Trigiant Tech. has recently developed a Q-band point-to-point high speed communication system which is indeed a pair of transceivers operated in 42.2-43.4 GHz and located separately. Two tranceivers employed the same T/R-at-hetero-freq architecture design with high/low LO pumpings, where the T/R front end is integrated by 4 functional modules that are mmW T/R, phase-locked frequency sources, IF&channel switching, DC supply&signal processing respectively. Both TX ad RX chains use the single up/down frequency conversion structure and the IF frequency is 1.5 GHz±100 MHz. The 10.2 GHz/11.2 GHz phase-locked signal from PLLs are 4 time multiplied /amplified, and then provided to the fundamental mixers as LO pumpings. The AGC at IF module enhances RX’s dynamic range.
Parameter | Minimum | Typical | Maximum |
= TX = | |||
RF Frequency | 42.2 GHz | 42.4 GHz | |
IF Frequency | 1420 MHz | 1530 MHz | |
No Damage IF Input Power | 18 dBm | ||
TX Gain | 20 dB | ||
Gain Flatness | ± 1 dB | ||
OP1dB | 20 dBm | ||
OIP3 | 35 dBm | ||
Spur Level | -50 dBc | ||
= RX = | |||
RF Frequency | 43.2 GHz | 43.4 GHz | |
IF Frequency | 1420 MHz | 1530 MHz | |
RX Gain | 30 dB | ||
Gain Flatness | ± 2 dB | ||
Noise Figure | 6 dB | ||
IM3 | -45 dBc | ||
Spur Level | -60 dBc | ||
OP1dB | 8 dBm | ||
No Damage RF Input Power | 10 dBm | ||
Built-in Digital Attenuation | 0 dB | 15 dB | |
= TRX = | |||
LO (built-in PLO) | |||
LO Frequency 1 | 40.8 GHz | ||
LO Frequency 2 | 44.8 GHz | ||
Phase Noise | -86 dBc/Hz@1 KHz | ||
-94 dBc/Hz@10 KHz | |||
-103dBc/Hz@100KHz | |||
-118 dBc/Hz@1MHz | |||
Reference | 100 MHz@Int or Ext | ||
IF Switch | |||
Insertion Loss | 0.5 dB | ||
Isolation | 30 dB | ||
Switching Speed | 100 ns | ||
Control | TTL | ||
RF Return Loss | 12 dB | ||
IF Return Loss | 12 dB | ||
DC Supply | +12 V/1.7 A | ||
Specification Temperature | +25 °C | ||
Operation Temperature | -40 °C | +85 °C | |
Storage Temperature | -65 °C | +150 °C |