A novel maize variety designated PH11SY and seed, plants and plant parts thereof. The measuring element has a single-piece structure. The first chassis includes a protrusion to be engaged with the notches so as to be moved together with the light guide plate and the reflection sheet in response to a movement of the first chassis along the light guide plate. 05 \u03bcm within a pore diameter range of 0. The impedance of the base element is thus changed, resulting in a change in the delay through the meander line tuning module as the propagation constant.