@article{CTT100887825,
  author = {S. Chen and T. Tomura and J. Hirokawa and K. Itou and M. Suga and Y. Shirato and D. Uchida and N. Kita},
  title = {Design for operation in two frequency bands by division of the coupled region in a waveguide 2-plane coupler},
  journal = {IEICE Transactions on Electronics},
  year = 2022,
}