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Design and Fabrication of a Ku-band Low Noise Amplifier using FR-4 Substrate

Ta, Phuong Linh and Journet, Bernard and Bach, Gia Duong (2020) Design and Fabrication of a Ku-band Low Noise Amplifier using FR-4 Substrate. IJECE . ISSN ISSN: 2088-8708 (In Press)

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The Low Noise Amplifier (LNA) plays an important role in many communication systems, especially at the receiver’s front-ends. In modern RF designs, The LNA is usually fabricated on a microstrip printed circuit board (PCB) due to its simplicity and ability of integrating flexibly with other components in a receiving circuitry unit. At frequencies lower than 6 GHz, the most prevalent substrate material for a microstrip LNA is FR-4 while at higher frequencies of over 10 GHz, it is challenging to design the LNA using this material without causing considerable losses to the RF signal. There are many works related to design microstrip LNA at high frequencies, however, the dielectric substrates used in most of them were high-cost materials for low dielectric loss. This paper introduces an LNA topology using the common, low-cost FR-4 substrate which can be operated in Ku-band for applications such as small satellites’ receivers, with the expected noise figure of lower than 1 dB, gain of around 10 dB and the return loss of around -10 dB. The stepped impedance matching technique has been used for transmission line optimization. The simulated and measured results are presented.

Item Type: Article
Subjects: Electronics and Communications > Communications
Electronics and Communications > Electronics and Computer Engineering
Scopus-indexed journals
Divisions: Center for Electronics and Telecommunications Research (CETR)
Depositing User: Bạch Gia Dương
Date Deposited: 24 Dec 2019 04:37
Last Modified: 24 Dec 2019 04:37

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