Electronic calibration part based on single-pole double-throw switch cascade

A single-pole double-throw switch and electronic calibration device technology, which is used in the measurement of electrical variables, measurement devices, instruments, etc., can solve the problems of high power consumption, poor linearity, and large size of GaAsFET switches, achieve superior performance, and improve signal interference. , the effect of small size

Active Publication Date: 2020-02-11
ZHONGBEI UNIV
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  • Description
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Problems solved by technology

However, GaAs FET switches have problems such as high

Method used

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  • Electronic calibration part based on single-pole double-throw switch cascade
  • Electronic calibration part based on single-pole double-throw switch cascade
  • Electronic calibration part based on single-pole double-throw switch cascade

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[0038] Example

[0039] Figure 5 It is the straight-through insertion loss of the calibration component port one and the calibration component port two of the present invention. It can be seen from the figure that the straight-through insertion loss of the electronic calibration component is about 0.28dB in the frequency range of 0-20Ghz.

[0040] Image 6 It is the return loss of the calibration element of the present invention in the short-circuit state. It can be seen from the figure that the return loss of the electronic calibration element in the frequency range of 0-20 GHz is about 0.18 dB.

[0041] Figure 7 This is the return loss of the calibration element of the present invention when it is in an open state. It can be seen from the figure that the return loss of the electronic calibration element in the frequency range of 0-20Ghz is about 0.034dB.

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Abstract

The invention, which belongs to the technical field of electronic calibration parts, particularly relates to an electronic calibration part based on single-pole double-throw switch cascading. The electronic calibration part comprises a substrate. A microwave transmission assembly is arranged on the surface of the substrate; a load of 50 ohm/75 ohm is arranged on the surface of the substrate; and the microwave transmission assembly is connected with the load of 50 ohm/75 ohm. The microwave transmission assembly includes signal line units which are symmetrically arranged, ground wire units arranged on the peripheral sides of the signal line units, and driving electrodes arranged below switch structures connected with the signal line units. The electronic calibration part has advantages of simple structure, small size, low direct insertion loss, excellent performance of each calibration state and the like. From the perspective of microwave transmission, the radio frequency MEMS single-pole double-throw switch network is more efficient, the signal interference of a single branch is improved, and the transmission performance among the branches of the switch is improved. The electronic calibration part is used for accurate calibration of a vector network analyzer.

Description

technical field [0001] The invention belongs to the technical field of electronic calibration parts, and in particular relates to an electronic calibration part based on cascaded single-pole double-throw switches. Background technique [0002] As an important device for vector network analyzer calibration, electronic calibration components affect the performance of microwave circuit testing. Compared with traditional calibration parts, it has excellent advantages such as high frequency, low loss, small size, long life, and easy integration. It is of great significance to high-speed wireless communication systems. [0003] Calibration parts can be divided into mechanical calibration parts and electronic calibration parts according to their calibration methods. The mechanical calibration parts are manually calibrated by sequentially connecting to the vector network analyzer. During the calibration process, the technical requirements of the operator are high and repeatability...

Claims

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Application Information

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IPC IPC(8): G01R35/00
CPCG01R35/007
Inventor 吴倩楠王姗姗李孟委李强韩路路范丽娜
Owner ZHONGBEI UNIV
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