• Liquid-crystal RIS with ultra-low 2 W power consumption
• Electronically steerable beam at arbitrary angles
• Micro-scale metasurface with 33,154 cells delivers 2× efficiency
• Large surface boosts total gain up to 70 dB for stronger signals
• Supports FR2 n257 and n258 bands
• Dual linear polarization enhances signal stability and reliability
YTTEK EcoRIS is a 24-inch liquid-crystal Reconfigurable Intelligent Surface (RIS) with ultra-low 2 W power consumption. It allows real-time adjustment of beam direction and reflection angle, making RIS deployment more flexible and efficient. Supporting n257 and n258 bands, EcoRIS helps extend 5G mmWave coverage and enhance signal performance, while paving the way for future 6G research
In strategic collaboration with AUO, YTTEK’s EcoRIS integrates YTTEK’s mmWave expertise with AUO’s proven liquid crystal panel technology to deliver exceptional performance and stability.
EcoRIS’s liquid crystal-based design consumes just 2 W—up to 25 times less power than other RIS solutions using PIN diodes or varactors that often require up to 50 W of power at the same scale. This exceptional efficiency enables 5G mmWave service providers to significantly cut energy costs and deploy more sustainable, energy-efficient networks.
Powered by liquid crystal technology, which can individually control each unit cell, EcoRIS enables electronic beam steering at arbitrary angles within ±60° in both azimuth and elevation—allowing signal reflection toward designated directions. An intuitive GUI offers seamless control and configuration.
EcoRIS supports dual linear polarization, enhancing compatibility with various incident signal orientations. This ensures more robust reflections and stable signal performance, especially in environments with arbitrarily oriented linear polarization, such as rotating devices or mobile terminals.
EcoRIS supports 5G mmWave applications with two frequency versions: n257 and n258.The n257 version is deployed in regions including the USA, Japan, and South Korea, while the n258 version targets Europe, supporting private 5G networks and early-stage trials. With high-speed wireless connectivity and future-ready flexibility, EcoRIS is ideal for research, development, and testing of next-generation 6G technology.
Built on micro-scale metasurface technology, EcoRIS integrates 33,154 unit cells across a 520 mm × 300 mm surface. Each unit cell measures approximately λ/5 at n257 frequencies (26.5–29.5 GHz) and can control the phase independently, enabling precise beamforming, reduced sidelobe radiation, and enhanced spatial resolution, while maximally concentrating the signal energy from the large-area metasurface.
Addresses mmWave signal blockage and fading in industrial environments, while significantly reducing deployment costs and power consumption when compared to adding small cells or repeaters.
EcoRIS can be strategically installed on facades or lamp posts to reflect and redirect signals into coverage dead zones—effectively addressing Non-Line-of-Sight (NLoS) challenges without the need for dense small cell deployment, which often leads to high costs and power consumption.
Place EcoRIS indoors to reflect signals into areas blocked from direct transmission. By strategically installing RIS panels on walls or ceilings, coverage gaps can be effectively filled without the need for repeaters or increased transmit power.
Item |
YTRS026GL00
|
YTRS028GL00
|
| Operation frequency | 25 – 27.5 GHz | 27 – 29.5 GHz |
| Operation bandwidth | 2.5 GHz | 2.5 GHz |
| Number of unit cells | 33,154 | 33,154 |
| Spacing | ≈λ/5 | ≈λ/5 |
| Polarization | Dual (Linear) | Dual (Linear) |
| Tunable phase range | 120 – 240 deg | 120 – 240 deg |
| Phase resolution | 8-bit (non-linear) | 8-bit (non-linear) |
| Total gain | 67 dB (typ.) | 70 dB (typ.) |
| DC input power | 12 VDC | 12 VDC |
| Power consumption | 2 W (typ.) | 2 W (typ.) |
| Control base | USB-A | USB-A |
| Dimensions | 546 × 327 × 38.5 mm | 546 × 327 × 38.5 mm |
| Storage temperature | –20 °C to +60 °C | –20 °C to +60 °C |
