Circuital characteristics and radiation properties of an UWB electric-magnetic planar antenna for Ku-band applications

A planar, directive antenna with large fractional bandwidth is introduced in this paper. A detailed discussion on the proposed antenna topology and its architecture is reported. The proposed element is a combination of a patch and a loop radiator. A proper combination of the electric field radiator...

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Bibliographic Details
Published in:Radio science 2013-01, Vol.48 (1), p.13-22
Main Authors: Haider, N., Caratelli, D., Yarovoy, A. G.
Format: Article
Language:English
Subjects:
antenna
Antennas
Bandwidth
circuital characteristics
Circuits
Computational efficiency
Equivalent circuits
Patch antennas
Radiators
Ultrawideband
UWB
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Summary:A planar, directive antenna with large fractional bandwidth is introduced in this paper. A detailed discussion on the proposed antenna topology and its architecture is reported. The proposed element is a combination of a patch and a loop radiator. A proper combination of the electric field radiator (patch) with a magnetic field radiator (loop around the patch) is exploited for expanding the operational bandwidth. A parametric study is presented to investigate the effect of the antenna geometrical parameters on its performance. A general and computationally efficient procedure for extracting the antenna equivalent circuit is described and used to achieve a meaningful circuit theory‐based insight into the characteristics of the radiating structure. The theoretical and experimental results are compared, and it is demonstrated that the element features over 100% fractional bandwidth, good impedance matching, and unidirectional and stable radiation patterns. Key Points An antenna element with 3:1 impedance bandwidth is developed A frequency‐independent equivalent circuit has been derived
ISSN:0048-6604
1944-799X
DOI:10.1002/rds.20015