Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity

S. A. Kyriazidou; R. E. Diaz; N. G. Alexopoulos

doi:10.1109/APS.1998.702024

Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity

S. A. Kyriazidou, R. E. Diaz, N. G. Alexopoulos

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Scopus citations

Abstract

We present the design of a dispersive medium with a permittivity regime less than unity and investigate the radiation characteristics of elementary printed antennas within such a grounded substrate. The study is motivated by the possibility of minimization or elimination of surface waves in this permittivity region irrespective of the substrate thickness. The novel material is resynthesized as an amorphous ensemble of spherical particles composed of a low-loss dielectric core coated with a highly resonant dielectric layer and embedded into a dielectric host. The resulting complex structure is transparent over its entire spectrum except of two narrow-band opaque windows of adjustable depth, shape and positioning. The effective permittivity function is obtained according to the classical theory of effective media and exhibits a characteristic region with the real permittivity function ϵ^r _eff<1. We discuss the non-local but causal character of wave propagation in this permittivity region and examine the application of the novel medium in printed circuit antennas. A horizontal elementary microstrip dipole is pieced on a grounded substrate layer composed of this complex medium. The radiation pattern is examined within the region ϵ^r _eff<1 as a function of the constitutive media parameters and the of the inclusions geometry.

Original language	English (US)
Title of host publication	IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas
Subtitle of host publication	Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	660-663
Number of pages	4
ISBN (Print)	0780344782, 9780780344785
DOIs	https://doi.org/10.1109/APS.1998.702024
State	Published - Jan 1 1998
Externally published	Yes
Event	1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998 - Atlanta, United States Duration: Jun 21 1998 → Jun 26 1998

Publication series

Name	IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
Volume	2

Other

Other	1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998
Country/Territory	United States
City	Atlanta
Period	6/21/98 → 6/26/98

ASJC Scopus subject areas

Instrumentation
Radiation
Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/APS.1998.702024

Cite this

Kyriazidou, S. A., Diaz, R. E., & Alexopoulos, N. G. (1998). Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity. In IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting (pp. 660-663). Article 702024 (IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APS.1998.702024

Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity. / Kyriazidou, S. A.; Diaz, R. E.; Alexopoulos, N. G.
IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting. Institute of Electrical and Electronics Engineers Inc., 1998. p. 660-663 702024 (IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kyriazidou, SA, Diaz, RE & Alexopoulos, NG 1998, Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity. in IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting., 702024, IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting, vol. 2, Institute of Electrical and Electronics Engineers Inc., pp. 660-663, 1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998, Atlanta, United States, 6/21/98. https://doi.org/10.1109/APS.1998.702024

Kyriazidou SA, Diaz RE, Alexopoulos NG. Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity. In IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting. Institute of Electrical and Electronics Engineers Inc. 1998. p. 660-663. 702024. (IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting). doi: 10.1109/APS.1998.702024

Kyriazidou, S. A. ; Diaz, R. E. ; Alexopoulos, N. G. / Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity. IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting. Institute of Electrical and Electronics Engineers Inc., 1998. pp. 660-663 (IEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting).

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Radiation properties of microstrip elements in a dispersive substrate of permittivity less than unity

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