本文關(guān)鍵詞： 枝節(jié)加載 雙模諧振器 共用諧振器 雙工器 高溫超導(dǎo) 階梯阻抗諧振器　出處：《華東交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：移動(dòng)通信是當(dāng)今中國(guó)發(fā)展最快的產(chǎn)業(yè)之一。微波射頻電路是智能終端的主要組成部分，它是連接終端與傳播媒介的重要橋梁。作為移動(dòng)通信系統(tǒng)射頻前端舉足輕重的元件之一，雙工器起著濾波和分離信號(hào)的作用，它的性能的好壞直接影響到整個(gè)通信系統(tǒng)的性能。因此，對(duì)雙工器進(jìn)行全面深入的研究具有極其重大的意義。本文對(duì)雙工器的小型化進(jìn)行了深入的研究，具體的研究?jī)?nèi)容包括以下幾個(gè)部分： 首先，研究了基于枝節(jié)加載雙模諧振器的雙工器，利用枝節(jié)加載雙模諧振器自身產(chǎn)生的傳輸零點(diǎn)來(lái)改善雙工器的隔離度。雙工器的兩個(gè)通道濾波器分別由兩個(gè)枝節(jié)加載雙模諧振器組成。然后利用輸入和輸出端的源負(fù)耦合在阻帶產(chǎn)生的傳輸零點(diǎn)來(lái)進(jìn)一步改善雙工器的隔離度。最后利用電磁仿真軟件進(jìn)行理論驗(yàn)證，設(shè)計(jì)了一款應(yīng)用4G無(wú)線通信系統(tǒng)的雙工器。 其次，研究了新型的基于枝節(jié)加載諧振器的雙工器。利用一個(gè)共用枝節(jié)加載雙模諧振器產(chǎn)生的一個(gè)諧振模式與另外兩個(gè)枝節(jié)加載雙模諧振器產(chǎn)生的兩個(gè)模式耦合分別構(gòu)成雙工器的一個(gè)發(fā)射通帶或者接收通帶。此外利用枝節(jié)加載雙模諧振器自身產(chǎn)生的傳輸零點(diǎn)來(lái)改善雙工器的隔離度。最后設(shè)計(jì)了一款運(yùn)用于UMTS/WCDMA系統(tǒng)的微帶雙工器來(lái)驗(yàn)證設(shè)計(jì)理論的正確性。 然后，研究了新型的基于雙諧振螺旋諧振器和單諧振螺旋諧振器的高溫超導(dǎo)雙工器。單諧振螺旋諧振器被獨(dú)立的用于設(shè)計(jì)兩個(gè)通道濾波器，雙諧振螺旋諧振器用作兩個(gè)通道濾波器的共用諧振器。雙諧振螺旋諧振器是改進(jìn)后的枝節(jié)加載諧振器，它產(chǎn)生兩個(gè)諧振器頻率用于設(shè)計(jì)雙工器的兩個(gè)通道。由于雙諧振螺旋諧振器和單諧振螺旋諧振器是相異的諧振器，它們不同的諧波頻率形成了寬阻帶的效果。此外諧振器按照新型的耦合結(jié)構(gòu)進(jìn)行連接使雙工器取得了更加緊湊的尺寸。最后根據(jù)上述的方法，設(shè)計(jì)了一款工作在1.8/2.4GHz頻段的高溫超導(dǎo)雙工器。 最后，研究了具有新型耦合結(jié)構(gòu)的基于階梯阻抗諧振器的雙工器。兩個(gè)階梯阻抗諧振器用作兩個(gè)通道濾波器的共用諧振器，該共用諧振器分別與兩個(gè)相同的階梯阻抗諧振器耦合形成雙工器的兩個(gè)通道濾波器。利用兩個(gè)階梯阻抗諧振諧振器代替?zhèn)鹘y(tǒng)的阻抗匹配網(wǎng)絡(luò)使雙工器獲得了緊湊電路尺寸。最后設(shè)計(jì)了一款工作在1.89/2.35GH頻段應(yīng)用4G無(wú)線通信系統(tǒng)的雙工器。
[Abstract]:Mobile communication is one of the fastest-growing industries in China today. Microwave RF circuit is the main component of intelligent terminal, and it is an important bridge between terminal and media. As one of the most important components of RF front end of mobile communication system, microwave RF circuit is one of the most important components in the RF front end of mobile communication system. Duplexer acts as a filter and separation signal, and its performance directly affects the performance of the whole communication system. In this paper, the miniaturization of duplex is deeply studied, and the specific research content includes the following parts:. Firstly, the double-mode resonator based on branch loading is studied. The isolation of the duplex is improved by using the branch loading dual mode resonator with its own transmission 00:00. The two channel filters of the duplex are composed of two branch loaded dual mode resonators respectively. Then the input and output end of the double mode resonator is used to improve the isolation degree of the duplex resonator. The transmission of source and negative coupling in the stopband is 00:00 to further improve the isolation of the duplex. Finally, the electromagnetic simulation software is used to verify the theory. A duplex for 4G wireless communication system is designed. Secondly, A new type of duplex based on branch loaded resonator is studied. A resonant mode generated by a common branch loaded double mode resonator is constructed separately from two modes generated by the other two branch loaded double mode resonators. A transmission pass band or receiving pass band of a duplex. In addition, the isolation of the duplex is improved by using the branch loading dual mode resonator at 00:00. Finally, a microstrip duplex used in UMTS/WCDMA system is designed. To verify the correctness of the design theory. Then, a novel high temperature superconducting duplex based on double resonant spiral resonator and single resonant spiral resonator is studied. The single resonant spiral resonator is independently used to design two channel filters. A double resonant spiral resonator is used as a common resonator for two channel filters. A double resonant spiral resonator is an improved branch loaded resonator. It generates two resonator frequencies for the design of two channels of duplex. Because the double resonant spiral resonator and the single resonant spiral resonator are different resonators, Their different harmonic frequencies result in a wide stopband effect. In addition, the resonator is connected according to a new coupling structure to achieve a more compact size. Finally, according to the above method, A high temperature superconducting duplex working at 1.8 / 2.4 GHz is designed. Finally, a new type of coupled-structure duplex based on step impedance resonator is studied. Two step impedance resonators are used as common resonators for two channel filters. The common resonator is coupled with two identical step impedance resonators to form two channel filters of the duplex respectively. Instead of the traditional impedance matching network, two step impedance resonant resonators are used to make the duplex compact. Circuit size. Finally, a duplex working in 1.89 / 2.35 GH band using 4G wireless communication system is designed.
【學(xué)位授予單位】：華東交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN929.5;TN631.2

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本文編號(hào)：1526924