A High Efficiency Power Amplifier Integrated with a CPW Patch Antenna: A First Design Iteration - Couverture souple

Prévost, Jean-Paul L.

Couverture souple

ISBN 10 : 3639208455 ISBN 13 : 9783639208450

Editeur : VDM Verlag, 2009

Synopsis

In this work, the CPW-fed aperture-coupled patch antenna is studied for the purpose of integration with a high efficiency power amplifier. The design of a high-efficiency power amplifier using an active multi-harmonic load-pull system is described. The load-pull system is constructed using six-port circuits and can independently vary the output load of a transistor at its fundamental operating frequency, as well as at the second and third harmonics. The system is used to find the efficiency-optimizing output loads of a commercial transistor operating at a class B bias point. A power amplifier with a gain of 7.1 dB and a PAE of 58.6% operating at a fundamental frequency of 3.5 GHz with an input power of 4mW is obtained. A CPW-fed slot-coupled patch antenna is designed to act as both a radiating element and an impedance element, producing the transistor?s experimentally determined efficiency-optimizing load at the fundamental frequency. A CPW circuit comprising of internally patterned series stubs is added to the input of the antenna in order to produce the transistor's optimal loads at the second- and third-harmonic frequencies.

A propos du livre

Biographie de l'auteur

Jean-Paul L. Prévost holds a B.A.Sc. and a M.A.Sc. degree in electrical engineering from the University of Ottawa, Ottawa, Canada. He also holds a Ph.D. degree in material physics from the same university. He has extensive engineering experience, having worked for a number of public and private high technology employers in the Ottawa area.

Détails de l'édition

• Éditeur: VDM Verlag
• Date d'édition: 2009
• Langue: anglais
• ISBN 10: 3639208455
• ISBN 13: 9783639208450
• Reliure: Broché
• Nombre de pages: 124
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible