Fact Sheet
The main characteristics of the upGREAT channels are listed in the table below.
Low frequency array (LFA) |
High frequency array (HFA) |
|
RF bandwidth (*) |
1.9 – 2.5 THz (goal) |
~4.745 THz (±2 GHz) |
IF bandwidth (*) |
0.2 – 5 GHz (goal) |
|
Array geometry |
2 x 7 pixels for orthogonal polarizations in hexagonal configuration with a central pixel |
7 pixels in hexagonal configuration with a central pixel |
Mixer technology |
Waveguide-based HEB |
|
Mixer manufacturer |
KOSMA |
|
Local oscillator technology |
Solid-state chain |
Quantum-cascade laser |
Local oscillator coupling |
Beamsplitter (wire grid) |
Beam splitter (Mylar foil) |
Expected Trec (*) |
3000 K (SSB) (goal) |
10000 K (SSB) (goal) |
(*) For current performance values, please visit the GREAT Fact Sheet page.