Publication: Note: Tunable notch filter based on liquid crystal technology for microwave applications
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2013-02
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Tutors
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AIP Publishing
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Abstract
In this work, a compact design of an electrically tunable notch filter, based on liquid crystal (LC) technology, has been designed, manufactured, and characterized. The proposal has been achieved through particular configuration schemes with low cost inverted-microstrip structures and conventional spurlines structures due to its ease of integration. Central frequency tunability has been induced by applying low ac voltages, thus involving low power consumption. For these devices, filter responses have been approached specifically at microwave C-band frequency allocated for many satellite communications applications. Also, it has taken advantage of new highly anisotropic nematic LC mixtures at those frequency ranges.
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Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The following article appeared in Review of Scientific Instruments (2013), 84 (2). and may be found at http://dx.doi.org/10.1063/1.4790555
Keywords
Liquid crystals, Microwaves, Notch filters, Permittivity, Anisotropy, Liquid crystal devices, Liquid dielectrics, Materials properties, Radiowave and microwave technology, Telecommunications
Bibliographic citation
Review of Scientific Instruments (2013), 84 (2).