Edge-triggered driver circuit for ultra-wideband pulse generator with cascode impulse shaping

2012 ◽  
Author(s):  
P. Pongsoon ◽  
K. Kaemarungsi ◽  
D. Bunnjaweht
Keyword(s):  
Pulse Generator ◽  
Ultra Wideband ◽  
Driver Circuit

Design and Device Mismatch Analysis of CSS–UWB Pulse Generator

2021 ◽  
Author(s):  
Saif Benali ◽  
Imen Barraj ◽  
Hatem Trabelsi
Keyword(s):  
Integrated Circuit ◽  
Spread Spectrum ◽  
Pulse Generator ◽  
Random Parameter ◽  
Pulse Frequency ◽  
Ring Oscillator ◽  
Ultra Wideband ◽  
Ramp Generator ◽  
Device Mismatch ◽  
The Impact

This paper presents the design of a Chirp Spread Spectrum (CSS), ultra-wideband (UWB), pulse generator (PG) and device mismatch impact on its performance. The proposed CSS-PG is built using a differential ring oscillator (RO) controlled by a ramp generator, allowing varying linearly the pulse frequency with time over the CSS pulse duration. Device mismatches and random variations during integrated circuit manufacturing are the most critical imperfections in high precision differential UWB voltage controlled RO circuit. These mismatches lead to behavioral variations of the PG. The proposed CSS-UWB-PG is designed and analyzed using CMOS 0.18[Formula: see text][Formula: see text]m technology. The CSS-PG presents an output swing of 266[Formula: see text]mV Vpp for 20[Formula: see text]nsec and consumes 1.72[Formula: see text]mW for a PRF of 10[Formula: see text]MHz. The simulated PSD covers the UWB low band from 3[Formula: see text]GHz to 5[Formula: see text]GHz and complies with the FCC regulations. For [Formula: see text] mismatch, the simulation results show a maximum relative accuracy on oscillation frequency and phase noise of 3.43% and 6.9%, respectively. Monte Carlo and process simulation are performed to study the impact of the random parameter variation on this CSS-PG. Theses simulations show the robustness of the proposed design as the PG PSD is still inside the FCC-UWB mask and its bandwidth is greater than 500[Formula: see text]MHz.

Design and Simulation of the Avalanche Transistor Pulse Generator

2013 ◽  
Vol 760-762 ◽  
pp. 92-95
Author(s):  
Tai Hua Wang ◽  
Yan Ming Zhang
Keyword(s):  
Wireless Communication ◽  
Communication Technology ◽  
Coal Mine ◽  
Pulse Generator ◽  
Pulse Amplitude ◽  
Ultra Wideband ◽  
Wave Form ◽  
Safe Level ◽  
Pulse Transmission ◽  
Wideband Wireless Communication

Ultra-wideband wireless communication technology is brought, in the coal mine communications in this paper in order to raising the safe level of communication in coal mine. Ultra-wideband wireless communication is a system which is transmitted by the extremely narrow pulse transmission. An avalanche transistor is the core of extremely narrow pulse circuit. Narrow pulse wave form can be simulated by multisim software. Acquiring the results of simulation is the extremely narrow pulse whose pulse amplitude ranging from 10 v to dozens v and pulse width is about 3 seconds. In addition to this circuit carries on the theoretical analysis, the results is quite consistent with the simulation value in this paper.

scholarly journals A time domain spherical near-field measurement facility for UWB antennas employing a hardware gating technique

2010 ◽  
Vol 8 ◽  
pp. 243-250 ◽  
Author(s):  
M. D. Blech ◽  
M. M. Leibfritz ◽  
R. Hellinger ◽  
D. Geier ◽  
F. A. Maier ◽  
...  
Keyword(s):  
Time Domain ◽  
Pulse Generator ◽  
Low Cost ◽  
Near Field ◽  
Ultra Wideband ◽  
Time Interval ◽  
Measurement Facility ◽  
Antenna Measurement ◽  
Uwb Antennas ◽  
Equivalent Time

Abstract. A spherical near-field antenna measurement facility employing a time domain hardware gating technique is presented. On-off keyed sinusoidal impulses are used as stimuli requiring wideband antennas with a bandwidth in excess of 400 MHz. The received signal is evaluated in the time interval after reaching the steady state and before multipath components arising in the non-ideal anechoic chamber distort the signal. An application specific pulse generator synthesizing sinusoidal impulses with a sub-nanosecond settling time and a low-cost equivalent time (ET) sampling receiver developed and optimized for this particular purpose are described. Measurement results of typical ultra-wideband (UWB) antennas show a significant improvement of the measured antenna pattern compared to conventional techniques.

Modeling and Jitter Improvement of SRD-Based Ultra-Wideband Pulse Generator

2014 ◽  
Vol 62 (8) ◽  
pp. 1736-1747 ◽  
Author(s):  
Ali Kheirdoost ◽  
Gholamreza Moradi ◽  
Eessam Elkholy ◽  
Abdolali Abdipour ◽  
Aly E Fathy
Keyword(s):  
Pulse Generator ◽  
Ultra Wideband

A novel 7 Gbps low-power CMOS ultra-wideband pulse generator

2012 ◽  
Vol 6 (6) ◽  
pp. 406-412 ◽  
Author(s):  
M.A. Arafat ◽  
A.B.M. Harun-ur-Rashid
Keyword(s):  
Low Power ◽  
Pulse Generator ◽  
Ultra Wideband ◽  
Low Power Cmos
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