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A 70 GHz Bidirectional Front-End for a Half-Duplex Transceiver in 90-nm SiGe BiCMOS

机译:用于90nm SiGe BiCMOS的半双工收发器的70 GHz双向前端

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This paper presents a 70 GHz bidirectional front-end transceiver circuit in a 90-nm SiGe BiCMOS process. The design consists of a bidirectional power amplifier/low-noise amplifier (PALNA) and a passive mixer. Isolation between the transmitter (TX) and receiver (RX) is achieved with a passive impedance transformation network, eliminating the need for a high frequency transmit/receive switch. Measurement results show the transmitter has a peak output power of 7.2 dBm and a peak conversion gain of 14.5dB while nominally consumes 47 mA from a 1.8 V supply. The receiver has a peak conversion gain of 9.9 dB and a minimum noise figure of 8.6 dB with nominal current consumption of 18 mA from a 1.5 V supply. This switchless bidirectional front-end is suitable for a half-duplex system with shared TX/RX antenna such as a pulse- compression range sensor or a time-division duplexing (TDD) point-to-point communication system in E-band.
机译:本文介绍了一种采用90nm SiGe BiCMOS工艺的70 GHz双向前端收发器电路。该设计包括双向功率放大器/低噪声放大器(PALNA)和无源混频器。发射器(TX)和接收器(RX)之间的隔离是通过无源阻抗转换网络实现的,从而无需高频发送/接收开关。测量结果表明,发射器的峰值输出功率为7.2 dBm,峰值转换增益为14.5dB,而从1.8 V电源正常消耗47 mA的电流。接收器的峰值转换增益为9.9 dB,最小噪声系数为8.6 dB,1.5 V电源的标称电流消耗为18 mA。这种无开关双向前端适用于带有共享TX / RX天线的半双工系统,例如脉冲压缩范围传感器或E波段中的时分双工(TDD)点对点通信系统。

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