The results of modeling and optimization of the triangular structure of the circulator using a coplanar topology in the centimeter wavelength range. Simulation is carried out using the package Ansys Electronics 18 by finite element method. The results of simulation and optimization for roll film of yttrium iron garnet (x and y) with a thickness of 50 µm allowed us to design a circulator having at the operating frequency 13,565 -24,58 GHz isolation dB insertion loss -2,54 dB, return loss dB -9,82. Designed as a circulator containing the x and y film with a thickness of 37 microns, which at the operating frequency of 13.65 GHz has -24,35 isolation dB insertion loss -3,13 dB, return loss dB -8,82.
coplanar triangular circulator, S-parameters, a film of yttrium iron garnet
1. Wen C.P. Coplanar waveguide: a surface strip transmission line suitable for a nonreciprocal gyromagnetic device applications / C.P. Wen. Proc. GMTT International Microwave Symposium, Dallas, USA, — 1969, pp. 110–115.
2. Ogasawara N.N. Coplanarguide and slotguide junction circulator / Ogasawara and M. Kaji, Electric Lett., 1971, V. 7. — № 9 — pp. 220–221.
3. Helszain J. Circulators using planar triangular resonators / J. Helszain, D.S. James, W. Terence Nisbet. IEEE Transacations on Microwave Theory and Techniques, 1979, V. MTT27 — № 2 — pp. 188–193.
4. ElBouslemti R. Conception of a coplanar circulator using a triangular structure for application at XBand frequency / R. ElBouslemti, F. SalahBelkhodja, D. Vincent, R. Naoum. IOSRJECE, 2013, V. 8. — pp. 31–37.
5. ElBouslemti R. Miniature triangular circulator with coplanar waveguide structure / R. ElBouslemti, F. SalahBelkhodja. International Journal of Electronics and Electrical Engineering (IJEEE), 2014, V. 2. — № 3 — pp. 183–187.
