Terahertz antenna with tunable filtering

Autor:	Mohd Farman Ali, Zaid Jawed, Vinamra Raj, Gaurav Varshney
Rok vydání:	2023
Předmět:	Electrical and Electronic Engineering Engineering (miscellaneous) Atomic and Molecular Physics and Optics
Zdroj:	Applied Optics. 62:284
ISSN:	2155-3165 1559-128X
DOI:	10.1364/ao.475609
Popis:	A terahertz (THz) antenna with tunable filtering is designed and numerically studied. A slotted monopole radiator with defected ground structure is used for operating with wideband response with an impedance bandwidth in the range of 3.80–11.98 THz for S 11 ≤ − 10 d B . A slot is engraved in the radiator for obtaining the filtering characteristics in the antenna response. By varying its chemical potential, the frequency band 5.05–6.69 THz with graphene material can provide the tunability in the frequency and bandwidth of the filtered band in the antenna response. Furthermore, the antenna can provide radiation efficiency of more than 90% and gain with a peak value of 6.6 dBi in the passband.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65ee1f371096d8c7b9a59ea5b7e5f328 https://doi.org/10.1364/ao.475609 Zobrazit plný text záznamu