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- Broadband Operation of a Slot-coupled Compact Rectangular Microstrip Antenna with a Chip-Resistor Loading
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題 名 | Broadband Operation of a Slot-coupled Compact Rectangular Microstrip Antenna with a Chip-Resistor Loading=具晶片型電阻負載之槽孔耦合縮小化寬頻短形微帶天線 |
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作 者 | 陸瑞漢; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷 期 | 23:4 1999.07[民88.07] |
頁 次 | 頁550-554 |
分類號 | 448.813 |
關鍵詞 | 電阻負載; 槽孔耦合; 矩形微帶天線; Compact broadband microstrip antenna; Slot-coupled; Chip-resistor loading; |
語 文 | 英文(English) |
英文摘要 | Broadband operation of a slot-coupled compact rectangular microstrip antenna with a chip-resistor loading is demonstrated. By loading a chip-resistor at the radiating edge, a significant decrease in the resonant frequency of the rectangular microstrip antenna is achieved, which can result in a large antenna size reduction, and the operating impedance bandwidth is also seen to be significantly enhanced, as compared with the shorting-pin loading case. Good impedance matching can be easily achieved by adjusting the coupling-slot size, with the slot center fixed at the null-field point of the TM10 mode, i.e., the center of the rectangular patch. Also, it is found that the required slot size increases with increasing loading resistance. Typical antenna designs and experimental results are presented and discussed. |
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