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A miniaturized electric bridge device suitable for 10mhz‑8ghz

An electric bridge and resistor technology, applied in the field of miniaturized electric bridge devices, can solve the problem that the application frequency of the magnetic loop directional electric bridge of the twisted pair transmission line is difficult to be further increased, and achieves the realization of miniaturized design, reduced device index, and is beneficial to The effect of miniaturization

Inactive Publication Date: 2017-08-29
XIAN UNIV OF SCI & TECH
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  • Description
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Problems solved by technology

[0007] The purpose of the present invention is to provide a miniaturized electric bridge suitable for 10MHz-8GHz, to solve the problem that the application frequency of the twisted-pair transmission line magnetic ring directional bridge in the prior art is difficult to further increase

Method used

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  • A miniaturized electric bridge device suitable for 10mhz‑8ghz
  • A miniaturized electric bridge device suitable for 10mhz‑8ghz
  • A miniaturized electric bridge device suitable for 10mhz‑8ghz

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] The invention discloses a miniaturized electric bridge device suitable for 10MHz-8GHz, which includes an excitation signal input port P1 through which the excitation signal enters the electric bridge. The excitation signal input port P1 is connected to one end of the winding b, that is, the b1 node, and the winding B and winding a form a twisted pair and are wound on the magnetic ring, and winding c is also wound on the magnetic ring.

[0023] The twisted pair and winding c are wound on the magnetic ring, and occupy the position of one side of the magnetic ring respectively. The wound areas do not overlap and do not touch each other, so as to ensure that the impedance characteristics of the transmission line are not greatly affected, and the twisted pair The number of turns of winding c on the magnetic ring is 2, and the outer diameter...

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Abstract

The invention discloses a miniaturized electric bridge device suitable for 10MHz-8GHz, which is characterized in that it includes an excitation signal input port P1, the excitation signal input port P1 is connected to one end of winding b, and winding b and winding a form a twisted pair Wound on the magnetic ring, winding c is also wound on the magnetic ring, the end of winding a and winding c close to the excitation signal input port P1 is connected and grounded, and the other ends of winding b and winding c are connected to resistor R2 and resistor R3 Between, the other end of the resistor R2 is connected to the resistor R1, an isolation port P2 is set between the resistors R1 and R2, the other end of the resistor R1 is connected to the test port P3, and the other end of the winding a is connected between the resistor R1 and the test port P3 between; the invention solves the problem that the application frequency of the existing twisted-pair transmission line magnetic ring directional bridge is difficult to increase.

Description

【Technical field】 [0001] The invention belongs to the field of test instruments, in particular to a miniaturized electric bridge device suitable for 10MHz-8GHz. 【Background technique】 [0002] The vector network analyzer is an important microwave measurement tool, which is widely used in the characteristic measurement of radio frequency microwave devices. Such as: testing of passive components such as attenuators, filters, power splitters and active components such as amplifiers. By transmitting an excitation signal to the device under test, the receiver receives the transmitted signal and the reflected signal to complete the measurement of the device characteristics. These measurement information includes amplitude and phase information, which can be further converted into return loss, transmission gain and insertion loss. In recent years, miniaturized and portable vector network analyzers have been widely used. On the one hand, it is due to the needs of field testing. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 马延军
Owner XIAN UNIV OF SCI & TECH
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