有鑑於近年通訊技術卓越進展，高頻與縮小化之集成電路對於射頻領域已是必須面對之課題。有別於典型微帶線設計，共面波導結構因其易於設計、製造與整合進表面貼合技術之電路中，已是近年熱門的研究主題。本論文以設計共面波導結構之超寬頻帶通濾波器為主軸，分別設計微帶線與共面波導混合結構之雙開口共振超寬頻帶通濾波器、具寬止帶之共面波導超寬頻帶通濾波器、環形耦合共振結構之共面波導超寬頻帶通濾波器。
於微帶線與共面波導混合結構之雙開口共振超寬頻帶通濾波器中，電路架構可使用拓樸等效電路分析兩開口共振及耦合之特性，最終經參數優化電路之分數頻寬達147%，有效電路面積為0.133λg^2 (mm^2)。
於具寬止帶之共面波導超寬頻帶通濾波器中，使用一對開路樁合成耦合帶通拓樸模型，爾後加入帶斥模型修正衰減極點與使通帶邊緣具衰減斜率最大化，以延展通帶外訊號抑制，最終形成具寬止帶之超寬頻帶通濾波器。優化後電路之分數頻寬達117%，截止帶S21直至量測終點維持-10 dB抑制水平，有效電路面積為0.071λg^2 (mm^2)。
於環形耦合共振結構之共面波導超寬頻帶通濾波器，分別以低通及帶通兩種拓樸模型實現於一環型共振結構中，並於環形開口處加入一對開路樁組成耦合帶通拓樸模型。低通於0.48 GHz截止，帶通頻寬起訖分別為1.61 GHz及6.3 GHz，頻寬達4.69 GHz，分數頻寬達118%，有效電路面積為0.842λg^2 (mm^2)。

The communication technology has huge progress in recent years, high frequency and compact circuit for integrated design are inevitable solutions. In contrast with typical microstrip line design, coplanar waveguide (CPW) has been popular in RF research which is easy for design, manufacture, and integration of SMT circuit. This thesis mainly design ultra-wideband bandpass filters with CPW structure, which are "ultra-wideband bandpass filter with hybrid microstrip / CPW of dual C-shape resonator", "ultra-wideband bandpass filter of CPW with wide stopband suppression" and "ultra-wideband bandpass filter of CPW with ring coupling resonator".
The circuit architecture of ultra-wideband bandpass filter with hybrid microstrip / CPW of dual C-shape resonator can be analyzed with topology equivalent circuit. The parameters are finally optimized to achieve the fractional bandwidth of 147% and the effective circuit area 0.133λg^2 (mm^2).
The circuit design of ultra-wideband bandpass filter of CPW with wide stopband suppression adopts a couple of open-end stubs to synthesize the coupling topology of bandpass model. A bandstop model is added to modify the attenuation pole and decline slope of the passband edge for wide stopband suppression. The optimized fractional bandwidth reaches up to 117%, the S21 of the stopband extends to the end of measurement range at least -10 dB suppression level, and the effective circuit area is 0.071λg^2 (mm^2).
The ultra-wideband bandpass filter of CPW with ring coupling resonator is implemented with lowpass and bandpass topologies. A pair of open-end stubs is added into the ring structure for achieving coupled topology model. The lowpass cutoff frequency is 0.48 GHz, band of bandpass is between 1.61 GHz and 6.3 GHz, bandwidth is 4.69 GHz, the fractional bandwidth reaches up to 118%, and the effective circuit area is 0.842λg^2 (mm^2).

中文摘要 I
Abstract II
誌謝 IV
目錄 V
圖目錄 VII
表目錄 XI
第1章 序論 1
1.1 研究背景 1
1.2 研究動機 5
1.3 實驗室歷年研究成果 7
1.4 論文架構 13
第2章 研究方法 14
2.1 濾波器與波導結構 14
2.2 傳輸線理論 21
2.3 微帶線濾波電路設計 27
2.3.1 微帶耦合線 31
2.3.2 非連續微帶線 35
2.3.3 步階阻抗共振器 40
2.3.4 開路樁與短路樁 44
2.3.5 共振器與品質因子 45
2.4 共面波導濾波電路設計 47
2.5 非連續共面波導結構 52
2.6 共面波導與微帶線模擬比較 59
第3章 共面波導濾波器製作與量測方法 61
3.1 共面波導濾波器製作流程 61
3.2 印刷電路板感光製程 63
3.3 向量網路分析儀量測 65
第4章 共面波導濾波器設計 67
4.1 相關文獻回顧 67
4.2 微帶線與共面波導混合結構之雙開口共振超寬頻帶通濾波器 74
4.2.1 優化前實作結果 79
4.2.2 優化後實作結果 82
4.3 具寬止帶之共面波導超寬頻帶通濾波器 92
4.3.1 帶斥模型與衰減極點 95
4.3.2 優化與實作結果 99
4.4 環形耦合共振結構之共面波導超寬頻帶通濾波器 102
4.4.1 結構參數 104
4.4.2 實作結果 106
第5章 結論與未來工作 109
參考文獻 111
簡歷表 116

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