隨著生理遙測技術的進步，病人可以在日常生活不受干擾之下，讓醫護或是研究人員隨時監控並記錄活動中的生理參數。而這些生理遙測系統一般是利用紅外線或是無線電的方式來傳送這生理參數。本論文使用類比調變技術來傳遞生醫訊息。

　　除了調變所需之混波器之外，發射機使用鎖相迴路穩定載波。接收機使用鎖相迴路鎖定相位，且採用六階Gm-C濾波器架構頻帶選擇之帶通濾波器；二階Active RC濾波器架構解調低通濾波器。

　　我們所設計的系統規格：調變方式：振幅調變；壓控震盪器頻率：20MHz ~ 100MHz；生醫訊號振幅微小：1~10mV。最後使用台積電0.35um 2P4M製程去實現生醫遙測傳輸晶片。若是整個傳輸、接收可以實現，相信對人類的健康是有一定的貢獻。

　The medical practicians are able to live monitor and record the physiological parameters in the activities of the patients that do not interfere in their daily life with the progress of biotechnology technique. The physiological parameters are usually transmitted by using the infrared LED or RF in the biotechnology system. In this thesis, we transmit the records by using analog communication technique.

　Besides mixers for modulation needed, we utilize a PLL to make carrier more stable in transmitter. On the other hand, we adopt 6th stage Gm-C BPF for channel selector and 2nd stage active RC LPF for demodulation in receiver. The PLL in receiver is to lock shifted phase in transmission path.

　The specifications of our designed system are: 1. Modulation method: Amplitude Modulation, 2. Operation frequency: 20MHz ~100MHz 3. Biosignal amplitude: 1~10 mV. At last, we design the system on TSMC0.35um 2P4M fabrication. If the transmitter and receiver chips would be realized successfully, the system must provide much contribution to mankind health.

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