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Influence of metallic photonic bandgap (MPBG) materials interface on dipole radiation characteristics

✍ Scribed by G. Poilasne; P. Pouliguen; K. Mahdjoubi; C. Terret; Ph. Gelin; L. Desclos

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
212 KB
Volume
18
Category
Article
ISSN
0895-2477

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✦ Synopsis

The MPBG interface influence on half-wa¨elength dipole radiation characteristicsᎏradiation pattern and input impedanceᎏis analyzed. This study concerns frequency operation within or without an MPBG bandgap. A first analysis has been performed by replacing a wire of a 2-D square lattice MPBG by a dipole. Then, the study of dipole᎐ MPBG distance is presented for different MPBG structures, and is compared to simple and gridded corner reflector characteristics. This demonstrates that the input impedance ¨alue can be controlled, and depends on the MPBG structure dimensions and on the dipole position within this structure. It shows that some impro¨ement of angular filter specifications can be obtained when the MPBG interface is no longer a plane.

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Experimental radiation pattern of dipole
Experimental radiation pattern of dipole inside metallic photonic bandgap material
✍ G. Poilasne; P. Pouliguen; K. Mahdjoubi; C. Terret; Ph. Gelin; L. Desclos 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 350 KB 👁 1 views

ing to the decreasing sizes of the ARS patch, the center frequency is decreased to be at 2597 MHz, compared to 1958 MHz for the case of s 64Њ. The obtained CP bandwidth is 26 MHz or about 1.0%. And from the measured maximum received power, the proposed ARS patch antenna with s 45Њ is also seen to be