The present invention relates to the fabrication of [Bi4Ti30i2]x - [CaCu3Ti40i2]i-x composite thick film with improved dielectric results making them suitable for use in substrate material as the production of patch antenna. The method includes; synthesize a nanocomposite powder, which can be modified in the form of composite paste thereby producing a thick film by the way of screen printing process. The structural characterization of composite powders and dielectric behaviour of thick films were studied using X- ray diffraction and LCRQ meter. Design scheme of antennas to be optimized using ADS software prior to the construction and their performances are tested to accommodate an effectively operate at 2.34 GHz. Among these antennas, the (Bi4Ti30i2)o.2- (CaCu3Ti40i2)o.8 composite to fulfil the balance between the smaller in size, better gain, wide bandwidth, optimum return loss and higher efficiency. The design of the antenna is intended for proposed composite material and homemade method that can be effectively integrated in the patch antenna in a compact, low-cost mobile terminal.
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