簡介
緊湊型多功能 R&S®SMB100A 微波信號發生器頻率為 40 GHz，提供出色的頻譜純度以及高輸出功率。此外，該發生器還易于操作、功能全面且擁有成本較低。
要獲得更高的頻率，可以使用 R&S®SMZ 倍頻器輕松擴展 R&S®SMB100A 的頻率范圍。在 50 GHz 至 110 GHz 的頻率范圍內，R&S®SMB100A 以及 R&S®SMZ 解決方案將易于操作性與準確且可調的輸出電平相結合（在使用 R&S®SMZ170 時，輸出電平不可調）。
規格
| Frequency | ||
| Frequency range | R&S®SMB-B112/R&S®SMB-B112L | 100 kHz to 12.75 GHz |
| R&S®SMB-B120/R&S®SMB-B120L | 100 kHz to 20 GHz | |
| R&S®SMB-B131 | 100 kHz to 31.8 GHz | |
| R&S®SMB-B140/R&S®SMB-B140L/R&S®SMB-B140N | 100 kHz to 40 GHz | |
| Setting time | SCPI mode | < 3 ms |
| List mode | < 1 ms | |
| Level | ||
| Maximum output power | R&S®SMB-B112/-B112L, 1 MHz < f ≤ 12.75 GHz | +18 dBm |
| R&S®SMB-B120 with R&S®SMB-B31, 50 MHz < f ≤ 20 GHz | +16 dBm | |
| R&S®SMB-B120L with R&S®SMB-B31, 100 MHz < f ≤ 20 GHz | +19 dBm | |
| R&S®SMB-B131/-B140/-B140N with R&S®SMB-B32, 50 MHz < f ≤ 40 GHz | +19 dBm | |
| R&S®SMB-B140L with R&S®SMB-B32, 50 MHz < f ≤ 40 GHz | +16 dBm | |
| Minimum specified output power | R&S®SMB-B112/-B131/-B140/-B140N | -120 dBm |
| R&S®SMB-B112L | -5 dBm | |
| R&S®SMB-B120L/-B140L | 0 dBm | |
| Setting time (without switching of the mechanical attenuator) | SCPI mode | < 2.5 ms |
| List mode | < 1 ms | |
| Spectral purity | ||
| SSB phase noise | f = 1 GHz, carrier offset = 20 kHz, 1 Hz measurement bandwidth | < –122 dBc, typ. –128 dBc |
| f = 10 GHz, carrier offset = 20 kHz, 1 Hz measurement bandwidth | < –102 dBc, typ. –108 dBc | |
| Harmonics | ||
| R&S®SMB-B112/-B112L | 1 MHz < f ≤ 6 GHz; level ≤ 13 dBm 1) f > 6 GHz; level ≤ 10 dBm 1) | < –30 dBc |
| R&S®SMB-B120/-B120L/-B131/-B140/ -B140N/-B140L | standard; level ≤ 8 dBm 1) | |
| f > 1 MHz | < –30 dBc | |
| with R&S®SMB-B25/-B26 low harmonic option, low harmonic filter on, level ≤ 10 dBm 1) | ||
| 1 MHz < f ≤ 150 MHz | < –30 dBc | |
| 150 MHz < f ≤ 3 GHz | < –58 dBc | |
| 3 GHz < f ≤ 20 GHz | < –50 dBc | |
| f > 20 GHz | < –60 dBc (meas.) | |
| Supported modulation modes | ||
| AM | standard | |
| AM depth | 0 % to 100 % | |
| FM/φM | standard | |
| Maximum FM deviation | f = 10 GHz | 32 MHz |
| Maximum φM deviation | f = 10 GHz | 320 rad |
| Pulse | R&S®SMB-K21/-K22 pulse modulator | |
| Rise/fall time | < 20 ns, typ. < 5 ns | |
| ON/Off ratio | > 80 dB | |
| Minimum pulse width of pulse generator output | 10 ns | |
| Connectivity | ||
| Remote control | GPIB IEEE-488.2 Ethernet (TCP/IP), USB | |
| Peripherals | USB | |
1) 或輸出功率（取較低者）。
