Microstrip Crossover for Millimeter-wave Applications

Novel compact microstrip crossover is developed for millimeter wave signal distribution and routing applications. The structure and design offering great deal of simplicity and good method for designing 0-dB coupler. Circuit analysed through equivalent mode is presented and an extremely compact and low-loss 0-dB coupler is realised at 32 GHz with good performance. The Simulated design and equivalent circuit results show a good agreement under 20dB isolation, return loss and coupling. Theoretical predictions, simulated and measured results are agreeing very well in results which exhibit a 5% bandwidth with small size and low coupling loss.