Receiver and Synchronization for UWB impulse radio signals

Departs, N.; Boé, A.; Loyez, Christophe; Rolland, N.; Rolland, P.A.

doi:10.1109/mwsym.2006.249534

Cited by 8 publications

(5 citation statements)

References 11 publications

(20 reference statements)

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“…The very simple demodulation scheme does not need any template generator such as in conventional PPM demodulators. The synchronization is described in [15]. This total baseband process (demodulation and synchronization) is fully analog and does not need any analog-to-digital converter, as proposed in some very-low consumption TAG.…”

Section: Uwb-ir Transceivermentioning

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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Section: Uwb-ir Transceivermentioning

confidence: 99%

UWB in Millimeter Wave Band With Pulsed ILO

Deparis

Loyez

Rolland

et al. 2008

IEEE Trans. Circuits Syst. II

Self Cite

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show abstract

“…The very simple demodulation scheme does not need any template generator such as in conventional PPM demodulators. The synchronization is described in [17]. This total baseband process (demodulation and synchronization) is fully analog and does not need any Analog to Digital Converter, which can be proposed for very-low consumption TAG.…”

Section: Uwb-ir Transceivermentioning

confidence: 99%

“…After low-noise amplification, the modulated pulsed oscillator envelope is retrieved using a RF detector. The sliding correlation is used to synchronize and demodulated the pulses in base band [17] In a first section, the transposition of the UWB-IR is described. Then, the major MMIC devices designed and fully tested are presented: a 30 GHz source, a pulse generator and a UWB SHA.…”

Section: Introductionmentioning

confidence: 99%

60 GHz UWB-IR Transceiver With Pulsed-Injected Locked Oscillator

Deparis¹,

Boe²,

Loyez³

et al. 2007

2007 European Conference on Wireless Technologies

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A simple but efficient transceiver for UWB Impulse Radio (UWB-IR) signal generation in millimeter-wave band for Giga-bit WLAN is presented. The emitter involves a subharmonic Injection Locked Oscillator (ILO) driven by a pulse generator with fast transition time. Its frequency oscillation is locked to one of the numerous harmonic components of the pulse generator at 30 GHZ, which permits to obtain a stable pulse to pulse phase condition. The start of the oscillations is studied, using the external quality factor Q ext as main factor. Then a frequency doubler permits this modulated signal to be transposed at 60 GHz. The receiver includes a LNA, a RF-detector and a UWB Sample and Hold Amplifier (SHA). Some MMIC have been designed using a commercial pHEMT foundry process (ft = 100GHz): a pulse generator exhibiting less than 25 ps transition times, an oscillator with a 30 GHz free running output frequency, a LNA, a MPA, a RF detector at 60 GHz and a UWB SHA.

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“…Coarse and fine step sizes are used in signal acquisition and tracking stages, respectively. Another synchronization technique based on a sliding correlator uses two sample-and-hold (S/H) circuits to lock to the zero-crossing point of the received pulse [12,13]. Synchronization is performed in twosteps: search mode detects the crossover point and track mode maintains synchronization using a feedback control loop.…”

Section: Introductionmentioning

confidence: 99%

Effects of Antennas and Propagation Channels on Synchronization Performance of a Pulse-Based Ultra-Wideband Radio System

Chen¹,

Zhang

2011

PIER

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Abstract-Synchronization performance of a pulse-based ultrawideband (UWB) system is investigated by taking into account of distortions caused by transmitter and receiver antennas and wireless propagation channels in different environments. The synchronization scheme under consideration can be achieved in two steps: a slide correlator and a phase-locked loop (PLL)-like fine tuning loop. Effects of the non-idealities are evaluated by analyzing the distortion of the received UWB pulse and subsequently the synchronization performance of the pulse-based UWB system. It is found that generally a smaller step is required for the sliding correlator due to distortions introduced by the antennas and channels. However, the fine tuning loop can always be stabilized by adjusting the loop parameters. Therefore, synchronization can always be achieved.

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Receiver and Synchronization for UWB impulse radio signals

Cited by 8 publications

References 11 publications

UWB in Millimeter Wave Band With Pulsed ILO

UWB in Millimeter Wave Band With Pulsed ILO

60 GHz UWB-IR Transceiver With Pulsed-Injected Locked Oscillator

Effects of Antennas and Propagation Channels on Synchronization Performance of a Pulse-Based Ultra-Wideband Radio System

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