A Novel Dual Band Transmitter for Wireless LAN IEEE802.11a/g Applications with Digital Predistortion Linearization(Devices/Circuits for Communications)
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概要
- 論文の詳細を見る
A novel dual band transmitter module for 2.4GHz and 5.8GHz wireless LAN applications with adaptive digital predistortion linearization is presented. The module operates either as a power amplifier for 2.4GHz or frequency doubler for 5.8GHz band. Amplification gain is 12.9dB at 2.4GHz and multiplication gain is 3.3dB at 5.8GHz. At 2.4GHz band, the second harmonic is about 36.5dB lower than the fundamental, and the 2.9GHz fundamental signal is 20.3dB lower than the second harmonic output at 5.8GHz operation. An adaptive digital predistortion scheme is proposed to linearize the 2.4GHz amplifier, and to get the proper 5.8GHz band wireless LAN signal. The 2.4GHz amplifier with predistortion satisfies the ACPR mask requirement for the input 1dB compression power of 5dBm and the linearized frequency doubler shows 26dB ACPR improvement at 11MHz offset from center frequency by using the proposed predistortion linearization. The frequency doubler output spectrum with prdistortion does meet the IEEE standard Tx mask.
- 社団法人電子情報通信学会の論文
- 2006-07-01
著者
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Choi Jae
Department Of Electronics Engineering University Of Incheon
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Choi Jae
Department Of Anesthesiology And Pain Medicine Asan Medical Center University Of Ulsan College Of Me
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Koo Kyung
Department Of Electronics Engineering University Of Incheon
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Kang Sung
Department Of Ophthalmology University Of Ulsan College Of Medicine Asan Medical Center
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Kang Sung
Department Of Biological Science Kongju National University
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Kang Sung
Department Of Electronics Engineering University Of Incheon
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