A Variable Phase Shifter Using a Movable Waffle Iron Metal Plate and Its Applications to Phased Array Antennas. - Hideki Kirino; Koichi Ogawa; Takeshi Ohno (IEICE Trans. Commun., 2008)

Wavelength Analysis Using Equivalent Circuits in a Fast and Slow Wave Waffle-Iron Ridge Guide. - Hideki Kirino; Kazuhiro Honda; Kun Li; Koichi Ogawa (IEICE Trans. Commun., 2017)

A Waffle-Iron Ridge Guide with Combined Fast- and Slow-Wave Modes for Array Antenna Applications. - Hideki Kirino; Kazuhiro Honda; Kun Li; Koichi Ogawa (IEICE Trans. Commun., 2018)