Design of UWB Planar Antenna for Microwave Imaging Systems

A simple design method for an ultra wideband planar monopole antenna is presented. The antenna is to be used in a microwave imaging system for medical applications. The designed antenna has a compact size, with dimension of 28 mm by 28 mm. The measured 10 dB return loss bandwidth of this antenna element is from 3.2 GHz to more than 15 GHz. Its radiation efficiency is higher than 90% over the whole 10 dB return loss bandwidth. The measured time domain response of the antenna indicates the capability of the designed antenna to support distortionless pulse transmission with a high fidelity factor for any angle of orientation.

[1]  Paul M. Meaney,et al.  Nonactive antenna compensation for fixed-array microwave imaging. II. Imaging results , 1999, IEEE Transactions on Medical Imaging.

[2]  Paul M. Meaney,et al.  Enhancing breast tumor detection with near-field imaging , 2002 .

[3]  D. Lamensdorf,et al.  Baseband-pulse-antenna techniques , 1994, IEEE Antennas and Propagation Magazine.

[4]  P. Huynh,et al.  The false-negative mammogram. , 1998, Radiographics : a review publication of the Radiological Society of North America, Inc.

[5]  M. Okoniewski,et al.  Dielectric-filled slotline bowtie antenna for breast cancer detection , 2005 .

[6]  M. Popovic,et al.  Miniaturized microstrip-fed "Dark Eyes" antenna for near-field microwave sensing , 2005, IEEE Antennas and Wireless Propagation Letters.

[7]  Paul M. Meaney,et al.  Nonactive antenna compensation for fixed-array microwave imaging. I. Model development , 1999, IEEE Transactions on Medical Imaging.

[8]  J. Elmore,et al.  Ten-year risk of false positive screening mammograms and clinical breast examinations. , 1998, The New England journal of medicine.

[9]  L.-C. Kuo,et al.  A planar triangular monopole antenna for UWB communication , 2005, IEEE Microwave and Wireless Components Letters.

[10]  Xu Li,et al.  Microwave imaging via space-time beamforming for early detection of breast cancer , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[11]  Jung N. Lee,et al.  A novel CPW‐fed ultra‐wideband antenna design , 2005 .

[12]  A. Taflove,et al.  Three-dimensional FDTD analysis of a pulsed microwave confocal system for breast cancer detection: design of an antenna-array element , 1999 .

[13]  S.C. Hagness,et al.  Numerical and experimental investigation of an ultrawideband ridged pyramidal horn antenna with curved launching plane for pulse radiation , 2003, IEEE Antennas and Wireless Propagation Letters.

[14]  D. W. van der Weide,et al.  Microwave imaging via space-time beamforming: experimental investigation of tumor detection in multilayer breast phantoms , 2004, IEEE Transactions on Microwave Theory and Techniques.