Vol.:(0123456789) Wireless Personal Communications (2021) 121:597–619 https://doi.org/10.1007/s11277-021-08652-4 1 3 A Compact Wideband Rectangular Microstrip Antenna to the S and C Bands Applications Basheer Ali Sheik 1  · P. V. Sridevi 1  · P. V. Rama Raju 2 Received: 6 March 2020 / Accepted: 15 June 2021 / Published online: 3 July 2021 © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2021 Abstract This paper is presented a Compact Wideband Rectangular Microstrip Antenna for the S and C Bands Applications. This proposed antenna has designed by Optimized Defected Ground Structure, tempered feedline as feed technique and superstrate with refector. These three techniques have been utilized to achieve a wideband, high gain and compact- ness of the antenna due to enhance the perfect impedance matching. This antenna design is designed and tested on the substrate material of the FR4 epoxy of the thickness of 1.6mm at 6 GHz. The design and results simulation of this design has been done in HFSS 14 V software and the fabricate design is tested with the combinational network analyzer in the anechoic chamber. The results of the simulated and fabricated have been observed as the impedance bandwidth is 3.56 GHz (from 2.65 to 6.21 GHz) and 4.07 GHz (from 2.3 to 6.37 GHz) respectively. The simulated and measured designs of the proposed antenna have been a good agreement between them. The main applications of this antenna are lower 5G (sub 6 GHz), WiMax, WLAN and SatCom. Keywords Modifed DGS · Modifed feed line · Invert U-shape and CWRMA 1 Introduction Nowadays, wireless communication is played an important role in communication systems. The wireless communication system has no physical media to travel the signal from trans- mitter to receiver. So, this system requires an important device to transmit and receive the signal without the need for any physical media. That is an antenna. The diferent anten- nas are useful in the wireless communication system such as a helical antenna, parabola * Basheer Ali Sheik basheeralis@yahoo.com P. V. Sridevi pvs6_5@yahoo.co.in P. V. Rama Raju pvrraju50@gmail.com 1 Department of Electronics and Communication Engineering, Andhra University College of Engineering (A), Visakhapatnam, Andhra Pradesh, India 2 Department of ECE, SRKR Engineering College (A), Andhra Pradesh, Bhimavaram, India