Light-Weight Wide-Band Metal-Only Reflectarray Antennas
Keywords:
Antenna, ethernet, light-weight, metalonly, reflectarray, wideband, WiMAXAbstract
A new class of metal-only reflectarray antennas (RAs) is reported. The proposed RA is based on a unit-cell constructed from a short-circuited conducting square. This, compared to the previously reported metal-only designs, leads to less weight and fabrication complexity. In addition, bandwidth enhancement can be accomplished by extending the idea to multi-layer unit cells. Gain stability with less than 0.1 dB variation over 1 GHz bandwidth at 12 GHz center frequency is achieved using the proposed two-layer reflector.
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References
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