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IEICE TRANSACTIONS on Electronics

1.8 V Operation Power Amplifier IC for Bluetooth Class 1 Utilizing p+-GaAs Gate Hetero-Junction FET

Fumio HARIMA, Yasunori BITO, Hidemasa TAKAHASHI, Naotaka IWATA

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Summary :

We have developed a power amplifier IC for Bluetooth Class 1 operating at single low voltage of 1.8 V for both control and drain voltages. We can realize it due to fully enhancement-mode hetero-junction FETs utilizing a re-grown p +-GaAs gate technology. The power amplifier is a highly compact design as a small package of 1.5 mm1.5 mm0.4 mm with fully integrated gain control and shutdown functions. An impressive power added efficiency of 52% at an output power of 20 dBm is achieved with an associated gain of 22 dB. Also, sufficiently low leakage current of 0.25 µA at 27 is exhibited, which is comparable to conventional HBT power amplifiers.

Publication
IEICE TRANSACTIONS on Electronics Vol.E91-C No.7 pp.1104-1108
Publication Date
2008/07/01
Publicized
Online ISSN
1745-1353
DOI
10.1093/ietele/e91-c.7.1104
Type of Manuscript
Special Section PAPER (Special Section on Heterostructure Microelectronics with TWHM 2007)
Category
GaAs- and InP-Based Devices

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