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A wideband and high linearity IF programmable gain amplifier (PGA) is presented for 60GHz wireless receivers. The core of the circuit is a differential amplifier based on the “flipped voltage follower” (FVF) cell. The FVF cell introduces an additional zero and extends the bandwidth without extra power consumption. The presented PGA has been implemented in 65nm CMOS, and the simulation results show...
This paper reports on the development of a 10-bit chipless RFID tag on flexible plastic substrate. This tag is based on sympathetic oscillations of a group of LC circuits with different resonant frequencies. Sophisticated designs including the placement of capacitors involved in each LC circuit, and various LC combinations are examined for the trade-off of the readability and the tag sizes. Moreover,...
A fully metallic ink-jet printed passive chipless RFID tag on paper substrate is presented. The tag consists of an ultra-wide-band antenna, a microstrip transmission line with distributed shunt capacitors as information coding element which is reconfigurable by ink-jet printing process. Tapered microstrip line is employed to overcome the limitations of low conductivity and thin film thickness of ink-jet...
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