Simultaneous Time-Frequency Modeling of Ultra-Wideband Antennas by Two-Dimensional Hermite Processing

Abstract

Abstract-This paper proposes an approximate space-time-frequency field representation for directive Ultra-wideband antennas useful to be introduced into a system-level evaluation tool. Based on the observation that the very near field collected on a plane close to the antenna exhibits a compact support, such a field is processed in the time domain by the two-dimensional Hermite transform. This approach permits to simultaneously express the antenna impulse response and the transfer function by semi-analytical formulas. The theory is demonstrated by numerical examples which highlights that good representations of complex antennas can be achieved by a small set of associate Hermite functions.

Design of a Low-Profile Dual Exponentially Tapered Slot Antenna

“…Ultra Wide Band (UWB) radio technology can meet these requests, thus design of UWB antennas becomes significant [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

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