倍频器

Voltage and current relationship is used to qualitatively analyze frequency doubler.

在倍频器的研制中，我们使用电压电流的关系来分析倍频器。

The article mainly describes the properties of millimeter wave, millimeter wave sources and millimeter wave multiplier's nowadays development at the first chapter. It also analyses several common multiplying methods associated with the subject's requirement and the realistic conditions according to which a proposal is confirmed that three-stage cascade connection fulfill 8 times multiplying.

本文综述了毫米波特点，毫米波源、毫米波倍频器的发展现状，分析了几种通常采用的倍频方式，并以此为依据结合课题需要和现实条件确定了采用三级级联倍频实现八次倍频的方案。

The quadrupler consists of two broadband doublers, the broadband microstrip bandpass filter, the millimetre-wave amplifier and the microstrip-to-waveguide transition.

整个倍频器主要由两级宽带二倍频器、宽带带通滤波器、毫米波放大器、微带—波导转换五部分组成。

There are three parts included. The first part is the prepositive-amplifier, it gets broadband high gain and flat frequency response. The second part is the U band quadrupler, which composed of two doublers using a PHEMT chip HMMC-5040, a Schottky diode of DMK-2790, a HMMC-5040 amplifier, and a fin-line transitional stage. Maximum output power higher than 60mW is obtained in V band. The third part is a 2nd harmonic gunn oscillator injection locked by the Fundamental Wave,which get about 2GHz locked bandwidth in W band.

电路主要由三部分组成，第一部分为采用HMMC-5618设计的前置放大器，实现了宽带高增益和平坦的频率响应；第二部分为设计的主体，由HMMC-5040设计的二倍频器、DMK-2790设计的二倍频器、HMMC-5040设计的放大器及鳍线过渡段组成的U波段四倍频器，在U波段实现了最高60mW以上的输出功率；第三部分为基波注入锁定谐波Gunn振荡器，在W波段实现了近2GHz锁定带宽。

Multi-conductor coupled-line Marchand baluns and broadband frequency doublers and mixers are presented in this dissertation. This research focuses on the development of miniature broadband frequency conversion circuits including frequency doublers, fundamental down-conversion mixer, and IQ-demodulator.

本论文主要是讨论多金属耦合线马逊平衡不平衡转换器及宽频的倍频器及混频器，研究方向是著重於发展包含倍频器、降频器及正交解调变器在内的微小化宽频频率转换电路。

The equations for two-conductor coupled-line Marchand baluns are derived. The analysis and systematic design procedure for multi-conductor coupled-line Marchand baluns are also presented, and verified with a few fabricated multi-conductor coupled-line Marchand baluns. Two MMIC broadband diode frequency doublers using multi-conductor coupled-line Marchand baluns are implemented to demonstrate the design procedure of multi-conductor coupled-line Marchand baluns. The MMICs achieve miniature chip areas with broadband performances in millimeter-wave regime.

二金属耦合线马逊平衡不平衡转换器的方程式推导及多金属耦合线马逊平衡不平衡转换器的分析及系统化设计流程也在此论文中被提出，并且用许多实际制作的平衡不平衡转换器做验证，此外，两个微波单晶积体电路的宽频二极体倍频器包含多金属耦合线马逊平衡不平衡转换器也用来验证此多金属耦合线马逊平衡不平衡转换器的系统化设计流程，这两个微波单晶积体电路在毫米波的频段内都达到微小的晶片面积与宽频的响应。

For the chip of frequency multiplier, 2 and 16 times of frequency multiplier with 23 GHz output are both gotten by test.

改进异或门实现的倍频器，不仅在23GHz上得到较好的二倍频测试结果，还在十六倍频上得到结果。

A novel programmable adaptive digital frequency multiplier is developed to realize frequency tracking with large multiplication factor.

研制了新型的可编程自适应数字倍频器来实现大倍频系数的倍频整周期跟踪采样。

First of all, the character of the microstrip transmission line is introduced. Then the character of the PN-varactor dioide and the principle of frequency multiplier are studied.

而后介绍了PN结变容管的特性及变容管倍频器倍频原理，这是研究非线性电抗倍频器的理论基础。

So we should consider choosing the way to design it according to a variety of factors.A NLTL frequency tripler in Ka-band are designed by loading eleven varactors in a high impedance microstrip line in the thesis.

本文利用高阻抗微带线加载11个变容二极管实现了非线性传输线八毫米三倍频器，该倍频器的缺点就是管子太多，不利于小型化。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。