Kamran Entesari

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—In this paper, a CMOS on-chip sensor is presented to detect dielectric constant of organic chemicals. The dielectric constant of these chemicals is measured using the oscillation frequency shift of an LC voltage-controlled oscillator (VCO) upon the change of the tank capacitance when exposed to the liquid. To make the system self-sustained, the VCO is(More)
—A low drop-out (LDO) regulator with a feed-forward ripple cancellation (FFRC) technique is proposed in this paper. The FFRC-LDO achieves a high power-supply rejection (PSR) over a wide frequency range. Complete analysis and design steps of the FFRC-LDO are presented in this paper. Kelvin connection is also used to increase the gain–bandwidth of the LDO(More)
—This paper presents a 23–32 GHz wideband BiCMOS low-noise amplifier (LNA). The LNA utilizes coupled-resonators to provide a wideband load. To our knowledge, the proposed LNA achieves the widest bandwidth with minimum power consumption using 0.18 m BiCMOS technology in K-band. Analytical expressions for the wideband input matching, gain, noise figure and(More)
—A wideband low-noise amplifier (LNA), which is a key block in the design of broadband receivers for multiband wireless communication standards, is presented in this paper. The LNA is a fully differential common-gate structure. It uses multiple feedback paths, which add degrees of freedom in the choice of the LNA transconductance to reduce the noise figure(More)
—In this paper, dielectric constants of lossy organic liquids are measured using oscillation frequency shifts of a negative resistance voltage-controlled oscillator (VCO). The design and working principle of the oscillator and the effect of material loss are presented in detail. The proposed method provides relatively large frequency shifts of 10–110 MHz(More)
—In this letter, a miniaturized, ultra-wideband (UWB) filter with notch using a slow-wave co-planar waveguide (CPW) multiple-mode resonator (MMR) is presented. By employing a slow-wave CPW MMR, the resonator length is reduced by 40% at mid-band frequency compared to the conventional CPW MMR. The proposed UWB filter employs stub-loaded microstrip-CPW(More)