Multi-Objective Optimization of a Low-Noise Antenna Amplifier for Multi-Constellation Satellite-Navigation Receivers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00233668" target="_blank" >RIV/68407700:21230/15:00233668 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1109/SOCC.2015.7406919" target="_blank" >http://dx.doi.org/10.1109/SOCC.2015.7406919</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/SOCC.2015.7406919" target="_blank" >10.1109/SOCC.2015.7406919</a>

Result language

angličtina

Original language name

Multi-Objective Optimization of a Low-Noise Antenna Amplifier for Multi-Constellation Satellite-Navigation Receivers

Original language description

Although the major parts of function blocks for the satellite navigation receivers are fully integrated in a CMOS chip in most cases, it is convenient to create an antenna preamplifier as a separate circuit based on a low-noise pHEMT. Such an RF front end can be strongly optimized to attain a trade-off between the noise figure and transducer power gain. Furthermore, as all the principal navigation systems (GPS, GLONASS, Galileo, and Compass) work in similar frequency band (roughly from 1.1 to 1.7 GHz), it is reasonable to create this low-noise preamplifier for all of them. In the paper, a sophisticated method of the amplifier design is suggested based on multi-objective optimization. First, an extraction of pHEMT model parameters was performed, including comparisons among several models. The extraction was carried out by our original three-step robust identification procedure based on a combination of meta-heuristic and direct optimization methods. Second, a substantial improvement of a standard method for the multi-objective optimization is outlined. Third, the equations of passive elements of the circuit (including transmission lines and T splitters) were carefully defined using frequency dispersion of their parameters as Q, ESR, etc. Fourth, an optimal selection of the amplifier operating point and essential passive elements was performed using the previously improved goal attainment method. Finally, the s-parameters and noise figure of the proposed preamplifier were measured, and the third-order intermodulation products were also checked.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/TE01020186" target="_blank" >TE01020186: Integrated Satellite and Terrestrial Navigation Technologies Centre</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the 28th IEEE International System on Chip Conference (SOCC)

ISBN

978-1-4673-9093-4

ISSN

2164-1706

e-ISSN

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Number of pages

6

Pages from-to

88-93

Publisher name

IEEE Circuits and Systems Society

Place of publication

Monterey

Event location

Beijing

Event date

Sep 8, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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