Table 2.
Characteristic comparisons with recent previous study.
| Parameter | Ref. [27] | Proposed |
|---|---|---|
| Number of active and passive components of the biquad filter | 3 CFOAs, 3 R, 2 C | 3 CFOAs, 4 R, 2 C |
| Number of active and passive components of the quadrature oscillator | 3 CFOAs, 4 R, 2 C | 3 CFOAs, 4 R, 2 C |
| Center frequency of the biquad filter (kHz) | 39.79 | 102 |
| Independent tuning of the filter control factor parameters ωo and Q | no | yes |
| Fully-uncoupled tuning of the oscillator parameters CO and FO | no | yes |
| Constant amplitude ratio of quadrature waveforms | no | yes |
| Measured the oscillation frequency range (kHz) | N/A | 8.16~628 |
| Measured the total harmonic distortion of the quadrature oscillator (%) | N/A | <0.7 |
| Measured the power dissipation (mW) | 180 | 168 |
| Measured the input one-dB power gain compression point (dBm) | 12 | 22 |
| Measured the third-order intermodulation distortion point (dBm) | 21.59 | 33.84 |