A Wideband Telemetry Unit for Multi-Channel Neural Recording Systems

Yuce, Mehmet Rasit; Liu, Wentai; Chae, Moo Sung; Kim, Jung Suk

doi:10.1109/icuwb.2007.4381017

Cited by 26 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The UWB source generates a stream of 660-ps pulses with 130-ps rise time, repeated at a 200-MHz frequency. The spectrum of thus-generated pulses extends over an unlimited frequency band [6]. A band-pass filter (BPF) centered at 4 GHz with 1-GHz bandwidth is used to limit the signal power within the desired band as shown in Fig.…”

Section: Radiation Performancementioning

confidence: 99%

Design and Evaluation of a Compact Antenna for Implant-to-Air UWB Communication

Dissanayake

Yuce

2009

Antennas Wirel. Propag. Lett.

View full text Add to dashboard Cite

Abstract-A compact, printed, capsule-shaped ultrawideband (UWB) antenna for biomedical implants is presented. The 10-dB return loss bandwidth of the proposed antenna is 3.5-4.5 GHz, which covers the recently proposed UWB for biomedical applications. The antenna matching has been optimized using CST Microwave Studio and verified by measurements. An optimized feed mechanism to reduce guided wavelength, as well as integration with other electronics, has been considered in the antenna design. Radiation performance has been evaluated on an impulse-based UWB transmitter/receiver testbed to show that the antenna is usable in biomedical applications, such as capsule endoscopes. The antenna has been tested both in free space and with tissue loading.

show abstract

Section: Radiation Performancementioning

confidence: 99%

Design and Evaluation of a Compact Antenna for Implant-to-Air UWB Communication

Dissanayake

Yuce

2009

Antennas Wirel. Propag. Lett.

View full text Add to dashboard Cite

show abstract

“…The proposed pulse modulator is well suited for bioteleme try [6], [7] where low power and compact die area are critical. Interchip communications [8], [9] is another application where pulse modulation is actively investigated for high data rates.…”

Section: Introductionmentioning

confidence: 99%

A 3-10 GHz 13 pJ/pulse dual BPSK/QPSK pulse modulator based on harmonic injection locking

El-Gabaly

Saavedra

2014

2014 IEEE MTT-S International Microwave Symposium (IMS2014)

View full text Add to dashboard Cite

We present a new method to phase-modulate RF pulses through injection locking. The modulator can produce BPSK or QPSK modulated pulses over a frequency span of 3 to 10 GHz. The RF pulses are produced using a fast on/off switching technique to power up and power down a tunable ring oscillator. Experiments show that the modulator's energy consumption ranges from 13 pJ/pulse to 18 pJ/pulse as the carrier frequency varies from 3 GHz to 10 GHz. The energy consumption figures are for 2 ns long pulses with amplitudes of 300 m V at 3 GHz and 200 mV at 10 GHz. The pulse repetition rate is 250 MHz. The chip was fabricated in 130 nm CMOS and the core circuit area is only 0.05 mm 2 •

show abstract

“…Impulse UWB technology using short duration impulses has drawn much attention from researchers and industry as it potentially offers several advantages, including high data rates, low power and complexity, reduced multipath fading, high time and range resolution, and low probability of undesired detection and interception. Energy-efficient and low-cost impulse UWB transceivers [1,2] are attractive for wireless communication and biomedical applications such as wireless personal area networks [3][4][5][6][7][8][9], interchip communications [10][11][12][13], and UWB biotelemetry [14][15][16]. Subnanosecond pulse generation is a critical function in pulsed UWB transceivers, posing some serious challenges in circuit design.…”

Section: Introductionmentioning

confidence: 99%

A 5‐GHz energy‐efficient tunable pulse generator for ultra‐wideband applications using a variable attenuator for pulse shaping

El-Gabaly

Saavedra

2011

Circuit Theory & Apps

View full text Add to dashboard Cite

SUMMARYA new energy-efficient tunable pulse generator is presented in this paper using 0.13-mm CMOS technology for short-range high-data-rate 3.1-10.6 GHz ultra-wideband applications. A ring oscillator consisting of current-starved CMOS inverters is quickly switched on and off for the duration of the pulse, and the amplitude envelope is shaped with a variable passive CMOS attenuator. The variable passive attenuator is controlled using an impulse that is created by a low-power glitch generator (CMOS NOR gate). The glitch generator combines the falling edge of the clock and its delayed inverse, allowing the duration of the impulse to be changed over a wide range (500-900 ps) by varying the delay between the edges. The pulses generated with this technique can provide a sharp frequency roll off with high out-of-band rejection to help meet the Federal Communications Commission mask. The entire circuit operates in switched mode with a low average power consumption of less than 3.8mW at 910 MHz pulse repetition frequency or below 4.2 pJ of energy per pulse. It occupies a total area of 725Â600mm 2 including bonding pads and decoupling capacitors, and the active circuit area is only 360Â200mm 2 .

show abstract

A Wideband Telemetry Unit for Multi-Channel Neural Recording Systems

Cited by 26 publications

References 9 publications

Design and Evaluation of a Compact Antenna for Implant-to-Air UWB Communication

Design and Evaluation of a Compact Antenna for Implant-to-Air UWB Communication

A 3-10 GHz 13 pJ/pulse dual BPSK/QPSK pulse modulator based on harmonic injection locking

A 5‐GHz energy‐efficient tunable pulse generator for ultra‐wideband applications using a variable attenuator for pulse shaping

Contact Info

Product

Resources

About