5G 4G 3G M2M and IoT antenna News
Wireless power transfer March 26,2019.

Wireless power transfer

Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, a transmitter device, driven by electric power from a power source, generates a time-varying electromagnetic field, which transmits power across space to a receiver device, which extracts power from the field and supplies it to an electrical load. The technology of the wireless power transmission can eliminate the use of the wires and batteries, thus increasing the mobility, convenience, and safety of an electronic device for all users.Wireless power transfer is useful to power electrical devices where interconnecting wires are inconvenient, hazardous, or are not possible.

Wireless power techniques mainly fall into two categories, near field and far-field. In near field or non-radiative techniques, power is transferred over short distances by magnetic fields using inductive coupling between coils of wire, or by electric fieldsusing capacitive coupling between metal electrodes. Inductive coupling is the most widely used wireless technology; its applications include charging handheld devices like phones and electric toothbrushes, RFID tags, and wirelessly charging or continuous wireless power transfer in implantable medical devices like artificial cardiac pacemakers, or electric vehicles.

In far-field or radiative techniques, also called power beaming, power is transferred by beams of electromagnetic radiation, like microwaves or laser beams. These techniques can transport energy longer distances but must be aimed at the receiver. Proposed applications for this type are solar power satellites, and wireless powered drone aircraft.

An important issue associated with all wireless power systems is limiting the exposure of people and other living things to potentially injurious electromagnetic fields.

Wellhope Wireless manufacture based in 4G; MIMO;GPS Dielectric Antenna;GSM;3G;Wlan;LTE antenna and RF pigtail cable; more question or inquire feel free to sent us email; wh@wellhope-wireless.com.

                                                                                                          Write By  WHWIRELESS

Get In Touch
  • Wellhope wireless Communication equipment Ltd(China):

    No.8, Bidi Road Xinan Street SanShui District FoShan City, Guangdong , China

  • Have a Questions? Call Us

    Tel : 0086 757 87722921

  • Contact With Us

    Email : wh@whwireless.com

    Email : kinlu@whwireless.com

    Whatsapp : 008613710314921

Follow Us :

Facebook Twitter Linkedin Youtube TikTok VK
Send a Message
welcome to Wellhope Wireless

Online Service

Home

Products

News

contact