An Ultra-Low-Power 9.8 GHz Crystal-Less UWB Transceiver With Digital Baseband Integrated in 0.18 µm BiCMOS

Huang, Kuo-Ken; Brown, Jonathan K.; Ansari, Elnaz; Rogel, Ryan R.; Lee, Yoonmyung; Kim, Hyeongseok; Wentzloff, David D.

doi:10.1109/jssc.2013.2281523

Cited by 13 publications

(2 citation statements)

References 14 publications

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“…Recently reported IR-UWB TXs generate appropriately shaped signal based on (a) delay-based pulse or edge recombination [6,9,12,[24][25][26][27][28], (b) the duty-cycled or switched oscillator [3,14,15,29,30], (c) up-conversion using mixer and frequency synthesis [7,16,18,19,[21][22][23]31], and (d) on-chip filtering solutions [2,32,33]. Although all-digital solutions based on pulse or edge recombination avoid using a mixer or/and an oscillator to enable low power consumption and faster settling time, they still require a pulse shaper (usually band-pass or high-pass filter) to reduce the low-frequency spectrum components and have difficulties in summing or adjusting overlapped delayed pulses demanding complex calibration and programmability features.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, UWB technology offers great resistance to multipath fading, high range resolution with centimetre accuracy in indoor environments, multiple access and robustness to interference, and low probability of collision with undesired signals [13]. Besides, the UWB systems have the ability to coexist with narrowband architectures due to limitations of the power spectral density (PSD) to 41.3 dBm/MHz [14, 15]. To further improve the coexistence condition, the idea of having a spectral notch at frequencies of the NB interferers is widely investigated [16, 17].…”

Section: Introductionmentioning

confidence: 99%

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Ultra‐low power low‐complexity 3–7.5 GHz IR‐UWB transmitter with spectrum tunability

Radic

Brkic

Djugova

et al. 2020

IET Circuits, Devices & Systems

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An impulse radio ultra-wideband (IR-UWB) transmitter (TX) consuming ultra-low power is presented. The lowcomplexity topology features control of the power spectral density (PSD) and central frequency for a broad range of applications. The PSD and frequency adjustment are accomplished by employing a tunable pulse generator and an adjustable driver. The IR-UWB TX suitable for on-off keying coding is fabricated in a low-cost 180 nm UMC CMOS technology and occupies the total die area of 0.63 mm 2. The measurement results show the transmitter output swing of 320 mVpp (peak-topeak amplitude) with the pulse duration of 0.6 ns, and the spectrum covering the frequency range from 3 to 7.5 GHz. The total DC power consumption is 1 mW resulting in energy consumption of 5 pJ/pulse at 200 MHz data rate.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultra‐low power low‐complexity 3–7.5 GHz IR‐UWB transmitter with spectrum tunability

Radic

Brkic

Djugova

et al. 2020

IET Circuits, Devices & Systems

View full text Add to dashboard Cite

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Design of ring oscillator with temperature compensation effect

Zhang

2022

Int J RF Mic Comp-Aid Eng

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In this article, a ring oscillator with Temperature Compensation Effect is proposed in 0.18 μm CMOS. The ring oscillator is composed of 31 stages of inverters in series. The change in ambient temperature will cause the oscillator frequency to deviate. Therefore, this research uses a voltage circuit with a positive temperature coefficient as the power supply for the oscillator circuit, so that the ring oscillator can output stable oscillation center frequency regardless of ambient temperature. The ring oscillator has been verified by simulation and experimental testing. The ambient temperature is within the range of −40°C to 80°C. The output frequency of the ring oscillator is stable at 33 kHz ± 0.50 kHz. The frequency error is within 1.6%. Temperature stability was 120 ppm/°C. At 1 MHz off the carrier, the phase noise is as low as −151.2 dBc/Hz and the total power dissipation is 210 μW. Compared with the previous scheme, the chip area and power consumption are lower. This circuit module can provide a clock signal for the timer when the UWB chip sleeps.

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Optimal design of a low-power, phase-switching modulator for implantable medical applications

Liu

et al. 2019

Integration

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An Ultra-Low-Power 9.8 GHz Crystal-Less UWB Transceiver With Digital Baseband Integrated in 0.18 µm BiCMOS

Cited by 13 publications

References 14 publications

Ultra‐low power low‐complexity 3–7.5 GHz IR‐UWB transmitter with spectrum tunability

Ultra‐low power low‐complexity 3–7.5 GHz IR‐UWB transmitter with spectrum tunability

Design of ring oscillator with temperature compensation effect

Optimal design of a low-power, phase-switching modulator for implantable medical applications

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