發(fā)布時(shí)間：2019-04-21 16:26

【摘要】：微波光子學(xué)主要研究光信號(hào)與微波信號(hào)的相互作用,研究的范圍包括工作在微波頻段的光學(xué)器件以及微波儀器在光學(xué)系統(tǒng)中的應(yīng)用。與傳統(tǒng)的微波信號(hào)處理技術(shù)相比,微波光子學(xué)具有廣闊的應(yīng)用前景,這主要是因?yàn)檫@一信號(hào)處理技術(shù)具有工作帶寬大,損耗小,抗電磁干擾能力強(qiáng)等優(yōu)點(diǎn)。本研究主要對(duì)微波光子濾波器和微波光子移相器兩個(gè)方向進(jìn)行相關(guān)的探究,由以下幾個(gè)部分組成:(1)具有平坦群延時(shí)的高精度微波光子陷波濾波器的設(shè)計(jì)。首先,通過理論分析找出了影響微波光子濾波器群延時(shí)的原因:濾波器的沖擊響應(yīng)分布是否對(duì)稱。然后,仿真和實(shí)驗(yàn)驗(yàn)證了這一結(jié)論。最后,實(shí)驗(yàn)實(shí)現(xiàn)了一個(gè)陷波微波光子濾波器,濾波器在通帶內(nèi)的幅值抖動(dòng)很小,陷波深度為40d Bm,群延時(shí)抖動(dòng)不大于±25ps。(2)大帶寬微波光子移相器設(shè)計(jì)。提出了一種基于雙平行馬赫曾德爾調(diào)制器和可調(diào)諧檢偏器的大帶寬微波光子移相器設(shè)計(jì)方案,在保證強(qiáng)度輸出不變的情況下實(shí)現(xiàn)360°全范圍移相,同時(shí)移相器的低頻工作帶寬得到了顯著的提升,可以運(yùn)用于2~26.5GHz和4~40GHz的電子對(duì)抗系統(tǒng)中。(3)大帶寬微波光子移相器的抖動(dòng)抑制。通過分析找出了導(dǎo)致移相器幅值和相位抖動(dòng)的原因:電橋的幅值和相位不平衡。并提出了相應(yīng)的決解方案:加入光濾波器濾除由于電橋幅值和相位不平衡引起的高頻殘余邊帶。最后實(shí)驗(yàn)實(shí)現(xiàn)了移相器在4~40GHz頻率范圍內(nèi)從-180°~+180°移相的過程中,相位波動(dòng)從±12°下降到了±3.8°。
[Abstract]:Microwave photonics mainly studies the interaction between optical signals and microwave signals, including optical devices operating in microwave frequency band and the application of microwave instruments in optical systems. Compared with the traditional microwave signal processing technology, microwave photonics has a broad application prospect, which is mainly because the signal processing technology has the advantages of large bandwidth, low loss and strong ability to resist electromagnetic interference. In this paper, the microwave photon filters and microwave photon phase shifters are discussed, which are composed of the following parts: (1) the design of high precision microwave photon notch filters with flat group delay. Firstly, the reason that affects the delay of microwave photonic filter group is found out by theoretical analysis: whether the impulse response distribution of the filter is symmetric or not. Then, simulation and experiment verify this conclusion. Finally, a notch microwave photonic filter is implemented. The amplitude jitter of the filter in the pass band is very small, and the notch depth of 40 d Bm, group delay jitter is not greater than the design of the multiband microwave photon phase shifter with a range of 25 PS. (2). A design scheme of microwave photon phase shifter with large bandwidth based on double parallel Mach Zehnder modulator and tunable polarizer is presented in this paper, which can realize 360 擄full range phase shifter under the same intensity output. At the same time, the low frequency bandwidth of the phase shifter has been greatly improved, which can be used in the electronic countermeasure system of 2~26.5GHz and 4~40GHz. (3) the jitter suppression of the microwave photon phase shifter with large bandwidth. The reasons for the amplitude and phase jitter of the phase shifter are analyzed: the imbalance between the amplitude and the phase of the bridge. The corresponding decision scheme is put forward: the optical filter is added to filter the high frequency residual sideband caused by the unbalanced amplitude and phase of the bridge. Finally, the phase shift of the phase shifter from-180 擄to 180 擄in the frequency range of 4~40GHz is realized, and the phase fluctuation decreases from 鹵12 擄to 鹵3.8 擄.
【學(xué)位授予單位】：暨南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN713;TN623

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 卿健,石艷玲,賴宗聲,朱自強(qiáng);MEMS移相器及其在微型通信系統(tǒng)中的應(yīng)用[J];微電子學(xué);2002年04期

2 李煒,石艷玲,朱自強(qiáng),賴宗聲;微波MEMS移相器的特性分析與實(shí)現(xiàn)[J];半導(dǎo)體技術(shù);2003年11期

3 婁建忠,趙正平,楊瑞霞,呂苗,胡小東;射頻微機(jī)械移相器[J];半導(dǎo)體技術(shù);2004年10期

4 周英平;劉祖望;王榮博;;新型數(shù)字移相器的設(shè)計(jì)[J];計(jì)算機(jī)工程與設(shè)計(jì);2006年11期

5 黎步銀;龐曉玲;黃兆祥;;向列型液晶移相器[J];電子元件與材料;2007年05期

6 唐愷;吳群;楊國輝;孫鳳林;傅佳輝;馬偉;;一種新型MEMS移相器設(shè)計(jì)[J];遙測(cè)遙控;2007年05期

7 王道檔;楊甬英;劉東;田超;駱永潔;卓永模;;壓電移相器的空間旋轉(zhuǎn)誤差建模與實(shí)驗(yàn)分析[J];光電子.激光;2009年05期

8 王倡獻(xiàn);熊祥正;肖華清;;一種90°分布式MEMS移相器的設(shè)計(jì)[J];微計(jì)算機(jī)信息;2009年26期

9 趙世巍;唐宗熙;張彪;;一種新型的六位數(shù)字移相器的設(shè)計(jì)[J];電子測(cè)量與儀器學(xué)報(bào);2010年01期

10 劉sチ，

本文編號(hào)：2462362