Abstract: A coupling assembly includes multiple composite substrate layers and a flange layer fusion bonded together in a stacked arrangement. The substrate layers are positioned on top of the flange layer and include embedded signal processing circuitry connected to a signal input and a signal output. A cavity is formed through an area of the substrate layers to expose signal connection terminals. These signal connection terminals are coupled to the embedded signal processing circuitry and they enable the addition of a circuit element to the assembly after the fusion bonding of the flange and substrate layers, and they enable the coupling of that added element to the signal processing circuitry.

Abstract: A circuit assembly includes multiple substrate with a regions of embedded signal processing circuitry can be connected to a region of adjustable signal processing circuitry and a cavity formed through an area of the substrate layers to expose signal connection terminals. These signal connection terminals are connected to the embedded signal processing circuitry and/or to the customizable circuitry and enables the addition of a circuit element to the assembly after the bonding of the substrate layers and enables the connection of that added element to the signal processing circuitry and to the adjustable processing circuitry.

Abstract: A coupling assembly includes multiple composite substrate layers and a flange layer fusion bonded together in a stacked arrangement. The substrate layers are positioned on top of the flange layer and include embedded signal processing circuitry connected to a signal input and a signal output. A cavity is formed through an area of the substrate layers to expose signal connection terminals. These signal connection terminals are coupled to the embedded signal processing circuitry and they enable the addition of a circuit element to the assembly after the fusion bonding of the flange and substrate layers, and they enable the coupling of that added element to the signal processing circuitry.

Abstract: A microwave coupler is constructed in a multilayer, vertically-connected stripline architecture provided in the form of a microwave integrated circuit that has a homogeneous, multilayer structure. Such a coupler has a vertically-connected stripline structure in which multiple sets of stripline layers are separated by interstitial groundplanes, and wherein more than one set of layers has a segment of coupled stripline. A typical implementation operates at frequencies from approximately 0.5 to 6 GHz, although other frequencies are achievable.