Compact Dual Bandpass Filter Using Dual-Split Ring Resonator for 5G Upper Microwave Flexible Use Services

Autor: Ampavathina Sowjanya, Damera Vakula
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Electromagnetic Engineering and Science, Vol 22, Iss 4, Pp 434-439 (2022)
Druh dokumentu: article
ISSN: 2671-7255
2671-7263
DOI: 10.26866/jees.2022.4.r.106
Popis: A novel, compact dual bandpass filter design is proposed for 5G upper microwave flexible use services. To realize the proposed design, a dual split-ring resonator structure coupled to the microstrip transmission line is used. The output responses have been validated using vector network analyzer N5222A. The measured filter records a frequency range of 23.8–25.98 GHz for the first passband and 28.05–28.7 GHz for the second band, with fractional bandwidths of 8.8% and 2.2%, respectively. The minimum insertion loss is observed to be 4.2 dB using microstrip technology, even at higher frequencies. The proposed design occupies the area of 0.4λg × 0.27λg, where λg is guided wavelength at the lower band central frequency. Simulated and measured results are approximately compatible with each other. The proposed design is useful for fixed satellite service earth stations, terrestrial wireless operations, and 5G mobile communications applications.
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