Citation

Rahman, Md. Mushfiqur and Halder, Sujit and Mahmud, Md. Zulfiker and Alam, Touhidul and Islam, Mohammad Tariqul and Lee, Lini and Al Mamun, Abdullah and Islam, Md. Shabiul A low profile and wideband antenna with omnidirectional radiation for the sub-terahertz applications of 6G. Journal of Optoelectronics and Advanced Materials, 27 (3-4). pp. 167-175.

Text fulltext.pdf - Published Version Restricted to Repository staff only Download (1MB)

Abstract

This paper proposes a low-profile two-element array antenna loaded with a matching circuit to achieve miniaturized wideband characteristics with omnidirectional radiation property for the Sub Terahertz applications of 6G. A single-element antenna gives a single resonance to a low-frequency region. When the array is formed, it exhibits two resonances in the low-frequency region with poor impedance matching. However, the loading of the matching circuit improves the matching of the first resonance and aids in generating a large bandwidth for the second resonance, where the gain is also improved substantially. The inset and matching structures are optimized to get the best antenna performance. The overall compact dimension of the antenna is 600 µm × 650 µm × 10 µm where the height is only 0.0034 of the operating wavelengths, and the width is only one-fifth of the operating wavelength at the center frequency of the low-frequency band. The numerical simulations are done with CST microwave studio software in the time domain. Simulation results show that the compact structure gives a percentage bandwidth of 17.13 % for the first resonance ranging from 92.3 GHz to 109.6 GHz and of 82.13 % for the second resonance ranging from 147.1 GHz to 352.1 GHz where |S11| is less than – 10 dB. Furthermore, the antenna shows a dumbbell-shaped radiation pattern in the E-plane and an omnidirectional radiation pattern in the H-plane for both resonances. Moreover, the cross-polarization levels in the H-plane for both resonances are recorded very low.

Item Type:	Article
Uncontrolled Keywords:	Sub-terahertz applications, 6G technology, Compact, Low-profile, Wideband, Matching circuit, Omnidirectional radiation pattern.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	01 Jul 2025 02:24
Last Modified:	01 Jul 2025 02:24
URII:	http://shdl.mmu.edu.my/id/eprint/14210

Downloads

Edit (login required)