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Journal ArticleDOI

A 2.4-GHz ISM-Band Sliding-IF Receiver With a 0.5-V Supply

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TLDR
An ultra-low-voltage RF receiver for applications in the 2.4 GHz band, designed in a 90 nm CMOS technology, which has a programmable overall gain of 30 dB, noise figure of 18 dB, out-of-channel IIP3 of -22 dBm.
Abstract
We report an ultra-low-voltage RF receiver for applications in the 2.4 GHz band, designed in a 90 nm CMOS technology. The sliding-IF receiver prototype includes an LNA, an image-reject LC filter with single-ended to differential conversion, an RF mixer, an LC IF filter, a quadrature IF mixer, RF and IF LO buffers, and an I/Q baseband section with a VGA and a low-pass channel-select filter in each path, all integrated on-chip. It has a programmable overall gain of 30 dB, noise figure of 18 dB, out-of-channel IIP3 of -22 dBm. The 3.4 mm2 chip consumes 8.5 mW from a 0.5 V supply.

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Citations
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Journal ArticleDOI

A 0.6-V Zero-IF/Low-IF Receiver With Integrated Fractional-N Synthesizer for 2.4-GHz ISM-Band Applications

TL;DR: This paper presents the design of an ultra-low voltage, low power and highly integrated dual-mode receiver for 2.4-GHz ISM-band applications, and discusses the design challenges at low voltage supplies such as limited fT for transistors and higher nonlinearities due to limited available signal swing.
Journal ArticleDOI

A 0.65-V 2.5-GHz Fractional-N Synthesizer With Two-Point 2-Mb/s GFSK Data Modulation

TL;DR: A calibration technique to equalize the gain between the two modulation ports is introduced and enables phase/frequency modulation beyond the loop bandwidth of the phase-locked loop.
Journal ArticleDOI

An Energy-Detector for Noncoherent Impulse-Radio UWB Receivers

TL;DR: This study proposes an energy detector for a noncoherent impulse-radio UWB receiver, designed in a 0.18-mum CMOS technology, exploiting the quadratic characteristic of MOS transistors.
Proceedings ArticleDOI

An energy-detector for non-coherent impulse-radio UWB receivers

TL;DR: This study proposes an energy detector for a noncoherent impulse-radio UWB receiver, designed in a 0.18-mum CMOS technology, exploiting the quadratic characteristic of MOS transistors.
Journal ArticleDOI

A 250 mV, 352 $\mu$ W GPS Receiver RF Front-End in 130 nm CMOS

TL;DR: In this article, a fully integrated CMOS GPS receiver RF front-end is presented, which includes a variable gain LNA, a quadrature VCO, quadratures, and all required bias circuitry.
References
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Journal ArticleDOI

0.5-V analog circuit techniques and their application in OTA and filter design

TL;DR: In this paper, operational transconductance amplifier (OTA) and filter design for analog circuits with very low supply voltages, down to 0.5 V, are presented. But they do not consider the effect of low-voltage analog circuits on the performance.
Journal ArticleDOI

Fully integrated active RC filters in MOS technology

TL;DR: In this paper, a fully integrated continuous-time low-pass filter has been fabricated with CMOS technology and implemented an active RC network using integrated capacitors and MOS transistors operated in the nonsaturation region as voltage-controlled resistors.
Journal ArticleDOI

A CMOS switched transconductor mixer

TL;DR: In this article, the performance of the switched transconductor mixer was compared with the conventional active mixer, demonstrating competitive performance at a lower supply voltage, and the new mixer has a fundamental noise benefit, as noise produced by the switch-transistors and LO-port is common mode noise, which is rejected at the differential output.
Journal ArticleDOI

A low-power 2.4-GHz transmitter/receiver CMOS IC

TL;DR: A 2.4-GHz CMOS receiver/transmitter incorporates circuit stacking and noninvasive baseband filtering to achieve a high sensitivity with low power dissipation.
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