Astra MT77 laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range. Astra MT77 is suitable for many of today’s commercial RF/microwave printed circuit designs. It features a dielectric constant (Dk) that is stable between -55°C and +125°C at up to W-band frequencies. In addition, Astra MT77 offers an ultra-low dissipation factor (Df) of 0.0017, making it a cost-effective alternative to PTFE and other commercial microwave laminate materials.
Basic material on stock ASTRA M77 :
| material (mm)/thickness Cu (µm) | 18/18 | 35/35 |
| 0,127 |  |
 |
| 0,191 | |
|
| 0,254 | |
|
| 0,381 | |
|
| 0,508 | |
|
| 1,524 | |
|
| prepreg 1035 | 58µm 73% |
| prepreg 1067 (standard) | 64µm 72% |
| prepreg 1078 | 109m 74% |
| material on stock in PragoBoard s.r.o. material only per order ( delivery 14 working days ) |
 Technical specification - ASTRA MT77
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