TY - JOUR
T1 - K-band varactor diode-tuned elliptical slot antenna for wideband imaging
AU - Kharkovsky, Sergey
AU - Ghasr, Mohammad Tayeb
AU - Abou-Khousa, Mohamed A.
AU - Zoughi, Reza
PY - 2011
Y1 - 2011
N2 - Small resonant elliptical slot antennas have shown great potential as imaging array elements at microwave frequencies. For high-resolution 3D imaging applications it is desirable to extend the operational frequency bandwidth of these elements. One way to achieve this is by loading the slot with a varactor diode, and electronically tuning its resonant frequency. This communication presents the design, analysis, and implementation of a varactor diode-tuned elliptical slot antenna at K-band (18 GHz-26.5 GHz). The slot antenna is then used to produce single-frequency and wideband multi-frequency synthetic aperture radar (SAR) images of two targets located at different distances to show the efficacy of using this slot for wideband imaging.
AB - Small resonant elliptical slot antennas have shown great potential as imaging array elements at microwave frequencies. For high-resolution 3D imaging applications it is desirable to extend the operational frequency bandwidth of these elements. One way to achieve this is by loading the slot with a varactor diode, and electronically tuning its resonant frequency. This communication presents the design, analysis, and implementation of a varactor diode-tuned elliptical slot antenna at K-band (18 GHz-26.5 GHz). The slot antenna is then used to produce single-frequency and wideband multi-frequency synthetic aperture radar (SAR) images of two targets located at different distances to show the efficacy of using this slot for wideband imaging.
UR - http://handle.uws.edu.au:8081/1959.7/552352
U2 - 10.1109/TAP.2011.2164208
DO - 10.1109/TAP.2011.2164208
M3 - Article
SN - 0018-926X
VL - 59
SP - 4325
EP - 4328
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 11
ER -