Multi-Mode Millimeter-Wave Near-Field Imaging

被引：2

作者：

Hoffmann, Dennis ^{[1
]}

Hesselbarth, Jan ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Radio Frequency Technol, Stuttgart, Germany

来源：

2021 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2021年

关键词：

microwave imaging; near-field; dielectric waveguide; spatial resolution; MICROWAVE;

D O I：

10.1109/IMS19712.2021.9574970

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The use of a higher-order, TM01 mode is proposed for short-distance near-field imaging of planar metal pattern. Using a properly designed multi-mode dielectric probe tip, the conventional TEM-like mode (in two linear polarizations) can be used for sensing, together with the higher-order mode. Experiments, conducted at a frequency of 31 GHz, are showing improved resolution for metallic strips using the higher-order mode. Uniquely, mode coupling can also be used for sensing, as it is demonstrated for the detection of a metal edge.

引用

页码：278 / 281

页数：4

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