Araghi, A;
Lok, LB;
(2023)
Systematic Design and Simulation of a Miniaturized Conical Log-Spiral Antenna.
In:
IEEE International Symposium on Electromagnetic Compatibility.
IEEE: İstanbul, Turkiye.
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Abstract
This paper presents a systematic method to design an electrically-small conical log-spiral antenna (CSA). The design is based on a thin flexible printed dielectric substrate to form the cone surface, and then a resistor is added between the spiral arms at the larger diameter end of the antenna. To demonstrate the proposed approach, a 2-arm CSA is designed and simulated. The minimum operating frequency of the CSA is reduced from 1.02 GHz to 0.8 GHz. A microstrip balun is designed to differentially excite the CSA. The final antenna has a fractional impedance bandwidth of 121% (0.8-3.27GHz) with return loss better than 10 dB. The axial ratio of the antenna is also assessed to show its circularly polarized performance within the operating bandwidth.
| Type: | Proceedings paper |
|---|---|
| Title: | Systematic Design and Simulation of a Miniaturized Conical Log-Spiral Antenna |
| Event: | 2023 7th International Electromagnetic Compatibility Conference (EMC Turkiye) |
| Dates: | 17 Sep 2023 - 20 Sep 2023 |
| ISBN-13: | 9798350342130 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/EMCTurkiye59424.2023.10287484 |
| Publisher version: | http://dx.doi.org/10.1109/emcturkiye59424.2023.102... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Conical log-spiral antenna, balun, circular polarization |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10183805 |
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