Test

This is the project page of an example project. Start the page with a short description what this is about. The structure below is just a suggestion - use your judgement how you want to present your project. Also, feel free to generate additional pages if this page gets too busy.

Idea

The aim of the project is to investigate the mechanism behind RFID technology that we may or may not have taken for granted.

Background

Radio-frequency (RF) is a part of the electromagnetic spectrum typically in the range from 10kHz to 300GHz. RF technology is an integral part of our everyday lives. Common examples include phone signals, radio broadcast, ID cards used for various public transport and access control (RFID), various forms of wireless payments including NFCs. In the case of RFIDs, there is usually an emitter and receiver. The emitter emits a wave

Setup

The experimental setup will aim to emulate and emitter and receiver, similar to a typical scenario in RFID systems. On the emitter side, the loop of wire is connected to a function generator (model) while the receiver side is connected to the oscilloscope (model). A gap is left between the emitter and receiver to put in a 'shield' to observe the resulting attentuation on the receiver.

Measurements

One of the properties that we might think of intuitively when it comes to shielding is the thickness. Here, we vary the thickness a metal plate between both the loops of wire for a range of frequencies available from the function generator.

Another property which we can think of is the size (surface area) of the shield. Similarly, we recorded the signal strength in the oscilloscope for a few sizes of the shield to observe the overall effectiveness for various frequencies.

Lastly,