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A differential active patch antenna element for array applications

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3 Author(s)
Brauner, T. ; Lab. for Electromagn. Fields & Microwave Electron., ETH Zurich, Switzerland ; Vogt, R. ; Bachtold, W.

This letter describes the implementation of an active receiving antenna at 5-6 GHz. An aperture-coupled patch antenna is designed to provide a differential interface toward monolithically integrated circuits. The integration with a low-noise amplifier is shown. The proposed structure offers new advantages for the construction of compact and robust adaptive antenna arrays. Measurements show around 5.5 dBi antenna gain with a cross-polarization below -27 dB. The differential low-noise amplifier provides more than 10 dB gain improvement.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:13 ,  Issue: 4 )