| |
 |
Agilent 911E Sliding Load
The coaxial sliding load and mismatch are movable, low reflection loads
used to make precision microwave measurements. By moving the load, its
reflection can be separated from the other reflections in the system. This
technique allows you to measure the directivity of coaxial directional
couplers and the residual standing wave ratio (SWR) of coaxial slotted lines.
The sliding mismatch is mechanically similar to the sliding load except that
its reflection is somewhat higher so that a known mismatch can be
introduced into a system for calibration. The reflection is between 23 dB and
28 dB over the frequency range from 3 to 26.5 GHz.
The sliding load contains a hollow cylindrical iron-bearing plastic load
element that surrounds the center conductor. The gradual tapering of the load
element enables it to absorb the applied RF energy.
The load element can be moved within the instrument body at least one-half
of a wavelength at the lowest rated frequency (3 GHz). Some applications
may require that the load element be moved in precise steps. There are 6
marks scribed along the body of the load. Use these marks for optimum
calibration of the vector network analyzer.
Features:
- Highly stable
- Utilizes integral connectors to form a near perfect airline
Specifications:
| Connector type |
APC 3.5 |
| Connector sex |
Female |
| Frequency range |
3 to 26.5 GHz (usable to 33
GHz) |
| Load stability (plus connector
and air line) |
| 3 to 20 GHz |
<0.004 |
| 20 to 26.5 GHz |
<0.004 |
| Power Rating |
| Average |
1 W |
| Peak |
1 kW |
| Load element travel |
Half of a wavelength at 3.0 GHz (5 cm minimum) |
| Dimensions |
| Length |
25.6 cm (10.1 in) |
| Weight |
120 g (4.25 oz) |
| Parameter |
Equipment Operation |
Equipment Storage and Shipping |
| Temperature |
+15 °C to +35 °C (or network
analyzer operating temperature
range, whichever is less) |
-40 °C to +70 °C |
| Relative Humidity |
<80% relative humidity at 40 °C |
<90% relative humidity at 40 °C |
| Altitude |
<4,570 m (15,000 ft) |
<15,300 m (50,000 ft) |
|
