Wideband printed monopole antenna for application in wireless communication systems. Issue 7 (4th April 2018)

• Record Type: Journal Article
• Authors: Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan Hwang; Abd‐Alhameed, Raed; Ali, Abdul; Falcone, Francisco; Limiti, Ernesto
• Is Part Of: IET microwaves, antennas & propagation. Volume 12:Issue 7(2018)
• Page Start: 1222
• Page End: 1230
• Publication Date: 2018-04-04
• Subjects: monopole antennas -- broadband antennas -- microstrip antennas -- antenna feeds -- resonators -- antenna radiation patterns -- omnidirectional antennas; wideband printed monopole antenna -- wireless communication systems -- electrically small printed monopole antenna -- return‐loss -- peak gain -- radiation efficiency -- antenna geometry -- back‐to‐back triangular shaped patch structure -- common feed‐line -- meander‐line T‐shape divider -- truncated ground‐plane -- impedance bandwidth -- four‐double split‐ring resonators -- radiating patches -- L‐band -- S‐band -- free‐space wavelength -- low‐profile low‐cost antenna -- wideband wireless communication systems -- frequency 115 MHz to 2.90 GHz -- efficiency 78.8 percent; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2017.0894
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : Empirical results of an electrically small printed monopole antenna are described with a fractional bandwidth of 185% (115 MHz to 2.90 GHz) for return‐loss better than 10 dB, peak gain and radiation efficiency at 1.45 GHz of 2.35 dBi and 78.8%, respectively. The antenna geometry can be approximated to a back‐to‐back triangular shaped patch structure that is excited through a common feed‐line with a meander‐line T‐shape divider. The truncated ground‐plane includes a central stub located underneath the feed‐line. The impedance bandwidth of the antenna is enhanced with the inclusion of meander‐line slots in the patch and four double split‐ring resonators on the underside of the radiating patches. The antenna radiates approximately omni‐directionally to provide coverage over a large part of very high frequency, the whole of ultrahigh frequency, the whole of L‐band and some parts of S‐band. The antenna has dimensions of 48.32 × 43.72 × 0.8 mm 3, which is corresponding to the electrical size of 0.235 λ 0 × 0.211 λ 0 × 0.003 λ 0, where λ 0 is the free‐space wavelength at 1.45 GHz. The proposed low‐profile low‐cost antenna is suitable for application in wideband wireless communications systems.