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To enable the quest for high data rates in telecommunications, wide-band radio designs as well as antennas are required. This paper demonstrates a unique bandwidth enhancement technique for L-probe fed patch antenna. This is a novel technique to enhance patch antenna bandwidth with desired radiation properties. One circular shape main patch and two elliptical shape parasitic patches on PCB give wide-band response by exciting multiple resonances. The designed antenna array gives almost 45%, −10 dB impedance matched relative bandwidth. This is a very simple and inexpensive patch antenna solution for the wide-band wireless application. A two-element array of this antenna has been formed, and wide-band radiation properties of the array are reported.

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Currently sensitivity of electrical components to charged board model type electrostatic pulses is increasing. Therefore, accurate modeling of these pulses is important. This paper discusses the essential parameters of charged board model type ESD with measurements, 3-D electromagnetic simulations and circuit simulations and makes comparisons to the conventional methods.