Advantages of Metamaterial antenna | disadvantages of Metamaterial antenna
This page covers advantages and disadvantages of Metamaterial antenna. It mentions Metamaterial antenna advantages or benefits and Metamaterial antenna disadvantages or drawbacks.
What is Metamaterial antenna?
Introduction:
• They are composite materials which have material properties not commonly found in ordinary materials.
• Metamaterials can be characterized based on Maxwell equations.
• They are categorized into two main types viz. resonant metamaterials and nonresonant metamaterials.
The figure-1 depicts mTenna™ series of metamaterial antennas from KYMETA Corporation, Washington, USA. It uses metasurface in a glass structure. It uses thin structure with tunable metamaterial elements to create holographic beam. Refer metamaterials >> for properties and process of realization.
Benefits or advantages of Metamaterial antenna
Following are the benefits or advantages of Metamaterial antenna:
➨Metamaterial antenna design has size five times smaller with wider bandwidth.
➨It does not require active phase shifters or amplifiers unlike
traditional phased array antenna.
➨It offers wide angle scanning and excellent beam performance.
➨It offers electronically controlled pointing and polarization.
➨It consumes very low power.
➨Antennas are flat, light in weight and small in size.
➨It uses software to steer instead of mechanical parts.
➨It is compatible for planar integration with other components.
Drawbacks or disadvantages of Metamaterial antenna
Following are the limitations and not the drawbacks or disadvantages of Metamaterial antenna:
➨It is difficult to manufacture metamaterial based antennas in large quantities.
➨It works for limited range of wavelengths.
➨The shape of the antenna can not be changed during operation.
➨They are lossy.
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