Design and Performance Analysis of Log Periodic Dipole Antenna at Uhf Band

The paper described the design and performance analysis of log periodic dipole antenna at frequency 1800MHz -2500MHz (Ultra High Frequency Band), the antenna has been modeled using ADS layout and the S parameter was presented. A good impedance match in a wide frequency range has been achieved by a suitable choice of the antenna feeder impedance. The radiation pattern, Directivity, Return loss, Voltage Standing Wave Ratio (VSWR) and Gain are in accordance with the desired valuesare presented.