OPTIMIZATION AND SIMULATION OF MULTIBAND SLOTTED PATCH MICROSTRIP ANTENNA ARRAY USING ADS SOFTWARE

Abstract

In recent years increase in demand of wireless microwave antenna has increased the research scope in the field of micro-strip technology. To support high mobility necessity for a wireless telecommunication device and for high resolution mapping in RADAR communication a small and light weight concept antenna is most suitable. The development of antenna for wireless communication also required to work on more than one frequency. Therefore antenna having multi frequency operating capability is more in demand. The most effective method for fabrication of micro-strip antenna for multi frequency is that cut slot in proper proportion on patch. This thesis describe about printed micro-strip antennas and array that have limitation in terms of bandwidth and efficiency, all imposed by the very presence of the dielectric substrate. The design antenna generate dual frequency. This frequency band can be used for satellite and radar communication. Due to small size, low weight micro-strip antennas have a vast application. To ensure high directivity and gain of antenna cutting slot dimension must be carefully controlled. A proper dielectric material selection is must. In this design we used epoxy fiber glass as dielectric material with dielectric constant 4.6 and loss tangent of value 0.023. The proposed antenna is dual frequency which operate at 10.74 GHz and 14.74 GHz. Hence it is a good entrant for application of X band and Ku band in microwave and RADAR communication. The X band belongs to the microwave radio region of the electromagnetic spectrum. It is defined by an IEEE standard for radio waves and RADAR engineering with frequency range from 8GHz to 12GHz. The X band is used for short range tracking, missile guideline, marine, RADAR and airborne intercept. The Ku band belongs to the microwave radio region of EM spectrum. It is defined by the IEEE standard for radar engineering in the of 12 GHz to 18 GHz. It is used for high resolution mapping and satellite altimetry and tracking satellite. This thesis design such antenna which meets the requirement of above stated project All the simulation is done on the ADS momentum 2011.