CPW-fed Circular Patch Antenna with Rectangular Slot-Loaded DGS for Wideband Application
In this paper, a wideband circular patch antenna incorporated with a rectangular slot-loaded defective ground structure (DGS) is presented, meant for n77, n78, n79, and C band applications. The circular radiation patch of the proposed antenna is fed by a coplanar waveguide (CPW) mounted on a FR4 PCB board. At the bottom side of the board, a rectangular slot loaded on the DGS is added to establish good 50 Ω impedance matching and improve the antenna impedance bandwidth. This wideband antenna excites TM11 and higher-order TM21 modes at two distinct frequencies (3.3 GHz and 6.0 GHz). This circular patch antenna exhibits wideband behaviour with a fractional bandwidth > 90%, and an average efficiency of 76%.
Authors
- Asrulnizam Abd Manaf (ORCID: https://orcid.org/0000-0002-6198-263X)
- Mohamad Faiz Mohamed Omar (ORCID: https://orcid.org/0000-0002-7194-0660)
- Sharul Kamal Abdul Rahim (ORCID: https://orcid.org/0000-0003-4511-1989)
- Mohd Fadzil Ain (ORCID: https://orcid.org/0000-0001-8730-8849)
Institutions
- University of Technology Malaysia (MY)
Publication Details
- Journal
- ELEKTRIKA- Journal of Electrical Engineering
- Published
- 2025-04-29
- DOI
- https://doi.org/10.11113/elektrika.v24n1.590
- Citations
- 2
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 9.99
Funders
- Universiti Teknologi Malaysia