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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Abidi, A.A. |
| Copyright Year | 1966 |
| Abstract | After being the subject of speculation for many years, a software-defined radio receiver concept has emerged that is suitable for mobile handsets. A key step forward is the realization that in mobile handsets, it is enough to receive one channel with any bandwidth, situated in any band. Thus, the front-end can be tuned electronically. Taking a cue from a digital front-end, the receiver's flexible analog baseband samples the channel of interest at zero IF, and is followed by clock-programmable downsampling with embedded filtering. This gives a tunable selectivity that exceeds that of an RF prefilter, and a conversion rate that is low enough for A/D conversion at only milliwatts. The front-end consists of a wideband low noise amplifier and a mixer tunable by a wideband LO. A 90-nm CMOS prototype tunes 200 kHz to 20-MHz-wide channels located anywhere from 800 MHz to 6 GHz |
| Sponsorship | IEEE Solid-State Circuits Society IEEE Electron Devices Society IEEE Circuits and Systems Society Japan Society of Applied Physics (JSAP) IEEE Microwave Theory and Techniques Society IEEE San Francisco Section Bay Area Council Univ. PA IEEE |
| Starting Page | 954 |
| Ending Page | 966 |
| Page Count | 13 |
| File Size | 1756450 |
| File Format | |
| ISSN | 00189200 |
| Volume Number | 42 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-05-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Receivers Mobile handsets Bandwidth Baseband Clocks Digital filters Filtering Radio frequency Broadband amplifiers Low-noise amplifiers zero IF Analog decimator analog FIR filter anti-aliasing bandpass signal processing boxcar integrator cognitive radio decimation digital AGC direct conversion receiver multi-mode receiver multi-rate signal processing receiver dynamic range sampling Software Defined Radio (SDR) switched capacitor circuit wideband receiver wideband sampling wide tuning local oscillator |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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