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Broadband continuous-conductor coaxial fixture for material shielding effectiveness testing

A technology of shielding effectiveness and coaxial cable, which is applied in the field of broadband continuous conductor coaxial cable fixture, can solve the problems of not meeting the electromagnetic pulse shielding effectiveness test of materials, insufficient bandwidth, etc., and achieve the optimization of size and installation position, shorten the length, reduce the small contact resistance as well as the effect of

Inactive Publication Date: 2014-07-16
PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a coaxial fixture for material shielding effectiveness testing, which solves the problem that the existing material shielding effectiveness testing device has insufficient bandwidth and cannot meet the electromagnetic pulse shielding effectiveness test of materials

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  • Broadband continuous-conductor coaxial fixture for material shielding effectiveness testing
  • Broadband continuous-conductor coaxial fixture for material shielding effectiveness testing
  • Broadband continuous-conductor coaxial fixture for material shielding effectiveness testing

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Embodiment Construction

[0019] figure 1 It is the assembly drawing of the broadband continuous conductor coaxial cable fixture of the present invention, which is composed of an outer conductor shell composed of outer shells (1, 2, 3), two supporting media (4), and an inner conductor (5, 6, 7) composed of Inner conductor composition. The two ends of the present invention are left with the mounting base of the N-type coaxial connector, which is connected with other testing equipment.

[0020] Figure 9 The material shielding effectiveness frequency domain testing system composed of the attenuator (8), the device (9) of the present invention and the vector network analyzer (10) can be used to evaluate the frequency domain shielding effectiveness of the material in the range of 0-10GHz. First, use a vector network analyzer to calibrate the coaxial cable fixture without shielding material, deduct the attenuation of attenuators, cables, connectors and other devices, and then load the shielding material t...

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Abstract

The invention relates to a fixture for material shielding effectiveness testing, in particular to a broadband continuous-conductor coaxial fixture (figure 1) which is designed and manufactured in a ladder transition mode. The broadband continuous-conductor coaxial fixture for material shielding effectiveness testing solves the technical problems that an existing material shielding effectiveness testing device is deficient in broadband and can not meet material electromagnetic pulse shielding effectiveness testing. To solve the technical problems, the fixture is made of brass, a teflon circular ring serves as the supporting medium of an inner conductor, the ladder transition mode is adopted in discontinuous positions, and the continuous-conductor circular coaxial fixture is manufactured. The broadband continuous-conductor coaxial fixture is matched with a vector network analyzer to be used for frequency domain shielding effectiveness testing of materials. The broadband continuous-conductor coaxial line fixture is matched with a pulse signal source, a broadband oscilloscope, an attenuator and other time domain testing systems for building material shielding effectiveness testing and can be used for electromagnetic pulse shielding effectiveness testing of the materials.

Description

Technical field [0001] The invention relates to a fixture for material shielding effectiveness testing, in particular, a broadband continuous conductor coaxial line fixture using step transition is designed and manufactured. Background technique [0002] Electromagnetic pulse is a kind of transient signal with broadband and high field strength, and its mechanism of action on various shielding materials is very complex. Only using frequency domain test cannot meet the research needs of electromagnetic pulse shielding effectiveness (SE) of materials. Most of the time-domain test methods for shielding effectiveness of materials are based on the existing standards GJB6190-2008 and IEC61587-3. The measurement is a weak signal measurement in a strong electromagnetic pulse environment, which will inevitably affect the bandwidth and dynamics of the test system. The range is in high demand. [0003] The PLA University of Science and Technology in China has successfully developed a s...

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Application Information

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IPC IPC(8): G01R1/04G01R31/00
Inventor 陈永光魏明陈翔范丽思张希军纪志强胡小锋
Owner PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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