LNAFIN2 is a Q-band LNA
MMIC Design Sheet: LNAFIN2 is a Q-band LNA
Esa Tiiliharju, doct.tech(EE), LNAFIN Oy, https://www.LNAFIN.com/, eti@LNAFIN.com
MMIC Information
This web-page is re-production of a MMIC design sheet we have assembled for our Q-band LNA project. This chip has been recently fabricated and its simulated performance is shown in this post. The chip fabrication is part of our Q-band ESA project blogged here. The low-noise amplifier has 4-stages, and it has a simulated state-of-the-art performance with low Noise Figure (NF), high gain and good broadband 50-Ω matching.
- Circuit Name: LNAFIN2, Circuit Function: Q-Band Low-Noise Amplifier (LNA).
- MMIC size: 3×2 mm2.
- Foundry: Ommic 70-nm mHemt D007IH.
Stability verification example using the gprobe2-method. Circuit response is stable in all
loading conditions when probed values remain within -1. . . +1.
Simulated Performance Table
| Parameter | Unit | LNA#2 |
| Centre frequency | GHz | 40.0 |
| Bandwidth | GHz | 12.8 |
| Gain | dB | 31.4 |
| Noise figure | dB | 1.2 |
| Output 1-dB compression | dBm | 4 |
| Input return loss | dB | 22.4 |
| Output return loss | dB | 21.9 |
| Stability | Unconditional | |
| DC power consumption | mW | 153.6 |
| Operating temperature | °C | -25 to +75 |
| PORT1 bw RL=18 dB | GHz | 14.8 |
| PORT2 bw RL=20 dB | GHz | 66.1 |
Note: linearity (1-dB compression) is limited by the small-signal models, which have
only few biasing points. We have done the large signal simulations with biasing points, which correspond to tabulated small-signal characteristics.
Simulated 2-port Characteristics
