Learn More
Activation of brain alpha7 nicotinic acetylcholine receptors (alpha7 nAChRs) has broad therapeutic potential in CNS diseases related to cognitive dysfunction, including Alzheimer's disease and schizophrenia. In contrast to direct agonist activation, positive allosteric modulation of alpha7 nAChRs would deliver the clinically validated benefits of(More)
An integrated frequency sixtupler in SiGe BiCMOS technology is presented. It is composed of a nonlinear differential amplifier used as a frequency tripler followed by a Gilbert mixer used as a frequency doubler. The 3 dB bandwidth of the circuit is 15GHz in between 222 – 237GHz range with peak output power of −4 dBm for 0dBm input power. The(More)
This paper presents the design and comparison of three <inline-formula> <tex-math notation="LaTeX">$K$ </tex-math></inline-formula>-band sensing oscillators in the standard 0.25-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> SiGe:C BiCMOS technology featuring an open stub, a shunt stub, and a combination of both. The(More)
This paper presents both differential receiver and transmitter front-end modules for a 120 GHz phased array transceiver for the use in FMCW radar applications. A Gilbert-cell based vector modulator type I/Q phase shifter is accompanied by integrated LNA / PA in RX / TX channels fabricated with a 0.13&#x00B5;m SiGe BiCMOS technology with(More)
This paper presents a wideband and low phase noise millimeter-wave (mm-wave) voltage-controlled oscillator (VCO) fabricated in 130 nm BiCMOS technology. The output signal can sweep from 29.6 to 35.5 GHz, which corresponds to 18.1% tuning range. The LC-tank of the VCO consists of two coupled inductors and a binary weighted varactor bank. The secondary(More)
In this paper, a fractional-N phase-locked loop (PLL) with an integrated chirp generation circuit block for frequency-modulated continuous-wave (FMCW) radar systems is reported. The circuit is composed of a push-push voltage controlled oscillator (VCO), a feedback divider including pre-scaler and programmable divider stages, a phase-frequency detector(More)
  • 1