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CATR Measurement System using Reflector

CATR Measurement System using Reflector

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CATR（Compact Antenna Test Range）

  • ・Using reflectors to collimate the plane wave, 　　 the measurement distance required for general DFF (Direct Far Field) is reduced for large aperture antennas.
  • ・The surface roughness Ra of the metal curved surface is 50nm, and high plane wave characteristics are realized

Specification

Specification
Frequency ※1 18 to 300GHz
Feeder Antenna Corrugated feed Horn Antennas
Reflector 600mm x 600mm
(Option: 1200mm x 1200mm)
Quiet Zone (QZ) ±150mm
(1200mm x 1200mm Model： ±300mm)
Measurement Distance 1000mm
(from the center of the reflector)
QZ Quality Phase ±8.0deg.
Amplitude ±1.0dB
Size ※2 W x D x H = 1800 x 1200 x 1800mm
  • ※1 The frequency range depends on the feeder antenna
  • ※2 Protrusions excluded. Size can be customized upon request

QZ Measurement Results (30GHz)

  • ・The Pk-Pk value of the amplitude phase is measured as QZ Quality within a range of 1/2 of the aperture surface of the reflector (= ±150mm) ※3
Ripple（Typ.）
QZ Quality Amplitude Phase
28GHz ±0.86dB ±7.54deg.
29GHz ±0.75dB ±7.24deg.
30GHz ±0.81dB ±6.10deg.

Amplitude Characteristics

Phase Characteristics

  • ※3 Please contact us for information on other frequency

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