High-Gain Antenna Design for Microwave Imaging Detection of Abnormal Tissue

• Main Authors: Ya-Ting Pan, 潘亞婷
• Other Authors: Shun-Yun Lin
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/db4snq

碩士 === 正修科技大學 === 電子工程研究所 === 102 === This thesis proposes the high-gain antenna design for microwave detection of non-normal tissue. The first is an ultra-wideband planar dipole antenna with symmetrical structure. This design has a directional radiation to achieve 6 dBi antenna gain. Instead of the complicated feeding network, only simple parameter adjustments are needed to achieve ultra-wide operation bandwidth of 3.1 ~ 10.6 GHz. The second design is a planar dipole antenna with band-notched function for ultra-wideband operation. We add one pair of interference elements on the first antenna structure. That element is not only introduces a mismatch between the input port and the antenna, but also cancel the radiating field over 5 ~ 6 GHz. A multiple-input multi-output antenna with ultra-wideband operation to detect abnormal tissue is also proposed. By using the design, the early-stage scan and alignment of abnormal tissue can be obtained.