A 45° phase shifter in microstrip-slot technology for beam forming network application

The design of 45 degree multilayer microstrip-slot phase shifter operating at 2. 45GHz is presented in this paper. The device consists of a ground conductor layer in the middle of the two substrates. The design is accomplished with the use of design software and EM analysis. Low insertion loss and good return loss performances at 2. 45GHz for the designed structures are noted