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Apparatus and method for an active antenna system with near-field radio frequency probes

  • US 9,130,271 B2
  • Filed: 02/22/2013
  • Issued: 09/08/2015
  • Est. Priority Date: 02/24/2012
  • Status: Active Grant
First Claim
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1. An active antenna device comprising:

  • a path;

    a radiating element that radiates a wireless signal; and

    a near-field radio frequency (RF) probe positioned adjacent to the radiating element such that the near-field RF probe does not obstruct a main lobe of the wireless signal radiated from the radiating element, the near-field RF probe configured to wirelessly communicate a calibration signal with the radiating element during field operation of the active antenna device, wherein the calibration signal is processed to calibrate a phase or gain parameter of the path, and wherein a distance between the near-field RF probe and the radiating element is less than one wavelength of the wireless signal radiated from the radiating element.

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