Development of a compact monocycle pulse generator for <scp>UWB</scp> impulse radar applications

Lee, Doojin; Shaker, George; Melek, William

doi:10.1002/mop.32424

Cited by 11 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SRDs have been used to create Gaussian and monocycle pulses, and one such method was described in [18] by the authors who used a single SRD in a shunt combination to create a Gaussian pulse. Similarly, a single SRD utilized in a series combination for pulse generation was reported in [19]. Figures 4(a) and (b) show the single SRD arrangements for pulse generation in shunt and series combinations, respectively.…”

Section: Pulse Generators Using Step Recovery Diodes (Srds)mentioning

confidence: 89%

Pulse Generation and Compression Techniques for Microwave Electronics and Ultrafast Systems

Rahman

2023

Electromag. Sci.

View full text Add to dashboard Cite

Ultrabroadband systems and ultrafast electronics require the generation, transmission, and processing of high-quality ultrashort pulses ranging from nanoseconds (ns) to picoseconds (ps), which include well-established and emerging applications of time-domain reflectometry, arbitrary waveform generation, sampling oscilloscopes, frequency synthesis, through-wall radar imaging, indoor communication, radar surveillance, and medical radar detection. Impulse radar advancements in industrial, scientific, and medical (ISM) domains are, for example, driven by ns-scale-defined ultrawideband (UWB) technologies. Nevertheless, the generation of ultrashort ps-scale pulses is highly desired to achieve unprecedented performances in all these applications and future systems. However, due to the variety and applicability of different pulse generation and compression techniques, the selection of optimum or appropriate pulse generators and compressors is difficult for practitioners and users. To this end, this article aims to provide a comprehensive overview of ultrashort ns and ps pulse generation and compression techniques. The proposed and developed pulse generators available in the literature and on the market, which are characterized by their corresponding pros and cons, are also explored. The theoretical analysis of pulse generation using a nonlinear transmission line (NLTL) presented in the literature is briefly explained as well. Additionally, a holistic overview of these pulse generators from the perspective of applications is given to describe their utilization in practical systems. All of these techniques are well summarized and compared in terms of fundamental pulse parameters, and research gaps in specified areas are highlighted. A thorough discussion of previous research work on various topologies and techniques is presented, and potential future directions for technical advancement are examined.

show abstract

Section: Pulse Generators Using Step Recovery Diodes (Srds)mentioning

confidence: 89%

Pulse Generation and Compression Techniques for Microwave Electronics and Ultrafast Systems

Rahman

2023

Electromag. Sci.

View full text Add to dashboard Cite

show abstract

“…One is based on the microstrip transmission line theory, arranging a suitable short-circuited transmission line at the output of the Gaussian pulse. The reversed pulse along the transmission line is superimposed with the original one to form a monopulse [30]. However, the duration of the generated pulse is about twice that of the original pulse, and it is easy to cause multiple reflections, which is not desirable for the UWB detection system.…”

Section: Pulse-forming Circuit and Monopulse-forming Circuitmentioning

confidence: 99%

“…Although the output waveform shape was controllable, the ringing level was significant. Lee et al proposed a compact monopulse generator [30]. The circuit structure was simple, but the ringing level and the symmetry of the generated pulses were poor, which is not desired in certain scenarios.…”

Section: Introductionmentioning

confidence: 99%

A compact ultra-wideband sub-nanosecond pulse generator with step recovery diodes

Liu

Xiao

Lü

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

This article presents a compact ultra-wideband (UWB) sub-nanosecond monocycle pulse generator. The proposed circuit has simple structure and low cost which core components are step recovery diodes (SRDs). It is composed of power supply circuit, pulse drive circuit, short pulse forming circuit, and pulse shaping circuit. The transistor-based drive circuit is used to generate a drive pulse with sharp fall time. Then a sub-nanosecond pulsewidth is realized through the combination of two SRDs in series and parallel. Finally, a monocycle pulse is directly formed by the inductance-based differentiator. This design achieves a full pulsewidth of 406 ps with 260 mV peak-to-peak amplitude and a -10 dB bandwidth of 510 MHz to 6.1 GHz at a pulse repetition frequency (PRF) of 10 MHz square waveform. The symmetry and ringing level are 96.9 % and -25.3 dB, respectively, providing good symmetry and low ringing with a size of 55 × 15 mm. In actual experiments, two same UWB antennas with appropriate bandwidth are used to radiate monopulse to breast phantoms. The results and uncertainty analyses of the test system show that there are distinguishable differences under diverse tumor phantoms and locations, proving the proposed pulse generator is attractive for the application of UWB breast cancer detection.

show abstract

“…Besides commercial UWB radars, the literature reports other options where UWB pulses are generated at the circuit level. A popular technique employs non-linear devices such as steprecovery diode (SRD) [19], [20], [21], with help of transmission lines and P-type intrinsic N-type (PIN) switching diodes. In case a foundry is available for microelectronic processing, CMOS circuits have been used for the fast pulse generation, employing pulse compression implemented with digital logic blocks [22], or analog circuits operating in baseband [23].…”

Section: Hardwarementioning

confidence: 99%

UWB Radar Applied to Lane Occupation and Vehicle Classification

Perotoni¹,

Bordin²,

Castilho³

et al. 2023

JCIS

View full text Add to dashboard Cite

This article describes the use of a commercial UWB radar for vehicle classification and lane occupation detection using real-world data acquired in an urban environment. We compare two radar image processing schemes: one based on deep learning using raw data produced by the radar, and a second method employing traditional machine learning algorithms using features extracted from raw data. We verify experimentally that both schemes lead to reasonably accurate estimates without the need of large training sets.

show abstract

Development of a compact monocycle pulse generator for UWB impulse radar applications

Cited by 11 publications

References 18 publications

Pulse Generation and Compression Techniques for Microwave Electronics and Ultrafast Systems

Pulse Generation and Compression Techniques for Microwave Electronics and Ultrafast Systems

A compact ultra-wideband sub-nanosecond pulse generator with step recovery diodes

UWB Radar Applied to Lane Occupation and Vehicle Classification

Contact Info

Product

Resources

About