Design of a concurrent tri-band LNA based on composite right/left-handed transmission line resonators

Faycal El Hardouzi, Mohammed Lahsaini, Mustapha Bahich, Badr Nasiri, Younes Achaoui

Abstract


This article presents a three-band low noise amplifier (LNA) in microstrip technology based on composite right left handed transmmision line (CRLH TL) resonators for multi-band behavior, which has been designed to meet all the criteria that determine the quality of its operation. The transistor used is biased via a transmission line and matched by λ/4 transformer filters with CRLH-TL type resonators at the output to establish multiband behavior with improved band rejection to suppress unwanted frequencies and interference. The results demonstrate excellent performance at three frequencies: 900 MHz (15.03 dB gain), 2.1 GHz (13.58 dB gain), and 3.5 GHz (12.57 dB gain), with a noise figure below 2 dB and unconditional stability. The size of the proposed amplifier is 73×63 𝑚𝑚2 in area.

Keywords


composite right left handed transmmision line; low noise; low noise amplifier; multi band; split ring resonator;

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DOI: http://doi.org/10.12928/telkomnika.v23i4.26816

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TELKOMNIKA Telecommunication, Computing, Electronics and Control
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