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The Fast TracKer (FTK) to Level-2 Interface Card (FLIC) of the ATLAS FTK trigger upgrade is the final component in the FTK chain of custom electronics to connect the system to the High-Level trigger (HLT). The FTK performs full event tracking using the ATLAS Silicon detectors for every Level-1(L1) accepted event at 100 kHz. The FLIC is a custom Advanced Telecommunications Architecture (ATCA) card...
In this article, a compact antenna is presented with an appropriate structure which has a good performance used on the dielectric and metallic objects. The loading bar and the meandered section are added to achieve a proper impedance matching between the antenna input terminal and the reference microchip whose impedance is 13-j143Ω. The antenna's wings are utilized to improve the performance when...
Air-coupled piezoelectric transducers made of 1–3 connectivity PMN-PT single crystal composites (centre frequency around 1.0 MHz) were designed, built and characterized. Several matching layers configurations have been tested in order to achieve optimum sensitivity or bandwidth or both. Results are compared with those obtained from similar transducers made using 1–3 PZT ceramic piezocomposites. Both...
In this talk, we report on a pair of monolithically integrated multi-wavelength transmitter and receiver PICs employing polarization multiplexing and quadrature phase-shift keying modulation to provide an aggregate bandwidth greater than 1Tbps on a single chip.
We have designed and fabricated novel, free-standing GaAs nano-whisker (NW) detectors and demonstrated their femtosecond photoresponse. The NW device was characterized using a femtosecond, time-resolved (THz bandwidth) electro-optic sampling method. Electrical photoresponse transients as short as 600 fs were recorded and their frequency-domain analysis indicated that the intrinsic NW photodetector...
This paper presents the design of ultra-wideband time-delay lines in microwave frequency inspired by the composite right/left-handed transmission line (CRLH TL) unit cell. A rotated version of the conventional CRLH TL unit cell is used to achieve an ultrawide bandwidth. For comparison, the time-delay lines using the conventional CRLH TL unit cells, right-handed transmission line (RH TL) and periodic...
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