Rectenna integrated with Lens

Project Title

Project Area of Specialization

Internet of Things

Project Summary

`In the last few years, the demand for power has increased; therefore, the need for alternate energy sources has become essential. Sources of fossil fuels are finite, are costly, and causes environmental hazard. Sustainable, environmentally benign energy can be derived from nuclear fission or captured from ambient sources. Large-scale ambient energy is widely available and large-scale technologies are being developed to efficiently capture it. At the other end of the scale, there are small amounts of wasted energy that could be useful if captured. There are various types of external energy sources such as solar, thermal, wind, and RF energy. Energy has been harvested for different purposes in the last few recent years. Energy harvesting from inexhaustible sources with no adverse environmental effect can provide unlimited energy for harvesting in a way of powering an embedded system from the environment. It could be RF energy harvesting by using antennas that can be held on the car glass or building, or in any places. The abundant RF energy is harvested from surrounding sources. This chapter focuses on RF energy harvesting in which the abundant RF energy from surrounding sources, such as nearby mobile phones, wireless LANs (WLANs), Wi-Fi, FM/AM radio signals, and broadcast television signals or DTV, is captured by a receiving antenna and rectified into a usable DC voltage. A practical approach for RF energy harvesting design and management of the harvested and available energy for wireless sensor networks is to improve the energy efficiency and large accepted antenna gain. The emerging self-powered systems challenge and dictate the direction of research in energy harvesting (EH). There are a lot of applications of energy harvesting such as wireless weather stations, car tire pressure monitors, implantable medical devices, traffic alert signs, and mars rover. A lot of researches are done to create several designs of rectenna (antenna and rectifier) that meet various objectives for use in RF energy harvesting, whatever opaque or transparent. However, most of the designed antennas are opaque and prevent the sunlight to pass through, so it is hard to put it on the car glass or window. Thus, there should be a design for transparent antenna that allows the sunlight to pass through. Among various antennas, micro strip patch antennas are widely used because they are low profile, are lightweight, and have planar structure

Project Objectives

Microwave energy harvesting using antenna which is integrated with lens for max output.

Project Implementation Method

Project have 3 steps.

1.Design of patch antenna for frequency range of 2.4ghz.

2.Integration of lens with antenna.

3.Design of Rectifier Circuit for microwave energy harvesting.

Benefits of the Project

Energy Harvesting using WiFi signals which are easily available in any part of the world.

Affordable and clean energy.

Technical Details of Final Deliverable

There are dozens of quality factors for technical components such as (ex. stability, availability, scalability, instability, security, extensibility). Most of the components are unavailable in our living country.