Printed monopole antenna with tunable band-notched characteristic for use in mobile and ultra-wide band applications
| Autor: | Roger W. Clarke, Chan H. See, Issa Elfergani, S. Zhu, Jonathan Rodriguez, Raed A. Abd-Alhameed, Abubakar Sadiq Hussaini, N. J. McEwan |
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| Rok vydání: | 2014 |
| Předmět: |
Engineering
business.industry Antenna measurement Electrical engineering Impedance matching Antenna tuner Computer Graphics and Computer-Aided Design Computer Science Applications Antenna efficiency law.invention law Optoelectronics Dipole antenna Electrical and Electronic Engineering Antenna (radio) Driven element business Monopole antenna |
| Zdroj: | International Journal of RF and Microwave Computer-Aided Engineering. 25:403-412 |
| ISSN: | 1096-4290 |
| DOI: | 10.1002/mmce.20874 |
| Popis: | A tunable band-notch printed monopole antenna is presented, exhibiting a wide impedance bandwidth from 1.5 to 5.5 GHz with good impedance matching VSWRi¾?2 and a tunable rejected frequency band from 2.38 to 3.87 GHz. The band-notching is achieved by adding an inner chorded crescent element within a driven element of a similar shape. By varying the value of the varactor, which is placed between the inner and outer arcs, the desired variable rejected can be obtained. Simulated and measured results show wide impedance bandwidth with a tunable band notch, stable radiation patterns, and consistent nearly constant gain. The antenna is suitable for mobile and portable applications. © 2014 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:403-412, 2015. |
| Databáze: | OpenAIRE |
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