SILICON BASED ON CHIP ANTENNA

Abstract

In the modern wireless communication era the use of small handheld devices has become very important and the growing technology in every field has created the requirement of high speed data transfer. In every type of communication there is sender and a receiver so an antenna plays a vital role in any type of communication. Therefore, transferring data from a handheld devices and small devices it requires that the antenna should also be very small. Due to theses requirements the research in the field of On chip antenna has become very popular. The advantage of on chip antennas are they are very small in size and can be easily integrated to the ICs. The research works has made the manufacturing of on chip antennas very less costly but this filed is still in development stage so it needs more research so that antennas can match the requirements. The proposed work for the dissertation is to design a slot antenna using IPD technology which should have high gain and radiation efficiency. The proposed antenna should also work as a on chip antenna and can be used at high frequency (in the range of 57 to 64 GHz) - for high date rate for wireless communications and other emerging applications. The designed antenna has central frequency of 57.094 GHz and radiation efficiency of 94%. In the antenna design there are four layers of high resistivity silicon substrate. Two layers are of metals which are aluminum and copper and other two layers are of silicon dioxide which works as a dielectric. In the design there is a transition between microstrip line to CPW so that GSG pad can be used to test the antenna. The total size of the antenna is 4.5 mm x 2 mm. and the slot size is 1.4mm. The main aim of designing the antenna is to have high radiation efficiency and high gain which is fulfilled by this work.