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The layout of large scenes can be a time–consuming and tedious task. In most current systems, the user must position each of the objects by hand, one at a time. This paper presents a constraint–based automatic placement system, which allows the user to quickly and easily lay out complex scenes. The system uses a combination of automatically– generated(More)
In this work, a low cost Bluetooth Low Energy (BLE) transceiver for wireless sensor network (WSN) applications, with a receiver (RX)-matching network-reusing power amplifier (PA) load inductor, is presented. In order to decrease the die area, only two inductors were used in this work. Besides the one used in the voltage control oscillator (VCO), the PA load(More)
In this work, a four-band (Band 34 and Band 38–40) TD-LTE (Time Division-Long Term Evolution) transmitter (TX) is presented and fabricated in a 0.13µm CMOS technology. The TX adopted a direct up-conversion structure and integrated a fine digital variable gain amplifier (VGA), segmented R-2R ladder DACs, high linearity up-conversion mixers and(More)
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