A transmitter is an electronic device used in telecommunications to produce radio waves in order to transmit or send data with the support of an antenna. The transmitter is able to produce a radio frequency alternating current that is then applied to the antenna, which, in turn, radiates this as radio waves. On the standard being used and the type of device there are many types of transmitters. E.g.manycurrent devices that have communication skills have transmitters such as Wi-Fi, Bluetooth, NFC and cellular.
A transmitter is also recognized as a radio transmitter.
• Power supply — The energy source used to power the device and produce the energy for broadcasting
• Electronic oscillator — Produces a wave called the carrier wave where data is forced and carried through the air
• Modulator — Ads the actual data into the carrier wave by varying some feature of the carrier wave
• RF amplifier — Increases the power of the signal so as to increase the range where the waves can reach
• Antenna tuner or impedance matching circuit — It matches the impedance of the transmitter to antenna in direction for the transfer of power to the antenna to be effective and avoid a condition called standing waves, where power is echoed from the antenna back to the transmitter, wasting power or damaging it.