Specific small UWB (Ultra Wide Band) slot antenna for testing breast tumor breast tumor microwaves

Abstract

The invention belongs to the field of biomedicine detection, and relates to a specific small UWB (Ultra Wide Band) slot antenna for testing breast tumor breast tumor microwaves. The slot antenna comprises a slotting earth pole on the back of the antenna; an antenna polaron and a feeding connector are arranged in frontage of the antenna, wherein the antenna polaron is an interdigital feeding polaron, the length L of the interdigital feeding polaron is 12mm, and the width W of the interdigital feeding polaron is 10mm; the distance W1 between two split fingers is 2.2mm, the width W2 of each split finger is 0.7mm, and the length L3 of each split finger is 4.8mm; the feeding connector is a paster type SMP (Symmetric Multi Processor) coaxial connector; the dimensions of the slotting structure of the slotting earth pole are as follows: the width Wslot is 8.7mm, the length Lslot is 2.6mm, and the distance Lshift between a slot and the bottom of the antenna is 5.1mm; and the dimensions of a microstrip line are as follows: the width W3 of the microstrip line is 0.5mm, and the length L2 of the microstrip line is 2.1mm. The antenna has the advantages of small size, wide frequency band, strong directivity, and high directivity gain.

Description

Technical field [0001] The invention belongs to the field of biomedical detection and relates to an antenna for microwave detection. Background technique [0002] Breast cancer is the malignant tumor disease with the highest incidence rate in women, and its mortality rate ranks first in the mortality rate of malignant tumors in women. The diagnosis of early breast tumors is undoubtedly of decisive significance for improving the treatment rate of breast disease and the long-term survival rate of patients. Currently commonly used detection methods for early breast cancer include mammography, ultrasound imaging technology, computed tomography, nuclear magnetic resonance imaging technology, thermal imaging detection, etc., but many methods have certain shortcomings, such as radiation damage to the human body, The imaging contrast is low and the cost is high. The principle of ultra-broadband electromagnetic wave detection of breast cancer is that different biological tissues ha...

AI Technical Summary

Problems solved by technology

Conventional ultra-wideband antennas are usually used to transmit electromagnetic waves into the air. When such antennas are used in tumor detection, they will generate large reflections at the interface between the air and the skin layer, which will reduce the quality of detection.

And usually this type of antenna is large in size, and the size of the breast is relatively small, and the large size antenna is not suitable for breast tumor detection

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