Vivaldi with tunable narrow band rejection | Zendy

Hamid M. R. | Zendy; Gardner P. | Zendy; Hall P. S. | Zendy; Ghanem F. | Zendy

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Vivaldi with tunable narrow band rejection

Author(s) -

Hamid M. R.,

Gardner P.,

Hall P. S.,

Ghanem F.

Publication year - 2011

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.25924

Subject(s) - vivaldi antenna , resonator , microwave , bandwidth (computing) , microstrip , band rejection , materials science , optoelectronics , electronic engineering , electrical engineering , engineering , antenna (radio) , telecommunications , antenna measurement

A novel Vivaldi antenna is presented with tunable narrow band rejection characteristics within the overall operating bandwidth. A microstrip line resonator is incorporated within the Vivaldi antenna to give a narrow stop band action. Three varactors are loaded into the resonator and are used for tuning. The stop band can be activated in the frequency range between 2 and 7 GHz to give a very wide tuning ratio of 3.5:1. Good agreements between simulated and measured results are observed, which verify the design concepts. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1125–1128, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25924

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