LINC Method for MMIC Power Amplifier Linearization

Author(s): Said Elkhaldi*, Naima Amar Touhami, Mohamed Aghoutane, Taj-Eddin Elhamadi.

Journal Name: Recent Advances in Electrical & Electronic Engineering
Formerly Recent Patents on Electrical & Electronic Engineering

Volume 12 , Issue 5 , 2019

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Abstract:

Background: This article proposes the design and implementation of a MMIC (monolithic microwave integrated circuits) Power amplifier using the ED02AH process.

Methods: The MMIC ED02AH technology have been developed specifically for microwave applications up to millimeter waves, and for high-speed digital circuits. The use of a single branch of a power amplifier can produce high distortion. In the present paper, the Linear amplification with nonlinear components (LINC) method is introduced and applied as a solution to linearize the power amplifier, it can simultaneously provide high efficiency and high linearity. To validate the proposed approach, the design and characterization of a 5.25 GHz LINC Power Amplifier on MMIC technology is presented.

Results: Good results have been achieved, and an improvement of about 37.50 dBc and 59 dBc respectively is obtained for the Δlower C/I and Δupper C/I at 5.25 GHz.

Conclusion: As a result of this method, we can reduce the Carrier Power to Third-Order Intermodulation Distortion Power Ratio. Excellent linearization is obtained almost 37.6 dBc for Δlower C/I and 58.8 dBc for Δupper C/I.

Keywords: Power amplifier, MMIC circuit, LINC method, Intermodulation Products (IP3), carrier to intermodulation distortion power ratio (C/I), ED02AH process.

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Article Details

VOLUME: 12
ISSUE: 5
Year: 2019
Page: [402 - 407]
Pages: 6
DOI: 10.2174/2352096511666180611101146
Price: $58

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