Wideband internal PIFA‐loop antenna designed on the bezel of digital television applications for UHF band

2018 ◽  
Vol 54 (22) ◽  
pp. 1260-1262 ◽  
Author(s):  
Thai Van Trinh ◽  
Gyonyun Kim ◽  
Jungjin Kim ◽  
Chang Won Jung
Keyword(s):  
Loop Antenna ◽  
Digital Television ◽  
Uhf Band

scholarly journals Miniaturized Wideband Loop Antenna Using a Multiple Half-Circular-Ring-Based Loop Structure and Horizontal Slits for Terrestrial DTV and UHD TV Applications

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 2916
Author(s):  
Junho Yeo ◽  
Jong-Ig Lee
Keyword(s):  
Coplanar Waveguide ◽  
Impedance Matching ◽  
Circular Ring ◽  
Loop Antenna ◽  
Digital Television ◽  
Loop Structure ◽  
High Definition ◽  
Circular Sector ◽  
Feed Line ◽  
Length Reduction

A miniaturized wideband loop antenna for terrestrial digital television (DTV) and ultra-high definition (UHD) TV applications is proposed. The original wideband loop antenna consists of a square loop, two circular sectors to connect the loop with central feed points, and a 75 ohm coplanar waveguide (CPW) feed line inserted in the lower circular sector. The straight side of the square loop is replaced with a multiple half-circular-ring-based loop structure. Horizontal slits are appended to the two circular sectors in order to further reduce the antenna size. A tapered CPW feed line is also employed in order to improve impedance matching. The experiment results show that the proposed miniaturized loop antenna operates in the 460.7–806.2 MHz frequency band for a voltage standing wave ratio less than two, which fully covers the DTV and UHD TV bands (470–771 MHz). The proposed miniaturized wideband loop antenna has a length reduction of 21.43%, compared to the original loop antenna.

Electrically small loop antenna for UHF band RFID tag

2008 ◽  
Author(s):  
Young-Joon Ahn ◽  
F.J. Harackiewi ◽  
Sung-Joo Kim ◽  
Myun-Joo Park ◽  
Yong-Seek Chung ◽  
...  
Keyword(s):  
Loop Antenna ◽  
Rfid Tag ◽  
Small Loop ◽  
Uhf Band

scholarly journals A Radio Propagation Model for Mixed Paths in Amazon Environments for the UHF Band

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
L. E. C. Eras ◽  
Diego K. N. da Silva ◽  
Fabrício B. Barros ◽  
Luís M. Correia ◽  
G. P. S. Cavalcante
Keyword(s):  
Electric Fields ◽  
Incidence Angle ◽  
Measurement Data ◽  
Propagation Model ◽  
Radio Propagation ◽  
Digital Television ◽  
Field Calculation ◽  
Radio Propagation Model ◽  
City Water ◽  
Uhf Band

This paper presents a radio propagation model for the UHF band that is designed for an outdoor scenario in the Amazon region of Brazil and comprises city, water, and forest environments. The model is designed for the Mobile and Home Digital Television (M-DTV and H-DTV) services. In the case of M-DTV, the electric field is calculated at user height, while for H-DTV it considers a fixed antenna on houses roofs. The field calculation is based on Geometrical Optics (GO) and the Uniform Theory of Diffraction (UTD). The results for M-DTV show a good agreement with measurement data in an Amazonian city (Belém) for 521 MHz. Different parameters of the proposed model are analyzed: the transition zone city-water, the level of water, the incidence angle in the forest, and electrical parameters for forest. Finally, the comparison that was made between the electric fields for H-DTV and M-DTV shows a difference of up to 19 dB.

Folded Type Rectangular Loop Antenna in UHF Band

2008 ◽  
Author(s):  
Naoto Kogo ◽  
Susumu Nakazawa ◽  
Toru Iwasaki ◽  
Shoji Tanaka ◽  
Kazuyoshi Shogen ◽  
...  
Keyword(s):  
Loop Antenna ◽  
Uhf Band

Particle Swarm Optimization Based UHF Band Rectangular Loop Antenna for Unmanned Aerial Vehicle Application

2021 ◽  
Author(s):  
Mohamad Ridwan ◽  
Farida Gamar ◽  
Maretha Ruswiansari ◽  
Hanif Abdillah ◽  
Dea Fitriani Ilma ◽  
...  
Keyword(s):  
Particle Swarm Optimization ◽  
Unmanned Aerial Vehicle ◽  
Particle Swarm ◽  
Loop Antenna ◽  
Swarm Optimization ◽  
Aerial Vehicle ◽  
Uhf Band

Compact Circularly Polarized Meandered-Loop Antenna for UHF-Band RFID Tag

2016 ◽  
Vol 15 ◽  
pp. 1602-1605 ◽  
Author(s):  
Horng-Dean Chen ◽  
Chow-Yen-Desmond Sim ◽  
Ching-Han Tsai ◽  
Colin Kuo
Keyword(s):  
Loop Antenna ◽  
Rfid Tag ◽  
Circularly Polarized ◽  
Uhf Band
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