ORBIT FR Magnetic dipoles - Manual

18
Magnetic Dipoles
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➊ TECHNICAL PERFORMANCE
• Low loss and high effi ciency
• Azimuth pattern symmetry is within ± 0.1 dB
variation as specifi ed by the CTIA for ripple
testing according to the OTA Test Plan
➋ DESIGN
• Innovative low loss structure with a protective
external radome
• Excellent rotation symmetrical structure
minimizing cross polarization level
• The radiating structure is orthogonal to the feeding
line, minimizing cable and feed point interaction
• The radiating structure is entirely metallic without
the use of external discrete components
• Innovative choke design further reduces cable
interaction by attenuating the natural return
currents from the magnetic dipole
➌ REPEATABILITY
• Stiff and robust mechanical design
• Precision machined
• High reliability connector
REFERENCE ANTENNAS
The magnetic dipole or magnetic
loop antenna is complementary
to the electrical dipole, with a
similar radiation pattern but in
orthogonal polarization.
Typical 3D radiation pattern
> Main use:
• Gain reference
• Effi ciency reference
• Chamber refl ectivity evaluation: directivity,
cross polarization and radiation pattern
> Delivered documents:
• Typical performance data (TYMEDA TM )
• Measured return loss data
> Surface treatment:
• Alodine 1200 according to MIL-C 5541E class 3
• Blue paint
> Related certifi cation:
• CTIA low gain antenna measurement
> Related services:
• Calibration and maintenance
• Customization
REFERENCE ANTENNAS