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.
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Garcia-Vigueras, M., Gomez-Tornero, J. L., Goussetis, G., Weily, A. R., & Guo, R. (2011). Enhancing Frequency-Scanning Response of Leaky-Wave Antennas Using High-Impedance Surfaces. IEEE Antennas and Wireless Propagation Letters, 10, 7-10. . https://doi.org/10.1109/LAWP.2011.2107492