Antenna & RCS measurement lab.

INTA has more than 50 years of experience in performing antenna and radar signature testing for civilian, aeronautical, military and space projects.

Among others, INTA RF Area has the capability to perform the following tests:

  • Measurements of the characteristic parameters of the antennas: radiation patterns, gain, directivity, standing wave ratio, etc.
  • Measurement of high and low gain antennas, individually or installed in large structures, as well as the validation of the radioelectric behavior of antennas .mounted in real-size or scale models.
  • Measurement of the dispersion parameters of passive and active microwave devices.
  • Calibration of Antenna Factor.
  • E.I.R.P (Effective Isotropic Radiated Power) Measurement.
  • Measurement of the effect of radomes and coatings in radiation or scattering diagrams.
  • Radar Cross Section Measurement (RCS) of targets, measurement of electromagnetic absorption of materials, ISAR imaging of targets.

Main facilities:


  • Single reflector test range for antenna, payload and RCS measurements
  • Installed inside a 30x18x13 m (LxW+H) shielded anechoic chamber
  • Frequency range: 1.5 to 40 GHz

Antenna testing:

  • Quiet zone: 5.5 x 5 x 6 m (w x h x l)
  • Maximum weight: 2000 Kg
  • Maximum bending moment: 4000 Kg.m
  • Antenna under test transmitting or receiving

RCS testing:

  • Quiet zone: 5.5 x 5 x 6 m (w x h x l)
  • Sensitivity: < - 45 dBsm
  • Target weight: 4500 Kg
  • Full polarimetric
  • ISAR capability


- Antenna under test (A.U.T) installed on an outdoors positioner
- Frequency range: 80 MHz – 6 GHz
- Distance between Tx and Rx antennas: 61, 117.5 or 347m
- Operational mode: A.U.T. transmitting
- Configuration: ground reflection range
- Instrumentation: System based on the HP 8530 receiver

Typical measurements:
Radiation patterns of low gain antennas
Measurement of antennas mounted on scaled models

Type: Service
Specimen length [mm]: 6000.0
Specimen width/dia [mm]: 5500.0
Specimen height/thk [mm]: 5000.0
Mass max. [kg]: 2000.0
Project heritage: METEOR
Keywords: Antenna measurement, radar signature, RCS, compact range, open field range