用于电子收费系统的5.8 GHz发射机MMIC

GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 20th Annual. Technical Digest 1998 (Cat. No.98CH36260) Pub Date : 1998-11-01 DOI:10.1109/GAAS.1998.722661

Zhongmin Wen, T. Katayanagi, Y. Arai, H. Fujishiro, S. Seki

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引用次数: 6

摘要

介绍了一种用于车载电子收费系统的5.8 GHz GaAs发射机MMIC的设计和测量结果。单芯片和单电源的MMIC不需要任何外部元件，组装成一个16针的SSOP封装。发明了一种新型漏极控制调制电路作为调制器，提供线性调制。实测邻接通道功率(ACP)小于- 47dbc。在曼彻斯特编码下，在1.024 Mbps的随机数据调制下，在5.8 GHz下调制的开/关比大于40 dB。

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A 5.8 GHz transmitter MMIC for electronic toll collection system

The results on the design and the measurement of a 5.8 GHz GaAs transmitter MMIC for electronic toll collection (ETC) system on-board equipment are presented. The MMIC of single chip and single supply without any external element is assembled into a 16-pin SSOP package. A novel drain-controlling modulation circuit is invented as a modulator to provide linear modulation. The measured adjacent channel power (ACP) is lower than -47 dBc. The on/off ratio of modulation is above 40 dB at 5.8 GHz under a random data modulation of 1.024 Mbps with Manchester coding.

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GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 20th Annual. Technical Digest 1998 (Cat. No.98CH36260)

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