Design of Unbalance Slot Printed Dipole Antenna with Triangle Parasitic Element for DTV Receiver

Taonok, Chawangsak; Saetiaw, Charinsak

doi:10.1109/ecti-con49241.2020.9158107

Cited by 2 publications

(4 citation statements)

References 8 publications

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“…Table 3 shows a comparison between previous works and the proposed portable wideband directional antenna scheme. Printed meander line antenna with magneto dielectric 467-1012 (73.69%) 0.86-1.65 10 × 25 × 1 (0.015λ × 0.039λ × 0.0015λ) [19] Printed dipole antenna 455-1070 (80.65%) −0.57-1.15 20 × 200 × 0.8 (0.031λ × 0.313λ × 0.001λ) [20] Printed dipole antenna 452-897 (65.97%) 2.09-3.85 45 × 250 × 1.6 (0.070λ × 0.391λ × 0.002λ) [21] Printed dipole antenna 441-890 (67.46%) 4.65 (peak) 35 × 243 × 1.6 (0.054λ × 0.380λ × 0.002λ) [23] Printed loop antenna 461-806 (54.45%) 1.9-2.5 165 × 165 × 0.8 (0.258λ × 0.258λ × 0.001λ) [24] Printed quasi-Yagi antenna 450-848 (61.32%) 3.5-4.6 200 × 240 × 1.6 (0.313λ × 0.376λ× 0.002λ) [26] Log-periodic antenna 470-790 (50.79%)…”

Section: Prototype Fabrication and Measured Resultsmentioning

confidence: 99%

“…Currently, the antennas commonly used for digital television signal reception include loop antennas, omnidirectional dipole antennas, monopoles, log-periodic dipole arrays (LPDA), and quasi-Yagi antennas [ 18 ]. The loop antennas, omnidirectional dipole antennas, and monopoles can receive signals from every direction but achieve a low gain [ 19 , 20 , 21 , 22 , 23 ]. Meanwhile, the LPDA and quasi-Yagi antennas realize a high gain by using multiple dipoles.…”

Section: Introductionmentioning

confidence: 99%

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Portable Wideband Directional Antenna Scheme with Semicircular Corrugated Reflector for Digital Television Reception

Luadang

Pukraksa

Janpangngern

et al. 2022

Sensors

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This research proposed a portable wideband horizontally-polarized directional antenna scheme with a radome for digital terrestrial television reception. The operating frequency band of the proposed antenna scheme is 470–890 MHz. The portable antenna scheme was an adaptation of the Yagi-Uda antenna, consisting of a folded bowtie radiator, a semicircular corrugated reflector, and a V-shaped director. Simulations were carried out, and an antenna prototype was fabricated. To validate, experiments were undertaken to assess the antenna performance, including the impedance bandwidth (|S11| ≤ −10 dB), gain, and unidirectionality. The measured impedance bandwidth was 75.93%, covering 424–943 MHz, with a measured antenna gain of 2.69–4.84 dBi. The radiation pattern was of unidirectionality for the entire operating frequency band. The measured xz- and yz-plane half-power beamwidths were 150°, 159°, 160° and 102°, 78°, 102° at 470, 680, and 890 MHz, with the corresponding cross-polarization below −20 dB and −40 dB. The radome had a negligible impact on the impedance bandwidth, gain, and radiation pattern. The power obtained for the outdoor test, at 514 MHz, was 38.4 dBµV (−70.4 dBm) with a carrier-to-noise ratio (C/N) of 11.6 dB. In addition, the power obtained for the indoor test was 26.6 dBµV (−82.2 dBm) with a C/N of 10.9 dB. The novelty of this research lies in the concurrent use of the Yagi-Uda and bowtie antenna technologies to improve the impedance bandwidth and directionality of the antenna for digital terrestrial television reception.

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Section: Prototype Fabrication and Measured Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Portable Wideband Directional Antenna Scheme with Semicircular Corrugated Reflector for Digital Television Reception

Luadang

Pukraksa

Janpangngern

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…The quasi-Yagi and LPDA antennas have high gain from using multiple dipoles, but it is necessary to check the receiving direction and adjust the location because of directivity [ 6 , 7 , 8 , 9 ]. On the other hand, the omni-directional dipole, monopole, and loop antennas can receive from all directions, but have low gain [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…It operated at 452–897 MHz with gain of 2.1–3.9 dBi and a 250 mm × 45 mm antenna size. An unbalanced slot-printed dipole antenna with a triangular parasitic element for a DTV receiver was proposed with a size of 250 mm × 135 mm [ 13 ]. It covered 441–890 MHz with peak gain of 4.7 dBi.…”

Section: Introductionmentioning

confidence: 99%

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

Yeo

Lee

2021

Sensors

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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.

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Design of Unbalance Slot Printed Dipole Antenna with Triangle Parasitic Element for DTV Receiver

Cited by 2 publications

References 8 publications

Portable Wideband Directional Antenna Scheme with Semicircular Corrugated Reflector for Digital Television Reception

Portable Wideband Directional Antenna Scheme with Semicircular Corrugated Reflector for Digital Television Reception

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

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