Modulated strip-line leaky-wave antenna using a printed grating lens and a surface-wave source
- 1 July 2010
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
A planar antenna that utilize surface waves (SWs) for leaky wave (LW) excitation is investigated. Specifically, a surface-wave launcher (SWL) is employed to excite cylindrical SWs which are bound to a grounded dielectric slab (GDS). By the addition of a grid of width-modulated printed strips, a high impedance surface (HIS) can be realized, providing appropriate conditions for LW radiation. A planar metallic grating lens is also included in the design of the antenna to achieve in phase leakage along the aperture. Far field beam pattern results suggest one-sided beam scanning between 22 and 24 GHz with reflection losses below 10 dB and gain values of 8.7 dBi at broadside. Such a printed or planar low-cost and low-profile LWA may be advantageous for radar systems and satellite communications.Keywords
This publication has 6 references indexed in Scilit:
- New leaky-wave antennas using surface-wave launchers and planar metallic grating lensesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2009
- Planar Surface-Wave Sources and Metallic Grating Lenses for Controlled Guided-Wave PropagationIEEE Antennas and Wireless Propagation Letters, 2009
- Controlling the Bandlimits of TE-Surface Wave Propagation Along a Modulated Microstrip-Line-Based High Impedance SurfaceIEEE Transactions on Antennas and Propagation, 2008
- Planar Leaky-Wave Antenna Designs Offering Conical-Sector Beam Scanning and Broadside Radiation Using Surface-Wave LaunchersIEEE Antennas and Wireless Propagation Letters, 2008
- Sector PCS-EBG Antenna for Low-Cost High-Directivity ApplicationsIEEE Antennas and Wireless Propagation Letters, 2007
- Theoretical Considerations in the Optimization of Surface Waves on a Planar StructureIEEE Transactions on Antennas and Propagation, 2004