A power and efficiency measurement technique for active patchantennas |
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| Authors: | Elkhazmi E.A. McEwan N.J. Ali N.T. |
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| Affiliation: | Dept. of Electr. & Electron. Eng., Bradford Univ.; |
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| Abstract: | In this paper, the power input to the radiating element of an active microstrip patch antenna is measured using a small sensing patch, which is weakly coupled to a radiating edge. Combined with an estimate of patch radiation efficiency, this also yields a measurement of total radiated power. The method has advantages of convenience, insensitivity to room reflections, and a weakly frequency-dependent calibration factor |
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