TY - JOUR
T1 - Wideband Substrate-Integrated Cavity-Backed Elliptical Slot for Microwave Synthetic Aperture Imaging
AU - Xingyu, Xie
AU - Abou-Khousa, Mohamed A.
N1 - Funding Information:
Manuscript received March 12, 2019; accepted April 17, 2019. Date of publication May 3, 2019; date of current version June 7, 2019. This work was supported by the Khalifa University of Science and Technology, Abu-Dhabi, United Arab Emirates, under Award FSU-2018-16. The Associate Editor coordinating the review process was Chao Tan. (Corresponding author: Mohamed A. Abou-Khousa.) The authors are with the Department of Electrical Engineering and Computer Science, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 1963-2012 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - Resonant elliptical slot antennas with waveguide feeds were successfully used to implement the microwave imaging systems in the past. For wideband imaging, these slots required tuning circuit components to be incorporated in the array. The bulkiness of the previous feeds and the additional tuning circuits render realizing wideband large imaging arrays practically prohibitive. In this paper, the feeding and bandwidth constrains of the previous elliptical slot designs are addressed. Specifically, a unidirectional wideband substrate-integrated cavity-backed elliptical slot antenna is introduced for imaging applications in the K-band frequency range (18-26.5 GHz). The proposed slot design and measurement results are presented herein. Its efficacy for imaging applications is demonstrated via synthetic aperture imaging.
AB - Resonant elliptical slot antennas with waveguide feeds were successfully used to implement the microwave imaging systems in the past. For wideband imaging, these slots required tuning circuit components to be incorporated in the array. The bulkiness of the previous feeds and the additional tuning circuits render realizing wideband large imaging arrays practically prohibitive. In this paper, the feeding and bandwidth constrains of the previous elliptical slot designs are addressed. Specifically, a unidirectional wideband substrate-integrated cavity-backed elliptical slot antenna is introduced for imaging applications in the K-band frequency range (18-26.5 GHz). The proposed slot design and measurement results are presented herein. Its efficacy for imaging applications is demonstrated via synthetic aperture imaging.
KW - elliptical slot antenna
KW - Microwave imaging
KW - synthetic aperture imaging
UR - http://www.scopus.com/inward/record.url?scp=85067124589&partnerID=8YFLogxK
U2 - 10.1109/TIM.2019.2914709
DO - 10.1109/TIM.2019.2914709
M3 - Article
AN - SCOPUS:85067124589
SN - 0018-9456
VL - 68
SP - 2665
EP - 2667
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
IS - 7
M1 - 8705385
ER -