Miniature ultra-low-power LNA employing current reuse and bias sharing
| DWPI Title: Low noise amplifier e.g. low power low noise amplifier, for use in large radar and communication systems, has negative output for outputting negative polarity of amplified signal and coupled to drain of transistor |
| Abstract: A low noise amplifier (LNA) offering one or more of the following benefits: increased gain, reduced power consumption, and/or reduced area, while achieving a similar noise figure, is disclosed. The LNA achieves these benefits by employing an inductorless chip design, current reuse among the transistors, bias sharing, limited AC coupling capacitors, common gate input device feedback, and careful sizing of the transistors. |
| Use: Low noise amplifier e.g. low power low noise amplifier and optional inductorless low noise amplifier, for use in large radar and communication systems. |
| Advantage: The amplifier is desirable to reduce overall power consumption by a radio frequency (RF) delay device and is compact such that a size of the overall RF delay device size is smaller, thus reducing cost of the amplifier. |
| Novelty: The amplifier has an input adapted to receive a signal i.e. input radio frequency (RF) signal (110) and reconstructed delayed output RF signal (150). A source of first transistor is coupled to the input. A source of the second transistor is coupled a drain of the first transistor. A positive output outputs a positive polarity of an amplified signal. The positive output is coupled to a drain of the second transistor. A source of the second transistor is coupled to a gate of third transistor. A source of the third transistor is coupled to a gate of the second transistor. A negative output outputs a negative polarity of the amplified signal. The negative output is coupled to a drain of the third transistor. |
| Filed: 5/1/2023 |
| Application Number: US18141729A |
| Tech ID: SD 15774.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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