基于基片集成波導(dǎo)結(jié)構(gòu)的小型化無源微波器件研究
發(fā)布時間:2018-06-01 22:18
本文選題:基片集成波導(dǎo) + 濾波器 ; 參考:《西安電子科技大學(xué)》2015年碩士論文
【摘要】:基片集成波導(dǎo)是一種近十年來新提出的傳輸線結(jié)構(gòu),通過在低損耗的介質(zhì)基片上進行雙面覆蓋金屬,并在基片上引入兩列周期性排列的金屬化通孔來實現(xiàn),整個基片集成波導(dǎo)在結(jié)構(gòu)上類似于介質(zhì)填充的金屬波導(dǎo),其電磁傳播特性也相似;刹▽(dǎo)可以使用PCB、LTCC等工藝進行加工,其平面結(jié)構(gòu)的特點使得易于和其它的平面電路如微帶線、帶狀線、共面波導(dǎo)等相集成,在具有低插損、高Q值、高功率容量、低輻射等優(yōu)點的同時,還具有小型化、低成本、便于量產(chǎn)的特點,適應(yīng)了當(dāng)前微波技術(shù)的發(fā)展趨勢,具有廣闊的發(fā)展前景。本文圍繞基于基片集成波導(dǎo)的小型化無源微波器件展開了研究,具體的研究工作和成果概括如下:1、基片集成波導(dǎo)的基本結(jié)構(gòu)研究。包括基片集成波導(dǎo)的傳播特性、金屬化通孔的設(shè)計以及介質(zhì)基片的選擇,同時還對于基片集成波導(dǎo)與其他平面?zhèn)鬏斁轉(zhuǎn)換器進行了介紹,包括基片集成波導(dǎo)與微帶線、共面波導(dǎo)的轉(zhuǎn)換器,以及耦合形式的轉(zhuǎn)換器。2、LTCC交指型帶通濾波器研究。首先研究了濾波器設(shè)計的基本理論以及耦合諧振器電路,在此基礎(chǔ)上,基于LTCC工藝設(shè)計了一款工作于10GHz的垂直交指型帶通濾波器,以及一款工作于10GHz的源和負載耦合的垂直交指帶通濾波器,引入源和負載耦合后,濾波器在有限的頻帶內(nèi)產(chǎn)生了傳輸零點,過渡帶更加陡峭。3、基片集成波導(dǎo)三維LEGO結(jié)構(gòu)研究。對LEGO結(jié)構(gòu)的基本單元E面彎角進行了深入的研究,綜合考慮等效電路及影響其傳輸性能的幾個因素,設(shè)計了一款基于LEGO結(jié)構(gòu)的用于微波無線連接(工作于10.7~11.7GHz)的基片集成波導(dǎo)魔T,并采用人工蜂群算法對其進行優(yōu)化,仿真結(jié)果與實測結(jié)果取得了基本一致的效果。4、非完整模基片集成波導(dǎo)諧振器研究。首先研究了四分之一;刹▽(dǎo)諧振器不同諧振頻率下的諧振模式,同時還研究了八分之一模諧振器的主模,基于耦合諧振器電路設(shè)計了一款工作于10GHz的四分之一;刹▽(dǎo)三模帶通濾波器,一款工作于5.8GHz的四分之一模的直接耦合帶通濾波器以及一款工作于10GHz的四分之一模與八分之一模相互耦合的帶通濾波器,仿真結(jié)果與實測結(jié)果取得了良好的一致性。
[Abstract]:The substrate integrated waveguide is a newly proposed transmission line structure in the last ten years. By covering metal on a low loss dielectric substrate and introducing a metallized through hole with two columns of periodic arrangement on the substrate, the whole substrate integrated waveguide is similar to a metal waveguide filled with medium, and its electromagnetic propagation characteristics are also phase. Like. The substrate integrated waveguide can be processed by PCB, LTCC and other processes. The features of its plane structure make it easy to integrate with other planar circuits, such as microstrip, strip line, coplanar waveguide and so on. In the same time, it has the advantages of low insertion loss, high Q value, high power capacity, low radiation and so on. It also has the characteristics of miniaturization, low cost, and convenient for production. The development trend of the current microwave technology has a broad prospect. This paper focuses on the research of miniaturized passive microwave devices based on the substrate integrated waveguide. The specific research work and achievements are summarized as follows: 1, the basic structure of the substrate integrated waveguide, including the propagation characteristics of the substrate integrated waveguide and the design of the metallized through hole As well as the selection of dielectric substrates, the basic chip integrated waveguide and other planar transmission line converters are also introduced, including the substrate integrated waveguide and microstrip line, the coplanar waveguide converter, and the coupling form converter.2, the LTCC interdigital bandpass filter. First, the basic theory and coupling of the filter design are studied. The resonator circuit, based on this, designs a vertical cross finger bandpass filter working on 10GHz based on the LTCC process, and a vertical cross finger bandpass filter that works on the source and load coupling of the 10GHz. After the coupling of the source and load, the filter produces the transmission zero in the limited frequency band, the transition band is steepening.3, the substrate is more steep. The three-dimensional LEGO structure of integrated waveguide is studied. The basic unit E bending angle of the LEGO structure is deeply studied. Considering the equivalent circuit and several factors affecting its transmission performance, a base chip integrated waveguide magic T for microwave wireless connection (working in 10.7~11.7GHz) based on LEGO structure is designed, and the artificial bee colony algorithm is used. It is optimized, the simulation results and the measured results have achieved the basic effect.4, the non complete mode substrate integrated waveguide resonator research. First, the resonant modes of the 1/4 mode substrate integrated waveguide resonators at different resonant frequencies are studied. At the same time, the main modes of the 1/8 mode resonators are also studied, based on the coupling resonator circuit setting. Plan a 10GHz work in the 1/4 the third mock exam mode substrate integrated waveguide bandpass filter, bandpass filter with 1/8 mode 1/4 mode 1/4 mode a direct coupling workingwithin 5.8GHz band pass filter and a 10GHz coupling, simulation results and experimental results and a good agreement Sex.
【學(xué)位授予單位】:西安電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:TN713
【參考文獻】
相關(guān)期刊論文 前1條
1 塔利克·吉納菲;吳柯;;基片集成波導(dǎo)技術(shù):最新的發(fā)展及未來的展望(英文)[J];電子科技大學(xué)學(xué)報;2013年02期
,本文編號:1965899
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