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Evolution of Monolithic Technology for Wireless Communications: GaN MMIC Power Amplifiers For Microwave Radios

Department of Electronics and Telecommunications, Politecnico di Torino, Corso Duca degli Abruzzi, 24, Torino 10129, Italy
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Micromachines 2014, 5(3), 711-721; https://doi.org/10.3390/mi5030711
Received: 5 June 2014 / Revised: 9 August 2014 / Accepted: 3 September 2014 / Published: 12 September 2014
(This article belongs to the Special Issue Advances in MMICs)
This paper presents the progress of monolithic technology for microwaveapplication, focusing on gallium nitride technology advances in the realization of integratedpower amplifiers. Three design examples, developed for microwave backhaul radios, areshown. The first design is a 7 GHz Doherty developed with a research foundry, while thesecond and the third are a 7 GHz Doherty and a 7–15 GHz dual-band combined poweramplifiers, both based on a commercial foundry process. The employed architectures, themain design steps and the pros and cons of using gallium nitride technology are highlighted.The measured performance demonstrates the potentialities of the employed technology, andthe progress in the accuracy, reliability and performance of the process. View Full-Text
Keywords: gallium nitride; microwave communications; MMIC (microwave monolithic integrated circuits); power amplifiers gallium nitride; microwave communications; MMIC (microwave monolithic integrated circuits); power amplifiers
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MDPI and ACS Style

Camarchia, V.; Pirola, M.; Quaglia, R. Evolution of Monolithic Technology for Wireless Communications: GaN MMIC Power Amplifiers For Microwave Radios. Micromachines 2014, 5, 711-721.

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