Reconfigurable Split-Ring Resonators Using Pneumatic Levitation System
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Publication Type:
- Journal Article
- IEEE Transactions on Antennas and Propagation, 2018, 66, (2), pp. 763-770
- Issue Date:
|Reconfigurable split ring resonators using pneumatic levitation system.pdf||Published version||1.99 MB|
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In this paper, a pneumatic levitation system is proposed to provide a contactless and metal free platform for dynamically altering the structural arrangement of split-ring resonators in an incident electromagnetic wave. One split ring is placed on a pneumatically levitated platform controlled by different levels of air pressure, and another identical but static split ring is placed underneath to form a broadside coupled arrangement. The proposed pneumatic levitation system has the capability to precisely control the relative orientation of the split ring to the desired rotational angle for on-demand reconfigurability without a sophisticated electrical or mechanical structure. In addition to the rotational angle, the separation between two SRRs can also be reliably controlled by adjusting the pneumatic pressure. The combination of both of these controls enables a large frequency configuration range for broadside coupled SRRs. The corresponding frequency tunability with a 35% bandwidth is validated by both simulations and measurements.
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