Before you can understand what Antenna Systems are used for, you would need to first understand what Antenna Systems are. Any electric system that has to do with communication has one or many antenna systems within it. Any object that takes electronic signals and transposed them to electromagnetic waves would be considered an antenna. The range of applications of antenna systems are virtually endless, and widely used by everyone on a daily basis.
When you fly on an airplane, the pilot of the aircraft is in constant communication with the air controllers on the ground. This is possible because of the antenna system that connects the tower to the aircraft allowing for radio communication between the two at a particular frequency band. Other antennas built in to the aircraft are for sending data and information to the communication towers as well.
Another widely used application of antenna systems is for weather radar. Initially created to detect enemy aircraft, radar had an issue with picking up precipitation waves. However, at some point this was found to be useful for picking up the density of the precipitation and clouds. That is how our modern day weather radar systems run; it all begins with antennas.
The third application that antennas are used in is the medical field. MRI machines use a transmitter and then a receiver to communicate electromagnetic waves that ultimately put the picture on the screen of which ever body part it is taking an MRI of. Many other medical devices and machines have made it possible to save lives with the help of antennas in diagnosis, imaging, and treatments.
Chances are that you or someone you know uses satellite dish television. The satellite industry utilizes antenna systems to exist. The dish on you or your neighbors roof is an antenna receiver that receives waves at a specific frequency from the satellite transmitter. This communication between antennas enable millions of people to watch television even in areas where traditional cable is not available.
Your car even has antennas in it. The FM or AM radio you listen to when driving or riding in your car is a receiver of radio waves. AM and FM are two broadcast at different frequency range levels allowing for your car to pick up either one providing you have both an AM and FM antenna. Newer cars now have satellite radio, so they have a satellite radio receiver as well.
The sixth application that antennas are used for is WiFi or wireless internet connection. Any device that has WiFi capability also has a WiFi antenna to make that capability possible. All wireless routers have a WiFi transmitter antenna to send the internet signal to your devices in order to use the WiFi on them. Often times, the physical antenna itself is very small in size as to fit inside of a security camera, or cellphone.
Last but not least, the sonar systems that ships and submarines use to detect objects in deep water are based around antennas. Sonar antennas send off sound waves that then echo off the ocean floor and any object that is on or close to the floor. A separate antenna then picks up those waves and converts them into a picture of the ocean floor. This is an application where the transmitter and receiver are usually close together and depend on the echo or bouncing of the waves off surfaces to provide its data.
Antennas and antenna systems are everywhere in today’s world. The reality is that the majority of things you do in your everyday life depend on the use of antennas and their systems. In fact, it would be very difficult to imagine life without the luxury of wireless communication that depend on antennas. Antenna technology is ever evolving in improvement and advancements everyday.