使用雙頻複合式左右手傳輸線實現諧波抑止之逆F型功率放大器

Inverse Class-F Power Amplifier Using Dual-Band Composite Right/Left-Handed Transmission Lines as a Harmonic Trap

李元鈞(Yuan-Chun Li)

指導教授 ： 盧信嘉

國立臺灣大學/電機資訊學院/電子工程學研究所/碩士(2014年)

https://doi.org/10.6342/NTU.2014.01867

摘要

本論文使用雙頻左右手傳輸線作為諧波調整網路，實現了一個操作在2.4GHz的逆F類功率放大器。主動電路部份使用TSMC 0.18μm製程及其包含的被動元件設計而成的晶片，而雙頻左右手傳輸線則使用低溫共燒陶瓷製程設計，並且利用覆晶轉接的方式將兩種製程進行整合。
在諧波調整網路設計上，使用了一組串聯雙頻左右手傳輸線與一組並聯開路雙頻左右手傳輸線來抑止二次及三次項的諧波，並且將基頻訊號匹配至理想的阻抗位置。利用左右手傳輸線的特性來進行設計，可以將電路的尺寸與複雜度大幅的下降，並且有機會對於更高次項的諧波阻抗進行控制。最後完成的逆F類功率放大器具有在模擬中最高52%的功率附加效率，13dB的增益以及在1dB功率壓縮點為16dBm的輸出功率。

關鍵字

功率放大器 ； 逆F類功率放大器 ； 高效率

並列摘要

In this thesis, an inverse-class-F power amplifier at 2.4GHz using dual-band composite right/left handed (DB-CRLH) transmission line as a harmonic tuner is realized. The active device we used is TSMC 0.18μm CMOS with its passive components on chip and the dual-band composite right/left handed transmission line is implemented by LTCC (low temperature co-fired ceramics). Both parts are combined by using flip-chip interconnects.
The harmonic tuners use one series DB-CRLH-TL and one open DB-CRLH-TL to suppress 2nd, 3rd harmonics and to match at the fundamental frequency. The properties of the CRLH-TLs allow the size reduction of the harmonic trap also the simplification of the design. This technology can be expanded to tune out higher order harmonics with a simplified circuit structure. The proposed inverse class-F power amplifier with a maximum PAE of 52%, the gain of 13dBm and the output 1 dB compression of 16dBm.

並列關鍵字

Power amplifier ； inverse class F amplifier ； high efficiency.

參考文獻

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