Conventional digital clock distribution interconnection causes a severe power consumption problem for GHz clock distribution because of transmission line losses, and it exhibits difficult signal integrity problems due to clock skew, clock jitter and signal reflection. To overcome these conventional digital clock distribution limitations, optical clock distribution techniques, based on guided-wa...

This paper proposes an active radio frequency (RF) cancellation solution to suppress the transmitter (TX) passband leakage signal in radio transceivers supporting simultaneous transmission and reception. The proposed technique is based on creating an opposite-phase baseband equivalent replica of the TX leakage signal in the transceiver digital front-end through adaptive nonlinear filtering of t...

With the fast growing personal communication and electronic markets system-on-chip (SoC) and system-in-package (SiP) circuit design has become an indispensable area in EDA. SoC integrates different types of circuits including digital, analog, and RF contents on one chip. SiP assembles all the electronic components including digital ICs, analog ICs, RFICs, and passive components in one package. ...

A self-homodyne photonic receiver for transmitted carrier wireless links isdemonstrated. The key innovations in this photonic RF-receiver are the design andimplementation of a resonant LiNbO3 microdisk electro-optic modulator and novelRF down-conversion techniques that exploit the sensitivity of the microdisk forefficient RF down-conversion in the optical domain. By careful RF a...

MR oximetry requires a T2 measurement that is accurate within 5% in vivo. Simple methods are susceptible to signal loss and tend to underestimate T2. Current methods utilize RF pulses or RF cycling patterns that prevent signal loss at each data acquisition. However, using these methods with imperfect pulses, T2 tends to be overestimated due to temporary storage of the magnetization along the lo...

Introduction: Ultrashort echo time (UTE) MRI requires specialized pulse sequences to overcome the short T2 relaxation of the MR signal encountered in tissues such as ligaments, tendon or cortical bone. Imaging short T2 tissues is achieved in UTE by acquiring the Free Induction Decay (FID) of the MR signal as soon after the end of the RF excitation pulse as possible. This is typically accomplish...

We demonstrate high-speed charge detection at room temperature with single-electron resolution by using a radio-frequency field-effect transistor (RF-FET). The RF-FET combines a nanometerscale silicon FET with an impedance-matching circuit composed of an inductor and capacitor. Driving the RF-FET with a carrier signal at its resonance frequency, small signals at the transistor’s gate modulate t...

RF Vector Modulator enables independent control of a narrowband RF signal amplitude and phase. Unfortunately practical realization of an analog vector modulator suffers from misbalances and imperfections in the I and Q signal paths. Use of a feed-forward based calibration can compensate for them and significantly improve RF performance and control accuracy of a real vector modulator. Achieved i...

Correlation of radio-frequency (RF) signals is a fundamental operation in many fields such as information processing, detection, and imaging techniques at large. Because the intrinsic limitations electronic techniques, standard digital correlators, which rely on acquisition their become very complex to implement for real-time analysis whose bandwidth exceeds few hundred MHz. On other hand, anal...