Title :
A 3.3V, 1W GaAs One-Chip Power Amplifier MMIC for Cellular Phones
Author :
Yamamoto, Kazuya ; Maemura, Kosei ; Komaru, Makio ; Kasai, Nobuyuki ; Oku, Tomoki ; Sasaki, Yoshinobu ; Tanino, Noriyuki
Author_Institution :
Optoelectronic and Microwave Devices Laboratory, Mitsubishi Electric Corporation, 4-1, Mizuhara, Itami, Hyogo 664, Japan. Tel: +81 727 84 7384. Fax: +81 727 80 2694
Abstract :
A 900-MHz-band 1W one-chip power amplifier MMIC, which operates at the low-supply voltage of 3.3 V and includes all bias and output matching circuits, has been developed for cellular phones. It is capable of delivering output power over 1.1 W with a power added efficiency of 43% at 3.3 V. With its extremely small chip size of 2.5 mm × 3.48 mm, it is less than one fifth the size of previously reported multi-chip ICs (MCICs). This new MMIC, the characteristics of which are compared with those of the existing MCICs, can be expected to contribute to the realization of smaller, lighter-weight cellular phones.
Keywords :
Batteries; Cellular phones; Circuit simulation; Costs; Frequency; Gallium arsenide; Impedance; MMICs; Power amplifiers; Voltage;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337354
