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This paper presents a fully integrated BPSK (Binary Phase Shift Keying) Transmitter Front End for Ultra-Wideband (UWB) applications, designed in 130 nm CMOS technology. A simple architecture based on parallel pulse generator blocks in parallel is proposed to produce 9th derivative Gaussian pulses. In addition to the pulse generator, the circuit comprises a passive balun circuit, a common source amplifier,...
This paper presents a novel compact pulse generator circuit for applications in IR-UWB systems designed in 130nm CMOS technology. A 10th order derivative Gaussian pulse is generated using charge pump circuits, which consists of a combination of positive and negative edge blocks. The circuit was simulated after layout using LTSpice, and the results show a pulse amplitude of 130mV, with a pulse duration...
This paper presents the accurate synthesis of a narrow-band CMOS Low Noise Amplifier (LNA) using an optimization-based approach. Multi-objective information and the corners of the fabrication process are used in the synthesizer to simultaneously optimize impedance matching, performance parameters and circuit robustness. The synthesis approach combines the Simulated Annealing algorithm with the crossover...
A comparison of Y-parameters and S-parameters methodologies for the calculus of the quality factor (Q) in integrated inductors, is analyzed in this paper. For this reason two inductors are compared, one with low (planar inductor) and another with high (cross inductor) electric field coupling effects, in order to determine its influence on the Q calculus. The experimental results shows that assumptions...
In this paper, a new design for an Impulse Radar UWB transmitter using an 180nm CMOS process is presented. A 2nd order derivative Gaussian pulse is generated using two Phase Detectors (PDs), which consist of an n-latch and a p-latch to generate a single UWB pulse without any filtering and matches the FCC mask. The Gaussian impulse achieves a very small pulse of 288ps width, 160mVpp amplitude, and...
This paper presents a new beamforming transmitter, Ultra Wide Band (UWB) pulse generator for contactless radar monitoring applications of vital signals. The system consists of a programmable delay circuit (PDC or τ), UWB pulse generator circuit and an array of Vivaldi planar antennas. Also, a new CMOS PDC controller is developed in order to provide pulse beamforming. The circuit was designed using...
This paper presents a fully integrated low-power 7th derivative Gaussian pulse generator for UWB applications designed in 180nm CMOS technology. We propose a simple architecture based on parallel pulse generator blocks that produce Gaussian pulses, and a pulse shaping stage which adjusts each pulse amplitude individually. The whole circuit has been simulated and the results have demonstrated the circuit...
This paper presents a design of an UWB PPM — Pulse Position Modulation transmitter based on a 1.8V, 0.18μm CMOS technology. We propose a pulse generator using modified Nand gate as a Phase Detector (PD) with an effective phase difference of 73ps. At the PD output an extra derivative circuitry exists. The whole circuit has been simulated using LTSpice and the results had demonstrated the circuit capability...
This paper presents a design of a transmitter pulse generator UWB (Ultra-Wideband) in standard 180nm MOSIS/CMOS technology. We proposed a 5th derivative Gaussian Pulse Generator using a compact Phase Detector (PD) that was designed with dynamic n-blocks and n-latches, and using a delay circuit of a modified pseudo-nMOS inverter architecture. The whole circuit has been simulated using LTSpice and the...
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