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| Content Provider | IET Digital Library |
|---|---|
| Author | Jiang, J. Holburn, D. M. |
| Abstract | An integrated downconversion CMOS mixer incorporating a comprehensive compensation scheme is presented which aims to minimise second-order intermodulation distortion (IMD2). Unlike previously reported IMD2 calibration schemes which tune only one nonlinear factor at a time, the presented solution allows simultaneous adjustment of several different factors thus achieving a better compensation. The mixer has been implemented in UMC 0.18 µm CMOS to verify the proposed scheme and for comparison with alternative compensation methods. Measurements show that the solution described can improve the input intercept point (IIP2) by over 20 dB while maintaining good amplification and noise performance. IMD2 calibration results are presented and show useful advantages over other approaches. To the best of the authors' knowledge, this scheme for IMD2 calibration has not been previously reported. |
| Starting Page | 1211 |
| Ending Page | 1213 |
| Page Count | 3 |
| ISSN | 00135194 |
| Volume Number | 49 |
| e-ISSN | 1350911X |
| Issue Number | Issue 19, Sep (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/49/19 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2013.0567 |
| Journal | Electronics Letters |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Calibration CMOS Integrated Circuit Demodulator Discriminators And Mixers Frequency 2.1 GHz IIP2 Enhancement IMD2 Calibration Scheme Integrated Down-conversion CMOS Mixer Intermodulation Distortion Microwave IC MIS Device Modulation And Coding Method Modulator MOS Mixer Linearisation Approach Multiple Factor Compensation Nonlinear Factor Second-order Intermodulation Distortion Calibration Scheme Size 0.18 Mum UHF Integrated Circuit UHF Mixers UMC CMOS Technology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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