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研究生:林佳慧
研究生(外文):Jia-Hui Lin
論文名稱:應用單向化預失真、傳輸型變壓器與二元功率結合技術於C/X頻段之寬頻全積體功率放大器之研製
論文名稱(外文):Implementations on C/X-band Wideband Fully Integrated Power Amplifiers with Unilateralized Pre-distortion, Transmission Line Transformer and Binary Power Combiner Techniques
指導教授:邱煥凱
指導教授(外文):Hwann-Kaeo Chiou
學位類別:碩士
校院名稱:國立中央大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:中文
論文頁數:90
中文關鍵詞:功率放大器傳輸型變壓器單向化預失真二元功率結合
外文關鍵詞:Power AmplifiersTransmission Line TransformerunilateralizationPre-distortionBinary Power Combiner
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  本論文利用WIN 0.25-µm GaN pHEMT和tsmcTM 0.18-µm製程設計功率放大器,在設計上以操作於C/X頻段功率放大器為主要目標。應用傳輸線型變壓器和T型傳輸線型匹配達到寬頻且低損耗的特性,以及利用功率結合提升輸出功率。電路架構採用交錯耦合單向化電容來抑制閘-汲寄生電容(Cgd)所產生的米勒效應(Miller Effect),進而提升電路的傳輸增益(|S21|)和穩定度,並使用預失真技術來改善電路的線性度,來實現高增益和高線性度之寬頻功率放大器。
  各電路特性量測如下 : 應用並聯匹配網路結合功率於X頻段之寬頻功率放大器,傳輸增益為16.2 dB,飽和輸出功率為25.3 dBm,1-dB增益壓縮點輸出功率為24.8 dBm,3-dB頻寬為6.7GHz (4.6-11.3 GHz),比例頻寬為84.3 %,晶片面積為3.3 (2.075×1.587) mm2;應用傳輸線型變壓器、預失真技術與單向化技術於C/X頻段之寬頻功率放大器,傳輸增益為25.2 dB,飽和輸出功率為21.9 dBm,最佳功率附加增益為19.3 %,1-dB增益壓縮點輸出功率為17.2 dBm,1-dB增益壓縮點的功率附加增益最高可達17.2 %,小訊號增益之3-dB頻寬為 7.8 GHz (4.6-12.4 GHz),比例頻寬為91.8 %,飽和輸出功率之1-dB頻寬為5.0 GHz (5.5-10.5 GHz),晶片面積為1.95×0.81 mm2。


  Both C-band and X-band fully integrated power amplifiers (PA) are designed in this thesis, which are fabricated in WINTM 0.25-µm GaN pHEMT and tsmcTM 0.18-µm CMOS Processes. A PA with wideband, high gain and high linearity adopted differential Guanella-type transmission-line transformers (DTLTs) and T-type transmission-line matching is designed to achieve broadband and low loss, and adopted power combine to enhance output power. The capacitive neutralization technique is adopted to mitigate the Miller effect to improve power gain and enhance stability. The linearity at back-off region is enhanced by predistortion technique. High gain and high linearity of the broadband amplifier are thus implemented.
  The measurement results of the first PA shows a power gain of 16.2 dB, a saturated output power of 25.3 dBm, an output 1-dB gain compression point of 24.8 dBm. The 3-dB bandwidth is from 4.6 to 11.3 GHz, and the fractional bandwidth is 84.3 %. The chip size is 3.3 (2.075×1.587) mm2. The second PA achieves a power gain of 25.2 dB, a saturated output power of 21.9 dBm, a maximum power added efficiency of 19.3 %, an output 1-dB gain compression point of 17.2 dBm with power added efficiency of 17.2 %. The 3-dB bandwidth is from 4.6 to 12.4 GHz. The 3-dB bandwidth of saturation power is from 5.5 to 10.5 GHz. The chip area is 1.95×0.81 mm2.

目錄
摘要 i
Abstract ii
誌謝 iii
目錄 v
圖目錄 vii
表目錄 ix
第一章 緒論 1
1-1 研究動機 1
1-2 研究成果 2
1-3 章節簡介 2
第二章 應用T型傳輸線型匹配之寬頻結合功率放大器 3
2-1 研究現況 3
2-2 應用於X頻帶之寬頻結合功率放大器 6
2-2-1 應用於X頻帶之寬頻結合功率放大器設計 6
2-2-2 電路模擬與量測結果 10
2-2-3 結果比較與討論 15
第三章 應用傳輸線型變壓器與單向化預失真功率放大器 17
3-1 磁耦合變壓器與傳輸線型變壓器 17
3-1-1 磁耦合變壓器簡介 17
3-1-2 傳輸線型變壓器簡介 21
3-2 線性化與預失真技術 24
3-2-1 電路簡介 26
3-2-2 線性度之改善 28
3-3 單向化電路與中和化電路 29
3-3-1 電路簡介 30
3-3-2 增益與穩定度之改善 34
3-4 研究現況 37
3-5 應用傳輸線型與預失真於C/X頻帶之單向化寬頻功率放大器 39
3-5-1 應用傳輸線型與預失真於C/X頻帶之單向化寬頻功率放大器設計 39
3-5-2 電路模擬與量測結果 48
3-5-3 結果比較與討論 60
第四章 結論 70
4-1 結論 70
4-2 未來方向 71
參考文獻 72


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