22-29GHz Ultra-Wideband CMOS Pulse Generator for Collision Avoidance Short Range Vehicular Radar Sensors

Öncü, Ahmet; Badalawa, B.B.M. Wasanthamala; Wang, Tong; Fujishima, Minoru

doi:10.1109/aspdac.2007.357957

Cited by 7 publications

(3 citation statements)

References 3 publications

(6 reference statements)

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“…on the 3.1-10.6 GHz band, some pulse generators target for other bands [33,47,57,[59][60][61]. The way to generate pulses for high-frequency band UWB applications can be classified into three categories.…”

Section: Discussionmentioning

confidence: 99%

Gaussian pulse approximation using standard CMOS and its application for sub‐GHz UWB impulse radio

Zhang

El-Gamel

Bayoumi

2008

Circuit Theory & Apps

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SUMMARYGaussian pulse is widely used in communication systems. The true Gaussian function is not physically realizable, but it can be approximated through linear functions. This paper presents a Gaussian pulse approximation approach to generate a quasi-Gaussian pulse by using the transient response of a CMOS inverter. The basic structure of the proposed design includes a digital variable square pulse generator, a Gaussian pulse generator and a small antenna model. The digital variable square pulse generator makes the amplitude and width of the generated quasi-Gaussian pulse tunable. The proposed pulse generator works well for three different electrical small antenna models. The simulation results show that the generated pulse approximates the Gaussian shape very well and the radiated signal at the antennas is compliant with the Federal Communication Commission's spectral mask for the 0-960 MHz band. The simple structure of this Gaussian pulse generator lends itself to a low-power, single-chip UWB transceiver solution.

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Section: Discussionmentioning

confidence: 99%

Gaussian pulse approximation using standard CMOS and its application for sub‐GHz UWB impulse radio

Zhang

El-Gamel

Bayoumi

2008

Circuit Theory & Apps

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“…The two major drawbacks of this technique are the output waveform that contains tails due to the bandpass roll-off filter characteristics and the second one is the power consumption that is very high ( mW). In [11], a compact and low-power CMOS PG operating at 29 GHz is presented. With this transmitter architecture, neither the output frequency (due to the very high pulling) nor the pulsewidth can been controlled.…”

Section: Introductionmentioning

confidence: 99%

UWB in Millimeter Wave Band With Pulsed ILO

Deparis

Loyez

Rolland

et al. 2008

IEEE Trans. Circuits Syst. II

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A simple but efficient transmitter for ultra-wide-band impulse radio wavelet generator in millimeter-wave band is presented. It is suitable for RADAR, gigabit wireless personal area network, and localization applications. This front-end involves a subharmonic injection-locked oscillator driven by a pulse generator (PG) with fast transition time ( 25 ps). Its frequency oscillation is locked on one of the numerous harmonic components generated by the PG around 30 GHz. This allows to obtain a stable pulse-to-pulse phase condition and a very low phase noise ( 110 dBc/Hz@100 kHz). Two monolithic microwave integrated circuits have been designed using a commercial pseudomorphic high-electron mobility transistor foundry process (ft = 100 GHz). The first one is a PG with position and width modulation capabilities, and the second one is an oscillator with a 30-GHz free-running output frequency. The start of the oscillations is studied, using the external quality factor ext as main factor.Index Terms-Injection-locked oscillators (ILOs), millimeter wave (MMW) field-effect transistor oscillators, pulse doppler radar, pulse generation, pulse-shaping methods, switching transients, ultra-wide-band (UWB), voltage-controlled oscillators.

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“…For example, UWB technology can be used in ground or wall penetrating radar [1] , radar sensor [2] , radar imaging [3] , and precision locating and tracking. Under the authorization of Federal Communications Commission (FCC), UWB can develop communication systems, especially those requiring short range and high data rates.…”

Section: Introductionmentioning

confidence: 99%

Model and simulation of a new ultra-narrow trigger frequency alterable pulse generator

Yang

Cao

Zhan

et al. 2011

J. Shanghai Jiaotong Univ. (Sci.)

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Two new kinds of ultra-narrow trigger frequency alterable picosecond pulse generator are presented. One can produce positive pulses and the other can produce negative pulses. The two pulse generators are subdivided into three parts: signal driving circuit, differentiator network and pulse shaping circuit. The pulse shaping circuit is made of step recovery diode (SRD) and short-circuit microstrip line. A positive pulse with width of 54 ps (50%-50%), rising time of 30 ps (10%-90%) and falling time of 32 ps (90%-10%), and a negative pulse with width of 54 ps (50%-50%), rising time of 30 ps (90%-10%) and falling time of 30 ps (10%-90%) are achieved in simulation. All of the components are ready-made and inexpensive. They can be applied in ultra-wideband (UWB) communication system, such as transmitters and receivers. Key words: pulse generator, ultra-narrow, step recovery diode (SRD), pulse shaping circuit CLC number: TN 92 Document code: A IntroductionUltra-wideband (UWB) technology has many attractive characteristics, such as low power, strong penetrating ability, high accuracy of positioning and high data rates, and thus can be a good candidate in the application of radar and communication systems. For example, UWB technology can be used in ground or wall penetrating radar [1] , radar sensor [2] , radar imaging [3] , and precision locating and tracking. Under the authorization of Federal Communications Commission (FCC), UWB can develop communication systems, especially those requiring short range and high data rates. A pulse generator is a key component in the UWB subsystems, such as receivers and transmitters. Moreover, a pulse generator whose input frequency is alterable to a certain degree, and whose duration is extremely short is desirable in practical use.Conventionally, there are several ways to design a pulse generator, such as logic circuit [4] , nonlinear transmission line (NLTL) [5] , photonic domain techniques [6] ,

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22-29GHz Ultra-Wideband CMOS Pulse Generator for Collision Avoidance Short Range Vehicular Radar Sensors

Cited by 7 publications

References 3 publications

Gaussian pulse approximation using standard CMOS and its application for sub‐GHz UWB impulse radio

Gaussian pulse approximation using standard CMOS and its application for sub‐GHz UWB impulse radio

UWB in Millimeter Wave Band With Pulsed ILO

Model and simulation of a new ultra-narrow trigger frequency alterable pulse generator

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