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- varactor multiplier chain 变容管倍频链
- In this paper,with the help of double balance mixer,design and manufacture of S-band wide-band & frequency multiplier chain is introduced,of which bandwidth is biggerthan 13%,harmonic rejection is bigger than 45 dB,output fluctuation is less than 1 dB. 本文介绍使用双平衡混频器设计制作S波段宽带八倍频链带宽大于13%25,谐波抑制大于45dB、输出波动小于1dB的良好性能。
- It adopts DDS + PLL frequency synthesizer scheme to realize low end frequency 2~4GHz output,then through segment amplifying multiplying chain realize from 2~4GHz expand to 2~12GHz,and the output frequency is selected by microwave switch. 采用DDS+PLL的混合频率合成方案实现低端频率2~4GHz的输出,再通过分段放大倍频链路实现从2~4GHz到2~12GHz的扩频,并由微波开关控制选频输出。
- varactor multiplier circuit 压变电容乘法电路
- varactor multiplier 变容管倍频器
- The chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
- The chain has run foul of some plants in the water. 铁链缠在水中的一些植物上。
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
- These two pieces of the chain hook together. 这两个链环套在一起。
- He detached a link from a chain. 他从链子上拆下一个链环。
- The anchor chain took charge and ran out. 锚链失去控制而滑了出来。
- A pendant worn on a chain around the neck. 垂饰挂在脖子项链上的垂饰物
- He runs a chain of pasta restaurant. 他经营着一个面食餐馆联号。
- The multiplier for the estimate of man-hour costs to take care of overheads and fringe benefits. 工时成本估计的乘数及以满足福利费和经营管理费的需要。
- I detached my watch from the chain. 我从表链上解下手表。
- As he fell, he caught hold of a hanging chain. 当他跌倒时,便往一条悬挂的绳子抓去。
- The dog was fastened to a post by a chain. 那条狗被链条拴在柱子上。
- The traffic accident led to a chain of events. 交通事故引起了一连串的事件。
- As he fell, he grasped at a hanging chain. 当他跌倒时,便往一条悬挂的绳子抓去。