Symbolic analysis of analog circuits containing voltage mirrors and current mirrors
Analog Integrated Circuits and Signal Processing
A CMOS voltage regulator for passive RFID tag ICs
International Journal of Circuit Theory and Applications
Active-terminated transmitter and receiver circuits for high-speed low-swing duobinary signaling
International Journal of Circuit Theory and Applications
| Hi-index | 0.00 |
A novel low-power receiver topology for radio-frequency and microwave applications is presented. The proposed solution exploits a simple connection between the low-noise amplifier and the subsequent mixer, which is realized by means of a high-value resistor and a current mirror, achieving low noise and high linearity performance with an extremely low power consumption. The criteria for its optimal design are derived in order to accomplish the main trade-offs among noise figure (NF), linearity, and current consumption performance. As a case of study, the new topology has been designed in the case of I-Q direct conversion receiver for IEEE 802.15.4 standard (ZigBee) applications at 2.45 GHz. The receiver exhibits a NF of 8.7 dB, 50Ω input impedance, a voltage gain of 26 dB, an input-referred third-order intercept point of -13 dBm, and a power consumption of 8.6 mW, which represent one of the best performance trade-offs obtained in the literature. Copyright © 2008 John Wiley & Sons, Ltd.