I. Introduction
Rectangular and circular waveguide and waveguide based components have been used since world war-II and are still used. Waveguide helps in the propagation of high frequency electromagnetic waves. It is used in Radar systems, broadcasting and communication satellite. Phased array antennas played an important role in military radar system, 5G, radio astronomy, RFID, space probe communication and MIMO. To feed the power to each element of phased array antennas, power divider are used [1]. When two channel of waveguide are formed, at the joint due to faulty workmanship electromagnetic field may couple to an adjacent channel, resulting crosstalk. This is unwanted and should be avoided.