Abstract
Junction circulators using finline circuits may be realized by employing planar or turnstile ferrite resonators. The paper describes a finline turnstile circulator at 21 GHz, comprising a directly coupled evanescent junction of three E-plane WR42 waveguides symmetrically loaded by H-plane open gyromagnetic resonators. The degenerate counter-rotating eigenvalues of the device correspond to the even solution of two coupled quarterwave long resonators; the junction is separately cut-off for the in-phase eigenvalue.
| Original language | English |
|---|---|
| Pages (from-to) | 279-281 |
| Number of pages | 3 |
| Journal | IEE Proceedings H: Microwaves, Antennas and Propagation |
| Volume | 135 |
| Issue number | 4 |
| Publication status | Published - Aug 1988 |