发明名称 |
Process control instrument intrinsic safety barrier |
摘要 |
A process control instrument includes a circuit board having a control circuit for generating or receiving a high frequency signal. An antenna includes an electrical conductor. An intrinsic safety circuit couples the control circuit to the antenna and comprises a microstrip transmission line on the circuit board electrically connecting the control circuit to the electrical conductor. A safety stub has a first end electrically connected to the transmission line proximate the electrical conductor and a second end connected to a ground of the control circuit.
|
申请公布号 |
US2004066588(A1) |
申请公布日期 |
2004.04.08 |
申请号 |
US20030675666 |
申请日期 |
2003.09.30 |
申请人 |
MAGNETROL INTERNATIONAL |
发明人 |
FLASZA MICHAEL D.;BLESZYNSKI STANISLAW |
分类号 |
H01Q1/38;H01Q23/00;(IPC1-7):H02H3/00 |
主分类号 |
H01Q1/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|