A six-port path-reconfigurable circulator based on Y-type plasma photonic crystals (PPC) has been proposed. By calculating and analyzing the transfer matrix equation of the transverse magnetic (TM) waves, it can be concluded that the anisotropy generated by the magnetized plasma enables the TM waves to produce elliptical polarization. Therefore, the plasma columns are introduced in the design of a circulator. This circulator is constituted of six Y-type junctions. The direction of the magnetic field can be individually controlled by each junction. Therefore, the proposed path-reconfigurable circulator employs six Y-type junctions to realize the five paths reconfigurability when TM waves incident from the same port. The transmission characteristics of the circulator are simulated. The results show that the designed magnetized PPC can achieve the aim of five paths reconfigurable with the insertion losses of output port 2 (P2) to output port 6 (P6) are -0.889 dB, -1.18 dB, -1.26 dB, -1.29 dB, and -1.79 dB at operating frequency of 0.4882 (ωα/2πc).

提出了一种基于Y型等离子体光子晶体（PPC）的六端口路径可重构循环器。通过计算和分析横向电磁波的传递矩阵方程，可以得出结论，磁化等离子体产生的各向异性使TM波产生椭圆极化。因此，等离子柱被引入循环器的设计中。该循环器由六个Y型结组成。磁场的方向可以由每个结单独控制。因此，提出的路径可重构环行器采用六个Y型结，当TM波从同一端口入射时，实现了五个路径的可重构性。模拟了循环器的传输特性。