Microwave characterization of cork as a sustainable substrate for antenna and sensor applications

Amir Zahedi; Robert Salama; Karthick Thiyagarajan; Ranjith Liyanapathirana

doi:10.1109/ASA69049.2026.11466986

Microwave characterization of cork as a sustainable substrate for antenna and sensor applications

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

Abstract

In this paper, cork material is investigated as a sustainable substrate for antenna and sensor applications. The dielectric properties of cork, including dielectric constant, dielectric loss factor and loss tangent (tanδ), are measured using the Agilent 85070E Dielectric Probe Kit over the frequency range of 250 MHz to 20 GHz. Based on the obtained data, an inset-fed microstrip patch antenna is designed and simulated in CST Studio Suite at 2.45 GHz to demonstrate the feasibility of cork as a sustainable and feasible substrate for antenna and sensor applications. It is found that the cork antenna can achieve electrical performance comparable to a standard FR4 substrate microstrip patch antenna at 2.45 GHz with a reflection coefficient magnitude (S₁₁), of -24 dB, a gain of 8.18 dBi and a radiation efficiency of 93%.

Original language	English
Title of host publication	Proceedings of the 19th Australasian Symposium on Antennas, Flinders University, Adelaide, 11th - 13th February, 2026
Place of Publication	U.S.
Publisher	IEEE
Pages	4-6
Number of pages	3
ISBN (Electronic)	9798331545734
DOIs	https://doi.org/10.1109/ASA69049.2026.11466986
Publication status	Published - 2026
Event	Australasian Symposium on Antennas - Adelaide, Australia Duration: 11 Feb 2026 → 13 Feb 2026 Conference number: 19th

Conference

Conference	Australasian Symposium on Antennas
Country/Territory	Australia
City	Adelaide
Period	11/02/26 → 13/02/26

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10.1109/ASA69049.2026.11466986

Cite this

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title = "Microwave characterization of cork as a sustainable substrate for antenna and sensor applications",

abstract = "In this paper, cork material is investigated as a sustainable substrate for antenna and sensor applications. The dielectric properties of cork, including dielectric constant, dielectric loss factor and loss tangent (tanδ), are measured using the Agilent 85070E Dielectric Probe Kit over the frequency range of 250 MHz to 20 GHz. Based on the obtained data, an inset-fed microstrip patch antenna is designed and simulated in CST Studio Suite at 2.45 GHz to demonstrate the feasibility of cork as a sustainable and feasible substrate for antenna and sensor applications. It is found that the cork antenna can achieve electrical performance comparable to a standard FR4 substrate microstrip patch antenna at 2.45 GHz with a reflection coefficient magnitude (S11), of -24 dB, a gain of 8.18 dBi and a radiation efficiency of 93\%.",

author = "Amir Zahedi and Robert Salama and Karthick Thiyagarajan and Ranjith Liyanapathirana",

year = "2026",

doi = "10.1109/ASA69049.2026.11466986",

language = "English",

pages = "4--6",

booktitle = "Proceedings of the 19th Australasian Symposium on Antennas, Flinders University, Adelaide, 11th - 13th February, 2026",

publisher = "IEEE",

note = "Australasian Symposium on Antennas ; Conference date: 11-02-2026 Through 13-02-2026",

}

Zahedi, A, Salama, R , Thiyagarajan, K & Liyanapathirana, R 2026, Microwave characterization of cork as a sustainable substrate for antenna and sensor applications. in Proceedings of the 19th Australasian Symposium on Antennas, Flinders University, Adelaide, 11th - 13th February, 2026. IEEE, U.S., pp. 4-6, Australasian Symposium on Antennas, Adelaide, South Australia, Australia, 11/02/26. https://doi.org/10.1109/ASA69049.2026.11466986

Microwave characterization of cork as a sustainable substrate for antenna and sensor applications. / Zahedi, Amir; Salama, Robert ; Thiyagarajan, Karthick et al.
Proceedings of the 19th Australasian Symposium on Antennas, Flinders University, Adelaide, 11th - 13th February, 2026. U.S.: IEEE, 2026. p. 4-6.

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

TY - GEN

T1 - Microwave characterization of cork as a sustainable substrate for antenna and sensor applications

AU - Zahedi, Amir

AU - Salama, Robert

AU - Thiyagarajan, Karthick

AU - Liyanapathirana, Ranjith

N1 - Conference code: 19th

PY - 2026

Y1 - 2026

N2 - In this paper, cork material is investigated as a sustainable substrate for antenna and sensor applications. The dielectric properties of cork, including dielectric constant, dielectric loss factor and loss tangent (tanδ), are measured using the Agilent 85070E Dielectric Probe Kit over the frequency range of 250 MHz to 20 GHz. Based on the obtained data, an inset-fed microstrip patch antenna is designed and simulated in CST Studio Suite at 2.45 GHz to demonstrate the feasibility of cork as a sustainable and feasible substrate for antenna and sensor applications. It is found that the cork antenna can achieve electrical performance comparable to a standard FR4 substrate microstrip patch antenna at 2.45 GHz with a reflection coefficient magnitude (S11), of -24 dB, a gain of 8.18 dBi and a radiation efficiency of 93%.

AB - In this paper, cork material is investigated as a sustainable substrate for antenna and sensor applications. The dielectric properties of cork, including dielectric constant, dielectric loss factor and loss tangent (tanδ), are measured using the Agilent 85070E Dielectric Probe Kit over the frequency range of 250 MHz to 20 GHz. Based on the obtained data, an inset-fed microstrip patch antenna is designed and simulated in CST Studio Suite at 2.45 GHz to demonstrate the feasibility of cork as a sustainable and feasible substrate for antenna and sensor applications. It is found that the cork antenna can achieve electrical performance comparable to a standard FR4 substrate microstrip patch antenna at 2.45 GHz with a reflection coefficient magnitude (S11), of -24 dB, a gain of 8.18 dBi and a radiation efficiency of 93%.

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BT - Proceedings of the 19th Australasian Symposium on Antennas, Flinders University, Adelaide, 11th - 13th February, 2026

PB - IEEE

CY - U.S.

T2 - Australasian Symposium on Antennas

Y2 - 11 February 2026 through 13 February 2026

ER -

Microwave characterization of cork as a sustainable substrate for antenna and sensor applications

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