CMOS IR-UWB Transceiver System Design for Contact-Less Chip Testing Applications

Wang, Yanjie; Niknejad, Ali M.; Gaudet, Vincent; Iniewski, Krzysztof

doi:10.1007/978-1-4020-9917-5_5

Cited by 4 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, there are various carrierless modulation schemes developed for UWB systems for data transmission, including Pulse Amplitude Modulation (PAM), Pulse Position Modulation (PPM) [9], Binary Phase Shift Keying (BPSK) [10], and On-Off-Keying (OOK) [11] which can be designed in different ways. In references [11,12], authors propose an edge combiner circuit to produce a pulse at the integrated bandpass filter to generate UWB pulses. This technique is straightforward, but presents limitations in generating pulses with different waveforms.…”

Section: Introduction and Related Workmentioning

confidence: 99%

A differential IR-UWB transmitter using PAM modulation with adaptive PSD

Moreira

Victor

Saotome

et al. 2021

Analog Integr Circ Sig Process

View full text Add to dashboard Cite

The current state of the telecommunications market exhibits a high potential to absorb efficient innovations in wireless connectivity, especially those that can be applied to the Internet of Things and similar domains. Contributing in that direction, this paper describes the design and implementation of a fully differential impulse-radio ultra-wideband (IR-UWB) transmitter using pulse-amplitude modulation, with an adaptive power spectrum density (PSD). The architecture can produce up to eight differential monocycles per clock pulse at its output. The number of monocycles controls the bandwidth (thus the PSD) in the mask of IR-UWB technologies, allowing adaptation to multiple standards. The complete transmitter has four main blocks: (a) a pulse generator, comprising two pulse generating circuit groups, to modulate and create a rectangular waveform; (b) an active balun with two amplifiers, to generate differential signals; (c) a digital demultiplexer, to alternate data to the pulse generating circuit groups; (d) a binary-to-thermometer decoder, to control the amount of generated monocycles per pulse. Simulations demonstrate an output pulse amplitude of 120 mV for the high logic level and of 70 mV for the low logic level, both at a 100 MHz Pulse Repetition Frequency. This produces a mean pulse duration of 277 ps, a mean central frequency of 3.8 GHz, and a mean power consumption 6.7 mW. The transmitter takes the form of an intellectual property core in a 130 nm CMOS technology. The complete transmitter area is 0.067 mm 2 , without I/O pads. The outcomes suggest that the proposed circuit can narrow or widen the output signal bandwidth, providing adaptability to different emission requirements.

show abstract

Section: Introduction and Related Workmentioning

confidence: 99%

A differential IR-UWB transmitter using PAM modulation with adaptive PSD

Moreira

Victor

Saotome

et al. 2021

Analog Integr Circ Sig Process

View full text Add to dashboard Cite

show abstract

“…Several researchers used the near-field inductive links to transmit narrow pulses in applications such as contact-less chip testing and body area networks [10]. To transmit wideband data, both the TX and RX coils require large self-resonance frequencies (SRF) to allow the high-frequency components of the narrow pulses pass through the inductive link.…”

Section: Introductionmentioning

confidence: 99%

125Mbps ultra-wideband system evaluation for cortical implant devices

Luo¹,

Winstead²,

Chiang³

2012

2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

View full text Add to dashboard Cite

Abstract-This paper evaluates the performance of a 125Mbps Impulse Ratio Ultra-Wideband (IR-UWB) system for cortical implant devices by using low-Q inductive coil link operating in the near-field domain. We examine design tradeoffs between transmitted signal amplitude, reliability, noise and clock jitter. The IR-UWB system is modeled using measured parameters from a reported UWB transceiver implemented in 90nm-CMOS technology. Non-optimized inductive coupling coils with low-Q value for near-field data transmission are modeled in order to build a full channel from the transmitter (Tx) to the receiver (Rx). On-off keying (OOK) modulation is used together with a lowcomplexity convolutional error correcting code. The simulation results show that even though the low-Q coils decrease the amplitude of the received pulses, the UWB system can still achieve acceptable performance when error correction is used. These results predict that UWB is a good candidate for delivering high data rates in cortical implant devices.

show abstract