The Model 3148B Log Periodic Dipole Array Antenna is specifically designed for making CISPR 16-1 measurements which require a 20 dB difference in the cross polarization rejection. This is achieved using an engineering design and manufacturing process that offsets all of the elements in a precision pattern. The excellent cross-polarization property ensures minimum measurement uncertainty for radiated emissions and normalized site attenuation measurement.
The precision construction of the assembly of the boom and elements result in excellent VSWR and optimal phase relationship.
The Model 3148B antenna features relatively constant linear gain (measures in far field without any sudden ?dips? or ?bumps?).
A Type N connector is provided.
Frequency RangeThe frequency range of the Model 3148B is 200 MHz to 2 GHz. This makes the Model 3148B ideal for CISPR 16 testing and other standards based on it, such as CISPR 25.
High GainThe Model 3148B?s design provides a balance between the shortest antenna and the highest possible gain, with a 5 dB average gain over its frequency.
Low VSWRThe choice of spacing between booms and the changing element diameter provide excellent impedance of the antenna. This results in a in low VSWR.
Individually CalibratedThe Model 3148B is individually calibrated at 1 m per SAE ARP 958 and 3 m and 10 m per ANSI C63.5. This antenna also comes with a signed Certificate of Calibration Conformance.
Flexible Mounting SystemThe Model 3148D antenna includes both an EMCO classic mount and a rear "stinger" mount.
- Individually Calibrated at 1 m per SAE ARP 958 Actual antenna factors and a signed Certificate of Calibration Conformance provided.
- Custom cases are available on request.
- Support Rod Antenna mount with insert drilled to accept ETS-Lindgren or other tripod with standard 1/4 in x 20 threads.
- ETS-Lindgren Tripod. Several nonmetallic, non-reflective tripods for use at EMC test sites.
|Frequency Minimum||200 MHz |
|Frequency Maximum||2 GHz |
|Connectors||Type N (f) |
|Impedance (Nominal)||50 Ω |
|Maximum Continuous Power||1 kW |
|Pattern Type||directional |
|Peak Power||1.3 kW |
|Depth||86.7 cm (34.13 inches) |
|Height||11.6 cm (4.57 inches) |
|Length||73.7 cm (29.02 inches) |
|Weight||2 kg ( 4.41 lb ) |
|Width||85.6 cm (33.70 inches) |
|Expanded Uncertainty Values for Antenna Factors: ANSI C63.5 10M||1-2 GHz+/- 1.0 dB |
200-1000 MHz +- 0.8 dB
|Expanded Uncertainty Values for Antenna Factors: ANSI C63.5 3M||1-2 GHz+/- 1.0 dB |
200-1000 MHz +- 0.9 dB
|Expanded Uncertainty Values for Antenna Factors: SAE, ARP 958 1M||1-2 GHz+- 1.4 dB |
200-1000 MHz +- 0.6 dB