Microwave Resonant Out-of-Plane Fed Elliptical Slot Antenna for Imaging Applications
Development of an effective microwave antenna is important issue for nondestructive sensing and imaging applications. Recently a one-shot, rapid and portable microwave imaging system with a PIN diode-loaded resonant elliptical slot has been developed. In this paper a new approach for feeding a resonant slot used in such a systems is considered. It includes coupling the transmitted and received signals into the slot using out-of-plane (perpendicular) microstrip feed. Three feeds are considered, namely; a 90°-bent microstrip-line feed, a microstrip line proximity feed and a direct microstrip line connection to the slot load. The simulation and measured results show that the antenna with the 90° bent microstrip-line feed demonstrates the best radiation and modulation efficiencies.
S. Kharkovsky et al., "Microwave Resonant Out-of-Plane Fed Elliptical Slot Antenna for Imaging Applications," Proceedings of the IEEE International Instrumentation and Measurement Technology Conference (2011, Binjiang, Hangzhou, China), pp. 389-392, Institute of Electrical and Electronics Engineers (IEEE), May 2011.
The definitive version is available at https://doi.org/10.1109/IMTC.2011.5944162
IEEE International Instrumentation and Measurement Technology Conference (2011: May 10-12, Binjiang, Hangzhou, China)
Electrical and Computer Engineering
Keywords and Phrases
Imaging; Modulated Scattered Technique; Perpendicular Microstrip Feed; Resonant Slot; Sensing; Imaging Applications; Measured Results; Microstrip Feed; Microwave Imaging Systems; Modulation Efficiency; Nondestructive Sensing; Out-Of-Plane; Received Signals; Antenna Arrays; Imaging Systems; Instruments; Measurement Theory; Microstrip Lines; Microwave Antennas; Microwave Devices; Semiconductor Diodes
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