An Implementation of a Sub-nanosecond UWB Pulse Generator
نویسندگان
چکیده
In this paper, we present an ultra-wideband (UWB) pulse generator based on the step recovery diode. The principle of operation and the architecture of the developed pulse generator are explained. Furthermore, hardware implementation issues and the details on the generated UWB pulse including its peak voltage equal to 8.9 V, its full width at half maximum (fwhm) equal to 240 ps, and frequency spectrum are provided. The UWB pulse generator incorporates not only a high frequency part, but also a trigger signal part that is based on a low-power MSP430F2121 microcontroller. The averaged total power consumption of the complete UWB pulse generator is 185 mW @ 3.3 V supply voltage.
منابع مشابه
A 10 GS/s Distributed Waveform Generator for Sub-Nanosecond Pulse Generation and Modulation in Standard Digital CMOS
A distributed waveform generator is presented for sub-nanosecond pulse generation in UWB impulse radios. It timeinterleaves multiple digital pulse generators, and uses an on-chip transmission line for wideband pulse combining. Compared to other UWB pulse generation and shaping solutions, it is low power and fully reconfigurable. A 10-tap, 10GS/s prototype was implemented in standard digital CMO...
متن کاملDesign and development of High Power Ultra Wideband Systems
High power ultra wideband (UWB) systems can be used for various applications like buried target detection, electrical characterization of materials, space debris detection and as a source for vulnerability studies on electronic circuits. Two high power UWB radiator systems have been developed at APPD, BARC Mumbai. The first one is a 120 kV, 66 Ohm system which uses balanced Transverse Electroma...
متن کاملA Novel Picosecond Pulse Generation Circuit Based on SRD and NLTL
Because of the importance of ultra-wideband (UWB) radar in various applications, short pulse generation in UWB systems has attracted a lot of attention in recent years. In order to shorten the pulse, nonlinear transmission line (NLTL) is imported, which expands the application of step recovery diode (SRD) for pulse generation. Detailed analysis and equations for this SRD and NLTL-based pulse ge...
متن کاملA time domain spherical near-field measurement facility for UWB antennas employing a hardware gating technique
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 d...
متن کاملChannel Capacity Limitations versus Hardware Implementation for UWB Impulse Radio
—Starting from the Shannon channel capacity, we propose an IR-UWB channel capacity based on the delay spread for multipath time variant channels. This IR-UWB channel capacity is obtained from the no ISI (Inter Symbol Interference) assumption and for binary modulations. The impact of the kind of implementation is considered on the IR-UWB channel capacity. This study is lead for mixed and mostly ...
متن کامل