A Passive Microwave Pulse Compressor Using Dual Spherical Cavities

A method for improving peak power gain and pulse compression efficiency of the passive microwave pulse compressor is proposed. The proposed passive microwave pulse compressor consists of a dual-mode polarizer and two parallel spherical resonant cavities. This method can effectively depress the mode contention, but also, increase the Q factor of resonant cavities. By contrast, the peak power gain and pulse compression efficiency of the pulse compressor with a single cavity are 6.52 and 22.6%, respectively, while they are increased to 7.4 and 52.43 % respectively using two parallel cavities. The latter offers a 13% improvement in peak power gain and a 30% improvement in compression efficiency over the former.