A Pentagonal Shaped Microstrip Planar Antenna with Defected Ground Structure for Ultrawideband Applications

• DOI: 10.1007/s11277-021-09371-6
• Publication Date: 2021-11-17T06:03:41Z
• Authors: Saida Ibnyaich; Samira Chabaa; Layla Wakrim; Abdessalam El Yas...; Abdelouhab Zeroual; Moha M’rabet Hassani
• Keywords: WiMAX; Dual-Band Design; Wireless Energy Harvesting and Information Transfer; Antenna (radio); Aerospace Engineering; FOS: Mechanical engineering; Optimization Techniques for Antenna Arrays; Dipole antenna; 02 engineering and technology; Phased Array Antennas; Engineering; Microstrip Antennas; FOS: Electrical engineering, electronic engineering, information engineering; Ultra-Wideband; 0202 electrical engineering, electronic engineering, information engineering; Millimeter-Wave Applications; Omnidirectional antenna; Ground plane; Electrical and Electronic Engineering; Monopole antenna; Microstrip antenna; Patch antenna; Antenna Design and Applications; Electronic engineering; Physics; Acoustics; Computer science; Antenna measurement; Physical Sciences; Telecommunications; Wireless; Antennas; Microwave Engineering and Waveguides

Abstract A new compact pentagonal microstrip patch antenna with slotted ground plane structure, developed for use in ultrawideband applications, is studied in this article. The proposed antenna is mainly constituted by a pentagonal shaped patch antenna, a defected ground plane structure, two stubs, and four slots to improve the bandwidth. The designed antenna has an overall dimension of 30×17.59×1.6mm 3 , for WIMAX /WLAN/ WiFi/HIPERLAN-2 /Bluetooth /LTE /5G applications with a very large bandwidth starting from 2.66 GHz to 10.82 GHz (S 11 <-6 dB ). A parametric study of the ground plane structure was carried out to find the final and the optimal UWB antenna, and to confirm that the antenna has good performance and broader bandwidth. The proposed antenna prototype has been fabricated. The measured results indicate that the antenna has a good impedance matching. The antenna has an electrically small dimension with a good gain, a notable efficiency, and a wide impedance bandwidth, which makes this antenna an excellent candidate for ultrawideband wireless communication, microwave imaging, radar applications, and the major part of the mobile phone frequencies as well.