Manual

Dual Polarization Feed Antennas

> Main use:

• Illumination of anechoic chambers

• Compact Range feed

• Outdoor antenna and RCS measurements

• Near-ﬁ eld probe

• Material measurements

> Delivered documents:

• Measured VSWR data

• Port-to-port isolation data

> Optional equipment:

• Mounting bracket

> Related services:

• Measured antenna pattern data, measured gain

• Maintenance and customization to speciﬁ c range

geometries

➊ TECHNICAL PERFORMANCE

• Nearly circularly symmetric beam

• 40 dB minimum isolation between ports

• 10:1 bandwidth

• Nominally constant gain and beamwidth

➋ DESIGN

• Compact size for a low frequency antenna

MEASUREMENT PROBES

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MEASUREMENT PROBES > Dual Polarization Feed Antennas ➊ TECHNICAL PERFORMANCE MEASUREMENT PROBES > Main use: • Illumination of anechoic chambers • Compact Range feed • Outdoor antenna and RCS measurements • Near-ﬁeld probe • Material measurements > Delivered documents: • Measured VSWR data • Port-to-port isolation data > Optional equipment: • Mounting bracket > Related services: • Measured antenna pattern data, measured gain • Maintenance and customization to speciﬁc range geometries 60 • Nearly circ
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Electrical characteristics Mechanical characteristics Part number AL-2309-LF Part number AL-2309-LF Frequency range 200 MHz – 2000 MHz Length (in) 13.3 Bandwidth ratio 10:1 Aperture size (in) 28.2 diameter Gain (nominal) 1.7 to 4.3 dBi Aperture (sq feet) 4.3 VSWR < 3:1 (< 2:1 typical) Length with bracket (in) 26 Circular mounting pattern 8 holes 8.3 mm 3 dB Beamwidth E plane < 120 degrees (0.2-0.4 GHz) Mounting plate size on 290 mm diameter 3 dB Beamwidth H plane 70 to 75 degrees (0.