other functional components, and even have good impedance bandwidth and radiation efficiency even in the metal plane.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，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。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.
100．．．多頻天線裝置100. . . Multi-frequency antenna device
110．．．第一天線110. . . First antenna
112．．．第一接地部112. . . First grounding
114．．．饋入部114. . . Feeding department
116．．．第一輻射體116. . . First radiator
117．．．第二輻射體117. . . Second radiator
118．．．槽孔118. . . Slot
119．．．槽孔119. . . Slot
120．．．第二天線120. . . Second antenna
122．．．第二接地部122. . . Second grounding
124．．．第三輻射體124. . . Third radiator
126．．．槽孔126. . . Slot
400．．．匹配電路400. . . Matching circuit
410．．．射頻通信設備410. . . Radio frequency communication equipment
420．．．電感420. . . inductance
430．．．電容430. . . capacitance
為讓本發明之上述和其他目的、特徵、優部與實施例能更明顯易懂，所附圖式之說明如下：The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.
第1圖係繪示依照本發明之一實施例的一種多頻天線裝置之示意圖。1 is a schematic diagram of a multi-frequency antenna device in accordance with an embodiment of the present invention.
第2A圖係繪示依照本發明之多頻天線裝置之一實施例之背視圖。Figure 2A is a rear elevational view of one embodiment of a multi-frequency antenna device in accordance with the present invention.
第2B圖係繪示第2A圖之多頻天線裝置之正視圖。Fig. 2B is a front elevational view showing the multi-frequency antenna device of Fig. 2A.
第3圖係繪示多頻天線裝置之一實施例所測試出的電壓駐波比(VSWR)對應於頻率之示意圖。Figure 3 is a schematic diagram showing the voltage standing wave ratio (VSWR) measured by an embodiment of the multi-frequency antenna device corresponding to frequency.
第4圖係繪示依照本發明之多頻天線裝置之一實施例中的匹配電路的示意圖。Figure 4 is a schematic diagram showing a matching circuit in one embodiment of a multi-frequency antenna device in accordance with the present invention.
100．．．多頻天線裝置100. . . Multi-frequency antenna device
110．．．第一天線110. . . First antenna
112．．．第一接地部112. . . First grounding
114．．．饋入部114. . . Feeding department
120．．．第二天線120. . . Second antenna
122．．．第二接地部122. . . Second grounding
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100137747A TWI487193B (en) | 2011-10-18 | 2011-10-18 | Multi-frequency antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100137747A TWI487193B (en) | 2011-10-18 | 2011-10-18 | Multi-frequency antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201318266A TW201318266A (en) | 2013-05-01 |
| TWI487193B true TWI487193B (en) | 2015-06-01 |
Family
ID=48872093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100137747A TWI487193B (en) | 2011-10-18 | 2011-10-18 | Multi-frequency antenna device |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI487193B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW527754B (en) * | 2001-12-27 | 2003-04-11 | Ind Tech Res Inst | Dual-band planar antenna |
| TWM341315U (en) * | 2008-01-18 | 2008-09-21 | Cybertan Technology Inc | Planar compact antenna |
-
2011
- 2011-10-18 TW TW100137747A patent/TWI487193B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW527754B (en) * | 2001-12-27 | 2003-04-11 | Ind Tech Res Inst | Dual-band planar antenna |
| TWM341315U (en) * | 2008-01-18 | 2008-09-21 | Cybertan Technology Inc | Planar compact antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201318266A (en) | 2013-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI630759B (en) | Antenna structure and wireless communication device using the same | |
| EP3082192B1 (en) | Antenna and mobile terminal | |
| US8134517B2 (en) | Wide-band planar antenna | |
| US9276320B2 (en) | Multi-band antenna | |
| TWI508376B (en) | Multiband antenna | |
| US7501987B2 (en) | Triple-band antenna and electronic device thereof | |
| TWI622222B (en) | Antenna structure and wireless communication device using the same | |
| TWI628851B (en) | Multi-band antenna structure | |
| US9640868B2 (en) | Wideband antenna and wireless communication device | |
| US20110199265A1 (en) | Three-band antenna device with resonance generation and portable electronic device having the same | |
| TWI599095B (en) | Antenna structure and wireless communication device using the same | |
| EP2747201B1 (en) | Multimode wideband antenna module and wireless terminal | |
| TWI644479B (en) | Multiple antenna apparatus | |
| US8750947B2 (en) | Mobile device and wideband antenna structure therein | |
| TWM478253U (en) | Broadband antenna | |
| TW201517389A (en) | Antenna structure and wireless communication device using same | |
| TW201442349A (en) | Antenna structure and wireless communication device using same | |
| TW201511406A (en) | Broadband antenna | |
| TWI619314B (en) | Multiple frequency antenna | |
| CN103078174A (en) | Multifrequency antenna device | |
| US10008776B2 (en) | Wideband antenna | |
| JP2013247526A (en) | Antenna device | |
| JP2009044604A (en) | Ground integrated antenna | |
| US10811775B2 (en) | Loop antenna | |
| TWI630758B (en) | Antenna structure and wireless communication device with same |