Experimental verification that a metamaterial wedge supports the propagation of a bandlimted modulated signal

Author

Hanna, D.L. ; Best, S.R. ; Turchinetz, B.W. ; Derov, J.S.

Author_Institution

MITRE Corp., Bedford, MA

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

We have performed CW measurements on the metamaterial wedge providing detailed insight into its behavior and operating bandwidth limitations. Measurements with a narrowband modulated signal have demonstrated that negative refraction exists with a practical QPSK signal modulation scheme. The CW measurements indicated that the metamaterial wedge would not allow the successful transmission of a QPSK modulated signal having bandwidths in excess of 4% to 5%. This bandwidth limitation was demonstrated experimentally where successful transmission of a modulated signal having 406.4 MHz was performed. A modulated signal having a bandwidth of 838 MHz could not be successfully transmitted through the wedge.

Keywords

bandlimited signals; metamaterials; quadrature phase shift keying; QPSK signal modulation; bandlimited modulated signal; bandwidth 838 MHz; experimental verification; metamaterial wedge; narrowband modulated signal; Bandwidth; Constellation diagram; Electromagnetic propagation; Frequency measurement; Metamaterials; Narrowband; Performance evaluation; Quadrature phase shift keying; Signal analysis; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619994

Filename

4619994