3 dB electric bridge with mutual interference portions
A technology of electric bridge and coupling part, which is applied in the field of co-frequency combiner accessories, can solve the problems of small bridge isolation, cannot meet the frequency band, and high production cost, and achieve the advantages of increased isolation, high coupling coefficient, and long service life Effect
Active Publication Date: 2014-07-02
NANTONG AORUN BUILDING MATERIAL TECH
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Problems solved by technology
[0002] In the same-frequency combiner, the main component is the 3dB bridge. The 3dB bridge is an electrical device that couples two signals of the same frequency into one output signal; it requires high coupling, precision, and wide frequency band. ;It is widely used in the communication industry. Among them, in the new standard LTE of the communication industry, the frequency band required by the LTE standard is 2570MHz-2750MHz. In the same-frequency combiner currently on the market, the 3dB bridge used generally couples the frequency The width is 600MHz-2400MHz, which cannot meet the frequency band required by the new LTE standard
In addition, in order to achieve the purpose of broadband, the 3dB on the market currently uses different coupling lines, resulting in waste of molds, so it has the disadvantage of high production costs; and the current bridge isolation on the market is small
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.
[0027] Such as Figure 1 to Figure 6 As shown, a 3dB bridge with mutual interference described in this embodiment includes a first coupled line 1 and a second coupled line 2, and the first coupled line 1 includes a ring-shaped first coupled portion 11. The first output pin 12 extending obliquely upward from one side of the first coupling part 11, and the first input pin 13 extending obliquely downward from the other side of the first coupling part 11; the first output pin 12 The first output end 14 is set at the free end, and the first input end is set at the free end of the first input pin 13; the second coupling line 2 includes an annular second coupling portion 21, inclined from the second coupling portion 21 side The second output pin 22 extending upwar...
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The invention discloses a 3 dB electric bridge with mutual interference portions. Due to the arrangement of a first annular coupling portion and a second annular coupling portion, the annular coupling effect can be greatly improved, the coupling coefficient calculated through simulation software is high, the coupling efficiency can reach 2950 KHz, the requirement for existing mainstream LTE technical standards is greatly met, the practicability is greatly improved, in addition, the 3 dB electric bridge is simple in structure, not prone to damage and long in service life, and the isolation degree is greatly increased due to the arrangement of a first disengaging lever, a second disengaging lever and the extending first and second mutual interference portions.
Description
technical field [0001] The invention relates to the technical field of co-frequency combiner accessories, in particular to a 3dB electric bridge with a mutual interference part. Background technique [0002] In the same-frequency combiner, the main component is the 3dB bridge. The 3dB bridge is an electrical device that couples two signals of the same frequency into one output signal; it requires high coupling, precision, and wide frequency band. ;It is widely used in the communication industry. Among them, in the new standard LTE of the communication industry, the frequency band required by the LTE standard is 2570MHz-2750MHz. In the same-frequency combiner currently on the market, the 3dB bridge used generally couples the frequency The width is 600MHz-2400MHz, which cannot meet the frequency band required by the new LTE standard. In addition, in order to achieve the purpose of broadband, the 3dB on the market currently uses different coupling line forms, resulting in wast...
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IPC IPC(8): H01P5/16
Inventor 吴俊伟
Owner NANTONG AORUN BUILDING MATERIAL TECH