2.45 GHz 數位無線收發機之應用與共面波導饋入天線之設計

2.45 GHz Digital Wireless Transceiver Application and CPW-Fed Antenna Design

林賢昌(Xian-Chang Lin)

指導教授 ： 余政杰

國立臺北科技大學/電資學院/電腦與通訊研究所/碩士(2007年)

https://doi.org/10.6841/NTUT.2007.00329

摘要

本論文主軸分為兩部分，數位無線部分為PIC16LF877A單晶片結合2.45 GHz CC2420射頻收發機模組、MCP9700和TC77溫度感測器作實驗。一開始先做兩顆單晶片之間的串列周邊介面(Serial Peripheral Interface；SPI)實驗和一顆單晶片結合MCP9700溫度感測器的類比數位轉換器(Analog Digital Converter；ADC)實驗，以建立基本的溝通介面。
當基本溝通介面建立後，接著開始驗證CC2420射頻收發機的基本功能。使用兩顆單晶片分別結合兩個射頻收發機模組和一個TC77溫度感測器做基本的資料傳輸接收、確認框(Acknowledge Frame；ACK)、安全機制和溫度感測器傳輸實驗。最後，使用兩顆單晶片分別結合兩個射頻收發機模組和一個MCP9700溫度感測器做點對點通訊協定實驗。
共面波導饋入天線設計部分則是製作2.45/5.4 GHz雙頻共面波導饋入混合型天線(Dual-Band CPW-Fed Hybrid Antenna)。此混合型天線是由共面波導饋入電感性槽孔天線(CPW-fed Inductive Slot Antenna)分別和I、L和F三種不同形狀的雙單極天線(Dual Monopole Antenna)組合而成。從模擬和實驗結果可知，混合型天線有共面波導饋入電感性槽孔增強雙單極天線輻射效果的優點。另外，因為電感性槽孔和雙單極天線的電場互相垂直，使得兩個頻帶擁有各自共振頻率和頻寬的獨立調整性。

關鍵字

數位無線 ； 串列周邊介面 ； 類比數位轉換器 ； CC2420射頻收發機 ； 確認框 ； 安全機制 ； 溫度感測器 ； 點對點通訊協定 ； 雙頻共面波導饋入混合型天線 ； 共面波導電感性槽孔天線 ； 雙單極天線

並列摘要

This thesis has two parts, the PIC16LF877A microcontrollers combining with the 2.45 GHz CC2420 RF transceiver modules, a MCP9700 temperature sensor, and a TC77 temperature sensor for experimentation is the digital wireless part. First, a serial peripheral interface (SPI) experimentation between two microcontrollers and an analog digital converter (ADC) experimentation of a microcontroller with a MCP9700 temperature sensor are finished for achieving basic communication interface.
After achieving basic communication interface, basic functions of the CC2420 RF transceiver are verified. Utilizing two microcontrollers combine with two RF transceiver modules and a TC77 temperature sensor for data, acknowledge frame, security operation, and temperature sensor experimentations. Finally, using two microcontrollers integrate with two RF transceiver modules and a MCP9700 temperature sensor for point to point communication protocol experimentation.
In CPW-fed antenna design part, a 2.45/5.4 GHz dual-band CPW-fed hybrid antenna is fabricated. This hybrid antenna consists of a CPW-fed inductive slot antenna and three different shapes (I-, L-, and F-shaped) of the dual monopole antennas. From simulation and experimentation results, it is found that CPW-fed inductive slot helps radiate fields of the dual monopole antennas. Furthermore, due to the orthogonal polarizations fields of the inductive slot and dual monopole antennas, the resonant frequencies and bandwidths for both bands can nearly be independently optimized.

並列關鍵字

Digital Wireless ； Serial Peripheral Interface ； Analog Digital Converter ； CC2420 RF Transceiver ； Acknowledge Frame ； Security Operation ； Temperature Sensor ； Point to Point Communication Protocol ； Dual-Band CPW-Fed Hybrid Antenna ； CPW-fed Inductive Slot Antenna ； Dual Monopole Antenna

參考文獻

[6] FlexiPanel Ltd, “ZigBee for applications developers,” www.flexipanel.com/, 2005.

[15] Byoung Moo Lee and Young Joong Yoon, “A dual fed and a dual frequency slots-loaded triangular microstrip antenna,” IEEE Antenna and Propagation Soc. Int. Symp., Vol. 3, pp. 1600–1603, 16-21 July 2000.

[17] Wen-Shan Chen and Kin-Lu Wong, “A coplanar waveguide-fed printed slot antenna for dual-frequency operation,” IEEE Antenna and Propagation Soc. Int. Symp., Vol. 2, pp. 140–143, 8-13 July 2001.

[18] Jin-Sen Chen, “Dual-frequency annular-ring slot antennas fed by CPW feed and microstrip line feed,” IEEE Trans. Antennas Propagat., Vol. 53, No. 1, Pt. 2, pp. 569 – 573, Jan. 2005.

[19] S. Rhee and G. Yun, “CPW fed slot antenna for triple-frequency band operation,” Electron. Lett., Vol 42, No. 17, pp. 952-953, Aug. 2006.