微波毫米波固態(tài)驅(qū)動前端關(guān)鍵技術(shù)研究
發(fā)布時間：2018-12-06 08:50
【摘要】：微波/毫米波功率模塊是由固態(tài)驅(qū)動前端、行波管放大器以及直流電源構(gòu)成的微波/毫米波電子模塊。它既具有了固態(tài)驅(qū)動前端的低噪聲、高增益的優(yōu)勢,也具有了電子真空器件工作頻帶寬、大功率、高效率的特點。在現(xiàn)代軍事電子尤其是電子戰(zhàn)中的發(fā)射系統(tǒng)中得到廣泛的應(yīng)用。由于電子真空器件的增益不平坦,往往呈現(xiàn)兩邊低,中間高的特點。為了使其能在各個頻點都實現(xiàn)等功率輸出,往往需要對其輸入功率進行一定程度的調(diào)節(jié)。固態(tài)驅(qū)動前端除了能夠為行波管放大器提供必要的功率驅(qū)動外,也能對其輸入功率進行均衡。均衡器作為其中的關(guān)鍵器件,按照需求對各頻點的功率進行一定的衰減。本文在傳統(tǒng)均衡器機構(gòu)的基礎(chǔ)上,為了提高均衡器的設(shè)計精度,提高均衡曲線的多樣性,特別是解決均衡曲線的頻帶搬移問題,以及工作帶寬的連續(xù)控制問題,采用一種新型的枝節(jié)加載型微帶均衡器。利用在枝節(jié)與吸收電阻接觸點加載一段枝節(jié)的辦法,改變輸入阻抗開路點的位置,并依靠原枝節(jié)鎖定諧振頻率,解決了開路點搬移過程中的諧振點偏移問題,簡化了均衡器設(shè)計。并在此基礎(chǔ)上提出一種開/短路枝節(jié)均衡器,利用開路及短路枝節(jié)的阻抗相交特性,改變諧振枝節(jié)的特性阻抗,使其枝節(jié)開路點同時壓縮或者擴張,實現(xiàn)了均衡曲線工作帶寬的連續(xù)控制,彌補了傳統(tǒng)均衡結(jié)構(gòu)在此方面的不足。本文還研制了2~6GHz和32~40GHz兩個頻段的功率驅(qū)動模塊,經(jīng)過測試,在每個頻點都達到了1.5dB的精度要求。
[Abstract]:Microwave / millimeter wave power module is a microwave / millimeter wave electronic module composed of solid state driving front end, traveling wave tube amplifier and DC power supply. It not only has the advantages of low noise and high gain of solid state driving front end, but also has the characteristics of frequency bandwidth, high power and high efficiency of electronic vacuum device. It is widely used in modern military electronics, especially in the launching system of electronic warfare. Because the gain of the electronic vacuum device is not flat, it often presents the characteristics of low side and high center. In order to achieve equal power output at all frequency points, it is necessary to adjust the input power to a certain extent. In addition to providing necessary power drive for TWT amplifiers, the solid-state driving front end can also equalize the input power of TWT amplifiers. As one of the key devices, the equalizer attenuates the power of each frequency point according to the demand. In this paper, based on the traditional equalizer mechanism, in order to improve the design accuracy of the equalizer and improve the diversity of the equalization curve, especially to solve the problem of the band shift of the equalizer and the continuous control of the working bandwidth. A new branch loaded microstrip equalizer is used. By loading a branch at the contact point between the branch and the absorption resistance, the position of the input impedance open circuit point is changed, and the resonant frequency is locked by the original branch, which solves the problem of the resonance point deviation during the open circuit point shift. The equalizer design is simplified. On the basis of this, an open / short circuit branch equalizer is proposed to change the characteristic impedance of the resonant branch by using the impedance intersecting characteristic of the open and short circuit branches, so that the branch opening point can be compressed or expanded at the same time. The continuous control of the working bandwidth of the equalization curve is realized, which makes up for the deficiency of the traditional equalization structure. The power driving module of 2~6GHz and 32~40GHz is also developed in this paper. After testing, the precision of 1.5dB is achieved at each frequency point.
【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】：TN715
本文編號：2365773
[Abstract]:Microwave / millimeter wave power module is a microwave / millimeter wave electronic module composed of solid state driving front end, traveling wave tube amplifier and DC power supply. It not only has the advantages of low noise and high gain of solid state driving front end, but also has the characteristics of frequency bandwidth, high power and high efficiency of electronic vacuum device. It is widely used in modern military electronics, especially in the launching system of electronic warfare. Because the gain of the electronic vacuum device is not flat, it often presents the characteristics of low side and high center. In order to achieve equal power output at all frequency points, it is necessary to adjust the input power to a certain extent. In addition to providing necessary power drive for TWT amplifiers, the solid-state driving front end can also equalize the input power of TWT amplifiers. As one of the key devices, the equalizer attenuates the power of each frequency point according to the demand. In this paper, based on the traditional equalizer mechanism, in order to improve the design accuracy of the equalizer and improve the diversity of the equalization curve, especially to solve the problem of the band shift of the equalizer and the continuous control of the working bandwidth. A new branch loaded microstrip equalizer is used. By loading a branch at the contact point between the branch and the absorption resistance, the position of the input impedance open circuit point is changed, and the resonant frequency is locked by the original branch, which solves the problem of the resonance point deviation during the open circuit point shift. The equalizer design is simplified. On the basis of this, an open / short circuit branch equalizer is proposed to change the characteristic impedance of the resonant branch by using the impedance intersecting characteristic of the open and short circuit branches, so that the branch opening point can be compressed or expanded at the same time. The continuous control of the working bandwidth of the equalization curve is realized, which makes up for the deficiency of the traditional equalization structure. The power driving module of 2~6GHz and 32~40GHz is also developed in this paper. After testing, the precision of 1.5dB is achieved at each frequency point.
【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】：TN715
【共引文獻】
相關(guān)碩士學(xué)位論文 前6條
1 唐勝;微波固態(tài)驅(qū)動前端增益均衡器研究[D];電子科技大學(xué);2011年
2 趙曉坤;微波固態(tài)功率驅(qū)動模塊及其關(guān)鍵技術(shù)研究[D];電子科技大學(xué);2010年
3 周太富;微波與毫米波增益均衡及放大技術(shù)研究[D];電子科技大學(xué);2012年
4 李嬌;寬帶MPM驅(qū)動技術(shù)研究[D];電子科技大學(xué);2012年
5 周沛翰;MPM寬帶功率驅(qū)動技術(shù)研究[D];電子科技大學(xué);2013年
6 王歡;毫米波增益均衡器[D];電子科技大學(xué);2013年
，本文編號：2365773
本文鏈接：http://sikaile.net/kejilunwen/dianzigongchenglunwen/2365773.html
最近更新
教材專著
