Vinay Shrivastava

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A new elliptical ultra-wideband fractal antenna with elliptical iterations is presented in this paper. The proposed antenna is based on Descartes Circle Theorem (DCT). The proposed structure is fed by the 50 Omega microstrip line. The antenna is fabricated on a 1.59 mm thick FR-4 (relative permittivity of 4.4) substrate. The antenna structure is analyzed(More)
OFDM is a multi-carrier transmission scheme which effectively combats the problem of inter-symbol interference characteristic for the high rate data transmission over the mobile fading radio channel. Consequently, it has been selected for high rate WLAN standards like the HIPERLAN/2 and the IEEE 802.11a. In this paper, we evaluate the performance of OFDM(More)
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