Abstract
In this letter, we present a proof-of-concept study of a 1-bit wideband reconfigurable intelligent surface (RIS) using planar tightly coupled dipoles (PTCDs). The PTCD RIS has a planar configuration with a single dielectric layer bonded to a ground plane and is fabricated using cost-effective printed circuit board (PCB) technology. Each RIS unit element achieves binary phase shifting by altering the polarization of the reflected wave by 180°. Cosimulation of the switch model with the RIS unit cell verifies the performance of the RIS. Passive prototypes are fabricated to demonstrate the concept, achieving a 3 dB gain bandwidth of 27.4% at the center frequency of 102 GHz, validated through simulations and measurements. Analytical calculations of the RIS response show good agreement with the simulated results.
Original language | English |
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Pages (from-to) | 3659-3663 |
Number of pages | 5 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 23 |
Issue number | 11 |
DOIs | |
Publication status | E-pub ahead of print - 6 Aug 2024 |
Keywords
- Antennas
- Capacitance
- Dipole
- Prototypes
- RIS
- Radio frequency
- Reconfigurable intelligent surfaces
- Reflectarray
- Substrates
- Switches
- Wideband
- reflectarray
- wideband
- dipole
- reconfigurable intelligent surface (RIS)