Dual-frequency equilateral-triangular microstrip antenna with a slit

✍ Scribed by Kin-Lu Wong; Shyh-Tirng Fang; Jui-Han Lu

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 188 KB
• Volume: 19
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(19981205)19:5<348::aid-mop10>3.0.co;2-x

✦ Synopsis

Figure 10

Transmittance of x-component from anisotropic plate with and without grid as a function of frequency frequency. However, the parasitic component with the grid becomes much bigger when the frequency shifts far away from the center frequency.

V. CONCLUSIONS

The anisotropic FDTD formulation has been developed to analyze the crystal-grid plate used in quasioptical circuits. Special treatments are taken for the anisotropic medium and air᎐plate interface to achieve accurate simulation. In addition, the Floquet boundary condition using a unit cell and pulse excitation is successfully employed to achieve computational efficiency. The excellent agreement between the FDTD calculations and experiments shows the validity of our formulation. It is expected that our model can be applied effectively to any circuits including electronic and optoelectronic circuits with anisotropic medium.