Antenna Applications of Negative Refractive Index Transmission‐Line (NRI‐TL) Metamaterials

This chapter contains sections titled: Introduction Planar Negative Refractive Index Transmission‐Line (NRI‐TL) Media NRI‐TL Metamaterial Phase‐Shifting Lines Broadband and Compact NRI‐TL Metamaterial Series Power Dividers NRI‐TL Metamaterial Series‐Fed Antenna Arrays with Reduced Beam Squinting A NRI‐TL Metamaterial Leaky‐Wave Antenna with Reduced Beam Squinting An Electrically Small NRI‐TL Metamaterial Ring Antenna with Vertical Polarization Backward/Forward Leaky‐Wave Antennas Radiating in their Fundamental Spatial Harmonic A Broadband Wilkinson Balun Using Microstrip NRI‐TL Metamaterial Lines A High Directivity Backward NRI‐TL/Microstrip Coupler Summary Acknowledgments References