TWI531119B - Multi-band planner inverted-f antenna - Google Patents
Multi-band planner inverted-f antenna Download PDFInfo
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本發明係關於一種多頻平面倒F型天線，尤指一種可適用於4G LTE(Long Term Evolution，長期演進技術)及3G(3rd-Generation，第三代行動通訊技術)之諸頻段的多頻平面倒F型天線。 The present invention relates to a multi-frequency planar inverted-F antenna, and more particularly to a multi-frequency applicable to frequency bands of 4G LTE (Long Term Evolution) and 3G (3rd-Generation). Planar inverted F antenna.
隨著無線通訊技術迅速的發展，各種消費性電子產品已成為人們生活中不可或缺的一部分，而把各種不同的無線通訊系統做一整合是目前的趨勢，所以需要寬頻與多頻段天線較能滿足此需求。但為了維持無線通訊設備的高流動性及品質，天線的小型化、低成本及容易製作較能符合商業上的需求，目前PIFA(Planar Inverted F-shaped Antenna，平面倒F型天線)為通用的類型，且廣泛應用於各種無線通信裝置上，例如在手機、PDA、筆記型電腦、車載GPS和無線路由器等無線通訊終端裝置上；一般傳統PIFA天線大都應於手機上，將PIFA天線應用於筆記型電腦上時，有提出一種N-Type PIFA的改良版，此種N-Type PIFA天線具有縮小化且可產生雙頻的特性。而目前PIFA天線為了增加頻寬的方式有設置阻抗匹配、增加天線高度或改變介質等方式；另亦得藉由增設寄生元件或輻射元件的方式，增加頻寬，例如，我國第I399887號發明專利，此篇專利為N-Type PIFA天線於其短路路徑上產生輻射元件，以提供額外訊號路徑來增加頻寬。但不管以何種方式增加PIFA天線的頻寬，皆會提高天線製作的成本以 及容置天線所需佔用的空間，故使得PIFA天線的微型化存在著相當的困難度，而降低了PIFA天線在目前主流輕薄短小趨勢下的各式無線傳輸行動電子裝置中的可應用性。 With the rapid development of wireless communication technology, various consumer electronic products have become an indispensable part of people's lives, and the integration of various wireless communication systems is the current trend, so it is more suitable for broadband and multi-band antennas. Meet this need. However, in order to maintain the high mobility and quality of wireless communication equipment, the antenna is compact, low-cost and easy to manufacture. It is more suitable for commercial needs. Currently, PIFA (Planar Inverted F-shaped Antenna) is universal. Type, and widely used in various wireless communication devices, such as mobile phone, PDA, notebook computer, car GPS and wireless router and other wireless communication terminal devices; generally traditional PIFA antenna should be on the mobile phone, the PIFA antenna is applied to the note On the computer, an improved version of the N-Type PIFA has been proposed, which has a reduction in size and a dual frequency. At present, in order to increase the bandwidth, the PIFA antenna has the methods of setting impedance matching, increasing the height of the antenna or changing the medium; and also increasing the bandwidth by adding a parasitic element or a radiating element, for example, the invention patent No. I399887 of China This patent uses an N-Type PIFA antenna to generate radiating elements on its short-circuit path to provide additional signal paths to increase bandwidth. But no matter how you increase the bandwidth of the PIFA antenna, it will increase the cost of antenna fabrication. And the space required for accommodating the antenna, so that the miniaturization of the PIFA antenna is quite difficult, and the applicability of the PIFA antenna in various wireless transmission mobile electronic devices under the current mainstream thin and short trend is reduced.
4G LTE嚴然已成為電信業界相當矚目的主流行動無線寬頻技術，它可以讓電信服務供應商，透過較為經濟的設備增購方式，提供使用者更迅速的無線寬頻服務，於行動上網的服務上，稱可超越現今3G無線網路上網的5倍效能。反觀一般傳統PIFA天線或N-Type PIFA天線卻只能在3G的頻段內有特定頻寬的傳輸效能，更無法在4G LTE的各頻段內有令人滿意的傳輸效能，故易受限於4G LTE頻段的限制，使行動裝置無法提供更迅速的網際網路服務。 4G LTE has become a mainstream mobile wireless broadband technology in the telecom industry. It enables telecom service providers to provide users with faster wireless broadband services through more economical equipment purchases. It claims to exceed the 5 times performance of today's 3G wireless Internet access. In contrast, the conventional PIFA antenna or the N-Type PIFA antenna can only have a specific bandwidth transmission performance in the 3G frequency band, and it is not able to have satisfactory transmission performance in each frequency band of the 4G LTE, so it is easily limited to 4G. The limitations of the LTE band make mobile devices unable to provide faster Internet services.
有鑑於上述先前技術的諸多限制，如何使習知的PIFA天線結構，能夠不須增加整體天線架構的尺寸及數量，即可達到令消費者滿意的廣頻段網際網路運作功能，同時，能在各個4G LTE頻段內皆有良好的增益表現，誠為目前天線設計業界亟需研發與改良的重點，期以PIFA天線的簡單架構，即能應用在各類的行動電子裝置上，並提供更佳的網路使用效能與可靠度。 In view of the above limitations of the prior art, how to enable the conventional PIFA antenna structure to achieve the wide-band Internet operation function satisfactory to consumers without increasing the size and number of the overall antenna architecture, and at the same time, In the 4G LTE frequency band, there is good gain performance. The current antenna design industry needs to focus on R&D and improvement. The simple architecture of the PIFA antenna can be applied to all kinds of mobile electronic devices and provide better. Network performance and reliability.
本發明之主要目的在於提供一種可適用於4G LTE及3G頻段之多頻平面倒F型天線。 The main purpose of the present invention is to provide a multi-frequency planar inverted-F antenna suitable for 4G LTE and 3G frequency bands.
本發明之另一目的在於提供一種輻射效率佳且空間利用性高之多頻平面倒F型天線。 Another object of the present invention is to provide a multi-frequency planar inverted-F antenna with high radiation efficiency and high space utilization.
一種多頻平面倒F型天線，包含：一高頻帶輻射部、一低頻 帶輻射部、一阻抗匹配部、一訊號饋入點、一連接部及一接地部，該高頻帶輻射部及低頻帶輻射部係設置於該連接部之左右兩側，且該阻抗匹配部與該低頻帶輻射部相對應地設置於該連接部之上下兩端，其中該阻抗匹配部可增加阻抗頻寬，並具有一第一阻抗匹配段、一平行該第一阻抗匹配段之第二阻抗匹配段及連結該第一阻抗匹配段和第二阻抗匹配段之一阻抗匹配連結段，使該阻抗匹配部之一端連結該連接部，而另一端則與該接地部連結，該訊號饋入點落於靠近該連接部之一隅處，以相對於該第一阻抗匹配段設置，使該訊號饋入點至該第一阻抗匹配段連結該阻抗匹配連結段端之距離約為該第二阻抗匹配段連結該阻抗匹配連結段端至該接她部之距離的1.72至2倍間，且該訊號饋入點至該第一阻抗匹配段連結阻抗匹配連段端之距離與該第二阻抗匹配段連結該阻抗匹配連結段端至該接地部之距離的總長度近於操作頻帶波長的0.1至0.15倍間。 A multi-frequency planar inverted-F antenna comprising: a high-band radiation part, a low frequency a radiation receiving portion, an impedance matching portion, a signal feeding point, a connecting portion and a grounding portion, wherein the high-band radiation portion and the low-band radiation portion are disposed on the left and right sides of the connecting portion, and the impedance matching portion is The low-band radiation portion is correspondingly disposed on the upper and lower ends of the connecting portion, wherein the impedance matching portion increases the impedance bandwidth, and has a first impedance matching segment and a second impedance parallel to the first impedance matching segment a matching segment and an impedance matching connecting segment connecting the first impedance matching segment and the second impedance matching segment, such that one end of the impedance matching portion is coupled to the connecting portion, and the other end is coupled to the ground portion, the signal feeding point And falling near one of the connecting portions to be disposed relative to the first impedance matching segment, such that the signal feeding point to the first impedance matching segment is coupled to the impedance matching connecting segment end by a distance of about the second impedance matching The segment is connected between the impedance matching link segment end to the distance of the connected portion from 1.72 to 2 times, and the signal feeding point to the first impedance matching segment is connected to the impedance matching segment end and the second impedance matching segment even The impedance matching section coupling end portion to the distance of the total length of the ground close to the operating band of wavelengths between from 0.1 to 0.15 times.
本發明多頻平面倒F型天線，由該連接部上之訊號饋入點至該高頻帶輻射部形成一A路徑，該A路徑為高頻輻射之路徑長度，其可控制1700MHz以上的高頻段諧振頻率；而由該連接部上之訊號饋入點至該低頻帶輻射部形成一B路徑，該B路徑為低頻輻射之路徑長度，其可控制900MHz以下的低頻諧振頻率；另由該連接部上之訊號饋入點至該第一阻抗匹配段連結阻抗匹配連結段端與該第二阻抗匹配段連結該阻抗匹配連結段端至該接地部形成一C路徑，該C路徑之路徑長度，係用以改善低頻的阻抗匹配並增加頻寬；另，亦得增加一個金屬的高頻諧振路徑，提升高頻段的輻射效率。 The multi-frequency planar inverted-F antenna of the present invention forms an A path from the signal feeding point on the connecting portion to the high-band radiation portion, and the A path is a path length of high-frequency radiation, which can control a high frequency band above 1700 MHz. a resonant frequency; and a signal from the signal feeding point on the connecting portion to the low-band radiating portion forms a B path, which is a path length of low-frequency radiation, which can control a low-frequency resonant frequency below 900 MHz; and the connecting portion a signal path from the upper signal feeding point to the first impedance matching segment connecting impedance matching connecting segment end and the second impedance matching segment connecting the impedance matching connecting segment end to the ground portion to form a C path, the path length of the C path It is used to improve the impedance matching of the low frequency and increase the bandwidth. In addition, it is necessary to increase the high frequency resonance path of a metal to improve the radiation efficiency of the high frequency band.
本發明天多頻平面倒F型天線之訊號饋入點至該第一阻抗 匹配段連結該阻抗匹配連結段端間之距離約為36.8mm，而該接地部連接之接地銅箔長度約為23.7mm，而該第二阻抗匹配段連結該阻抗匹配連結段端至該連接接地銅箔之接地部距離約為18.4mm；另外，該A路徑之長度約為31.3mm，而該B路徑之長度約為72.5mm，而該C路徑之長度約為55.8mm。 The signal feeding point of the multi-frequency plane inverted F antenna of the present invention to the first impedance The distance between the end of the matching segment connecting the impedance matching connecting segment is about 36.8 mm, and the length of the grounding copper foil connected to the grounding portion is about 23.7 mm, and the second impedance matching segment is connected to the impedance matching connecting segment end to the connecting ground. The distance between the ground portions of the copper foil is about 18.4 mm; in addition, the length of the A path is about 31.3 mm, and the length of the B path is about 72.5 mm, and the length of the C path is about 55.8 mm.
本發明多頻平面倒F型天線之訊號饋入點至該第一阻抗匹配段連結阻抗匹配連結段端間之距離與該第二阻抗匹配段連結該阻抗匹配連結段端至該接地部之距離的總長度約為操作頻帶波長(λ)的0.15倍。 The distance between the signal feeding point of the multi-frequency plane inverted-F antenna of the multi-frequency plane inverted-F antenna to the end of the first impedance matching section connecting the impedance matching connecting section and the distance of the second impedance matching section connecting the impedance matching connecting section end to the grounding part The total length is approximately 0.15 times the wavelength (λ) of the operating band.
本發明多頻平面倒F型天線之訊號饋入點至該第一阻抗匹配段連結該阻抗匹配連結段端間之距離約為該第二阻抗匹配段連結該阻抗匹配連結段端至該接地部之距離的2倍。 The signal feeding point of the multi-frequency plane inverted-F antenna of the present invention is connected to the first impedance matching section and the distance between the ends of the impedance matching connecting section is about the second impedance matching section connecting the impedance matching connecting section end to the grounding part. 2 times the distance.
在參閱下述詳細的實施方式及相關的圖示與申請專利範圍後，閱者將更能了解本發明其他的目的、特徵、及優點。 Other objects, features, and advantages of the present invention will become apparent from the <RTIgt;
100‧‧‧多頻平面倒F型天線 100‧‧‧Multi-frequency planar inverted F antenna
10‧‧‧高頻帶輻射部 10‧‧‧High-band radiation department
20‧‧‧低頻帶輻射部 20‧‧‧Low-band radiation department
30‧‧‧阻阬匹配部 30‧‧‧Resistance Matching Department
31‧‧‧第一阻抗匹配段 31‧‧‧First impedance matching segment
32‧‧‧第二阻抗匹配段 32‧‧‧Second impedance matching segment
33‧‧‧阻抗匹配連結段 33‧‧‧Imped matching link
40‧‧‧訊號饋入點 40‧‧‧ Signal Feeding Point
50‧‧‧連接部 50‧‧‧Connecting Department
60‧‧‧接地部 60‧‧‧ Grounding Department
A、B、C‧‧‧路徑 A, B, C‧‧‧ Path
第一圖係顯示一種根據本發明多頻平面倒F型天線之示意圖。 The first figure shows a schematic diagram of a multi-frequency planar inverted-F antenna according to the present invention.
第二圖係顯示第一圖本發明多頻平面倒F型天線的電壓駐波比測試圖。 The second figure shows a voltage standing wave ratio test chart of the multi-frequency planar inverted-F antenna of the first embodiment of the present invention.
第三圖係顯示第一圖本發明多頻平面倒F型天線的輻射效率測試圖。 The third figure shows the radiation efficiency test chart of the multi-frequency planar inverted-F antenna of the first figure of the present invention.
請參考第一圖，係顯示一種根據本發明多頻平面倒F型天線之示意圖。本發明多頻平面倒F型天線100，包含：一高頻帶輻射部10、一 低頻帶輻射部20、一阻抗匹配部30、一訊號饋入點40、一連接部50及一接地部60，該高頻帶輻射部10及低頻帶輻射部20係設置於該連接部50之左右兩側，且該阻抗匹配部30與該低頻帶輻射部20相對應地設置於該連接部50之上下兩端，其中該阻抗匹配部30可增加阻抗頻寬，並具有一第一阻抗匹配段31、一平行該第一阻抗匹配段31之第二阻抗匹配段32及一連結該第一阻抗匹配段31和第二阻抗匹配段32之阻抗匹配連結段33，使該阻抗匹配部30之一端連結該連接部50，而另一端則與該接地部60連結，該接地部60以習知方式連結一銅箔，該訊號饋入點40落於靠近該連接部50之一隅處，以相對於該第一阻抗匹配段31設置，使該訊號饋入點40至該第一阻抗匹配段31連結該阻抗匹配連結段33端之距離(L1)約為該第二阻抗匹配段32連結該阻抗匹配連結段33端至該接地部60/銅箔之距離(L2)的2倍，且該訊號饋入點40至該第一阻抗匹配段31連結阻抗匹配連結段33端之距離(L1)與該第二阻抗匹配段32連結該阻抗匹配連結段33端至該接地部60/銅箔之距離(L2)的總長度近於操作頻帶波長(λ)的0.15倍。 Referring to the first figure, a schematic diagram of a multi-frequency planar inverted-F antenna according to the present invention is shown. The multi-frequency planar inverted-F antenna 100 of the present invention comprises: a high-band radiation portion 10, a The low-band radiating portion 20, an impedance matching portion 30, a signal feeding point 40, a connecting portion 50, and a ground portion 60, and the high-band radiating portion 10 and the low-band radiating portion 20 are disposed at the left and right of the connecting portion 50. On both sides, the impedance matching portion 30 is disposed on the upper and lower ends of the connecting portion 50 corresponding to the low-band radiating portion 20, wherein the impedance matching portion 30 can increase the impedance bandwidth and has a first impedance matching portion. 31. A second impedance matching section 32 parallel to the first impedance matching section 31 and an impedance matching connecting section 33 connecting the first impedance matching section 31 and the second impedance matching section 32 to make one end of the impedance matching section 30 The connecting portion 50 is connected, and the other end is connected to the ground portion 60. The ground portion 60 is connected to a copper foil in a conventional manner, and the signal feeding point 40 is located near one of the connecting portions 50 to The first impedance matching section 31 is disposed such that the distance (L1) between the signal feeding point 40 and the first impedance matching section 31 connected to the end of the impedance matching connecting section 33 is about the second impedance matching section 32 connecting the impedance matching. 2 times the distance from the end of the connecting section 33 to the grounding portion 60/copper foil (L2) And the signal feeding point 40 to the first impedance matching section 31 is connected to the end of the impedance matching connecting section 33 (L1) and the second impedance matching section 32 is connected to the impedance matching connecting section 33 end to the grounding part 60/copper The total length of the foil distance (L2) is approximately 0.15 times the operating band wavelength (λ).
請繼續參考第一圖，本發明多頻平面倒F型天線100之連接部50以及低頻帶輻射部20之寬度均較該高頻帶輻射部10更寬，用以增加阻抗頻寬。此外，由該連接部50上之訊號饋入點40至該高頻帶輻射部10形成一A路徑，該A路徑為高頻輻射之路徑長度，其可控制1700MHz以上的高頻段諧振頻率；而由該連接部50上之訊號饋入點40至該低頻帶輻射部20形成一B路徑，該B路徑為低頻輻射之路徑長度，其可控制900MHz以下的低頻諧振頻率；另由該連接部50上之訊號饋入點40至該第一阻抗匹配段31連結阻抗匹配連結段33端與該第二阻抗匹配段32連結該阻抗匹配連結段33端至該 接地部60形成一C路徑，該C路徑之路徑長度，係用以改善低頻的阻抗匹配增加頻寬；另外，亦可視個案需求，在該高頻帶輻射部10上，增設至少一個高頻的諧振路徑，藉以提升高頻段的輻射效率，該高頻的諧振路徑(圖中未示)為金屬質。在第一圖的本發明實施例中，該L1長度約為36.8mm(公釐)，而接地部60所連接接地銅箔之長度約為23.7mm(公釐)，而該L2長度約為18.4mm(公釐)；另外，該A路徑之長度約為31.3mm(公釐)，該B路徑之長度約為72.5mm(公釐)，C路徑之長度約為55.8mm(公釐)，藉由如圖示之本發明多頻平面倒F型天線100所定義L1長度與L2長度，而使得本發明多頻平面倒F型天線100在不增加寄生元件或輻射元件之情況下，明顯改善低頻的阻抗匹配，並可增加頻寬。 Referring to the first figure, the width of the connecting portion 50 and the low-band radiating portion 20 of the multi-frequency planar inverted-F antenna 100 of the present invention are wider than the high-band radiating portion 10 for increasing the impedance bandwidth. In addition, an A-path is formed by the signal feeding point 40 on the connecting portion 50 to the high-band radiating portion 10, and the A-path is a path length of high-frequency radiation, which can control a high-band resonance frequency of 1700 MHz or more; The signal feeding point 40 on the connecting portion 50 to the low-band radiating portion 20 forms a B path, which is a path length of low-frequency radiation, which can control a low-frequency resonant frequency below 900 MHz; and the connecting portion 50 a signal feeding point 40 to the first impedance matching section 31 connecting the impedance matching connecting section 33 end and the second impedance matching section 32 connecting the impedance matching connecting section 33 end to the The grounding portion 60 forms a C path, and the path length of the C path is used to improve the impedance matching of the low frequency to increase the bandwidth. In addition, at least one high frequency resonance is added to the high frequency band radiating portion 10 according to the case requirement. The path is used to increase the radiation efficiency of the high frequency band, and the high-frequency resonance path (not shown) is metallic. In the embodiment of the invention in the first figure, the length of the L1 is about 36.8 mm (millimeter), and the length of the grounded copper foil connected to the ground portion 60 is about 23.7 mm (millimeter), and the length of the L2 is about 18.4. Mm (mm); in addition, the length of the A path is about 31.3 mm (millimeter), the length of the B path is about 72.5 mm (millimeter), and the length of the C path is about 55.8 mm (millimeter). The L1 length and the L2 length are defined by the multi-frequency planar inverted-F antenna 100 of the present invention as illustrated, so that the multi-frequency planar inverted-F antenna 100 of the present invention significantly improves the low frequency without adding parasitic elements or radiating elements. The impedance is matched and the bandwidth can be increased.
須注意的是，本發明多頻平面倒F型天線100之訊號饋入點40至該第一阻抗匹配段31連結該阻抗匹配連結段33端間之距離(L1)，經發明人的設計，係介於該第二阻抗匹配段32連結該阻抗匹配連結段33端至該接地部60/銅箔之距離(L2)的1.72~2倍間，以達到增加頻寬並提昇輻射效率，且該訊號饋入點40至該第一阻抗匹配段31連結阻抗匹配連結段33端間之距離(L1)與該第二阻抗匹配段32連結該阻抗匹配連結段33端至該接地部60/銅箔之距離(L2)的總長度，亦經發明人的設計，使介於0.1~0.15倍間的操作頻帶波長(λ)，以期獲致最佳的阻抗特性。 It should be noted that the signal feeding point 40 of the multi-frequency planar inverted-F antenna 100 of the present invention to the first impedance matching section 31 is connected to the distance (L1) between the ends of the impedance matching connecting section 33, and the inventor has designed The second impedance matching section 32 is connected between the end of the impedance matching connecting section 33 to the grounding portion 60/copper foil distance (L2) by 1.72~2 times to increase the bandwidth and improve the radiation efficiency. The signal feeding point 40 to the first impedance matching section 31 is connected to the distance between the ends of the impedance matching connecting section 33 (L1) and the second impedance matching section 32 is connected to the impedance matching connecting section 33 end to the grounding portion 60/copper foil The total length of the distance (L2) is also designed by the inventor to achieve an operating band wavelength (λ) between 0.1 and 0.15 times in order to obtain optimum impedance characteristics.
請參考第二圖與第三圖，係顯示第一圖本發明多頻平面倒F型天線的電壓駐波比測試圖以及其輻射效率測試圖。由第二圖可看出，本發明多頻平面倒F型天線雖然在低頻時電壓駐波略大，但觀之第三圖的輻射效率，其頻寬效率顯有大幅提昇。由此可知，本發明多頻平 面倒F型天線在低頻的增益頻寬可倍比提昇，且在高頻時的阻抗匹配以及輻射效率均具備現有水準以上的效能表現，尤其在操作頻段方面，更可跨越4G LTE及3G無線傳輸所需的各個頻段。 Referring to the second and third figures, the voltage standing wave ratio test chart of the multi-frequency planar inverted-F antenna of the present invention and the radiation efficiency test chart thereof are shown. As can be seen from the second figure, although the multi-frequency planar inverted-F antenna of the present invention has a slightly larger voltage standing wave at a low frequency, the bandwidth efficiency of the third figure is significantly improved. It can be seen that the multi-frequency flat of the present invention The F-type antenna can increase the gain bandwidth at low frequencies, and the impedance matching and radiation efficiency at high frequencies have the performance above the existing level. Especially in the operating frequency band, it can span 4G LTE and 3G wireless transmission. The various frequency bands required.
綜上，本發明多頻平面倒F型天線，藉由設計訊號饋入點至接地部的銅箔間之路徑長度，可有效增加頻寬，並使訊號饋入點至該第一阻抗匹配段連結該阻抗匹配連結段端間之距離約為該第二阻抗匹配段連結該阻抗匹配連結段端至該接地部/銅箔之距離的1.72至2倍間，且該訊號饋入點至該第一阻抗匹配段連結阻抗匹配連段端間之距離與該第二阻抗匹配段連結該阻抗匹配連結段端至該接地部/銅箔之距離的總長度近於操作頻帶波長的0.1至0.15倍間，可有效縮小該接地銅箔所需的面積，降低天線生產成本；在天線效能方面，本發明多頻平面倒F型天線可於低頻段獲致顯著提昇，且在高頻段仍有水準以上的運作效能。 In summary, the multi-frequency planar inverted-F antenna of the present invention can effectively increase the bandwidth by designing the path length between the signal feeding point and the copper foil of the grounding portion, and the signal feeding point to the first impedance matching segment. The distance between the ends of the impedance matching connecting segment is about 1.72 to 2 times the distance between the impedance matching connecting segment end and the grounding portion/copper foil, and the signal feeding point is to the first The distance between the end of the impedance matching segment connecting impedance matching segment and the distance between the impedance matching segment end of the second impedance matching segment and the grounding portion/copper foil is close to 0.1 to 0.15 times the wavelength of the operating band The area required for the grounded copper foil can be effectively reduced, and the antenna production cost can be reduced. In terms of antenna performance, the multi-frequency planar inverted-F antenna of the present invention can be significantly improved in the low frequency band, and the operation is still higher than the standard level in the high frequency band. efficacy.
100‧‧‧多頻平面倒F型天線 100‧‧‧Multi-frequency planar inverted F antenna
10‧‧‧高頻帶輻射部 10‧‧‧High-band radiation department
20‧‧‧低頻帶輻射部 20‧‧‧Low-band radiation department
30‧‧‧阻抗匹配部 30‧‧‧Impedance Matching Department
31‧‧‧第一阻抗匹配段 31‧‧‧First impedance matching segment
32‧‧‧第二阻抗匹配段 32‧‧‧Second impedance matching segment
33‧‧‧阻抗匹配連結段 33‧‧‧Imped matching link
40‧‧‧訊號饋入點 40‧‧‧ Signal Feeding Point
50‧‧‧連接部 50‧‧‧Connecting Department
60‧‧‧接地部 60‧‧‧ Grounding Department
A、B、C‧‧‧路徑 A, B, C‧‧‧ Path
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| TW102141606A TWI531119B (en) | 2013-11-15 | 2013-11-15 | Multi-band planner inverted-f antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI714369B (en) * | 2019-11-28 | 2020-12-21 | 廣達電腦股份有限公司 | Antenna structure |
| US11165458B2 (en) | 2014-02-24 | 2021-11-02 | National Products, Inc. | Docking sleeve with electrical adapter |
| US11652326B2 (en) | 2021-04-30 | 2023-05-16 | National Products, Inc. | Dock with flexible locator pins and methods of making and using |
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| TWI800251B (en) * | 2022-02-09 | 2023-04-21 | 緯創資通股份有限公司 | Antenna structure and mobile device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11165458B2 (en) | 2014-02-24 | 2021-11-02 | National Products, Inc. | Docking sleeve with electrical adapter |
| TWI714369B (en) * | 2019-11-28 | 2020-12-21 | 廣達電腦股份有限公司 | Antenna structure |
| US11652326B2 (en) | 2021-04-30 | 2023-05-16 | National Products, Inc. | Dock with flexible locator pins and methods of making and using |
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