Time domain analysis of direct-feed biconical antenna for antenna calibration and EMC measurement
The direct-feed biconical antenna where no balanced to unbalanced network (BALUN) is needed has been used in Antenna calibration and Electromagnetic Compatibility (EMC). It has optimized dimensions using mathematical method to match 50 Ω systems between 200 MHz and 2 GHz. Antenna Factor has been det...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Published: |
2016
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| Subjects: | |
| Online Access: | DOI:10.1109/APACE.2016.7915885 DOI:10.1109/APACE.2016.7915885 |
| Summary: | The direct-feed biconical antenna where no
balanced to unbalanced network (BALUN) is needed has been
used in Antenna calibration and Electromagnetic Compatibility
(EMC). It has optimized dimensions using mathematical method
to match 50 Ω systems between 200 MHz and 2 GHz. Antenna
Factor has been determined for proposed direct feed biconical
antenna. However, the analytical results have deviation up to 5dB
at 300 MHz compared with simulation and measurement results.
This is predicted due to the gap between two cones in simulation
and measurement. In analytical, assumption has been made that
the gap between two cones is ignored. Therefore, time domain
analysis using a time gating method has been used to analyse the
effect between two cones. The results shows that the gap between
two cones and the connector that been used in both simulation and
measurement that was not taken into consideration in the AF
evaluation in the analytical method could affect the input
impedance and eventually give high uncertainty to the AF
especially at low frequency. |
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