Nippon Electric Glass Design New Products, Expanding 5G Wireless Communication Area

Nippon Electric Glass Co., Ltd., headquartered in Otsu, Shiga Prefecture, Japan, has developed a transparent antenna, composed of a glass substrate, and a repeater, which uses radio wave lenses and does not require a power supply, for 5G millimeter wave wireless communication technology. These products will be exhibited at the fifth 5G Technology Expo to be held at Tokyo Big Sight in June 29 to July 1, 2022.

5G uses radio waves from two frequency bands, Sub-6 (under 6 GHz) and millimeter waves (28 GHz). To achieve high-speed communication, it is necessary to use millimeter wave band, which can secure large bandwidth. However, millimeter waves are significantly attenuated in the atmosphere. Due to their high propagation linearity, they do not diffract behind obstacles. To cover a large area, a mechanism to solve these problems is needed.

The newly developed transparent antenna has a special antenna pattern on a glass substrate, whose dielectric constant (4.0) and loss tangent (0.002) are the smallest in the world. This is a very efficient transparent antenna. The size of glass substrates can be increased, allowing multiple products to be made from a single substrate. This helps improve antenna productivity and allows the formation of antennas for multiple bands on a single substrate. By making the antenna transparent, antenna functionality can be added without spoiling the design and landscape of an installation location. The antenna can be installed in various places, such as windows, walls, screens and vehicles.

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The repeater, which is the other newly developed product, consists of two radio wave lenses and a waveguide. It receives and retransmits radio waves and changes the direction of radio waves without power supply even in circumstances where radio waves are blocked by walls and glass. By changing the shape of the lens, radio waves can be transmitted in a certain direction or over a wide range. The lens is not subject to deterioration caused by ultraviolet rays because it is made of glass. It can be used stably for a long time in various places, both indoors and outdoors.

The Company will contribute to the expansion and diffusion of the use of millimeter radio waves by commercializing the two newly developed products.

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