ORBIT FR Dual polarized probes User Manual

Dual polarized probes, Measur ement antennas

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47

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Measur

ement antennas

Dual Polarized Probes

>

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Main use:

•

Spherical and planar near-fi eld measurement probes

•

Measurement probes for far-fi eld systems

>

Delivered documents:

•

Typical performance data (TYMEDA

TM

)

•

Return loss data and port-to-port coupling

>

Surface treatment:

•

Alodine 1200 according to MIL-C 5541 E class 3

•

Blue paint

>

Optional equipment:

•

Custom mechanical interface

•

Absorder plates

>

Related services:

•

Calibration, maintenance, customization

➊

TECHNICAL PERFORMANCE

•

Pattern shape

•

On-axis polarization purity

•

Off-axis polarization purity

•

Low return loss / VSWR

•

Port-to-port isolation

➋

DESIGN

•

Consists of an orthomode junction (OMJ) feeding

a circular, open-ended or corrugated aperture

•

OMJ based on a quad-ridge circular waveguide

with external feeding circuits

•

OMJ feeds directly into a circular waveguide

providing wideband performance

•

Electrical symmetry for mono-mode excitation

enforced by balanced feeding on a 1:3
bandwidth

➌

REPEATABILITY

•

Stiff and robust mechanical design

•

Precision machined

•

High reliability connectors

•

High reliability of external components

MEASUREMENT PROBES

Typical 3D pattern

SP 2600

MEASUREMENT PROBES

SP 800

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