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Broadband high-gain magnetic field annular test antenna based on resonance principle and design method

A technology for testing antennas and design methods, which is applied in the directions of antenna supports/installation devices, measuring electronics, and measuring devices, and can solve problems such as unadjustable test frequency bands

Active Publication Date: 2010-08-04
XIAN KAIRONG ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, in the field of electromagnetic compatibility, the requirements for anti-electromagnetic interference performance of products have become higher and higher. Since the electromagnetic interference radiation frequency band of various electronic products is becoming wider and wider, and the low frequency band is particularly dense, and the current used in this field Most of the magnetic field antennas are narrow-band magnetic field antennas, and the test frequency band cannot be adjusted, so a broadband high-gain loop test antenna that can adjust the test frequency band is required

Method used

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  • Broadband high-gain magnetic field annular test antenna based on resonance principle and design method
  • Broadband high-gain magnetic field annular test antenna based on resonance principle and design method

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Embodiment Construction

[0015] like figure 1 As shown in the schematic diagram of the structure of the loop test antenna, it includes a test handle 1, a resonance control circuit 2, a control panel 3, an antenna radiator 4, an antenna box 5, a positioning rod 6, a positioning screw 7, a limit rod 8, a band switch 9, N-type radio frequency connector 10; the antenna radiator 4 is built in the antenna box 5; the positioning rod 6 is fixed across the antenna box 5 by the positioning screw 7, and one end of the positioning rod 6 is limited by the limit rod 8. The positioning rod 6 distance; the limit rod 8 is connected and fixed with the test handle 1 by the control panel 3, the N-type radio frequency connector 10 and the band switch 9 are embedded on the control panel 3, and are connected with the resonance control circuit 2 inside the control panel 3 .

[0016] The antenna radiator 4 is a plane helical coil with an inner diameter of 169 mm and an outer diameter of 349 mm, and the resonance device is co...

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Abstract

The invention belongs to the technical field of electronic test and measurement and particularly relates to a broadband high-gain magnetic field annular test antenna based on a resonance principle. The broadband high-gain magnetic field annular test antenna based on the resonance principle is characterized by at least comprising a test handle, a resonance control circuit, a control panel, an antenna radiator, an antenna box body, a locating pull rod, a locating screw, a limit lever, a wave band switch and an N-shaped radiofrequency connector, wherein the antenna radiator is arranged in the antenna box body, the locating pull rod bestrides the antenna box body and is fixed by the locating screw, the distance of the locating pull rod is limited by the limit lever at one end of the locating pull rod, the limit lever is connected and fixed with the test handle by the control panel, and the N-shaped radiofrequency connector and the wave band switch are embedded in the control panel. The invention is suitable for shielding efficiency test of a shielding chamber, a shielding square cabin and a cabinet and radiation interference leakage detection test of large-scale electronic equipment and systems.

Description

technical field [0001] The invention belongs to the technical field of electronic testing and measurement, and particularly relates to a broadband high-gain magnetic field loop type test antenna based on the resonance principle and a design method. Background technique [0002] In order to meet the needs of the development of modern electronic technology, the research and development of antennas is mainly developed in the direction of small size, wide frequency band, high gain and adjustable. In recent years, in the field of electromagnetic compatibility, the requirements for the anti-electromagnetic interference performance of products are getting higher and higher. Because the electromagnetic interference radiation frequency band of various electronic products is getting wider and wider, and the low frequency band is particularly dense, and the current used in this field. Most of the magnetic field antennas are narrow-band magnetic field antennas, and the test frequency ba...

Claims

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Application Information

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IPC IPC(8): H01Q1/22H01Q1/36G01R31/00
Inventor 邱扬刘海宁李国正
Owner XIAN KAIRONG ELECTRONICS TECH
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