Design and Manufacturing of an Array and Single Microstrip Patch Antenna to Transmit and Receive by using Same Patch Shape

Abstract

In the last years, the progress in communication systems requires the development of high gain and low-cost Microstrip array antennas with suitable feeding technique and a dielectric substrate for applications in 2.1 GHz. The array antenna and single antenna were constructed on a substrate FR4 with a relative permittivity of 4.3. The suggested single antenna is benefited of a compact size of 50#x5F3;0 mm2 at 2.1GHz frequency band and the suggested dimension array antenna is 160*52 mm2. The antenna is Microstrip line feeder and is simulated on CST software. Performance parameter evaluated are increased by using reflection, the array design has directivity up to 8.955 dBi and Gain up to 8.506 dB with satisfactory radiation characteristics. The single design has directivity up to 2.352 dBi and Gain up to 2.206 dB with satisfactory radiation characteristics. Been fabricated the array and single Microstrip antenna using CNC Machine. The practical results of radiation patterns and gain for two cases (array and single) are approximately similar to theoretical results. The computer simulation results show that the antenna having good impedance bandwidth (S11lt; -10 dB) at the resonant frequency.