Low Power Dissipation Single-Supply MMIC Power Amplifier for 5.8 GHz Electronic Toll Collection System

Taketo KUNIHISA  Shinji YAMAMOTO  Masaaki NISHIJIMA  Takahiro YOKOYAMA  Mitsuru NISHITSUJI  Katsunori NISHII  Osamu ISHIKAWA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E82-C   No.11   pp.1921-1927
Publication Date: 1999/11/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on High-Frequency/High-Speed Devices for Information and Communication Systems in the 21st Century)
Category: RF Power Devices
Keyword: 
power amplifier/MMIC/ETC/SrTiO3 (STO) capacitor/single-supply,  

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Summary: 
A MMIC power amplifier operating with a single-supply (3.0 V) has been developed for 5.8 GHz Japanese Electronic Toll Collection (ETC) System. The present MMIC contains two FETs, matching circuits (input, intermediate and output matching circuits), and two drain bias circuits. High dielectric constant material SrTiO3 (STO) is used for by-pass and input coupling capacitors. Very small die size of 0.77 mm2 has been realized by using the STO capacitors and negative feedback circuit technology. High 1 dB output gain compression point (P1dB) of 13 dBm, high gain of 21.4 dB and low dissipation current of 41.3 mA have been achieved under 3.0 V single-supply condition.