A metamaterial with applications in broad band antennas used in radio astronomy and satellite communications
Javier De Miguel, Cristian Franceschet, Sabrina Realini, P. Fuerte-Rodríguez · arXiv · 2021
A laboratory-fabricated meta-horn antenna built from manufacturable meta-rings demonstrates an excellent octave-bandwidth feature with improved cross-polarization for radio astronomy and satellite communications.
Plain English summary
Why this matters
Key findings
- A meta-ring-based meta-horn antenna is presented as an innovative, manufacturable metamaterial structure.
- A laboratory-fabricated meta-horn shows an excellent feature over an octave bandwidth.
- Cross-polarization is highlighted as a key improved figure of merit.
- Additional reported metrics include side-lobe level, return-loss, and gain.
Limitations
The abstract does not specify quantitative values, comparison baselines, fabrication tolerances, operating frequency range details beyond “octave bandwidth,” or whether results generalize to other antenna designs or environments.
Publication
- Publisher
- arXiv
- Publication date
- August 12, 2021
- Research type
- Preprint
- arXiv
- 2108.05648
- Access
- open
Tags
More on Electromagnetic Metamaterials
See all →Dorsiventrally Bicolored Leaf‐Inspired Metamaterial Absorbers for Tailorable Electromagnetic Absorption
This research proposes a bioinspired metamaterial that achieves high-performance, tailorable electromagnetic absorption across a broad frequency range.
Tailored Multi‐Scale and Flexible Metamaterial for Broadband Electromagnetic Wave Absorption and Infrared Stealth
This research presents a flexible metamaterial absorber that achieves radar-IR compatible stealth with enhanced electromagnetic wave absorption.
Multi-Resonant Metamaterial Absorber for Electromagnetic Absorption in S-, C-, X-, and Ku- Bands
This study presents a multi-resonant metamaterial absorber achieving over 97% electromagnetic absorption across several microwave frequency bands.
Low-Frequency Broadband Bandgap of a Tunable Metamaterial Beam with Electromagnetic Resonators: Numerical and Experimental Study
This study explores a tunable metamaterial beam that achieves low-frequency broadband bandgap broadening through electromagnetic resonators.
Integrated Electromagnetic Wave Absorption‐Transmission via 3D‐Printed Bilayered Metamaterial
A bilayered 3D-printed metamaterial achieves integrated electromagnetic wave absorption and transmission, enhancing performance for communication systems.
Magnetoresponsive Fiber-Reinforced Periodic Impedance-Gradient Absorber: Design and Microwave Absorption Performance
A novel multilayer metamaterial absorber achieves efficient electromagnetic absorption across multiple bands with enhanced mechanical properties.
Recently published
Latest research →Bio-inspired re-entrant honeycomb metamaterial with programmable dual-plateau mechanical response
A bio-inspired re-entrant honeycomb mechanical metamaterial is described as having a programmable dual-plateau mechanical response.
Modelling the thermo-mechanical responses and shape recovery performance of particle-reinforced shape memory polymer composites in cold and hot programming
A study focused on modeling thermo-mechanical behavior and shape recovery of particle-reinforced shape-memory polymer composites when programmed in cold versus hot conditions.
Functional Shape Recovery Response of Heat-Treated NiTiCu SHAPE Memory Alloy Wire
Heat treatment of NiTiCu shape memory alloy wires enhances their shape recovery response, achieving a high recovery ratio.
A Deformable Robot Based on Shape Memory Alloy and Phase Change Metal
This research presents a novel deformable robot that integrates Shape Memory Alloys and phase change metals for enhanced adaptability and locomotion.