Compact Ultra-Wide-Band HI Monopole Antenna Loaded with C-Shaped Parasitic Elements for DVB-T and LTE Applications

de Alcântara Neto, Miércio C.; Cavalcante, Gervásio P. S.; de Oliveira, Rodrigo M. S.; Ribeiro, Fábio F.; Ferreira, Flávio H. C. S.; Barros, Fabrício J. B.; de Almeida, José F. S.

doi:10.1590/2179-10742020v19i3841

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Article • J. Microw. Optoelectron. Electromagn. Appl. 19 (3) • Sept 2020 • https://doi.org/10.1590/2179-10742020v19i3841 copy

Compact Ultra-Wide-Band HI Monopole Antenna Loaded with C-Shaped Parasitic Elements for DVB-T and LTE Applications

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

In this work, a compact ultra-wide-band microstrip antenna loaded with C-shaped parasitic elements, for Digital Video Broadcasting - Terrestrial (DVB-T) and LTE 450 / 700 signal reception, is designed and presented. The proposed antenna is named “HI Monopole”, and its geometry has been designed to be simple, lightweight, and compact. Fabrication process is inexpensive and suitable for electronic gadgets. The HI Monopole operates with ultra-wide bandwidth characteristics, encompassing Digital Video Broadcasting - Terrestrial (DVB-T) standard (470-890 MHz), LTE-450 and LTE-700 bands. This feature has been accomplished by inserting an indent in its ground plane, adjusting dimensions of the feeding line, and adding two C-shaped parasite elements onto the region posterior to the antenna's main radiating element. It was verified via electromagnetic measuring that this device is capable of covering the 429-1022 MHz range. Hence, its total bandwidth is 593 MHz. The superior and inferior cutoff frequencies have been defined using the -10 dB return loss reference level. Therefore, the proposed antenna can be employed for receiving DTV and LTE signals broadcasted in any country, independently of its adopted standard.

Index Terms
HI monopole; DVB-T; LTE; parasitic elements; ultra-wideband printed antenna

Figure 2a		Figure 2b
Parameter	Value	Parameter	Value
Ws	48	Wp	17.25
Wa	25	Hp	75
Ha	110	Wg	48
Hs	152.5	Hg	42.5
Hf	35.5	gap	3
Wf	3	Gpp	38
L	29	Gpl	11.75
W	9.5	--	--

Work	Measured coverage range (MHz)	Bandwidth (MHz)	Antenna Dimensions (mm)	Cutoff threshold for defining operation band (dB)	Coverage capacity of DTV-T standard (%)
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This work	429 – 1022	593	48 × 152.5 × 1.57	-10	100

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