1. Analysis of high gain single element microstrip antenna for X band application.
- Author
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Ayyappan, Jasmine Vijithra, Mariapushpam, Inbamalar Tharcis, Ramamoorthi, Nivetha, Pandiyaraj, Nethra, Kumar, Sanjana, and Gopal, Tharani
- Subjects
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IMPEDANCE matching , *MICROSTRIP antennas , *MICROSTRIP transmission lines , *PERMITTIVITY , *SUBSTRATES (Materials science) - Abstract
A simple microstrip antenna of 28 mm × 23 mm × 1.64 mm that operates at 8.4 GHz frequency is designed and well explained in the paper. The novelty of the design relies on the combined effect of structural modifications of the patch and minor modifications in the defected ground structure. The proposed design has three layers namely, a patch, a substrate, and a ground plane. A copper of thickness 0.035 mm is used as a patch and ground plane. The RT5880 substrate with 1.57 mm thickness and a dielectric constant of 2.2 is considered. Slots with dimensions as multiples λ are incorporated into the ground plane and patch to ensure impedance matching. To ensure precise coupling between the patch and ground plane, an inset microstrip feed line is employed. A rectangular slotof 8 mm × 12 mm is made in the ground plane and a circular slot of the inner and outer radius of 2.5 mm and 3 mm is made and is combined with two rectangular slots forming a dumbbell-shaped structure at the patch to offer mutual coupling via slot loading. On sourcing the patch using a microstrip feed line, the patch radiates more effectively providing a high gain of 6.253 dB and bandwidth of 0.40616 GHz. Thus, it is best suited for X-band applications. [ABSTRACT FROM AUTHOR]
- Published
- 2025
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