Mô tả sản phẩm: Advantex AVM4 Quadrature Modulator
Key Features of AVM4 RF Vector Modulator
- Output frequency range: 100 MHz – 4 GHz
- I/Q bandwidth: DC - 500 MHz
- I/Q input level (typ.): 0.8 Vpp @ 50Ω
- I/Q sideband suppression (calibrated): −40..−60 dB
- Output P1dB: +20 dBm
- Output level range: −30..+20 dBm
- Absolute level accuracy (typ.): ±0.2 dB
- Output level resolution: 0.05 dB
- Output IP3: +27 dBm
- Noise floor: −120 dBm/Hz @ POUT=0 dBm
- Input LO level: −10..+10 dBm
- LO suppression (calibrated): −60 dBm
- Remote control: RS-232, USB
- Command set: SCPI
- Dimensions: H x W x D: 2U x 42HP(½ 19”) x 315 mm
RF Output Specifications of Advantex AVM4 Quadrature Modulator
| Parameter | Conditions | min. | typ. | max. | Unit |
|---|---|---|---|---|---|
| Frequency bandwidth | −3 dB cutoff | 40 | 4400 | MHz | |
| Level range | −30 | +20 | dBm | ||
| Level resolution | 0.05 | dB | |||
| Absolute level accuracy | −10≤POUT≤+10 dBm | ±0.1 | ±0.3 | dB | |
| within calibration area | ±0.2 | ±0.5 | |||
| Temperature effect | 0.01 | dB/°C | |||
| Calibration area | high bound | +13 | +18 | dBm | |
| low bound | −20 | −15 | |||
| Output P1dB | 2 GHz | +18 | +20 | dBm | |
| Output IP3 | 100 MHz to 4 GHz | +27 | dBm | ||
| VSWR (RF Out @ 50Ω load) | 1.9 | ||||
| Level settling time | 100 | ms | |||
| RF Out ON/OFF switching time | from edge of triggering signal | 0.1 | ms | ||
| Noise floor | 100 MHz | −117 | dBm/Hz | ||
| 1 GHz | −124 | ||||
| 4 GHz | −128 | ||||
| 2-nd harmonics & LO products @ POUT=0 dBm | 100 MHz | −31 | dB | ||
| 1 GHz | −44 | ||||
| 4 GHz | −44 | ||||
| 3-rd harmonics & LO products @ POUT=0 dBm | 100 MHz | −43 | dB | ||
| 1 GHz | −66 | ||||
| 4 GHz | −85 | ||||
| Acceptable DC voltage at RF Out | 0 | 8 | V | ||
| RF Out level @ OFF state | −40 | −60 | dBm |
 Actual signal level vs. frequency at various levels set to the instrument |
 Absolute level accuracy |
LO Input Specifications of Advantex AVM4 I/Q-Modulator
| Parameter | Conditions | min. | typ. | max. | Unit |
|---|---|---|---|---|---|
| Frequency range | 100 | 4000 | MHz | ||
| VSWR (LO input @ 50Ω) | 500 MHz to 4 GHz | 1.5 | |||
| 100 MHz to 500 MHz | 3 | ||||
| LO input level | −10 | +10 | dBm | ||
| LO to RF Out suppression | uncalibrated (@ PLO=0 dBm) | −60 | −40 | −25 | dB |
| calibrated | −60 |
 LO suppression and RF Out level at OFF state |
I/Q Input Specifications of Advantex AVM4 Vector Modulator
| Parameter | Conditions | min. | typ. | max. | Unit |
|---|---|---|---|---|---|
| Frequency bandwidth | may be reduced by output filter | DC | 500 | MHz | |
| VSWR (I/Q inputs @ 50Ω) | @ 100 MHz | 1.1 | |||
| Flatness | DC to 100 MHz, FLO>500 MHz | 1.5 | dBpp | ||
| full I/Q BW | 6 | ||||
| Sideband suppression | uncalibrated (@ PLO=0 dBm) | −60 | −40 | −20 | dB |
| calibrated | −60 | ||||
| I/Q inputs two-tone IMD3 @ VIQ=0.8 Vpp | fIQ=200 MHz | −40 | dB | ||
| I/Q input level | @ 50Ω load | 0.8 | 1.6 | Vpp | |
| I/Q gain imbalance | 0.02 | dB |
 Sideband suppression @ PLO = −10 .. + 12 dBm |
 Sideband suppression @ PLO = −10 .. + 12 dBm (contour graph) |
