详细说明
主要特点
该系统是?/span>SD3200R/T收发系统?/span>SD3200H微波电路测试模块箱组?/span>
SD3200R/T收发系统?/span>SD3200T发射系统?/span>SD3200R接收系统组成,具有六个载频(900MHz?/span>892MHz?/span>884MHz?/span>876MHz?/span>868MHz?/span>860MHz),频率间隔?/span>8MHz
收发系统均以模块形式,便于组合,并具有检测点
本振源采用高稳定度锁相振荡器,使产生的图像、语音清晰稳?/span>
SD3200MW微波电路测试模块箱是?/span>14种实用的微波电路模块及器件组成,可进行单元电路及器件测试,还可组?/span>830MHz微波收发系统和微型直放站,开展无线微波通信传输试验
可提供微波电路、元器件、结构件和电路板等,用于开展微波电路及微波通信系统的课程设计和毕业设计
主要技术指?/span>
SD3200收发系统的传输特?/span> |
有效?/span> |
每一信道?/span>8MHz,总共6个信道,其传输频带为40MHz |
可靠?/span> |
分别工作?/span>CH1?/span>CH2?/span>CH3?/span>CH4?/span>CH5?/span>CH6载频信道上,?/span> 测显示器显示图象和话音的质量 传输距离范围?/span>3m?/span>6m |
|
SD3200T发射系统 |
输出功率 |
?5dBm |
1dB压缩点功?/span> |
?7dBm |
|
输出载频 |
900MHz?/span>892MHz?/span>884MHz?/span>876MHz?/span>868MHz?/span>860MHz |
|
载波抑制 |
?40dBm(对960MHz本振频率的抑制) |
|
底部噪声 |
?/span>?/span>50dBm |
|
调制特?/span> |
已调(调幅)的载频的调幅电平大于30dB |
|
SD3200R接收系统 |
接收灵敏?/span> |
?/span>?/span>40dBm |
选择?/span> |
8MHz |
|
接收动态范?/span> |
?0dB |
|
SD3200模块 (可任意选配?/span> |
可变增益放大?/span> 介质滤波器放大器?/span>830MHz/912MHz/957MHz)上变频?/span> 下变频器 锁相振荡?/span> 中频滤波器放大器 介质双工?/span> 微带型二功分?/span> 腔体耦合?/span> 同轴负载 同轴衰减?/span> |
射频/微波电路模块的主要特?
1、可变增益放大器?/span>800 ~ 1000MHz?/span>
频率范围?/span>800 ~ 1000MHz
增益?/span>?5dB(衰减小时的增益?/span>
增益可调范围?/span>31dB
带内波动?/span>≤?dB
三阶交调?/span>?/span>?/span>50dBc
输入驻波比:?.5:1
2、介质滤波放大器?/span>909 ~ 915MHz?/span>
中心频率?/span>912MHz
带宽?/span>6MHz
增益?/span>?0dB
输入、输出驻波比?/span>?.5:1
3、介质滤波放大器?/span>954 ~ 960MHz?/span>
中心频率?/span>957MHz
带宽?/span>6MHz
增益?/span>?0dB
输入、输出驻波比?/span>?.5:1
4、介质滤波放大器?/span>825 ~ 835MHz?/span>
中心频率?/span>830MHz
带宽?/span>10MHz
增益?/span>?0dB
输入、输出驻波比?/span>?.5:1
5、上变频器(U/C?/span>70?30MHz?/span>
射频频率fRF和电?/span>PRF?/span>70MHz?/span>?/span>?/span>10dBm
本振频率fL和电?/span>PL?/span>760MHz?/span>?/span>?/span>7dBm
混频器输出频?/span>f0?/span>830MHz
变频损耗:L?dB
隔离度:I?0dB
6、下变频器(D/C?/span>830?0MHz?/span>
射频频率fRF和电?/span>PRF?/span>830MHz?/span>?10dBm
本振频率fL和电?/span>PL?/span>760MHz?/span>?7dBm
混频器输出频?/span>f0?/span>70MHz
变频损?/span>L?/span>?dB
隔离?/span>I?/span>?0dB
7、锁相振荡器?/span>760MHz?/span>
输出频率?/span>760MHz
输出电平?/span>?7dBm
谐波?/span>?30dB
杂散?/span>?30dB
频率稳定度:?×10-6
8、中频滤波放大器?/span>70±8 MHz?/span>
中心频率?/span>70 MHz
带宽?/span>±8 MHz
增益?/span>?0 dB
输入输出放大线性范围:0 ~ 10 mVp-p
9、介质双工器?/span>GSM?/span>912/957MHz?/span>
中心频率?/span>Tx?12MHz?/span>Rx?57MHz
插损?/span>?.5dB
通带宽度?/span>±3.0MHz
通带波动?/span>?.0dB
驻波比:?.0:1
阻带衰耗:?5dB?/span>at 954?/span>960 MHz?/span>
?5dB?/span>at 909?/span>915 MHz?/span>
输入输出阻抗?/span>50Ω
10、微带型二功分器?/span>800 ~ 2500MHz?/span>
频率范围?/span>800 ~ 2500MHz
分配比:3dB
插损?/span>?.25dB
耦合度波动范围:10±0.8 dB
回波损耗:?/span>20dB
隔离度:?/span>20dB
阻抗?/span>50Ω
连接方式?/span>N-F?/span>
11、腔体耦合器(10dB?/span>800 ~ 2500MHz?/span>
频率范围?/span>800MHz-- 2500MHz
耦合度:10dB
分配损耗:0.454 dB
耦合度波动范围:10±0.8 dB
回波损?/span>?0 dB
插损L?.15dB
隔离?/span>?0dB
阻抗?/span>50Ω
12、微带耦合器(10dB?/span>800 ~ 2500MHz?/span>
频率范围?/span>800MHz?500MHz
耦合度:10dB
分配损耗:0.454 dB
耦合度波动范围:10±0.8 dB
回波损?/span>?0 dB
插损L?.25dB
隔离?/span>?0dB
阻抗?/span>50Ω
13、同轴负载(DC ~ 2500MHz?/span>
频率范围?/span>DC-3GHz
端口阻抗?/span>50Ω
驻波比:?.2:1
14、同轴衰减器?/span>DC ~ 2500MHz?/span>
频率范围f0?/span>DC-- 3000MHz
衰减量: 10dB
驻波比:?.2:1
衰减精度△A?.5dB
端口阻抗?/span>50Ω