参数资料
型号: RXM-418-LR_
厂商: Linx Technologies Inc
文件页数: 31/40页
文件大小: 0K
描述: RECEIVER 418MHZ LR SERIES
标准包装: 25
系列: LR
频率: 418MHz
灵敏度: -112dBm
数据传输率 - 最大: 10 kbps
调制或协议: ASK,OOK
应用: ISM,车库门开启器,RKE
电流 - 接收: 5mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
特点: 远程
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 70°C
封装/外壳: 16-SMD 模块
包装: 管件
其它名称: RXM-418-LR
RXM-418-LR-S
Antenna Sharing
In cases where a transmitter and
receiver module are combined
to form a transceiver, it is often
advantageous to share a single
antenna. To accomplish this, an
antenna switch must be used to
provide isolation between
the modules so that the full
transmitter output power is not
put on the sensitive front end of
Figure 27: Linx Antennas
the receiver. There are a wide variety of antenna switches that are
cost-effective and easy to use. Among the most popular are switches
from Macom and NEC. Look for an antenna switch that has high isolation
and low loss at the desired frequency of operation. Generally, the Tx or
Rx status of a switch will be controlled by a product’s microprocessor, but
the user may also make the selection manually. In some cases, where the
characteristics of the Tx and Rx antennas need to be different or antenna
switch losses are unacceptable, it may be more appropriate to utilize two
discrete antennas.
– 27 –
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