Abstract: An improved a glazing unit including a glass panel which is low in reflectance for RF radiation, a coating system which is high in reflectance for RF radiation disposed on the said glass panel and creating onto the glazing unit a dual band bandpass filter. The glazing unit further includes at least one frequencies selective decoated portion of the coating system extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z; having a width, DW, measured along the longitudinal axis, X, and a length, DL, measured along the vertical axis, Z. The at least one frequencies selective decoated portion includes a first decoated element that includes a plurality of unit cells forming a regular grid of n rows by m columns unit cells and a plurality of second decoated elements.

Abstract: A process of determination of a percentage of glass surface to treat with a decoating process in a defined enclosed space in order to reach a predetermined level of electromagnetic reception and/or transmission at a predetermined frequency, using a database. The process contains the following: measurement of the inside and/or outside electromagnetic signal amplitude; calculation of an expected attenuation level; identification, in said database, of reference percentages of treated surface where the corresponding reference attenuation levels are inferior or equal to the expected attenuation level; determination of a percentage of glass surface to treat in the defined enclosed space corresponding to the identified reference percentage of treated surface where the corresponding reference attenuation level is minimum.

Abstract: A glazing unit with a glass panel that is low in reflectance for RF radiation, a coating system that is high in reflectance for RF radiation disposed on the glass panel and creating onto the glazing unit a dual band bandpass filter. The glazing unit further features at least one frequencies selective decoated portion of the coating system extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z; having a width, DW, measured along the longitudinal axis, X, and a length, DL, measured along the vertical axis, Z. The frequencies selective decoated portion includes a first decoated element with a plurality of unit cells forming a regular grid, and a plurality of second decoated elements wherein a second decoated element is placed in each unit cell of the first decoated element and no second decoated element is in contact with the first decoated element.

Abstract: A glazing unit containing a glass panel which is low in reflectance for RF radiation, and a coating system which is high in reflectance for RF radiation disposed on the glass panel. The glazing unit also contains a frequencies selective decoated portion of the coating system extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z, and having a width, DW, measured along the longitudinal axis, X, and a length, DL, measured along the vertical axis, Z, creating onto the glazing unit a bandpass filter. The frequencies selective decoated portion contains a decoated element allowing determined frequencies to pass thought the glazing unit.

Abstract: An improved a glazing unit including a glass panel which is low in reflectance for RF radiation, a coating system which is high in reflectance for RF radiation disposed on the said glass panel and creating onto the glazing unit a dual band bandpass filter. The glazing unit further includes at least one frequencies selective decoated portion of the coating system extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z; having a width, DW, measured along the longitudinal axis, X, and a length, DL, measured along the vertical axis, Z. The at least one frequencies selective decoated portion includes a first decoated element that includes a plurality of unit cells forming a regular grid of n rows by m columns unit cells and a plurality of second decoated elements.

Abstract: A glazing unit comprising at least a glass panel and an antenna unit. The antenna unit includes an antenna a fixing means for fixing the antenna to the glass panel so that a space S through which air can flow is formed between the glass panel and the antenna with a light transmission of at least 30%, preferably at least 50% and more preferably at least 65%.