Design and development of Miniaturized power divider for Mobile and wireless network

Abstract

In mobile and wireless applications, power divider and combiner are used to split and combine the power. Power Divider is a passive microwave component used as a feeding network for antenna array, power amplifiers and also used as mixers, phase shifter, radar, measurement systems, etc. It is used in the field of radio technology to combine a defined amount of the electromagnetic power in a transmission line from one port to another port. It supports various devices with the same or different band of frequencies. Both equal and unequal power division with arbitrary ratios is also possible. There are four types of power dividers specifically T-junction power divider, Resistive power divider, Wilkinson power divider, and Gysel power divider. Among various kinds of power dividers, Wilkinson power divider is widely used because of its simple structure, better isolation, and design simplicity. The enviable properties of a power divider are low nsertion loss, high isolation among output ports and low return loss. It can be realized by multiconductor transmission lines such as microstrip, stripline, coupled lines, etc. The integration of these transmission lines is also possible. Both in-phase and out of phase output powers can be obtained. Power divider is an essential RF device for the design of any mobile and wireless networks. It is used in various wireless technologies such as MTNL, Bluetooth, Wi-Fi, WI-MAX and RADAR applications. This research focuses on the design and development of different Wilkinson power divider for various applications. newline