Dual-polarized (DP) microstrip antennas are utilized in wireless systems for efficient data transmission. However, their bandwidth is typically very limited. In this contribution, we propose to design DP microstrip antennas with enhanced bandwidth using a density-based topology optimization approach. We formulate an optimization problem that simultaneously accounts for feeding port matching, the ports'isolation, and far-field dual-polarized performance. To enhance the bandwidth, we employ an FR4 stack-up, in which the copper on two layers is optimized simultaneously. We present two antenna designs operating around 5.7 GHz, which show a compromise in performance between a high isolation (more than 40 dB) and enhanced impedance bandwidth (around 10%). The optimized designs are experimentally validated, showing an excellent agreement between the simulated and measured performance.
A broadband dual‐polarized base station antenna is proposed in this letter. Based on a conventional planar dipole antenna, the proposed design successfully excites the third and fourth resonances by introducing triangular slots and a reflector, significantly extending the impedance bandwidth. Independent resonance...
Chun-Rong Li, Rui Wu, Hao-Yi Weng et al.· Microwave and optical techno...· 0 citations
This work presents a wideband circularly polarized (CP) MIMO antenna operating around 5.5 GHz. The design consists of two identical 2 2 subarrays using aperture-coupled microstrip elements. A 5 mm air gap between substrates is introduced to enhance impedance bandwidth, while a sequential phase feeding network ensures s...
Ngoc-Lan Nguyen, Dang-Khoa Ho, Quoc-Hung Bui et al.· IEEE Latin America Transacti...· 0 citations
Microstrip antennas are widely used in wireless communication systems because of their lightweight nature, compact size, and ease of fabrication. However, this type of antenna has inherent limitations, such as narrow bandwidth and low gain. To address these shortcomings, this study proposed a microstrip antenna operati...
Fitri Amillia, Hanafi Amri, T. Purnamirza et al.· Jurnal Nasional Teknik Elekt...· 0 citations
This paper proposes a compact dual-port in-band full-duplex slot antenna operating in the 5G NR n260 band (37-40 GHz). According to the offset feeding and dual dumbbell-shaped defected ground structure (DGS), the coupling between the two ports is effectively suppressed by DGS design with destructive interference. The s...
Yi-Chen Tsai, Li-Chi Chang· International Symposium on R...· 0 citations
In recent years, the demand for dual band microstrip antennas have increased significantly due to advancements in 5G, Wi-Fi, and modern wireless communication technologies. This paper presents a simple, compact, and modified rectangular-shape dual band microstrip antenna for 5G and Wi-Fi applications. The dual band mic...
U. Gupta, Hitendra Singh, Ramesh Kumar Verma· Engineering Research Express· 0 citations
Microstrip patch antennas (MPAs) are widely employed in wireless communication systems because of their low profile, lightweight structure, low fabrication cost, and ease of integration with planar circuits. However, selecting the most suitable patch geometry remains a major design challenge, as antenna shape significa...
Ebisemiju Gabriel Adewale, A. N. Oliseloke, Ajao Olatunji Samson et al.· Nigerian Journal of Physics· 0 citations
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