TY - JOUR
T1 - Enhancing frequency-scanning response of leaky-wave antennas using high-impedance surfaces
AU - Garcia-Vigueras, Maria
AU - Luis Gomez-Tornero, Jose
AU - Goussetis, George
AU - Weily, Andrew R.
AU - Guo, Y. Jay
N1 - INSPEC Accession Number: 12403225
PY - 2011
Y1 - 2011
N2 - The use of high-impedance surfaces (HISs) to increase the frequency-scanning sensitivity of hollow leaky-wave antennas (LWAs) is presented. The LWA consists of a hollow rectangular waveguide with one of its narrow walls replaced by a partially reflective surface, and it is loaded with a metallodielectric HIS to increase its beam-scanning response. Theoretical results based on a simple transverse equivalent network illustrate the physical mechanism responsible for the improvement, and they are verified by experiments on a prototype working in the 11-16 GHz band.
AB - The use of high-impedance surfaces (HISs) to increase the frequency-scanning sensitivity of hollow leaky-wave antennas (LWAs) is presented. The LWA consists of a hollow rectangular waveguide with one of its narrow walls replaced by a partially reflective surface, and it is loaded with a metallodielectric HIS to increase its beam-scanning response. Theoretical results based on a simple transverse equivalent network illustrate the physical mechanism responsible for the improvement, and they are verified by experiments on a prototype working in the 11-16 GHz band.
KW - frequency beam scanning
KW - guide
KW - leaky-wave antennas (LWAs)
KW - high-impedance surfaces (HISs)
U2 - 10.1109/LAWP.2011.2107492
DO - 10.1109/LAWP.2011.2107492
M3 - Article
SN - 1536-1225
VL - 10
SP - 7
EP - 10
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
ER -