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A 60-GHz vector sum phase shifter with single-ended-to-differential function for phased array receiver using 90-nm LP CMOS technology is presented. This phase shifter incorporates a four-way quadrature power divider as a vector generator with two variable gain amplifiers and a vector modulator to achieve full-360° phase synthesizing. For 4-bit operation (22.5° phase resolution) from 57–64 GHz, this...
A fully integrated 10??10 electrochemical impedance spectroscopy array is designed for label-free biomolecular detection applications. Each biosensor pixel includes an on-chip bio-functionalized electrode and a direct-conversion receiver capable of measuring complex admittance levels as low as 10??????-1 with a dynamic range larger than 90 dB in a 10 Hz-to-50 MHz frequency range.
This paper presents the design of a 60 GHz phase shifter integrated with a low-noise amplifier (LNA) and power amplifier (PA) in a 65 nm CMOS technology for phased array systems. The 4-bit digitally controlled RF phase shifter is based on programmable weighted combinations of I/Q paths using digitally controlled variable gain amplifiers (VGAs). With the combination of an LNA, a phase shifter and part...
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