TY - JOUR
T1 - Microwave power imaging detector based on metamaterial absorber
AU - Alkurt, Fatih Özkan
AU - Altlntaş, Olcay
AU - Baklr, Mehmet
AU - Karaaslan, Muharrem
AU - Ünal, Emin
AU - Karadağ, Faruk
AU - Akgöl, O. uzhan
AU - Sabah, Cumali
N1 - Publisher Copyright:
© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
PY - 2020/8/1
Y1 - 2020/8/1
N2 - Our paper presents the design, fabrication, and characterization of metamaterial absorber-based microwave imaging detector that is operating in industrial, scientific, and medical (ISM) band. The results reveal that the structure has almost perfect absorption at 2.39 GHz in the simulation and 2.51 GHz in the experimental measurement. For energy-harvesting applications, Schottky diodes have been used and 11.8-mV dc voltage across a Schottky diode has been observed with 84.2% dc conversion efficiency in harvesting application. To show the different incident angle imaging, MATS-1000 antenna training kit is used, and different imaging pictures are given, which are obtained by MATLAB with the help of a microcontroller card. Both experimental and simulation study results verify that the microwave detector generates accurate images with negligible distortions. The innovative side of this study when it is compared with similar studies can be sorted as having more dc obtained voltage, incident angle characterization, and operation frequency. Simulated and measurement results show that the proposed structure can effectively be used in the imaging at ISM frequency band, which is the most common frequency band in wireless appliances.
AB - Our paper presents the design, fabrication, and characterization of metamaterial absorber-based microwave imaging detector that is operating in industrial, scientific, and medical (ISM) band. The results reveal that the structure has almost perfect absorption at 2.39 GHz in the simulation and 2.51 GHz in the experimental measurement. For energy-harvesting applications, Schottky diodes have been used and 11.8-mV dc voltage across a Schottky diode has been observed with 84.2% dc conversion efficiency in harvesting application. To show the different incident angle imaging, MATS-1000 antenna training kit is used, and different imaging pictures are given, which are obtained by MATLAB with the help of a microcontroller card. Both experimental and simulation study results verify that the microwave detector generates accurate images with negligible distortions. The innovative side of this study when it is compared with similar studies can be sorted as having more dc obtained voltage, incident angle characterization, and operation frequency. Simulated and measurement results show that the proposed structure can effectively be used in the imaging at ISM frequency band, which is the most common frequency band in wireless appliances.
KW - image detection
KW - metamaterial absorber
KW - microwave power imaging
UR - https://www.scopus.com/pages/publications/85090598147
UR - https://www.scopus.com/pages/publications/85090598147#tab=citedBy
U2 - 10.1117/1.OE.59.8.087104
DO - 10.1117/1.OE.59.8.087104
M3 - Article
AN - SCOPUS:85090598147
SN - 0091-3286
VL - 59
JO - Optical Engineering
JF - Optical Engineering
IS - 8
M1 - 087104
ER -