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An efficient artificial absorbing layer for the wave-equation FDTD method

✍ Scribed by Jian-Guo Ma

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
72 KB
Volume
17
Category
Article
ISSN
0895-2477

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✦ Synopsis

y3 dB width. In contrast, in the E-plane, there was a large change across most of the band, with a threshold at about 20 GHz, above which the average was about 150% in the y10 dB width, although there are two prominent peaks at about 20.5 GHz, where the measurements in Figures 1᎐3 were made, and also at 24.0 GHz.

3. Conclusions

Far-field pattern measurements for this small waveguide horn show that beamwidth increases by factors of 2.5 or more can be obtained over a wide frequency range. The near-field results indicate that the effect occurs mainly in the plane perpendicular to the direction of bias, owing to a phase redistribution in the aperture.

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