本文選題：巴倫濾波器 + 帶狀線��； 參考：《南京理工大學(xué)》2017年碩士論文

【摘要】：隨著無線通信技術(shù)的快速發(fā)展,通信行業(yè)對電子設(shè)備、射頻系統(tǒng)以及微波元器件的微型化與高性能提出更高的要求。低溫共燒陶瓷(LTCC)技術(shù)運(yùn)用三維集成技術(shù),可實(shí)現(xiàn)微波元器件的微型化、低成本、高性能。目前,基于LTCC技術(shù)的巴倫濾波器廣泛應(yīng)用于移動通信、藍(lán)牙以及無線局域網(wǎng)等領(lǐng)域。但如何使得巴倫濾波器具有更好的微型化,較好的相位平衡度與幅度平衡度是巴倫濾波器設(shè)計(jì)領(lǐng)域重點(diǎn)研究的問題。本文圍繞基于LTCC技術(shù)的巴倫濾波器微型化展開研究,并取得如下研究成果:(1)分別對兩款巴倫進(jìn)行理論分析,并依據(jù)理論在HFSS軟件進(jìn)行三維建模仿真,設(shè)計(jì)了集總參數(shù)窄帶巴倫與三線改進(jìn)型Marchand寬帶巴倫,實(shí)現(xiàn)了微型化、相位平衡度好,幅度平衡度好等性能,尺寸均為3.2mm×4.5mm×0.95mm。(2)分別對三款LTCC帶通濾波器進(jìn)行理論分析與設(shè)計(jì),包括半集總參數(shù)濾波器、四級分布參數(shù)濾波器、六級分布參數(shù)濾波器。這些濾波器通過引入交叉耦合結(jié)構(gòu),增加傳輸零點(diǎn),從而實(shí)現(xiàn)了較高的帶外抑制。并通過并聯(lián)諧振單元間電磁耦合的傳輸方式實(shí)現(xiàn)濾波器的微型化,三款濾波器尺寸均小于3.2mm×4.5mm×1.4mm。(3)將設(shè)計(jì)的巴倫與濾波器通過垂直通孔互連的方式分別級聯(lián),得到三款組合型巴倫濾波器,這種組合型巴倫濾波器具有頻段、帶寬、結(jié)構(gòu)組合靈活的特點(diǎn),應(yīng)用更加廣泛,相位平衡度好,并且組合型巴倫濾波器比巴倫與濾波器尺寸和小,尺寸均小于3.2mm×4.5mm× 1.98mm。(4)采用短路耦合帶狀線作為諧振單元,依據(jù)短路耦合帶狀線理論,設(shè)計(jì)四款單一元件型巴倫濾波器。這種巴倫濾波器可以同時實(shí)現(xiàn)巴倫與濾波器的功能,并且結(jié)構(gòu)簡單,尺寸更小,具有微型化、相位平衡度好等優(yōu)點(diǎn),尺寸均小于2.5mm×2.8mm×1.1mm。
[Abstract]:With the rapid development of wireless communication technology, the communication industry has put forward higher requirements for the miniaturization and high performance of electronic equipment, radio frequency system and microwave components.The low temperature co-fired ceramic LTCC can realize the miniaturization, low cost and high performance of microwave components by using 3D integration technology.At present, Barron filter based on LTCC technology is widely used in mobile communication, Bluetooth and wireless local area network.However, how to make the Barron filter have better miniaturization, better phase balance and amplitude balance are the key issues in the design field of Barron filter.In this paper, the miniaturization of Barron filter based on LTCC technology is studied, and the following research results are obtained: 1) the two models of Baron are theoretically analyzed, and the 3D modeling and simulation are carried out in HFSS software according to the theory.The lumped parameter narrowband Barron and the three-wire modified Marchand broadband Barron are designed. The miniaturization, good phase balance and good amplitude balance are realized. The size of the three LTCC bandpass filters are all 3.2mm 脳 4.5mm 脳 0.95mm. 2) the three LTCC bandpass filters are theoretically analyzed and designed.It includes half lumped parameter filter, four-stage distributed parameter filter and six-stage distributed parameter filter.These filters increase transmission zeros by introducing cross-coupling structures, thus achieving higher out-of-band suppression.The filter is miniaturized by electromagnetic coupling between parallel resonant units. The three filters are smaller in size than 3.2mm 脳 4.5mm 脳 1.4mm.Three kinds of combinatorial Barron filters are obtained, which have the advantages of flexible frequency band, bandwidth, flexible structure, wider application, better phase balance, and smaller size and size of the combined Barron filter than that of the Barron filter.All of them are smaller than 3.2mm 脳 4.5mm 脳 1.98mm. 4) based on the theory of short-circuit coupled banded lines, four single-element Barron filters are designed by using short-circuit coupled banding lines as resonant units.This kind of Barron filter can realize the function of Barron and filter at the same time. It has the advantages of simple structure, smaller size, miniaturization and good phase balance. The size of the filter is smaller than 2.5mm 脳 2.8mm 脳 1.1 mm.
【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN713

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