Maximum negative return loss of-57.32 was obtained for Preperm L500 dielectric material. It was seen that among the four dielectric materials, the substrate with the low dielectric constant has the highest directivity with a wide beam radiation pattern while FR 4 has the least gain. Four Substrate materials like Arlon AD 350A with dielectric constant of 3.5, FR-4 with dielectric constant of 4.3, Preperm L500 with dielectric constant of 5 and Lead glass with dielectric constant of 6 were taken to investigate their effects on the performance by simulating the antenna at 5GHZ. The design frequency and the thickness of the substrates were kept constant while different substrate materials were used and the notch width was varied to obtain the maximum performance. This paper demonstrates the effect of using different dielectric substrates on the performance of an inset fed circular patch microstrip antenna with the variation of notch width for 5 GHz wireless communications. Improve the impedance matching and return loss of the antenna. It shows the return loss of -37.08dB and 6.652 dBi gain at Industrial, Scientific and Medical sectors which operates at 3GHz Inset feed technique is very useful for various applications in The designed rectangular microstrip patch antenna with FR-4 withĭielectric constant of 4.3 is used as a substrate for the proposedĪntenna. The microstrip patch antenna isĭesigned to increase the bandwidth and return loss. With different parameters like return loss, VSWR, directivityĪlong two directions, radiation pattern in 2-D and 3-D, smithĬhart, impedance matching are simulated using CST Microwave In this paper, the rectangular patch is designed

Of maintaining high performance over a wide range of frequenciesĪre preferred. The Microstrip patch antenna has become veryįamous and has attracted much attention towards the researchīecause of its light weight, compact, inexpensive and are capable

Cst microwave studio antenna design