As a fundamental part of a wireless communication system, the Antenna is a device that converts the RF signal to an equivalent electromagnetic wave for transmitting into & receiving from free space. Radio wave communication needs transmitting as well as Receiving Antennas. It acts as a transducer that converts an RF signal into an EM wave at the transmitter and an EM wave back to an electrical signal at the receiver. Various Electrical and mechanical parameters are there which determines the use of the Antenna in a wireless PTP or PMP communication setup.