A power and efficiency measurement technique for active patch antennas

Authors
Elkhazmi, EA McEwan, NJ Ali, NT
Citation
Ea. Elkhazmi et al., A power and efficiency measurement technique for active patch antennas, IEEE MICR T, 48(5), 2000, pp. 868-870
Citations number
8
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN journal
00189480 → ACNP
Volume
48
Issue
5
Year of publication
2000
Pages
868 - 870
Database
ISI
SICI code
0018-9480(200005)48:5<868:APAEMT>2.0.ZU;2-X
Abstract
In this paper, the power input to the radiating element of an active micros trip 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 met hod has advantages of convenience, insensitivity to room reflections, and a weakly frequency-dependent calibration factor.