Design of GaAs HBT power amplifier for WCDMA wireless communication systems

M. S. Alam; G. A. Armstrong; IEEE

doi:10.1109/ISICIR.2007.4441932

Back

Conference proceeding

Design of GaAs HBT power amplifier for WCDMA wireless communication systems

M. S. Alam, G. A. Armstrong and IEEE

2007 INTERNATIONAL SYMPOSIUM ON INTEGRATED CIRCUITS, VOLS 1 AND 2, pp.596-599

01/01/2007

DOI: https://doi.org/10.1109/ISICIR.2007.4441932

Abstract

Engineering

Engineering, Electrical & Electronic

Science & Technology

Technology

The power amplifier (PA) used in wide-band code-division multiple-access (WCDMA) needs to perform better from point of view linearity and efficiency. In the PA circuit harmonic traps and RC feedback arrangement are provided for improvement of linearity and stability. The power amplifier at collector voltage V-C of 3.4V under WCDMA excitation shows an excellent linearity (first ACPR<-33dBc) and more than 35% of power-added efficiency (PAE) at 28dBm of rated output power. All the WCDMA wireless PA specifications like PAE and adjacent channel power rejection (ACPR) as specified in the Third-Generation Partnership Project (3GPP) have been met even at extreme temperature conditions.

Metrics

1 Record Views

Details

Title: Design of GaAs HBT power amplifier for WCDMA wireless communication systems
Creators - without role: M. S. Alam - Aligarh Muslim University
G. A. Armstrong - Queen's University Belfast
IEEE
Publication Details: 2007 INTERNATIONAL SYMPOSIUM ON INTEGRATED CIRCUITS, VOLS 1 AND 2, pp.596-599
Publisher: IEEE
Number of pages: 3
Identifiers: 9916295208331
Academic Unit: Imam Mohammad Ibn Saud Islamic University (IMSIU)
Language: English
Resource Type: Conference proceeding