Abstract: The present disclosure generally relates to an apparatus (100) and method for measuring an object (200) embedded in a structure (210). The apparatus (100) comprises: a first antenna (110a) and a second antenna (110b) with respective perpendicular and parallel polarizations; a measurement instrument (120); and a control system (130). The measurement instrument (120) transmits and measures radio signals reflected from the object (200). The control system (130) generates a first representation (250) and a second representation (260) of the object (200) based on the measured radio signals from the first antenna (110a) and second antenna (110b), respectively. The control system (130) then measures a size of the object (200) from the first and second representations (250,260).

Abstract: An integrated antenna element includes a top PCB and a bottom PCB arranged in a laminate structure. Radiating surface units are arranged between the top PCB and the bottom PCB. A first balun and a second balun set separately set on the top and bottom PCBs respectively, each for different polarization. The integrated antenna element is capable of transmitting signals to a base station and receiving signals from a base station.

Abstract: An integrated antenna unit includes an integrated radiating element; a reflect board beneath the integrated radiating element without a direct contact therebetween; and an RF component device for processing signal of interest for a radio unit. The RF component device is placed beneath the integrated radiating element and on the reflecting board, and serves a support of a fixture structure of the radiating element to the reflecting board; whereby a space between the radiating element and the reflecting board can be efficiently used for the RF component device.

Abstract: An integrated antenna unit includes an integrated radiating element; a reflect board beneath the integrated radiating element without a direct contact therebetween; and an RF component device for processing signal of interest for a radio unit. The RF component device is placed beneath the integrated radiating element and on the reflecting board, and serves a support of a fixture structure of the radiating element to the reflecting board; whereby a space between the radiating element and the reflecting board can be efficiently used for the RF component device.

Abstract: An integrated antenna element includes a compact printed board and at least two dual-polarized radiating elements. The compact printed board includes a top PCB and a bottom PCB in a laminate structure. Each radiating element includes a radiating surface unit and a layered-balun. The radiating surface unit is placed between the top PCB and the bottom PCB. The layered-balun includes a first balun and a second balun set separately set on the different PCBs each for different polarization. An antenna unit and a multi-array antenna are accordingly obtained.

Abstract: Systems and methods for solid oxide fuel cell (SOFC) surface analysis. Exemplary embodiments include systems and methods for solid oxide fuel cell (SOFC) surface analysis, including a SOFC having a ceramic surface, a scanner adjacent the ceramic surface for collecting data related to the ceramic surface, a structure for retaining the SOFC with respect to the scanner, a device for collecting a processing the ceramic surface data and a process residing on the device, the process for analyzing and presenting the ceramic surface data.