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In this paper, a novel analytical model for current-mode-logic D flip-flop (CML-DFF) frequency divider is presented. With the help of this model, a tunable inductor-less divide-by-2 CML-DFF divider operating from 0.8–30 GHz with digital frequency calibration is designed and simulated in TSMC 90 nm CMOS process. The proposed divider has a tunable frequency locking range of 190% at peak-to-peak injection...
A 1.25 GHz two-stage band-pass filter fabricated in TSMC 90 nm CMOS process is presented. The Q-compensate technique is used for better filtering performance, and a notch circuit is added to achieve the desired image rejection of 40 dB. Measured gain of this filter is 16.3 dB at 1.25 GHz with the pass band width of 20 MHz. The out-of-band suppression at 100 MHz offset and image rejection at 1.1 GHz...
This paper presents a 60GHz planar on-chip antenna fabricated with a standard 0.18-μm CMOS process. The antenna has a U-shaped radiating patch, which is fed by a 50-Ω coplanar waveguide (CPW). It has a compact size of 1.5mm × 1.5mm × 0.26mm. The simulation work is optimized by using an FEM-based 3-D commercial EM software Ansoft HFSS. Simulated results shows that the on-chip antenna has a good impedance...
This paper presents a 45GHz on-chip antenna for Q-LINKPAN applications. The antenna has a simple triangle radiating patch that is fed by a 50-Ω modified coplanar waveguide (CPW) structure. Implemented results denote this antenna has a favorable impedance bandwidth from 40–50 GHz, where nearly omni-directional radiation patterns and stable gain are also obtained and shown. Besides, it has a very compact...
This paper presents a 60GHz planar on-chip antenna fabricated with a standard 0.18-μm CMOS process. The antenna has a U-shaped radiating patch, which is fed by a 50-Ω coplanar waveguide (CPW). It has a compact size of 1.5mm × 1.5mm × 0.26mm. The simulation work is optimized by using an FEM-based 3-D commercial EM software Ansoft HFSS. Simulated results shows that the on-chip antenna has a good impedance...
This paper presents a 45GHz on-chip antenna for Q-LINKPAN applications. The antenna has a simple triangle radiating patch that is fed by a 50-Ω modified coplanar waveguide (CPW) structure. Implemented results denote this antenna has a favorable impedance bandwidth from 40–50 GHz, where nearly omni-directional radiation patterns and stable gain are also obtained and shown. Besides, it has a very compact...
A two-step open-loop VCO-based ADC with 1st-order noise shaping and intrinsic nonlinearity mitigation is presented. With the open-loop structure and highly digital building blocks, a robust performance, high bandwidth and high efficiency is achieved. The nonlinearities of the VCOs in the coarse and fine quantizers are improved by a distortion cancellation and a voltage swing reduction scheme respectively...
Micromachining techniques have been employed to manufacture microparticles bearing an engraved dot-type signature for biomolecular encoding. In addition, the code introduced on the particle face is a straightforward visible feature that is easily recognizable with the use of optical microscopy on the grounds of the CdSe Quantum dots (QDs) as fluorescent probes. In this paper, An integrated CMOS circuit...
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