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—A fully integrated 60 GHz frequency synthesizer with an in-phase injection-coupled quadrature voltage-controlled oscillator (IPIC-QVCO) is proposed. Through a particular symmetrical coupling network formed by diode-connected transistors, the in-phase coupling is realized in the IPIC-QVCO, which reduces both phase noise and phase error. A compact(More)
The IEEE 802.15.4 standard relaxes the requirements on the receiver front-end making subthreshold operation a viable solution. The specification is discussed and guidelines are presented for a small area ultra-low-power design. A subthreshold biased low-noise amplifier (LNA) has been designed and fabricated for the 2.4-GHz IEEE 802.15.4 standard using a(More)
However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and(More)
Under the influence of increasing demand for high-data-rate communication systems such as 60GHz band application, the requirements of PLLs keep getting higher. In an mm-wave direct-conversion transceiver, the quadrature LO signals generation is challenging. The conventional techniques to generate quadrature LO signals suffer from many problems. The method(More)
A novel on-chip transformer configuration that gives an identical inductor pair, a higher individual coil self-resonant frequency (SRF), and excellent area efficiency are presented. This technique involves the unique way of inter-crossing the transformer's primary and secondary coils using multiple metallization layers. Truly symmetrical transformer(More)
A higher frequency, over 2 GHz, is suggested for current 4G or 5G wideband applications. By adopting a unique gain control method, an analog-controlled variable-gain amplifier (VGA) with an accurate dB-linear characteristic is presented. The designed VGA not only features large bandwidth, but also has accurate gain adjustment with a relatively wide control(More)
Electrical energy is vital to our daily activities. However, energy cost is increasing while much energy is being wasted into the environment. If we can capture these wasted energies, efficiency of energy utilization will be enhanced, and this is the idea of energy harvesting.
—In this letter, a drain current noise model that includes the channel thermal noise and the shot noise generated at the source–bulk junction and the drain–bulk junction is presented. A unified analytical expression is derived to ensure excellent continuity with smooth transition of drain current noise from weak-to strong-inversion regimes, including the(More)
This paper presents a low power 2.4-GHz fully integrated 1 MHz resolution IEEE 802.15.4 frequency synthesizer designed using 0.18um CMOS technology. An integer-N fully programmable divider employs a novel True-single-phase-clock (TSPC) 47/48 prescaler and a 6 bit P and S counters to provide the 1 MHz output with nearly 45% duty cycle. The PLL uses a series(More)
Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Abstract—A receiver front end(More)