A Novel Low-Profile High-Gain UHF Antenna Using High-Impedance Surfaces

A novel wideband low-profile planar antenna design based on the use of a high-impedance surface (HIS) is presented for digital television (DTV) reception in the UHF band. The proposed design is based on a wideband monopole antenna in close proximity to an artificial ground plane, composed of an arra...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2015-01, Vol.14, p.1014-1017
Main Authors: Mohamed-Hicho, Nora Mohamed, Antonino-Daviu, Eva, Cabedo-Fabres, Marta, Ferrando-Bataller, Miguel
Format: Article
Language:English
Subjects:
Antenna measurements
Artificial magnetic conductor (AMC)
Bandwidth
Broadband antennas
digital television (DTV) antenna
electromagnetic band-gap (EBG)
high impedance surfaces (HIS)
high-gain
low-profile antenna
Metamaterials
Periodic structures
UHF antenna
UHF antennas
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Summary:A novel wideband low-profile planar antenna design based on the use of a high-impedance surface (HIS) is presented for digital television (DTV) reception in the UHF band. The proposed design is based on a wideband monopole antenna in close proximity to an artificial ground plane, composed of an array of square metal loops at the top, an air gap and a ground plane at the bottom, without grounded vias. Low-cost substrates are employed in the design: rigid PVC for the antenna and foamed PVC for the artificial ground plane. The advantages of the proposed design for DTV applications are high gain, low profile, light weight, low cost and large bandwidth. Details of the proposed antenna design are described, and measurements together with a comparison to a conventional antenna with PEC ground plane are presented.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2015.2389274