Electromagnetic waves essays and research papers

The word radar can be an abbreviation for Radio Recognition and Ranging. Generally, radar systems use modulated waveforms and directive antennas to transmit electromagnetic energy into a specific volume level in space to find targets. Items (concentrate on) in the search level will reflect some of the energy (or radar echo again) returned to the radar. The receiver to extract radar target information such as range, quickness, position position, and focus on other identifying..

An antenna is a tool that sends or accepts electromagnetic waves. It changes electromagnetic waves into electric currents, and electric currents to electromagnetic waves. Antennas are being used to receive and send waves from the air rate of recurrence of the electromagnetic spectrum. Antennas are used in radio and tv broadcasting, spacecraft communication, point-to-point radio communication like walkie-talkie system, palm phones, radar, and wireless LAN. An antenna..