Multi-band/Multi-mode and Efficient Transmitter Based on a Doherty Power Amplifier
Paper i proceeding, 2012

This paper presents the design of a high peak efficiency dual-band power amplifier (PA) and how it is adopted as basic cell to implement a high average efficiency Doherty PA (DPA), achieving a dual-band/multi-mode and efficient transmitter concurrently operating at 1.8GHz and 2.4 GHz. From the dual-band PA, an average PAE of 25% has been experimentally obtained, when exited with concurrent 10MHz LTE and WiMAX signals. When using this PA as a basis for a dual band Doherty PA, the average PAE is improved (by 9 percentage units) to 34%. An adjacent channel leakage ratio (ACLR) lower than -46.5 dBc and -46.0 dBc has been fulfilled from PA and DPA, respectively, using a standard digital linearization technique.

Författare

Paul Saad

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

L. Piazzon

Universita degli Studi di Roma Tor Vergata

P. Colantonio

Universita degli Studi di Roma Tor Vergata

Junghwan Moon

Pohang University of Science and Technology

F. Giannini

Universita degli Studi di Roma Tor Vergata

Kristoffer Andersson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

GigaHertz Centrum

Bumman Kim

Pohang University of Science and Technology

Christian Fager

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

7th European Microwave Integrated Circuits Conference, EuMIC 2012 - Held as Part of 15th European Microwave Week, EuMW 2012; Amsterdam; Netherlands; 29 October 2012 through 30 October 2012

1031-1034

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

ISBN

978-2-87487-027-9