Design of a Matching Network for a High Frequency Monopole Antenna

The paper presents a technique for designing an impedance matching circuit for high frequency monopole antennas, operating at frequency range of 3-15MHz, instead of designing and working on the network topology and altering properties for the antenna, here we designed a matching network of one fixed topology. An impedance matching network type L and C is used while designing the matching circuit, which is composed of two capacitor, two inductors and one resistor, each component in the network are being optimized using genetic algorithm in order to widen the bandwidth at the feeding point of the monopole antenna. This is done through the simulation software Advanced Design System (ADS). And our main purpose is to reduce the antenna's impedance mismatch, so that the network can be developed in a simple manner the bandwidth
$(\text{VSWR} < 31)$
, of 3-15MHz is obtained.