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射频
功放没人要 今天晚上可要开拆了
请教哪位电子大师教我diy隔空点亮节能灯、。
fv
8年9个月前
回复于
电子技术
内容:这个难道不是传说中的
射频
?
【4】我们正在努力的开发KCDEMO
bg2bhc
11年0个月前
回复于
无线电
内容:虎哥 发表于 2014-1-2 18:47 将来会开源,目前自己都还没搞懂,就不拿出丢人了 关于FM解调: 用stm32内置adc采的
射频
?
有谁知道频率可调三路120°相位差方波信号发生电路?
ehco
8年7个月前
回复于
电子技术
内容:到了
射频
果断上DDS吧AD9954之类 用逻辑门够呛 而且你确定要
射频
的方波?
无线电波可视化的可行性!
分立元件
5年5个月前
回复于
电子技术
内容:
射频
电路最难学了,制作难度更大
征集450MHZ信标机方案
youngeramanda
11年2个月前
回复于
无线电
内容:s.d.p 发表于 2013-11-19 13:41 200兆瓦
射频
输出是否需要采用十台100MW的压水反应堆提供电力?
射频卡人工线圈置换术一例
爬行动物
12年11个月前
回复于
电子技术
内容:额,硬盘好像比
射频
卡贵吧[s:274]
10MHz, 240瓦射频 袖珍型 (Class E ,OLTC ?)特斯拉线圈实验
飞天狂想
14年3个月前
回复于
高电压技术
内容:RF是
射频
`不是RP人品`
怎么高效取出磁卡里的线圈以及芯片啊
cccyl
8年10个月前
回复于
极客DIY
内容:磁卡没芯片,你说的是
射频
卡吧?
简单拆解罗德施瓦茨xk2900L短波发射机的接收和激励部分
虎哥
4年7个月前
回复于
拆机鉴赏
内容:
射频
进来应该是有防雷电路,限幅器,可旁路前放,低通滤波器。
手机信号屏避那玩意是啥原理 能DIY不?
绘梦工坊
13年11个月前
回复于
电子技术
内容:辐射恒大 白噪声发生器加
射频
功放
大幅降价出一批重器!!!
改装pcp
8年3个月前
回复于
跳蚤市场
内容:50兆
射频
功放发射板,130元。
示波器莫名其妙的噪声求解释
1176764177
9年10个月前
回复于
仪器仪表
内容:我是可爱的蓝孩纸不是
射频
干扰就是那个狗屁电源搞得鬼
使用ADI的RF DAC制作高端无线军用干扰机
1176764177
3年9个月前
回复于
无线电
内容:假设你又10W
射频
功率,你给散刀0.1-18GHz,和集中在比如2.45Ghz ,100M带宽功率谱密度能一样么?
[重来] 5.8GHz 测距雷达
GiroPetrenko
4年9个月前
回复于
无线电
内容:
射频
部分(功分器)说不定可以剽一张rogers板材自己蚀刻。
出安捷伦4.2g高端信号源8665a
苦丁茶
4年11个月前
发表于
跳蚤市场
内容:这台是惠普安捷伦交接时代除了8665b以外最好的模拟
射频
信号源了。
求助:简易的大功率射频发射器的制作
0x00000000
11年0个月前
回复于
电子技术
内容:不过这类电路本质实际就是一个大功率
射频
振荡器,所以原则上任何电路只要能输出够大的
射频
功率,也应该能起到类似效果。
讨论下RF宽带双工/反向保护的问题
立棍
13年0个月前
回复于
电子技术
内容:用一种方法肯定力所不及吧 使用大功率
射频
管做缓冲,再加上点保护二极管之类,这样可能比芯片直接连接更有耐受性。,可以做一个附件衰减盒,用电阻,
射频
电位器等等。
求一个晶振电路,做SSTC
布布卡
14年6个月前
回复于
高电压技术
内容:
射频
好啊 。。
讲个笑话:今天在楼下餐馆买了一台3D打印机
雪馒头
10个月19天前
回复于
机械与工具
内容:虎哥,科创的开放实验室的帖子链接发一下,我要带设备去实验室做测试,我是做
射频
的
kc入手好长时间了,今天DIY个滤波器
刘海石
11年5个月前
发表于
无线电
内容:现在工作了开始搞搞
射频
,说句实话,
射频
这东西吧,多数时候还是凭的是经验,哎,,,,,自叹不如啊。。。
真空技术:如何使用RGA搭建气体分析系统
AtomictekOWO
2年7个月前
发表于
核技术与核仪器
极客DIY
动手实践: 实验报导,严肃内容: 教程/课程
内容:四极杆质量分析器利用正交
射频
电场来约束离子,将四根金属杆两两相接并通带有直流偏压的
射频
电场,两组金属杆上的
射频
电场相位差为180°且直流偏压极性相反。,对于四极场电位可以由以下方程进行描述:Vx/y=±(U+V0cosωt)(其中U为四极杆上的直流偏压,V0为所加
射频
电场的电压幅值) 将四极杆放置于坐标系内,两组杆中心点分别位于X、Y轴上时我们假设,X轴上的杆直流偏置电压为正;在某一时刻
射频
电流幅值为负,且绝对值大于直流偏压时这一对杆带负电,对离子有散焦作用。,对于离子在四极场中的运动轨迹我们可以如下进行表述: (其中u为x或y坐标)这就是Mathieu方程,对此方程求解我们可以得到Mathieu方程解的稳定范围(如下图所示)通常情况下选取方程的第一稳定区对四极场进行设计,
射频
场频率越高则离子脱离四极杆的可能性就越大,调节直流偏压电位或
射频
电压幅值来构建不同的谐振质量就可实现质量扫描。
今天是2012 CQ WPX SSB通信竞赛
古人
12年10个月前
回复于
无线电
内容:为了帮助各位HAM早日实现大功率梦想,现在献上ARRL原版资料:《ARRL经典
射频
功放》。
【译】GDT波形详解~
子弹弹
11年10个月前
回复于
高电压技术
内容: 频率高需要用
射频
mosfet
nanoVNA矢量网络分析仪的原理浅析
量子隧道
1年10个月前
回复于
仪器仪表
内容:CPU的主频如果和
射频
同步,那么二次数字混频会极为简化。
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