Abstract
A 2-V monolithic CMOS second-order RF filter for GSM receiver front-ends is presented. A negative transconductance cell is used to compensate the loss of on-chip inductors for Q-tuning purpose. By using a Miller capacitor, center-frequency tuning can be achieved to compensate for process variation. A prototype was fabricated by 0.8μm N-well single-poly-triple-metal CMOS technology and occupies an area of 868.2×748.4μm2. Q value can vary from 3.4 to 629 and center frequency (fc) can vary from 687 to 830 MHz. For Q of 30 and fc of 829.6 MHz, the filter achieves a power gain of 2.0dB, a noise figure of 24.5dB, 1-dB compression point of -34dBm, input referred third-order intercept point of -22dBm, image rejection of 24.2dB, and power dissipation of 45.8 mW.
| Original language | English |
|---|---|
| Pages (from-to) | 569-572 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 2 |
| Publication status | Published - 1999 |
| Event | Proceedings of the 1999 IEEE MTT-S International Microwave Symposium Digest 'The Magic Touch of Microwaves' - Anaheim, CA, USA Duration: 13 Jun 1999 → 19 Jun 1999 |
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