小型化X波段高雜散抑制低相位噪聲微波變頻源的研制
發(fā)布時(shí)間：2018-11-17 14:14
【摘要】：隨著雷達(dá)設(shè)備應(yīng)用渠道的發(fā)展,應(yīng)用于彈載或機(jī)載環(huán)境下的頻率綜合器的需求也會(huì)越來越大,所以必須迅速開展應(yīng)用于復(fù)雜機(jī)械環(huán)境下的頻率綜合器的研究,并切實(shí)提高復(fù)雜環(huán)境下頻率綜合器的技術(shù)指標(biāo),使其既滿足國民經(jīng)濟(jì)的發(fā)展,又滿足國防事業(yè)的需要,具有一定的戰(zhàn)略意義和經(jīng)濟(jì)意義。因此,研制小型化X波段低相位噪聲高雜散抑制微波變頻源是眾多微波組件設(shè)計(jì)及開發(fā)單位的工作重點(diǎn)。本文設(shè)計(jì)了一種高雜散低相噪微波變頻源,介紹了其工作原理、設(shè)計(jì)方法、關(guān)鍵技術(shù)和測試結(jié)果及產(chǎn)品的主要性能指標(biāo)。本論文通過研究以下兩個(gè)方面的設(shè)計(jì)方法實(shí)現(xiàn)了高雜散和低相噪的微波頻率源:1.采用混頻鎖相環(huán)的設(shè)計(jì)方案不但解決了在X波段的多頻點(diǎn)變頻源的低相位噪聲的要求,還產(chǎn)生X波段低相位噪聲的信號。如果是單頻點(diǎn)則可通過直接倍頻或采取介質(zhì)取樣鎖相環(huán)設(shè)計(jì)技術(shù)來實(shí)現(xiàn),但對于多頻點(diǎn)的變頻源則需要采取直接頻率合成或者鎖相環(huán)頻率合成技術(shù)�？紤]到直接頻率合成方式對雜散抑制很難控制,因此采用了鎖相環(huán)頻率合成和混頻處理相結(jié)合的方式,也就是混頻鎖相環(huán)設(shè)計(jì)技術(shù)�；祛l鎖相環(huán)設(shè)計(jì)技術(shù)將混頻處理置于鎖相環(huán)內(nèi),通過鎖相環(huán)環(huán)路濾波器的作用有效的濾除混頻雜散,利用本振信號很低的相位噪聲來保證最終產(chǎn)生信號的相位噪聲要求。2.X波段的多頻點(diǎn)變頻源通過采用高雜散抑制設(shè)計(jì)技術(shù),在利用混頻鎖相環(huán)產(chǎn)生X波段的多頻點(diǎn)變頻源的設(shè)計(jì)中,除需要的9.6GHz~9.9GHz信號外,還存在很多其它多種頻率成分,如100MHz、900MHz和9GHz等等。經(jīng)實(shí)驗(yàn)證明,本文給出的方法設(shè)計(jì)靈活、通用性強(qiáng)、成本低,較好的滿足了對性能指標(biāo)的要求。
[Abstract]:With the development of radar equipment application channel, the demand of frequency synthesizer used in missile or airborne environment will be more and more great. Therefore, the research of frequency synthesizer applied in complex mechanical environment must be carried out rapidly. It is of strategic and economic significance to improve the technical index of frequency synthesizer in complex environment so that it can not only meet the development of national economy but also meet the needs of national defense. Therefore, the development of a miniaturized X-band low phase noise high spurious suppression microwave frequency conversion source is the focus of many microwave module design and development units. In this paper, a kind of microwave frequency conversion source with high spurious and low phase noise is designed, and its working principle, design method, key technology, test results and main performance indexes of the product are introduced. In this paper, a microwave frequency source with high spurious noise and low phase noise is realized by studying the following two design methods: 1. The design scheme of mixed-frequency phase-locked loop not only solves the requirement of low phase noise of multi-frequency point frequency conversion source in X-band, but also produces the signal of X-band low phase noise. If it is a single frequency point, it can be realized by direct frequency doubling or the design technology of dielectric sampling phase-locked loop, but for the multi-frequency point frequency source, direct frequency synthesis or phase-locked loop frequency synthesis technology is needed. Considering that the direct frequency synthesis is difficult to control the spurious suppression, a phase locked loop (PLL) frequency synthesis combined with mixing processing is adopted, that is, the design technique of mixed-frequency PLL (mixed-frequency PLL). The design technology of mixing phase-locked loop puts the mixing process in the phase-locked loop, and effectively filters out the mixed frequency stray by the effect of the phase-locked loop filter. The low phase noise of the local oscillator signal is used to ensure the phase noise requirement of the final signal. 2. The design technique of high spurious suppression is used to design the multi-frequency point frequency converter in X band. In the design of X-band multi-frequency point frequency conversion source generated by mixed-frequency phase-locked loop, there are many other frequency components besides the required 9.6GHz~9.9GHz signal, such as 100MHz, 900MHz, 9GHz and so on. It is proved by experiments that the method presented in this paper is flexible in design, good in generality, low in cost and satisfied with the requirements of performance index.
【學(xué)位授予單位】：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】：TN74
本文編號：2338087
[Abstract]:With the development of radar equipment application channel, the demand of frequency synthesizer used in missile or airborne environment will be more and more great. Therefore, the research of frequency synthesizer applied in complex mechanical environment must be carried out rapidly. It is of strategic and economic significance to improve the technical index of frequency synthesizer in complex environment so that it can not only meet the development of national economy but also meet the needs of national defense. Therefore, the development of a miniaturized X-band low phase noise high spurious suppression microwave frequency conversion source is the focus of many microwave module design and development units. In this paper, a kind of microwave frequency conversion source with high spurious and low phase noise is designed, and its working principle, design method, key technology, test results and main performance indexes of the product are introduced. In this paper, a microwave frequency source with high spurious noise and low phase noise is realized by studying the following two design methods: 1. The design scheme of mixed-frequency phase-locked loop not only solves the requirement of low phase noise of multi-frequency point frequency conversion source in X-band, but also produces the signal of X-band low phase noise. If it is a single frequency point, it can be realized by direct frequency doubling or the design technology of dielectric sampling phase-locked loop, but for the multi-frequency point frequency source, direct frequency synthesis or phase-locked loop frequency synthesis technology is needed. Considering that the direct frequency synthesis is difficult to control the spurious suppression, a phase locked loop (PLL) frequency synthesis combined with mixing processing is adopted, that is, the design technique of mixed-frequency PLL (mixed-frequency PLL). The design technology of mixing phase-locked loop puts the mixing process in the phase-locked loop, and effectively filters out the mixed frequency stray by the effect of the phase-locked loop filter. The low phase noise of the local oscillator signal is used to ensure the phase noise requirement of the final signal. 2. The design technique of high spurious suppression is used to design the multi-frequency point frequency converter in X band. In the design of X-band multi-frequency point frequency conversion source generated by mixed-frequency phase-locked loop, there are many other frequency components besides the required 9.6GHz~9.9GHz signal, such as 100MHz, 900MHz, 9GHz and so on. It is proved by experiments that the method presented in this paper is flexible in design, good in generality, low in cost and satisfied with the requirements of performance index.
【學(xué)位授予單位】：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】：TN74
【共引文獻(xiàn)】
相關(guān)碩士學(xué)位論文 前4條
1 薛龍龍;寬帶通信中有記憶射頻功率放大器建模方法研究[D];西安電子科技大學(xué);2014年
2 周春陽;微波大功率負(fù)載牽引測試系統(tǒng)中的Ka波導(dǎo)調(diào)配器設(shè)計(jì)與測試方法研究[D];西安電子科技大學(xué);2014年
3 宋韜;高效率CMOS功率放大器的研究與設(shè)計(jì)[D];西安電子科技大學(xué);2014年
4 尚贊玉;矢量網(wǎng)絡(luò)分析儀校準(zhǔn)新算法的研究[D];西安電子科技大學(xué);2014年
，本文編號：2338087
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