An iteratively refined circuital model of CRLH leaky-wave antennas derived from the mushroom structure
2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010
- Fecha: 22 November 2010
- ISBN: 9781424449682
- Source Type: Conference Proceeding
- DOI: 10.1109/APS.2010.5561738
- Document Type: Conference Paper
Metamaterial leaky-wave antennas (LWAs), which operate in their fundamental guided mode (¿ = 0), have grown in popularity thanks to their full-space scanning possibilities . Several technologies can be employed to practically implement this type of antennas, such us microstrip, CPW, CPS or mushroom-like periodically loaded waveguides . In order to analyze these structures, equivalent circuit models may be used . These models are able to accurately compute the propagation constant of the structure under analysis, but have some difficulties to obtain the radiation characteristics. Usually, time-consuming full-wave simulations are required for this last step. In this paper, a novel and efficient modal-based iterative circuital model is presented for the accurate analysis of the complex propagation constant related to mushroom-like CRLH LWAs. © 2010 IEEE.