|
|
LHC RF signals manipulations |
|
|
|
|
|
|
|
|
|
|
|
|
| Name of the device |
Status |
Layout |
|
| -10dB
directional coupler |
small layout
problems to solve |
|
|
| -20dB directional coupler |
design
done, waiting for microwave substrate |
|
|
| -30dB directional coupler |
design
done, waiting for microwave substrate |
|
|
| 2 way splitter |
design
done, waiting for microwave substrate |
|
|
| 4 way splitter |
design
done, waiting for microwave substrate |
|
|
|
|
LHC RF signals manipulations |
|
|
| Name of the device |
Status |
Layout |
|
| 8 way
splitter |
design done,
waiting for microwave substrate |
|
|
| variable attenuator |
looking
for cheap circulator, otherwise this design has no sense. This setup is able
to handle high RF power |
|
|
|
|
LHC RF signals manipulations |
|
|
| Name of the device |
Status |
Layout |
|
| variable
delay |
design done,
first prototype is operational, mechanical layout is beeing optimized. Measured delay min: 6ns, max: 11ns |
|
|
| filter for the HOM power meter |
design
done, waiting for microwave substrate |
|
|
|
|
|
|
|
LHC klystron electronics |
|
|
| Name of the device |
Status |
Description |
|
| RF power meter |
Devices of the first
series are already operational in 112 test stand |
Wideband RF power meter with 2
independent interlock channels. |
|
| - Response time <1ms |
|
| - Very wide bandwidth (up to 1-2GHz) - can be used also for
HOM power measurements |
|
| - Dynamic range (~50dB) |
|
| - Replacement of the RF watcher |
|
| Klystron DCCT interface card |
Prototype
chassis ready for tests |
Processing
signals from two DC current transformers to obtain value of a modulation
anode current, a cathode current and true r.m.s. value of a heater current |
|
| DCCT calibration card |
Prototype
chassis ready for tests |
Card
equipped by microcontroler, generating calibration currents of defined
amplitude and waveform. Remote controlable for comfortable in-system
operation checks |
|
| Optical isolators |
Prototype
ready for tests |
Provides
transmission of an analog signals over the optical fibre. Will be used for
safe measurements on systems galvanically connected with the HV system by PLC
(e.g. cathode voltage, modulation anode voltage…) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
