High-Efficiency HBT MMIC Linear Power Amplifier for L-Band Personal Communications Systems

Toshihiko Yoshimasu; Noriyuki Tanba; Shinji Hara

doi:10.1109/75.275582

High-Efficiency HBT MMIC Linear Power Amplifier for L-Band Personal Communications Systems

Toshihiko Yoshimasu, Noriyuki Tanba, Shinji Hara

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A heterojunction bipolar transistor (HBT) MMIC linear power amplifier is demonstrated for the 1.9 GHz Japanese Personal Handy Phone utilizing the π/4 DQPSK modulation technique. At an operating voltage of only 3 V, an output power of 21 dBm and a power added efficiency of 35% are obtained along with a modulation vector error of 4.5% and an adjacent channel interference of -60 dBc in +/—600 kHz offset frequency bands.

Original language	English
Pages (from-to)	65-67
Number of pages	3
Journal	IEEE Microwave and Guided Wave Letters
Volume	4
Issue number	3
DOIs	https://doi.org/10.1109/75.275582
Publication status	Published - 1994 Mar
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1109/75.275582

Cite this

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abstract = "A heterojunction bipolar transistor (HBT) MMIC linear power amplifier is demonstrated for the 1.9 GHz Japanese Personal Handy Phone utilizing the π/4 DQPSK modulation technique. At an operating voltage of only 3 V, an output power of 21 dBm and a power added efficiency of 35% are obtained along with a modulation vector error of 4.5% and an adjacent channel interference of -60 dBc in +/—600 kHz offset frequency bands.",

author = "Toshihiko Yoshimasu and Noriyuki Tanba and Shinji Hara",

year = "1994",

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AU - Hara, Shinji

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AB - A heterojunction bipolar transistor (HBT) MMIC linear power amplifier is demonstrated for the 1.9 GHz Japanese Personal Handy Phone utilizing the π/4 DQPSK modulation technique. At an operating voltage of only 3 V, an output power of 21 dBm and a power added efficiency of 35% are obtained along with a modulation vector error of 4.5% and an adjacent channel interference of -60 dBc in +/—600 kHz offset frequency bands.

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High-Efficiency HBT MMIC Linear Power Amplifier for L-Band Personal Communications Systems

Abstract

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