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A dielectric resonator antenna with orthogonal CPW feed and T-match

✍ Scribed by Guillaume Lathière; Raphaël Gillard; Hervé Legay

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
112 KB
Volume
46
Category
Article
ISSN
0895-2477

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✦ Synopsis

curves still follow each other closely as the incident angle is varied.

4. CONCLUSION

In summary, we have studied the nonlinear transmission of a periodic structure containing alternating layers of positive-index and negative-index materials. The gap associated with a zeroaverage refractive index exhibits a bistable response that is relatively insensitive to input angles, in contrast to the behavior of the usual Bragg gap. This would make possible the operation of all-optical switches that have a wide field of view. The phenomenon of negative refraction is always accompanied by dispersion [1] and, hence, plays a key role in nonlinear gap tuning. By changing the dispersion in the negative-index material, the gap tuning and hysteresis behavior can be controlled.

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