TWI768895B - Branch-line coupler - Google Patents
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Abstract
Description
本發明是關於一種分支耦合器。 The present invention relates to a branch coupler.
於現有技術中，微波電路通常使用定向耦合器來解決由分配功率引起的相關問題。隨著移動通信技術和衛星通信技術的發展，為了便於攜帶和移動，通信設備的小型化則顯得越來越重要。然而，傳統的3dB分支耦合器佔用了較大的電路板面積。因此，如何縮小分支耦合器的面積並維持其性能為目前所需解決的問題。 In the prior art, microwave circuits typically use directional couplers to solve the problems associated with distributing power. With the development of mobile communication technology and satellite communication technology, in order to facilitate portability and mobility, the miniaturization of communication equipment becomes more and more important. However, conventional 3dB branch couplers take up a large board area. Therefore, how to reduce the area of the branch coupler and maintain its performance is a problem that needs to be solved at present.
有鑑於此，需要一種小型化的分支耦合器，以滿足通信技術的要求，從而優化通信產品的設計。 In view of this, a miniaturized branch coupler is required to meet the requirements of communication technology, thereby optimizing the design of communication products.
本發明提供一種分支耦合器，適用於射頻電路，包括輸入端、第一輸出端、第二輸出端、隔離端、第一傳輸線、第二傳輸線、第一彎折形分支線及第二彎折形分支線。所述第一傳輸線電連接於所述輸入端及所述第一輸出端之間，且具有兩個開路支節。所述第二傳輸線電連接於所述隔離端與所述第二輸出端之間，且具有兩個開路支節。所述第一彎折形分支線電連接於所述輸入端及所述隔離端之間。所述第二彎折形分支線電連接於所述第一輸出端及所述第二輸出端之間。 The present invention provides a branch coupler suitable for radio frequency circuits, comprising an input end, a first output end, a second output end, an isolation end, a first transmission line, a second transmission line, a first bent branch line and a second bent shaped branch line. The first transmission line is electrically connected between the input end and the first output end, and has two open-circuit branches. The second transmission line is electrically connected between the isolation end and the second output end, and has two open-circuit branches. The first bent branch line is electrically connected between the input end and the isolation end. The second bent branch line is electrically connected between the first output end and the second output end.
根據本發明一實施例，所述第一彎折形分支線具有第一區段、第二區段及介於所述第一區段與所述第二區段之間的第一“U”字型區段，及所述 第二彎折形分支線具有第三區段、第四區段及介於所述第三區段與所述第四區段之間的第二“U”字型區段。 According to an embodiment of the present invention, the first bent branch line has a first section, a second section and a first "U" between the first section and the second section font section, and the The second bent branch line has a third section, a fourth section, and a second "U"-shaped section between the third section and the fourth section.
根據本發明另一實施例，所述第一區段、所述第二區段、所述第三區段及所述第四區段的寬度大於所述第一“U”字型區段及所述第二“U”字型區段的寬度。 According to another embodiment of the present invention, the widths of the first section, the second section, the third section and the fourth section are larger than those of the first "U"-shaped section and The width of the second "U" shaped section.
根據本發明另一實施例，所述第一“U”字型區段的開口方向與所述第二“U”字型區段的開口方向相反。 According to another embodiment of the present invention, the opening direction of the first "U"-shaped section is opposite to the opening direction of the second "U"-shaped section.
根據本發明另一實施例，所述第一長條形傳輸線及所述第二長條形傳輸線的所述兩個開路支節為魚骨狀結構。 According to another embodiment of the present invention, the two open-circuit branches of the first elongated transmission line and the second elongated transmission line are fishbone-like structures.
根據本發明另一實施例，所述第一長條形傳輸線及所述第二長條形傳輸線的所述兩個開路支節為沿著中心垂直線對稱。 According to another embodiment of the present invention, the two open-circuit branches of the first elongated transmission line and the second elongated transmission line are symmetrical along a center vertical line.
根據本發明另一實施例，所述魚骨狀結構具有一個垂直區段及四個水平區段。 According to another embodiment of the present invention, the fishbone structure has one vertical section and four horizontal sections.
根據本發明另一實施例，位於所述魚骨狀結構末端的所述水平區段的寬度大於其他所述水平區段的寬度。 According to another embodiment of the present invention, the width of the horizontal section located at the end of the fishbone structure is larger than the width of other horizontal sections.
根據本發明另一實施例，所述第一彎折形分支線及所述第二彎折形分支線為50歐姆微帶線。 According to another embodiment of the present invention, the first bent branch line and the second bent branch line are 50 ohm microstrip lines.
根據本發明另一實施例，所述第一長條形傳輸線及所述第二長條形傳輸線為53.35歐姆微帶線。 According to another embodiment of the present invention, the first elongated transmission line and the second elongated transmission line are 53.35 ohm microstrip lines.
Ax1、Ax2:對稱軸 Ax1, Ax2: Symmetry axis
D1-D12:結構尺寸 D1-D12: Structural dimensions
P1:輸入端 P1: input terminal
P2:第一輸出端 P2: The first output terminal
P3:第二輸出端 P3: The second output terminal
P4:隔離端 P4: Isolated end
S1-S6:傳輸線區段 S1-S6: Transmission line segment
St1、St2:第一開路支節 St1, St2: the first open branch
St3、St4:第二開路支節 St3, St4: the second open branch
T1:第一傳輸線 T1: The first transmission line
T2:第二傳輸線 T2: Second transmission line
T3:第一彎折形分支線 T3: The first bent branch line
T4:第二彎折形分支線 T4: Second bent branch line
圖1為根據本發明一實施例所述的分支耦合器的結構示意圖。 FIG. 1 is a schematic structural diagram of a branch coupler according to an embodiment of the present invention.
圖2為根據本發明一實施例所述的分支耦合器的結構尺寸示意圖。 FIG. 2 is a schematic diagram of the structure and dimensions of a branch coupler according to an embodiment of the present invention.
圖3為根據本發明一實施例所述的分支耦合器的S參數模擬曲線圖。 FIG. 3 is an S-parameter simulation curve diagram of a branch coupler according to an embodiment of the present invention.
圖4為根據本發明一實施例所述的分支耦合器的第一輸出端與第二輸出端的輸出相位差異圖。 FIG. 4 is a diagram showing the output phase difference between the first output end and the second output end of the branch coupler according to an embodiment of the present invention.
圖5為根據本發明一實施例所述的分支耦合器的第一輸出端與第二輸出端的輸出幅值差異圖。 5 is a graph showing the difference in output amplitude between the first output end and the second output end of the branch coupler according to an embodiment of the present invention.
為了便於本領域普通技術人員理解和實施本發明，下面結合附圖與實施例對本發明進一步的詳細描述，應當理解，本發明提供許多可供應用的發明概念，其可以多種特定型式實施。熟悉此技藝之人士可利用這些實施例或其他實施例所描述之細節及其他可以利用的結構，邏輯和電性變化，在沒有離開本發明之精神與範圍之下以實施發明。 In order to facilitate understanding and implementation of the present invention by those of ordinary skill in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the present invention provides many applicable inventive concepts, which can be implemented in various specific forms. Those skilled in the art can utilize the details described in these and other embodiments and other structural, logical and electrical changes that may be utilized to practice the invention without departing from the spirit and scope of the invention.
本發明說明書提供不同的實施例來說明本發明不同實施方式的技術特徵。其中，實施例中的各元件之配置係為說明之用，並非用以限制本發明。且實施例中圖式標號之部分重複，係為了簡化說明，並非意指不同實施例之間的關聯性。其中，圖示和說明書中使用之相同的元件編號係表示相同或類似之元件。本說明書之圖示為簡化之形式且並未以精確比例繪製。為清楚和方便說明起見，方向性用語(例如頂、底、上、下以及對角)係針對伴隨之圖示說明。而以下說明所使用之方向性用語在沒有明確使用在以下所附之申請專利範圍時，並非用來限制本發明之範圍。 The present specification provides different embodiments to illustrate the technical features of different embodiments of the present invention. Wherein, the configuration of each element in the embodiment is for illustration, and not for limiting the present invention. In addition, some of the reference numerals in the drawings in the embodiments are repeated for the purpose of simplifying the description, and do not mean the relationship between different embodiments. Wherein, the same element numbers used in the drawings and the description represent the same or similar elements. The illustrations in this specification are in simplified form and are not drawn to precise scale. For clarity and convenience of description, directional terms (eg, top, bottom, upper, lower, and diagonal) are directed to the accompanying illustrations. The directional terms used in the following description are not intended to limit the scope of the present invention when they are not explicitly used in the scope of the patent application attached below.
再者，在說明本發明一些實施例中，說明書以特定步驟順序說明本發明之方法以及(或)程序。然而，由於方法以及程序並未必然根據所述之特定步驟順序實施，因此並未受限於所述之特定步驟順序。熟習此項技藝者可知其他順序也為可能之實施方式。因此，於說明書所述之特定步驟順序並未用來限定申請專利範圍。再者，本發明針對方法以及(或)程序之申請專利範圍並未受限於其撰寫之執行步驟順序，且熟習此項技藝者可瞭解調整執行步驟順序並未跳脫本發明之精神以及範圍。 Furthermore, in describing some embodiments of the present invention, the description describes the method and/or procedure of the present invention in a particular sequence of steps. However, since the methods and procedures are not necessarily implemented according to the specific order of steps described, they are not limited to the specific order of steps described. Those skilled in the art will appreciate that other sequences are possible implementations. Therefore, the specific sequence of steps described in the specification is not intended to limit the scope of the patent application. Furthermore, the scope of the patent application of the present invention for the method and/or program is not limited by the order of execution steps written therein, and those skilled in the art can understand that adjusting the sequence of execution steps does not deviate from the spirit and scope of the present invention. .
請參閱圖1，圖1為根據本發明一實施例所述的分支耦合器的結構示意圖。於本發明的實施方式中，分支耦合器100為基於Ax1軸及Ax2軸對稱。如圖1中所示，分支耦合器100至少包括輸入端P1、第一輸出端P2、第二輸出端P3、隔離端P4、第一傳輸線T1、第二傳輸線T2、第一彎折形分支線T3及第二彎折形分支線T4。其中，圖1中的輸入端P1、第一輸出端P2、第二輸出端P3及隔離端P4的傳輸線配置可根據使用者的埠匹配需求選擇具有不同阻抗的傳輸線，且前述埠的配置結構並不以本發明為限，可根據實際使用進行定義。 Please refer to FIG. 1 , which is a schematic structural diagram of a branch coupler according to an embodiment of the present invention. In the embodiment of the present invention, the branch coupler 100 is symmetrical based on the Ax1 axis and the Ax2 axis. As shown in FIG. 1 , the branch coupler 100 at least includes an input end P1, a first output end P2, a second output end P3, an isolation end P4, a first transmission line T1, a second transmission line T2, and a first bent branch line T3 and the second bent branch line T4. Among them, the transmission line configuration of the input end P1, the first output end P2, the second output end P3 and the isolation end P4 in FIG. 1 can be selected according to the user’s port matching requirements. Transmission lines with different impedances, and the aforementioned port configuration structures are not The invention is not limited by the present invention, and can be defined according to actual use.
第一傳輸線T1電性連接介於輸入端P1與第一埠P2之間，及第二傳輸線T2電性連接介於第二埠P3與隔離端P4之間。此外，第一傳輸線T1具有第一開路支節St1及第一開路支節St2，且第一開路支節St1與第一開路支節St2為基於Ax1軸對稱。第二傳輸線T2具有第二開路支節St3及第二開路支節St4，且第二開路支節St3與第二開路支節St4亦為基於Ax1軸對稱。此外，第一傳輸線T1與第二傳輸線T2為基於Ax2軸對稱，且第一開路支節St1、第一開路支節St2、第二開路支節St3及第二開路支節St4皆設置介於第一傳輸線T1與第二傳輸線T2之間。 The first transmission line T1 is electrically connected between the input end P1 and the first port P2, and the second transmission line T2 is electrically connected between the second port P3 and the isolation end P4. In addition, the first transmission line T1 has a first open branch St1 and a first open branch St2, and the first open branch St1 and the first open branch St2 are axially symmetric based on Ax1. The second transmission line T2 has a second open-circuit branch St3 and a second open-circuit branch St4, and the second open-circuit branch St3 and the second open-circuit branch St4 are also axis-symmetrical based on Ax1. In addition, the first transmission line T1 and the second transmission line T2 are axis-symmetrical based on Ax2, and the first open branch St1, the first open branch St2, the second open branch St3 and the second open branch St4 are all disposed between the first between a transmission line T1 and a second transmission line T2.
第三彎折形分支線T3電性連接介於輸入端P1與隔離端P4之間，及第四彎折形分支線T4電性連接介於第一埠P3與第二埠P4之間。第三彎折形分支線T3具有第一區段S1、第二區段S2及第一“U”字型區段S10，而第四彎折形分支線T4具有第三區段S3、第四區段S4及第二“U”字型區段S20。其中，第三彎折形分支線T3與第四彎折形分支線T4為基於Ax1軸對稱。此外，第三彎折形分支線T3的第一“U”字型區段S10及第四彎折形分支線T4的第二“U”字型區段S20的開口皆朝外。換言之，第一“U”字型區段S10與第二“U”字型區段S20的開口方向相反。值得注意的是，第三彎折形分支線T3與第四彎折形分支線T4的“U”字型區結構並非用以限制本發明，只要是通過彎折的方式減小耦合器的面積，皆符合本發明的精神。此外，根據本發明一實施方式，上述傳輸線可為微帶線，亦可為其他傳輸線。 The third bent branch line T3 is electrically connected between the input end P1 and the isolation end P4, and the fourth bent branch line T4 is electrically connected between the first port P3 and the second port P4. The third bent branch line T3 has a first segment S1, a second segment S2 and a first "U"-shaped segment S10, and the fourth bent branch line T4 has a third segment S3, a fourth Section S4 and the second "U"-shaped section S20. The third bent branch line T3 and the fourth bent branch line T4 are axially symmetric based on Ax1. In addition, the openings of the first "U"-shaped section S10 of the third bent branch line T3 and the second "U"-shaped section S20 of the fourth bent branch line T4 are both facing outward. In other words, the opening directions of the first "U"-shaped section S10 and the second "U"-shaped section S20 are opposite. It is worth noting that the "U"-shaped area structures of the third bent branch line T3 and the fourth bent branch line T4 are not intended to limit the present invention, as long as the area of the coupler is reduced by bending , all conform to the spirit of the present invention. In addition, according to an embodiment of the present invention, the above-mentioned transmission line may be a microstrip line, or may be other transmission lines.
根據本發明一實施例，第一傳輸線T1及第二傳輸線T2皆等效於35.35歐姆傳輸線，而第三彎折形分支線T3及第四彎折形分支線T4則等效於50歐姆傳輸線。但值得注意的是，上述傳輸線參數的選擇可以根據阻抗匹配進行適應性的選擇，本發明不以此為限。 According to an embodiment of the present invention, the first transmission line T1 and the second transmission line T2 are equivalent to 35.35 ohm transmission lines, and the third bent branch line T3 and the fourth bent branch line T4 are equivalent to 50 ohm transmission lines. However, it should be noted that the selection of the above transmission line parameters can be adaptively selected according to impedance matching, and the present invention is not limited to this.
圖2為根據本發明一實施例所述的分支耦合器的結構尺寸示意圖。如圖2所示，輸入端P1與第一輸出端P2之間的長度D1小於輸入端P1與隔離端P4之間的長度D2。第一“U”字型區段S10的線寬小於第一區段S1及第二區段S2的線寬。第一開路支節St1、第一開路支節St2、第二開路支節St3及第二開路支節St4的所述魚骨狀結構皆具有分別垂直於第一傳輸線T1及第二傳輸線T2的一主幹及垂直於主幹的四個分支，第一開路支節St1與第一開路支節St2的主幹的一端連接第一傳輸線T1的主體，另一端則連接四個分支之一者。其中，連接於主幹末端的分支的線寬大於剩餘三個分支的線寬。 FIG. 2 is a schematic diagram of the structure and dimensions of a branch coupler according to an embodiment of the present invention. As shown in FIG. 2 , the length D1 between the input end P1 and the first output end P2 is smaller than the length D2 between the input end P1 and the isolation end P4 . The line width of the first "U"-shaped segment S10 is smaller than the line widths of the first segment S1 and the second segment S2. The herringbone structures of the first open branch St1, the first open branch St2, the second open branch St3, and the second open branch St4 all have a perpendicular to the first transmission line T1 and the second transmission line T2, respectively. The trunk and the four branches perpendicular to the trunk, one end of the trunk of the first open branch St1 and the first open branch St2 is connected to the main body of the first transmission line T1, and the other end is connected to one of the four branches. The line width of the branch connected to the end of the trunk is larger than the line width of the remaining three branches.
根據本發明一實施例，輸入端P1與第一輸出端P2之間的長度D1較佳為4.48mm，輸入端P1與隔離端P4之間的長度D2較佳為5.32mm。介於第一開路支節St1與第一埠之間的線寬及第一開路支節St2與第一輸出端之間的線寬皆為0.46mm。第一開路支節St1、第一開路支節St2、第二開路支節St3及第二開路支節St4的總長度D7為1.67mm，主幹的線寬D8為0.2mm，四個分支的長度D6皆為1.2mm。連接於主幹末端的分支的線寬D10為0.47mm，剩餘三個分支的線寬D9為0.2mm。此外，第一開路支節St1與第一開路支節St2於第一傳輸線T1上的線寬D4皆為0.25mm，而兩者之間的間距D5為1.42mm。第一“U”字型區段S10的開口內部寬度D11為0.2mm、外部寬度D12為0.7mm。值得注意的是，由於第二傳輸線T2的結構等同且對稱於第一傳輸線T1，第二彎折形分支線T4的結構亦等同且對稱於第一折彎形分支線T3，因此第二傳輸線T2的結構尺寸與第一傳輸線T1的結構尺寸相同，第二彎折形分支線T4的結構尺寸與第一折彎形分支線T3的結構尺寸相同，在此即不重複描述以精簡說明。此外，於圖2的實施例中，分支耦合器的面積尺寸為4.48mm×6.24mm=27.9552mm2，而傳統分支耦合器的面積尺 寸為7.4mm×9.14mm=67.636mm2，相較之下本發明的分支耦合器的面積尺寸節省了58.7%的面積。 According to an embodiment of the present invention, the length D1 between the input end P1 and the first output end P2 is preferably 4.48mm, and the length D2 between the input end P1 and the isolation end P4 is preferably 5.32mm. The line width between the first open-circuit branch St1 and the first port and the line width between the first open-circuit branch St2 and the first output end are both 0.46 mm. The total length D7 of the first open-circuit branch St1, the first open-circuit branch St2, the second open-circuit branch St3 and the second open-circuit branch St4 is 1.67 mm, the line width D8 of the trunk is 0.2 mm, and the length D6 of the four branches is Both are 1.2mm. The line width D10 of the branch connected to the end of the trunk is 0.47 mm, and the line width D9 of the remaining three branches is 0.2 mm. In addition, the line widths D4 of the first open branch St1 and the first open branch St2 on the first transmission line T1 are both 0.25 mm, and the distance D5 between them is 1.42 mm. The inner width D11 of the opening of the first "U"-shaped section S10 is 0.2 mm, and the outer width D12 is 0.7 mm. It is worth noting that, since the structure of the second transmission line T2 is identical and symmetrical to the first transmission line T1, the structure of the second bent branch line T4 is also identical and symmetrical to the first bent branch line T3, so the second transmission line T2 The structural dimensions of the first transmission line T1 are the same as those of the first transmission line T1 , and the structural dimensions of the second bent branch line T4 are the same as those of the first bent branch line T3 , and the description is not repeated here to simplify the description. In addition, in the embodiment of FIG. 2 , the area size of the branch coupler is 4.48mm×6.24mm=27.9552mm 2 , while the area size of the conventional branch coupler is 7.4mm×9.14mm=67.636mm 2 , in comparison The area size of the branch coupler of the present invention saves 58.7% of the area.
圖3為根據本發明一實施例所述的分支耦合器的S參數模擬曲線圖。由圖3可知，本發明分支耦合器S11衰減大於10dB的頻段大概為為4.6GHz-6.4GHz，對應中心頻率為5.5GHz。S12，S13在所述頻段具有3dB功率損耗。其中，第一輸出端、第二輸出端、隔離端的參數S22，S33，S44與輸入端S11相似，附圖未列出。根據圖3的內容，相較於傳統分支耦合器，本發明的分支耦合器與傳統分支耦合器的實現效果近似。 FIG. 3 is an S-parameter simulation curve diagram of a branch coupler according to an embodiment of the present invention. As can be seen from FIG. 3 , the frequency band where the attenuation of the branch coupler S11 of the present invention is greater than 10 dB is approximately 4.6 GHz-6.4 GHz, and the corresponding center frequency is 5.5 GHz. S12, S13 have 3dB power loss in the frequency band. The parameters S22, S33, and S44 of the first output end, the second output end, and the isolation end are similar to the input end S11, which are not listed in the drawings. According to the content of FIG. 3 , compared with the conventional branch coupler, the branch coupler of the present invention has a similar realization effect to the conventional branch coupler.
圖4為根據本發明一實施例所述的分支耦合器的第一輸出端P2與第二輸出端P3的輸出相位差異圖。根據圖4中曲線C1可得知，本發明的分支耦合器的第一輸出端P2與第二輸出端P3在頻段4.9GHz-6.2GHz具有較小的輸出相位差異，具體而言，第一輸出端P2與第二輸出端P3的輸出相位差小於10°。 FIG. 4 is a diagram showing the output phase difference between the first output terminal P2 and the second output terminal P3 of the branch coupler according to an embodiment of the present invention. According to the curve C1 in FIG. 4 , it can be known that the first output end P2 and the second output end P3 of the branch coupler of the present invention have a small output phase difference in the frequency band 4.9GHz-6.2GHz. Specifically, the first output The output phase difference between the terminal P2 and the second output terminal P3 is less than 10°.
圖5為根據本發明一實施例所述的分支耦合器的第一輸出端P2與第二輸出端P3的輸出幅值差異圖。根據圖5中曲線C2可得知，本發明的分支耦合器的第一輸出端P2與第二輸出端P3在頻段4.9GHz-6.2GHz具有較小的幅值輸出差異，具體而言，第一輸出端P2與第二輸出端P3的輸出幅值差小於2dB。 FIG. 5 is a diagram showing the difference in output amplitude between the first output terminal P2 and the second output terminal P3 of the branch coupler according to an embodiment of the present invention. According to the curve C2 in FIG. 5, it can be known that the first output end P2 and the second output end P3 of the branch coupler of the present invention have a small amplitude output difference in the frequency band 4.9GHz-6.2GHz. The output amplitude difference between the output end P2 and the second output end P3 is less than 2dB.
綜上所述，根據本發明一些實施例所提出的分支耦合器，通過使用彎折形的傳輸線構成分支耦合器，相較於傳統分支耦合器縮小58.7%的面積。另外，本發明分支耦合器在頻段4.6GHz-6.4GHz具有較好的性能，S11衰減大於10dB，且兩輸出埠的輸出幅值與相位差異均較小。在克服了現有技術佔用PCB面積較大的缺點後，又具有較好的特性，適合應用於移動通信產品中。 To sum up, according to the branch coupler proposed by some embodiments of the present invention, the branch coupler is formed by using a bent-shaped transmission line, and the area is reduced by 58.7% compared with the conventional branch coupler. In addition, the branch coupler of the present invention has better performance in the frequency band of 4.6GHz-6.4GHz, the S11 attenuation is greater than 10dB, and the output amplitude and phase difference of the two output ports are small. After overcoming the disadvantage that the prior art occupies a large area of the PCB, it has better characteristics and is suitable for use in mobile communication products.
綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上該者僅為本發明之較佳實施方式，本發明之範圍並不以上述實施方式為限，舉凡熟悉本案技藝之人士爰依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。 To sum up, the present invention complies with the requirements of an invention patent, and a patent application can be filed in accordance with the law. However, the above are only the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments. Those who are familiar with the techniques of this case may make equivalent modifications or changes according to the spirit of the present invention. Covered in the following patent applications.
Ax1、Ax2:對稱軸 Ax1, Ax2: Symmetry axis
P1:輸入端 P1: input terminal
P2:第一輸出端 P2: The first output terminal
P3:第二輸出端 P3: The second output terminal
P4:隔離端 P4: Isolated end
S1-S6:傳輸線區段 S1-S6: Transmission line segment
St1:第一開路支節 St1: The first open branch
St2:第二開路支節 St2: Second open branch
St3:第三開路支節 St3: The third open branch
St4:第四開路支節 St4: Fourth open branch
T1:第一傳輸線 T1: The first transmission line
T2:第二傳輸線 T2: Second transmission line
T3:第一彎折形分支線 T3: The first bent branch line
T4:第二彎折形分支線 T4: Second bent branch line
Claims (7)
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| TW110117180A TWI768895B (en) | 2021-05-12 | 2021-05-12 | Branch-line coupler |
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| TW202245328A TW202245328A (en) | 2022-11-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5132645A (en) * | 1989-11-15 | 1992-07-21 | Bernd Mayer | Wide-band branch line coupler |
| CN107565198A (en) * | 2016-07-01 | 2018-01-09 | 鸿富锦精密工业（深圳）有限公司 | Branch line coupler |
| CN109524755A (en) * | 2018-11-30 | 2019-03-26 | 安徽四创电子股份有限公司 | A kind of millimere-wave band microminiature branch line coupler |
| TW202019011A (en) * | 2018-11-14 | 2020-05-16 | 新加坡商雲網科技新加坡有限公司 | Branch-line coupler |
-
2021
- 2021-05-12 TW TW110117180A patent/TWI768895B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5132645A (en) * | 1989-11-15 | 1992-07-21 | Bernd Mayer | Wide-band branch line coupler |
| CN107565198A (en) * | 2016-07-01 | 2018-01-09 | 鸿富锦精密工业（深圳）有限公司 | Branch line coupler |
| TW202019011A (en) * | 2018-11-14 | 2020-05-16 | 新加坡商雲網科技新加坡有限公司 | Branch-line coupler |
| CN109524755A (en) * | 2018-11-30 | 2019-03-26 | 安徽四创电子股份有限公司 | A kind of millimere-wave band microminiature branch line coupler |
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