论文信息 - Dual‐band feedforward linear power amplifier for digital cellular and IMT‐2000 base‐station

Dual‐band feedforward linear power amplifier for digital cellular and IMT‐2000 base‐station

This article presents the design of a novel dual-band sig- nal cancellation circuit and its application to feedforward linear power amplifier. Intermodulation distortion cancellation loop shows 20.45 dB and 25.04 dB suppression for digital cellular band and IMT-2000 band, respectively, over a correction bandwidth of 100 MHz. From the adjacent channel leakage ratio measurement, 16.5 dB and 18.6 dB improvements are achieved for each band under si- multaneous operation. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 922-926, 2009; Published online in Wiley Inter- Science (www.interscience.wiley.com). DOI 10.1002/mop.24198

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