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Electrically small antennas for wireless communications applications are prone to excite common mode currents on cables connected to them for measuring their performance. A miniature RF-optical transducer enables an optical fibre connection to the antenna, thereby eliminating the large distortion associated with the unwanted radiation from a coaxial cable. This opto-electric field sensor system operates...
Present and emerging wireless communications technologies present measurement and calibration problems that are not adequately catered for by existing facilities. Our aim in this research work is to construct, test and report a new antenna facility for minimally invasive measurements of electrically small antennas. This facility will allow antenna designers and system users to be able to evaluate...
The antenna-to-range interface can have a large effect when measuring the radiation performance of electrically small antennas for wireless communications. Small antennas, with their almost omni-directional patterns, need to be tested in very low reflection environments. However, the connection of the antenna to the RF measurement subsystem, particularly where cables, or other conducting interfaces,...
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