ワイヤレス給電で配線のないデジタル世界を|エイターリンク

FAQ

General

What is Aeterlink's business model?

Our business model is based on license revenue from technology licensing and revenue from sales of our products.

What does AirPlug® mean?

AirPlug® is our term for WPT using microwave and is a trademark we have acquired.
It illustrates the power can be transferred as if there were an electrical power outlet in the air.

Technology

How much is the transmit power?

Our power transmitters output energy less than 1W (EIRP36dBm) based on the approval by Ministry of Internal Affairs and Communications and its ministerial ordinance that is scheduled to be eased in spring 2022.

How much is the received power?

It can be calculated based on the friis transmission formula.

For example, the received power of the antenna is 4.39 [mW] under the following conditions:

Transmission distance: 1m
Frequency: 920MHz
Antenna power: 1W
Transmitting antenna gain: 6dBi
Receiving antenna gain: 2.15dBi

However, these results do not take into account environmental reflections or antenna size. Please contact us for further details.

Is it possible charge multiple devices at the same time?

Yes, it is. Please assume that about 10 to 100 receivers can be connected to one unit, depending on the type of transmitter and the directivity of the transmitting antenna.

How big is the size of the receiving antenna?

It can be adjusted to various sizes.
For example, it can be as small as a grain of rice or as large as A4 size.

What kind of sensors can be used?

Temperature, humidity, illumination, acceleration, CO2, TVOC, and proximity sensors can be used.

What types of environmental sensors can be installed in office buildings, and how often do they communicate every minute?

They can detect temperature, humidity, illumination, CO2, barometric pressure, acceleration, TVOC, etc., and communicate about once a minute.

Laws

Does it have any effect on human body?

Our power transmitters are designed and operated based on the approval by Ministry of Internal Affairs and Communications and its ministerial ordinance that is scheduled to be eased in spring 2022. The approval by the Ministry of Internal Affairs and Communications takes into account the effects on the human body.