The integration of wireless communication, e.g., in real- or quasi-real-time applications, is
related to many challenges such as energy consumption, communication range, quality of service,
and reliability. The improvement of wireless sensor networks (WSN) performance starts by enhancing
the capabilities of each sensor node. To minimize latencies without increasing energy consumption,
wake-up receiver (WuRx) nodes have been introduced in recent works since they can be always-on
or power-gated with short latencies by a power consumption in the range of some microwatts.
Compared to standard receiver technologies, they are usually characterized by drawbacks in terms of
sensitivity. To overcome the limitation of the sensitivity ofWuRxs, a design of a low noise amplifier
(LNA) with several design specifications is required. The challenging task of the LNA design is
to provide equitable trade-off performances such as gain, power consumption, the noise figure,
stability, linearity, and impedance matching. The design of fast settling LNA for a duty-cycled WuRx
front-end operating at a 868 MHz frequency band is investigated in this work. The paper details
the trade-offs between design challenges and illustrates practical considerations for the simulation
and implementation of a radio frequency (RF) circuit. The implemented LNA competes with many
commercialized designs where it reaches single-stage 12 dB gain at a 1.8 V voltage supply and
consumes only a 1.6 mA current. The obtained results could be made tunable by working with
off-the-shelf components for different wake-up based application exigencies.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:91846 |
| Date | 04 June 2024 |
| Creators | Ketata, Ilef, Ouerghemmi, Sarah, Fakhfakh, Ahmed, Derbel, Faouzi |
| Publisher | MDPI |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 2079-9292, 10.3390/electronics11193235 |
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