DNP Develops Thin and Light-Weight Sheet that Selectively Absorbs Radio Waves in 5G Band
Exhibit at 5th. 5G Communication Technology Exhibition
Jun 28, 2022
Tokyo, June 28, Dai Nippon Printing Co., Ltd. (DNP) has developed a thin and light-weight Radio Wave Absorption Sheet capable of the selective absorption of radio waves from specific frequencies in the fifth generation, or 5G, mobile communication system millimeter wave, or 28GHz, and sub-6, or 3.7GHz and 4.5GHz, at the same time as preventing wave leakage and interference. The new product applies DNP proprietary Electron Beam (EB) coating technology, producing the high weather resistance needed for outdoor use. It is also possible to create designs that are compatible with environmental and scenery considerations.
The new product was exhibited at the DNP booth during the 5th. 5G Communication Technology Exhibition at Tokyo from June 29th to July 1st, 2022.
Radio Wave Absorption Sheet with wood grain design sheet for use with millimeter wave and sub-6 band.
[DNP's unique "electromagnetic wave absorbing sheet" development overview]
As the spread of 5G brings with it the promise of ultra-high speed, ultra-low latency, and multiple simultaneous connections, there is a growing need to selectively absorb radio waves of specific frequencies in order to prevent interference between radio waves and leakage from communication areas.The radio wave absorption sheets used to prevent such interference and leakage have the issue of limited installation locations due to restrictions on weight, size, etc.There is also a growing need for designs that can blend in with the surrounding landscape.
To address these issues, DNP has developed a radio wave absorbing sheet that selectively absorbs radio waves of specific frequencies in the millimeter wave and Sub6 bands, which are the 5G frequency bands. By using innovative materials and design, we have achieved a significant reduction in thickness and weight compared to conventional products, and by utilizing DNP's proprietary EB coating technology, we have achieved weather resistance and scratch resistance that allows for outdoor use. The application of decorative designs also gives the sheet a high level of environmental friendliness, which is particularly required indoors.
New Product Features
By applying and developing the microfabrication technology that DNP has cultivated over many years, it is now possible to provide total support from the design to the processing of the Radio Wave Absorption Sheet. The main features of the new product are as follows:
1. Selective Absorption of 5G Frequency Bands
The new product is capable of absorbing decibels levels of -15dB or less for radio waves of a specific frequency in the millimeter wave and sub-6 band that form the 5G band. We can develop and provide products that adjust the frequency band of the radio waves to be absorbed in line with requests from, and applications at, client companies, local governments and other users.
2. Thin and Light-Weight
Compared to conventional sheeting, the new product is extremely thin and lightweight. The millimeter wave band compatible sheet is 0.3 mm thick and weighs 0.5 kg per square meter, while the sub-6 band compatible sheet is 1.6 mm thick and weighs 3 kg per square meter. Due to the thin and light-weight, it can be easily constructed or installed in various places.
3. Harmonizing with the Environment
By using the Radio Wave Absorption Sheet with a variety of DNP designed sheet, such as wood grain, the new product can be installed without impairing the existing spatial design.
Radio Wave Absorption Sheet with wood grain builders fitting sheet.
5th. 5G Communication Technology Exhibition
Event dates: June 29 to July 1, 2022
Hours: 10:00-18:00 (until 17:00 on the last day)
Location: Tokyo Big Sight
DNP booth number: 6-14
Going Forward
DNP is pushing ahead with feasibility tests for the Radio Wave Absorption Sheet aiming for commercialization by 2023.
We will also provide solutions facilitating the building of an optimal radio wave environment for 5G communication without spoiling the scenery, by combining the new product with 5G radio wave control components, such as Film Type Antenna and Reflect Array and design sheet for building materials owned by DNP. In anticipation of the spread of 5G, we will also continue to work on businesses such as the Extended Reality (XR) Communication Business that provides consumers with experience value in both real and virtual spaces, the distribution of 4K and 8K high-definition video, safe autonomous driving, along with remote medical care and telemedicine.
- Company and product names referred to in this release are the trademarks or registered trademarks of their respective owners.
- Listed product specification and service contents are current as of the date of publication. They may be changed at any time without notice.