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- articleMay 2018
A 2.4 GHz ISM-band highly digitized receiver based on a variable gain LNA and a subsampled $$\varSigma \varDelta$$ΣΔ ADC
Analog Integrated Circuits and Signal Processing (KLU-ALOG), Volume 95, Issue 2Pages 259–270https://doi.org/10.1007/s10470-018-1136-2In this paper, we present a complete multi-standard receiver based on a variable-gain LNA and an RF subsampled Sigma-Delta ADC. The receiver includes an RF digital down-conversion mixer and a polyphase multistage multi-rate decimation filter. The ...
- articleJanuary 2012
A tri-mode Compass/GPS/Galileo RF receiver with all-digital automatic gain control loop
Analog Integrated Circuits and Signal Processing (KLU-ALOG), Volume 70, Issue 1Pages 69–77https://doi.org/10.1007/s10470-011-9656-zA tri-mode RF receiver with all digital automatic gain control (AGC) loop and non-uniform 2-bit analog-to-digital converter (ADC) is designed for the bands of GPS-L1, Galileo-E1 and Compass B1 in 0.18 μm CMOS process. The RF front-end, analog baseband ...
- articleMay 2011
Super-regenerative receiver at 433MHz
Microelectronics Journal (MICROJ), Volume 42, Issue 5Pages 681–687https://doi.org/10.1016/j.mejo.2011.02.009This paper presents a receiver for operation in the 433MHz ISM band. The selected architecture explores the super-regeneration phenomena to achieve a high sensitivity for applying in wireless implantable microsystems. This radio-frequency (RF) chip can ...
- articleApril 2011
Time-variant analysis and design of a power efficient ISM-band quadrature receiver
Analog Integrated Circuits and Signal Processing (KLU-ALOG), Volume 67, Issue 1Pages 11–20https://doi.org/10.1007/s10470-010-9507-3In this work a 2.2 GHz quadrature receiver front-end suitable for low-power applications is presented. The low-noise amplifier, the mixer and the voltage-controlled oscillator are merged into a single stage, making the circuit capable of extreme current ...
- research-articleSeptember 2010
Wideband ring VCO for cognitive radio five-port receiver
SBCCI '10: Proceedings of the 23rd symposium on Integrated circuits and system designPages 18–22https://doi.org/10.1145/1854153.1854160This paper presents an wideband ring VCO for cognitive radio five-port based receivers. Also presents testbenches to demonstrate the improvement of five-port architecture in homodyne receivers. A three-stage differential topology using transmission ...
- ArticleJuly 2008
Using the fractional Hilbert transform to model a quadrature IF receiver
The quadrature IF receiver topology is utilized in direct conversion and low-IF receivers. In theory the quadrature IF topology eliminates the need for the image filters required by the heterodyne topology. In practice mismatch in analog components ...
- ArticleApril 2008
Low Cost RF Receiver Parameter Measurement with On-Chip Amplitude Detectors
VTS '08: Proceedings of the 26th IEEE VLSI Test SymposiumPages 203–208https://doi.org/10.1109/VTS.2008.56This paper describes the theory and chip measurements of a built-in test technique for RF receivers which uses simple RF amplitude detectors. The method has been used to measure the performance parameters of a 940 MHz RF receiver front-end with a mixer ...