Designing Two Models of a Radiated Patch Antenna, One Using the Strip Line Technique and the Other Using the Coaxial Feeding Technique, and Comparing Them In Terms Of Return Loss and Standing Wave Voltage VSWR

Abstract

In this research, two models of the radiated patch antenna were designed, each of which operates in a different feeding method from the other, and the material FR-4 was used as an insulating substrate with a dielectric constant of 4.3. Copper was also used as a conductive material for the radiated patch and the transmission line, with fairly close geometric dimensions. The first antenna has dimensions (31 x 26 x 1.6) m3 and the second antenna has dimensions (30 x 27 x 1.6) m3, The first one works with the coaxial probe technique. The user uses the linear feed technique. If it is found that the loss of the first antenna is equal to -26.0113 dB and a ratio of 1.1053 at a frequency of 3.59 GHz and -24.743 GHz and a ratio of 1.8908 at a frequency of 5.529 GHz, and the return loss of the second antenna is -27.468 dB and a ratio Frequency 1.0884 at a frequency of 3.45 GHz Both antennas were designed and operated using CST software (Computer Simulation Tool).