本論文提出一創新植入式無線生醫通訊系統架構。此系統由三種頻段組成:402 MHz資料傳送、433 MHz整流天線與2.4 GHz之喚醒電路。此三頻生醫通訊系統將可大大改善植入式感測裝置電池的使用時間。為了實現小型化且大頻寬之植入式天線設計，一個堆疊式架構的倒F型天線、與利用Π型輻射體結合兩L型或彎摺金屬微片的倒F型天線被提出。所提出的天線架構能激發多個共振模態。藉由適當地控制此多共振模態可分別得到寬頻操作與三頻天線操作之特性。為了測試植入式天線的特性，等效人體介質的調配是必要的。本文提出利用調配酒精重量百分比濃度與鹽巴可得到等效人體介質。所調配出的等效液體很適合用來驗證植入式天線。為了驗證寬頻或多頻段的植入式天線，寬頻的等效人體組織液也是必須的。文中亦發現豬前腿肉之介電特性剛好介於人之皮膚與肌肉組織。因此豬肉將被採用來測試多頻帶植入式天線。為了更容易與目前的健康照護監控系統結合，亦在文中提出可適用於無線網路與手持式通訊系統的寬頻天線設計。利用特殊圓形或環形共平面波導饋入的寬頻天線被提出應用於健康照護監控系統。為了避免干擾鄰近無線網路的波段如HIPERLAN (5150-5350 MHz)及WLAN (5725-5825 MHz)，具兩帶拒濾波的寬頻天線亦被提出。最後由結果顯示此天線的寬頻特性將能涵蓋目前常用的無線網路或手持式通訊系統的頻段。
為了印證所設計系統的實用性，外部基站天線的設計也是必須的。本文提出利用Moxon天線結構去分別實現400 MHz、433 MHz及2.4 GHz的印刷式Moxon天線設計。由結果證明本論文針對此生醫通訊系統所提出來的天線是可行的。甚至本文也利用晶片與電路整合三頻植入式天線去實現402 MHz資料傳遞與433 MHz整流天線。結果顯示本文提出的系統架構是可行的。該整流天線之射頻轉直流之最佳效率可達73%，將可利用外部射頻能量供給植入體內裝置或電池作充電動作。

This thesis presents the novel biotelemetry architecture for implantable biotelemetry. The proposed system is composed of three bands: the 402 MHz data telemetry, the 433 MHz rectifying antenna (rectenna), and the 2.4 GHz wake-up radio. This triple-band biotelemetry system substantially improves the life time of the battery of implantable device. For the implementation of compact and broadband implantable antenna, a stacked implantable antenna, the Π-shape radiator with dual L-strips or dual meander-strips PIFA are proposed. The proposed antenna structure can excite multi-resonant frequencies. By properly controlling the multi-resonances, the broad bandwidth or the triple-band characteristics are obtained. For verifying the implantable antenna, developing the human simulating is required. The utilization of the different alcohol concentration with salts to develop the human simulating fluid is proposed. This proposed fluid is very suitable for verifying the implantable antenna. For verifying the broadband or multi-band implantable antenna, the broadband human simulating is necessary. It is found that the dielectric characteristic of front-leg of pork is similar to skin and muscle of human body. Thus, the test tissue is adopted the pork to verify the multiband implantable antenna. For the easy integration of present healthcare monitoring application, the broadband antenna is proposed to cover the wireless local network or mobile communication band. The special circular CPW-fed and annular CPW-fed broadband antenna are proposed for the healthcare monitoring application. To avoid interfering with nearby communication systems such as High Performance Radio LAN (HIPERLAN: 5150-5350 MHz) and Wireless Local Area Network (WLAN: 5725-5825 MHz), the broadband antenna with dual band-notched functions is proposed. Results show that their broadband performance can cover the useful WLAN and mobile communication bands.
For verification of the proposed system, the designs of external antenna of base station are necessary. Here, the Moxon antenna structure is utilized to implement the printed antenna at 400 MHz, 433 MHz, and 2.4 GHz respectively. The experimental results show that the whole antennas are feasible for the proposed implantable biotelemetry system. Furthermore, this thesis also demonstrates the board level design of 402 MHz data telemetry and the design of 433 MHz implantable rectenna. Results show that the proposed system architectures are feasibility. The optimized RF-to-DC conversion efficiency of 433 MHz rectifier can reach to 73%. Hence, the proposed system has the rectifier that can rectify the RF energy into a dc voltage to power up the implantable device or electrify the battery.

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