Abstract
In this paper, application of a modified Wheeler cap
method for the radiation efficiency measurement of
balanced electrically small antennas is presented. It is
shown that the limitations on the cavity dimension can
be overcome and thus measurement in a large cavity is
possible. The cavity loss is investigated, and a modified
radiation efficiency formula that includes the
cavity loss is introduced. Moreover, a modification of
the technique is proposed that involves the antenna
working complex environment inside the Wheeler Cap
and thus makes possible measurement of an antenna
close to a hand or head phantom. The measurement
procedures are described and the key features of the
technique are discussed. The results of simulations
and measurements by the proposed method are presented
and compared.
Original language | English |
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Title of host publication | Proceedings of AMTA 2010 |
Publication date | 2010 |
Publication status | Published - 2010 |
Event | 32. Annual Meeting & Symposium of Antenna Measurement Techniques Association - Duration: 1 Jan 2010 → … Conference number: 32 |
Conference
Conference | 32. Annual Meeting & Symposium of Antenna Measurement Techniques Association |
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Number | 32 |
Period | 01/01/2010 → … |
Keywords
- Wheeler Cap Method
- Radiation Efficiency Measurement
- Balanced Antennas
- Antenna-on-Body Measurements
- Electrically Small Antennas