Simulation study on the characteristics of 3 GHz microstrip racetrack hybrid ring

This paper theoretically analyzed the characteristics of the microstrip hybrid ring. 3 dB standard microstrip hybrid ring and racetrack hybrid ring, whose working frequency is 3 GHz, have been designed on a rectangular substrate. Using high frequency structure simulator (HFSS) software as tool for simulation, the s-parameter data is comparatively studied. The experimental results showed that the overall performance of the designed racetrack microstrip hybrid ring is superior to the ordinary standard microstrip hybrid ring.