An antenna duplexer has a first filter and a second filter coupled to respective signal terminals and to a common node. The top level of the architecture is an array of the B16\xd716 tiles arranged in a rectangular array and enclosed by IO blocks on the periphery. The recording layer is formed by addition of an additive which functions as reducing agent to an azo metal complex dye having a triazole structure. The planar optical radiation concentrator exhibits the potential for light weight, high concentration ratio and efficiency, and the ability for passive tracking. A first half page data is read based on the first cell current and the first reference current.