University of Oulu

Z. Siddiqui, M. Sonkki, M. Tuhkala and S. Myllymäki, "Periodically Slotted Coupled Mode Leaky Coaxial Cable With Enhanced Radiation Performance," in IEEE Transactions on Antennas and Propagation, vol. 68, no. 11, pp. 7595-7600, Nov. 2020, doi: 10.1109/TAP.2020.2990478

Periodically slotted coupled mode leaky coaxial cable with enhanced radiation performance

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Author: Siddiqui, Zeeshan1; Sonkki, Marko1; Tuhkala, Marko2;
Organizations: 1Centre for Wireless Communications (CWC), University of Oulu, Oulu FI-90014, Finland
2Microelectronics Research Unit, University of Oulu, Oulu FI-90014, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 1.9 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2021-01-05


A novel technique to periodically modulate the aperture of a coupled mode leaky coaxial cable (LCX) is presented in this communication. The surface wave (monofilar mode) over the cable is modulated by periodically slotted aperture, converting it to a leaky wave. This leaky wave due to periodic modulation complements the leaked bifilar mode, thus enhancing the radiation efficiency of the LCX. The numerical results obtained through CST simulation are presented to prove the coexistence of a complex surface wave and a leaky wave over the surface of periodically modulated cable. As a proof of concept, a periodically slotted LCX operating at 4.5 GHz is designed and fabricated. Parametric studies are performed to observe the influence of the key parameters on the radiation performance. The measured results reasonably agree with the simulations.

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Series: IEEE transactions on antennas and propagation
ISSN: 0018-926X
ISSN-E: 1558-2221
ISSN-L: 0018-926X
Volume: 68
Issue: 11
Pages: 7595 - 7600
DOI: 10.1109/TAP.2020.2990478
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported in part by the Finnish Funding Agency for Technology and Innovation (Tekes) and its industrial partners Prysmian Group, Elcoflex and Premix under Smart Wireless Cable project, and in part by the Academy of Finland 6Genesis Flagship (grant no. 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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