具有自动增益控制放大器的高性能GaAs MMIC上变频器

GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 19th Annual Technical Digest 1997 Pub Date : 1997-10-12 DOI:10.1109/GAAS.1997.628276

Huainan Ma, Sher Jiun Fang, Fujiang Lin, Khen-Sang Tan, J. Shibata, Atsushi Tamura, Hiroshi Nakamura

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引用次数: 9

摘要

介绍了一种新研制的带自动增益控制放大器的GaAs MMIC上变频器。该电路将用于日本小灵通应用的1.9 GHz射频收发器。上变频器的特点是:(1)片上50 /spl ω /阻抗匹配所有交流输入输出信号;(2)一个双平衡吉尔伯特单元和一个2级AGC放大器，其匹配电路提供23db转换增益、- 39dbc LO抑制、- 23dbc图像抑制和30db增益控制;(3)相邻通道功率(ACP) -70 dBc;(4)模具尺寸仅为2.87 mm/sup 2/ (2.52 mm/sup倍/1.14 mm)。

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A high performance GaAs MMIC upconverter with an automatic gain control amplifier

A newly developed GaAs MMIC upconverter with an automatic gain control (AGC) amplifier is presented. The circuit is to be used in a 1.9 GHz RF transceiver for the Japanese PHS applications. The features of the upconverter are: (1) on-chip 50 /spl Omega/ impedance matching for all AC input and output signals; (2) a double balanced Gilbert cell and a 2-stage AGC amplifier with matching circuits that provide 23 dB conversion gain, -39 dBc LO suppression, -23 dBc image suppression and 30 dB gain control; (3) Adjacent Channel Power (ACP) of -70 dBc; and (4) a die size of only 2.87 mm/sup 2/ (2.52 mm/spl times/1.14 mm).

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GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 19th Annual Technical Digest 1997

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