Switching device of coaxial cable and air microstrip line

A technology of coaxial cable and switching device, which is applied to connecting devices, electrical components, circuits, etc., can solve the problem of low antenna intermodulation pass rate, etc., and achieves the goal of suppressing outer conductor current, reducing third-order intermodulation, and low cost. Effect

Active Publication Date: 2014-02-12
JIANGSU JST RF SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are two problems: (1) Because the current at the transfer point is the largest, third-order intermodulation is easily generated at the contact between the ground block and the reflector, resulting in a low intermodulation pass rate of the entire antenna; (2) The inner conductor and the microstrip are welded, and the microstrip line needs to be welded, and the aluminum microstrip line needs to be electroplated

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  • Switching device of coaxial cable and air microstrip line
  • Switching device of coaxial cable and air microstrip line
  • Switching device of coaxial cable and air microstrip line

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Embodiment Construction

[0014] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0015] The adapter device of the coaxial cable and the air microstrip line of the present invention comprises a reflecting plate 1, an air microstrip line 2, a microstrip open line 4 of an L-shaped 1 / 4 wavelength and a coaxial cable 6, the air The microstrip line 2 and the microstrip open line 4 of L-shaped 1 / 4 wavelength are all fixed on the reflector 1 through an insulating medium pad 7, and are not in direct contact with the reflector 1; the outer conductor 6 of the coaxial cable 6 -2 is welded on the microstrip open line 4 of the L-type 1 / 4 wavelength; the air microstrip line 2 is fixed with a conductive connecting piece 3 by a plastic screw 8, and the connecting piece 3 is connected to the said air microstrip line 2. There is no direct contact between ...

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Abstract

The invention discloses a switching device of a coaxial cable and an air microstrip line, which comprises a reflection plate (1), an air microstrip line (2), a microstrip open-circuited line (4) of 1 / 4 wavelength and a coaxial cable (6), wherein the air microstrip line (2) and the microstrip open-circuited line (4) of 1 / 4 wavelength are fixed on the reflection plate (1) through an insulating medium pad (7); an external conductor (6-2) of the coaxial cable (6) is connected to the microstrip open-circuited line (4) of 1 / 4 wavelength, and an internal conductor (6-1) of the coaxial cable (6) is in coupling connection with the air microstrip line (2). The switching device of a coaxial cable and an air microstrip line provided by the invention has the advantages that an external conductor of a coaxial cable is connected to a microstrip open-circuited line of 1 / 4 wavelength, the microstrip open-circuited line of 1 / 4 wavelength is theoretically equivalent to a short circuit of the external conductor, and the microstrip open-circuited line regulates the stationary wave as well as playing a part in inhibiting the current of the external conductor.

Description

technical field [0001] The invention relates to a switching device for a coaxial cable and an air microstrip line. Background technique [0002] With the rapid development of base station antenna technology, air microstrip technology, due to its good structural consistency, small antenna gain loss and low cost, is more and more applied to the design of base station antennas. At the same time, with the improvement of mobile communication quality requirements, higher requirements are put forward for various technical indicators of base station antennas, and the third-order intermodulation of antennas has gradually become one of the difficulties in antenna design. In the air microstrip antenna design, the signal input can be directly connected to the air microstrip line through the connector for feeding, or the signal can be input through the connector assembly with a coaxial cable. The above two transfer methods are costly and the structure is relatively complicated. . [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/08H01Q1/00H01Q13/08H01Q19/10
Inventor 卜安涛苏学伟林惠帆王攀峰
Owner JIANGSU JST RF SYST
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