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Comparison study of the PSTD and FDTD methods for scattering analysis

✍ Scribed by Qingliang Li; Yinchao Chen; Debiao Ge

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
765 KB
Volume
25
Category
Article
ISSN
0895-2477

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✦ Synopsis

A new design of a dual-frequency printed slot antenna loaded by an open-ring conducting strip and capaciti¨ely fed by a ( ) coplanar wa¨eguide CPW is demonstrated. Owing to the loaded conducting strip, the proposed antenna is separated into two slot regions, and can be considered to consist of two slot antennas: one rectangular slot loop antenna and one rectangular slot antenna, both coupled to each other and excited by the same CPW feed. Largely because of this, it is found that the first two resonant frequencies of the proposed antenna are dependent on the dimensions of the two slot antennas. Also, the two resonant frequencies ha¨e the same polarization planes, and both can be excited with good impedance matching. Some prototypes of the proposed dual-frequency slot antenna ha¨e been implemented, and experimental results are presented and discussed.

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