A wideband quasi-Yagi antenna using symmetrical slots on the ground plane

Turan G., Odabaşi H.

ELECTROMAGNETICS, vol.43, no.5, pp.349-360, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 5
  • Publication Date: 2023
  • Doi Number: 10.1080/02726343.2023.2244841
  • Journal Name: ELECTROMAGNETICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.349-360
  • Keywords: Planar antennas, quasi-Yagi, symmetrical rectangular slots, wideband antennas, DIPOLES, DRIVER
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

A wideband quasi-Yagi antenna with symmetrical rectangular slots in the ground plane is studied. The feeding structure of the antenna is simplified, consisting of a microstrip transmission line and a short strip. The driver and director arms are designed as half on both sides of the substrate to improve pattern stability. The antenna's bandwidth is improved by symmetrically adding rectangular slots to the ground. The antenna works between 3 and 7.7 GHz with a gain that varies between 4.7 to 7.4 dBi, a bandwidth of 87.8%, and an efficiency of more than 90%. The antenna has a very compact size of 0.42?(L )x 0.42?(L) (?(L) is the wavelength for the lowest operating frequency). The simula-tion and measurement results are in good agreement. The antenna has highly stable end-fire radiation within its operating frequency and can be used for wideband wireless communication systems.