A co-frequency combiner with a trapezoidal splitter bar 3db bridge
A technology of co-frequency combiner and split rod, applied in circuits, electrical components, waveguide-type devices, etc., can solve the problems of small bridge isolation, inability to meet frequency bands, and high production costs, and achieve increased isolation and coupling coefficient. High, long service life effect
Inactive Publication Date: 2016-05-25
JUANCHENG POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO
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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, the same-frequency combiner with a trapezoidal splitter bar 3dB bridge described in this embodiment includes a housing and a 3dB bridge disposed in the housing 4; the 3dB bridge includes a first A coupling line 1 and a second coupling line 2, the first coupling line 1 includes a ring-shaped first coupling part 11, a first output pin 12 extending obliquely upward from the side of the first coupling part 11, and a first output pin 12 extending from the first The first input pin 13 extending obliquely downward from the other side of the coupling part 11; the free end of the first output pin 12 is provided with a first output terminal 14, and the free end of the first input pin 13 is provided with a first input term...
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The invention discloses a same-frequency combiner of a 3dB electrical bridge with a trapezoid separation rod. Through a first annular coupling part and a second annular coupling part, the annular coupling effect can be greatly improved, coupling coefficients worked out by simulation software are high, coupling frequency can reach to 2950 KHZ, the requirements of a current mainstream LTE technical standard are greatly met, and practicability of the same-frequency combiner is greatly improved. In addition, the same-frequency combiner is simple in structure, not prone to damage and long in service life, and the isolation degree can be greatly increased through the trapezoid separation rod and a circular separation piece.
Description
technical field [0001] The invention relates to the technical field of co-frequency combiners, in particular to a co-frequency combiner with a trapezoidal splitter bar 3dB bridge. 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 wa...
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IPC IPC(8): H01P5/16
Inventor 胡章勇尹洪刚刘义想赵东方徐斌秦朝蒙
Owner JUANCHENG POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO