Zobrazeno 1 - 10
of 114
pro vyhledávání: '"L. Piazzon"'
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering. 24:498-507
This contribution presents the analysis, design and characterization of a high gain Doherty power amplifier implementing an integrated Driver stage in the Auxiliary branch. Guidelines and design equations are demonstrated, fulfilling the full integra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34e023a679af1c57963e21b2458cb4d4
https://doi.org/10.1002/mmce.20791
https://doi.org/10.1002/mmce.20791
Publikováno v:
2015 IEEE International Wireless Symposium (IWS 2015).
Performance of Crest Factor Reduction (CFR) technique based on peak windowing scheme along with Digital Predistortion (DPD) technique using Generalized Memory Polynomial (GMPDPD) is studied, and its effect on the performance of power amplifier (PA) i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd8de88d6086e97817716215c741524b
https://doi.org/10.1109/ieee-iws.2015.7164535
https://doi.org/10.1109/ieee-iws.2015.7164535
Autor:
Rocco Giofre, Paolo Colantonio, Franco Giannini, Ferdinando Costanzo, M. V. Deepak Nair, L. Piazzon
This paper presents the design of a concurrent tri-band Doherty Power Amplifier (DPA) for 1.84 GHz, 2.14 GHz and 2.65 GHz frequency bands. The frequency response around each operating band is maximally flattened adopting a new design strategy. The DP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::046fd8769195bca55f34a6f7f5fb5b95
http://hdl.handle.net/2108/116621
http://hdl.handle.net/2108/116621
Autor:
Vittorio Camarchia, Rocco Giofre, Roberto Quaglia, Marco Pirola, Chiara Ramella, Paolo Colantonio, L. Piazzon, Franco Giannini
A 7 GHz GaN MMIC Doherty power amplifier with reconfigurable input network for backhaul applications, is presented. The reconfigurable solution is conceived to be simply implemented in MMIC technologies. To demonstrate the effectiveness of the strate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fb92532f4d337f786a592e5f0a08068
http://hdl.handle.net/2108/114432
http://hdl.handle.net/2108/114432
Publikováno v:
Microwave and Optical Technology Letters. 54:2633-2635
In this letter, the design, realization and test of an X-band GaAs MMIC high power amplifier (HPA) is reported. The HPA is designed in a two stage configuration to fully match a 50 ohm input and output impedance. Experimental results shown that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::761049e5713bb101e7165746ce0170f0
https://doi.org/10.1002/mop.27109
https://doi.org/10.1002/mop.27109
Publikováno v:
2014 9th European Microwave Integrated Circuit Conference.
Phase Shifted Transmitter (PST) operates without mixers and allows the direct generation and transmission of any envelope and phase-modulated signals. Besides of maintaining all the benefits of the standard PST architecture, the solution here propose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47e34f100d0cc08f14a58decb0c6dc3c
https://doi.org/10.1109/eumic.2014.6997932
https://doi.org/10.1109/eumic.2014.6997932
Publikováno v:
2014 20th International Conference on Microwaves, Radar and Wireless Communications (MIKON).
Closed-form relationships for the optimum bias point of high efficiency and widband power amplifiers (PAs) based on cascode cel are presented in this contribution. Through a rigorous analysis, the optimum output load, supply voltages, expected output
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9140fd1f9690070c835ebd1847f2fc5f
https://doi.org/10.1109/mikon.2014.6899965
https://doi.org/10.1109/mikon.2014.6899965
Publikováno v:
2014 20th International Conference on Microwaves, Radar and Wireless Communications (MIKON).
The discrepancy between models and actual components sometimes causes the shift of the operating band of the realized circuit. This side effect is not acceptable and difficult to predict in many applications. This paper proposes a post-processing met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c6c9c9e4d31478708212fd39bba9e9a
https://doi.org/10.1109/mikon.2014.6899878
https://doi.org/10.1109/mikon.2014.6899878
Publikováno v:
2014 IEEE MTT-S International Microwave Symposium (IMS2014).
This contribution presents a ground breaking distributed matching/combining network that allows to develop ultra-broadband Doherty Power Amplifiers (DPAs). In 73% of fractional bandwidth, from 1.2 GHz to 2.6 GHz, input return loss lower than -18 dB i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b5f86ab9bd5855fb038046e4400d30c
https://doi.org/10.1109/mwsym.2014.6848303
https://doi.org/10.1109/mwsym.2014.6848303
Autor:
Paolo Colantonio, Giovanni Ghione, Vittorio Camarchia, Roberto Quaglia, Franco Giannini, L. Piazzon, Rocco Giofre, Marco Pirola
The relationships between phase distortion, bias point and load modulation in power amplifiers are experimentally evaluated for two different GaN HEMT technologies. Measurements on devices with fixed and modulated load, to emulate the dynamic working
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a061c245bdaaa2e50a198eaf29cdf40b
http://hdl.handle.net/2108/85289
http://hdl.handle.net/2108/85289