Integral antenna for wireless amorphous silicon flat detector

Abstract

The invention provides an integral antenna for a wireless amorphous silicon flat detector. The integral antenna comprises a built-in primary radiation unit and a secondary radiation unit which is coupled on the working frequency with the built-in primary radiation unit to form resonance, wherein the secondary radiation unit is formed by a metallic housing including a hollow structure and a slit, and the hollow structure is positioned in the metallic housing at a place under the primary radiation unit and communicate with the slit which cuts open the edge of the metallic housing. Through the hollow structure and the slit in the housing of the wireless amorphous silicon flat detector, the housing of the wireless amorphous silicon flat detector is modified into a secondary radiation unit which becomes a part of the antenna. The metallic housing of a radiation area is not fully hollowed, so that the strength and appearance of the metallic housing are not affected, and attenuation of antenna radiation signals by the metallic housing can be prevented. The secondary radiation unit and the built-in primary radiation unit form an integral antenna, thereby ensuring good radiation efficiency.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to an integral antenna of a wireless amorphous silicon flat panel detector. Background technique [0002] The amorphous silicon flat panel detector uses X-rays to irradiate the surface of the scintillator to generate visible light photons, and then the photosensitive diode converts the visible light photons into a corresponding number of electrons, scans and reads through the thin-film transistor drive circuit, and converts the output signal by the analog-to-digital converter It is a digital signal and transmitted to the workstation platform. With the widespread use of wireless communication technology, it has become a trend to replace traditional wired communication (Gigabit Ethernet, parallel bus, etc.) with wireless communication. Wireless communication has two advantages over wired communication: 1. In outdoor occasions where mobile devices are required, the use of cables limit...

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Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an integral antenna for a wireless amorphous silicon flat panel detector, which is used to solve the problem of radiation to the antenna due to the fact that the outer shell material of the detector is metal in the prior art. The wave has a strong absorption capacity, which affects the radiation of the antenna; and in order to prevent the radiation of the antenna from being affected by the metal casing, the influence of the metal casing on the antenna radiation caused by digging holes on the surface of the metal casing cannot be completely eliminated. And the problem that the strength of the metal shell member will be weakened

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