High-Efficiency 0.1 cc Power Amplifier Module for 900 MHz Personal Digital Cellular Telephones (Special Issue on High-Frequency/speed Devices in the 21st Century)
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概要
- 論文の詳細を見る
A new harmonic termination that controls the waveform of the drain current to be rectangular is developed for high-efficiency power amplifier modules. Its harmonic termination is a short circuit at the third harmonic and a non-short circuit at the second harmonic. It is found experimentally and confirmed by simulation that the load-matching condition at the third-order harmonic improves the efficiency of a transistor by more than 13%. By using this tuning, 57.7% power-added efficiency of the module is achieved at the output power of 29.9 dBm with ACP of -50 dBc, NACP of -65 dBc at 925 MHz and V_&ly;dd> of 3.5 V.
- 社団法人電子情報通信学会の論文
- 1999-11-25
著者
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Sato Kazunao
High Frequency & Optical Semiconductor Division Mitsubishi Electric Corporation
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Sato Kazunao
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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TANINO Noriyuki
High Frequency & Optical Semiconductor Division, Mitsubishi Electric Corporation
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OHTA Akira
High Frequency & Optical Semi-conductor Business Division, Mitsubishi Electric Corporation
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INDUE Akira
High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation
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NAKAMOTO Takahiro
High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation
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KAGEYAMA Shigeki
High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation
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KITANO Toshiaki
High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation
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KATAYAMA Hideaki
High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation
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OGATA Toshikazu
High Frequency & Optical Semiconductor Div., Mitsubishi Electric Corporation
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Indue Akira
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Ogata Toshikazu
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Katayama Hideaki
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Kageyama Shigeki
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Tanino Noriyuki
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Kitano Toshiaki
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Nakamoto Takahiro
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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Ohta Akira
High Frequency & Optical Semiconductor Div. Mitsubishi Electric Corporation
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