Wideband Microstrip 90° Hybrid Coupler Using High Pass Network
Figure 3
(a) Simulated magnitudes of the -parameters of the wideband 90° hybrid coupler reported in [7] using ideal transmission lines and ideal phase inverter. (b) Simulated phase difference of the -parameters of the wideband 90° hybrid coupler reported in [7] using ideal transmission lines and ideal phase inverter. (c) Simulated magnitudes of the -parameters of the proposed coupler using ideal transmission lines and ideal lumped elements. (d) Simulated phase difference of the -parameters of the proposed coupler reported using ideal transmission lines and ideal lumped elements.
