Wireless Transmission of Electrical Power Overview of Recent Research & Development
---
paper_title: Status of international experimentation in wireless power transmission

paper_content:

An overall view of past, present and proposed wireless power transmission projects is presented. Activities in the United States, Canada, France, the former Soviet Union and Japan are highlighted. The recent Japan-U.S. space to space wireless power transmission demonstration ISY-METS is described. Japan's recent feasibility study for large-scale space solar power transmission for terrestrial use is examined. In particular, proposals for utility experimentation and the use of wireless power transmission for telecommunications platforms are discussed.
---

Title: Wireless Transmission of Electrical Power Overview of Recent Research & Development

Section 1: INTRODUCTION
Description 1: This section provides an overview of the historical context and modern challenges associated with wireless power transmission.

Section 2: LITERATURE SURVEY
Description 2: This section discusses key milestones and historical developments in the field of wireless power transmission, starting from the predictions of James C. Maxwell to various notable advancements.

Section 3: Induction
Description 3: This section explains the principle of mutual induction between coils and how it can be used for wireless power transfer without physical connections.

Section 4: Electromagnetic Transmission
Description 4: This section details how electromagnetic waves, such as laser beams, can be used to transfer power wirelessly to a receiving target.

Section 5: Evanescent Wave Coupling
Description 5: This section covers the concept of using non-radiative electromagnetic energy resonant tunneling for wireless power transfer, developed by researchers at MIT.

Section 6: Electrodynamic Induction
Description 6: This section explores resonant inductive coupling and its efficiency over varying transmission distances.

Section 7: Radio and Microwave
Description 7: This section discusses the use of radio and microwave frequencies for power transmission, detailing the conversion efficiencies and proposed applications.

Section 8: Electrostatic Induction
Description 8: This section explains capacitive coupling using electric field gradients for high-frequency alternating current transmission.

Section 9: Microwave Transmitter
Description 9: This section describes current technologies and research focused on using microwaves for power transmission, including various transmitter types and their efficiencies.

Section 10: Use of Microwave Power Transmission in Solar Power Satellites (SPS)
Description 10: This section outlines the concept of solar power satellites that generate energy in space and transmit it to Earth using microwaves, including the technical and regulatory challenges.

Section 11: WriTricity
Description 11: This section introduces WiTricity technology, which uses coupled resonant objects to wirelessly transmit power with high efficiency.

Section 12: Intel's Demonstration
Description 12: This section covers a demonstration by Intel showing the potential for resonant induction to wirelessly power devices, emphasizing efficiency and future applications.

Section 13: RECENT RESEARCH
Description 13: This section highlights recent advancements in the field, focusing on antennas, transmitters, beam control, and other innovations being developed globally.

Section 14: Merits
Description 14: This section discusses the benefits of wireless power transmission, such as reduced costs, elimination of wires, and high transmission efficiency.

Section 15: Demerits
Description 15: This section addresses the drawbacks and challenges, including issues related to frequency and biological compatibility.

Section 16: ECONOMIC ASPECTS
Description 16: This section examines the potential economic benefits of wireless power transmission, emphasizing the reduced need for infrastructure and lower utility bills.

Section 17: CONCLUSION
Description 17: This section summarizes the current state and future prospects of wireless power transmission, with a particular focus on solar power satellites and the evolving technology since Tesla's time.