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For original paper see Toker et al., ibid., vol.49. no.4, pp.718-21, 2001. In the above paper, Toker et al. maintain that the general solution of branch-line couplers is provided. In fact, the more general coupler was published previously by the author (see ibid., vol.40, pp.253-62, 1992). Simplifying the general structure in this paper by removing the lumped elements, one can get the branch-line coupler. A reply to these comments by Toker et al. is included.