Theta-Shaped Microstrip Patch Antenna with DGS for Dual NR Mid Band 5G Deployment Applications
| Authors | Suganthi Santhanam1, Vijay Mathiyazhagan2, PL. Natchiammai3, Suriya Kasinathan4, S. Athinarayanan5, Manjunathan Alagarsamy1 |
| Affiliations |
1Department of Electronics and Communication Engineering, K. Ramakrishnan College of Technology, Tir-uchirappalli, Tamil Nadu, India 2Department of Electronics and Communication Engineering, SRM TRP Engineering College, Irungalur, Trichy 621105, Tamil Nadu, India 3Department of Electronics and Communication Engineering, Mookambigai College of Engineering, Pudukkottai, Tamil Nadu, India 4Department of Electronics and Communication Engineering, Easwari Engineering College, Ramapuram, Chennai – 600089, Tamil Nadu, India 5Department of Computer Science and Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai – 600062, Tamil Nadu, India |
| Е-mail | suganthis.ece@krct.ac.in |
| Issue | Volume 18, Year 2026, Number 4 |
| Dates | Received 04 April 2026; revised manuscript received 17 August 2026; published online 21 August 2026 |
| Citation | Suganthi Santhanam, Vijay Mathiyazhagan, et al., J. Nano- Electron. Phys. 18 No 4, 04012 (2026) |
| DOI | https://doi.org/10.21272/jnep.18(4).04012 |
| PACS Number(s) | 84.40.Ba |
| Keywords | Microstrip patch antenna, Defected ground, Circular slotted theta-shaped radiating elements, Mobile phones, 5G tri-band, DGS (9) , High gain (2) , High directivity. |
| Annotation |
The design and installation of an improved defective ground structure (DGS) slotting theta-shaped patch antenna (TSPA) for 5G Sub-6 GHz applications are presented in this work. An FR-4 substrate (r 4.3, tan 0.025), which has a copper layer on the two sides, is used to manufacture the suggested antenna. The antenna works at two frequencies of 4.13 GHz and 5.12 GHz, including the n77 (3.3-4.2 GHz) and n79 (4.4-5 GHz) bands. Its small dimensions are 35 34 1.6 mm3 (0.39 0.37 0.02). It has an enhanced reflection coefficient of – 30 dB at both frequencies and a broader bandwidth of 130 MHz at 4.13 GHz and 400 MHz at 5.12 GHz. The benefits and efficacy of the suggested design for the intended applications are highlighted by a careful comparison with similar published studies. The results shed light on how 5G wireless communication networks should be optimized. The antenna's omnidirectional transmission pattern, significant gain, and effective radiation make it a feasible choice for the spectrum of 5G communication systems in a number of situations. For 5G portable devices, this suggested antenna may be helpful. The need for active beam forming antenna configurations in 5G telecommunications, especially in the sub-6 GHz frequency range, necessitates the integration of novel electronics with antennas. |
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