A Low-Profile Antenna Design for LTE/WWAN Smartphone Application

Yu, Cheng-Chi; Huarig, Chien-Yu; Yang, Jiin-Hwa; Hsu, Cheng‐Hsing; Chen, Ja-Hao

doi:10.23919/piers.2018.8597592

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…In [1,12,14], LC element is used and bent-type structure greatly reduces dimension, while the volume is larger, and cover bandwidth is less than present antenna. In [4,5,9,10], LC element is not used, and antenna occupies a smaller area, but volume and cover bandwidth are less than present antenna. Furthermore, present antenna can cover Reduce 8mm…”

Section: Experimental Results and Parametric Studymentioning

confidence: 99%

“…e evolution of wireless system technology has enabled not only the miniaturization but also the multiband applicability of antenna systems of portable communication devices such as smartphones and laptops (notebooks (NBs)) [1][2][3][4][5]. In particular, not only laptops support wireless LAN (WLAN) but also developments have occurred with respect to 4G/5G wireless systems [6][7][8][9]. A system with long-term evolution (LTE) and sub-6G (FR1) applications is thus required.…”

Section: Introductionmentioning

confidence: 99%

“…us, the antennas used in wireless equipment are required to be small as well as to exhibit a low profile. Previously executed research [9,12] has proposed an approach for designing small antennas with a meander architecture. In other research studies [3,8,10,13], meander structures with loop-type antennas were used to achieve a small equipment size.…”

Section: Introductionmentioning

confidence: 99%

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A Novel 5G LTE Antenna Design for Portable Devices

Jhang

Sun

2020

International Journal of Antennas and Propagation

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This paper presents the low profile, planar, and small-size antenna design for WWAN, LTE, and 5G (5th generation wireless systems) for use in portable communication equipment. The antenna occupies only 65 × 13 × 0.4 mm3, and the antenna is combined with a 200 × 260 mm2 copper plate to simulated system ground plane. In the low band, a direct-fed right-side arm and a coupled-fed arm implemented can excite a 1/4 λ fundamental resonant mode at 0.85 and 0.76 GHz to cover 0.698–0.96 GHz and upper 3/4 λ and 5/4 λ resonant modes are controlled by L-shaped element at 2.34, 2.69, 3.4, and 4.0 GHz to cover 1.71–2.69 GHz and 3.2–4.2 GHz. The direct-fed left-side arm produced 1/4 λ to cover 5.15–5.85 GHz. In far-field measured, peak gain and efficiency in low, middle, and high bands are 0.43–5.67 dBi and 55–86%. Finally, experiments demonstrate that the present antenna exhibits a good performance for portable devices.

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Section: Experimental Results and Parametric Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Novel 5G LTE Antenna Design for Portable Devices

Jhang

Sun

2020

International Journal of Antennas and Propagation

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“…While traditional single-band antennas suffice for conventional equipment, contemporary systems demand more versatile and efficient solutions, such as dual-band or multiband antennas [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22], to accommodate operations across multiple frequencies. Moreover, compact antenna form factors are crucial, considering the diverse sizes and internal electronics of these devices.…”

Section: Introductionmentioning

confidence: 99%

Antenna Booster Element for Multiband Operation

García,

Andújar,

Anguera

2024

Sensors

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The escalating demand for versatile wireless devices has fostered the need to reduce the antenna footprint to support the integration of multiple new functionalities. This poses a significant challenge for the Internet of things (IoT) antenna designers tasked with creating antennas capable of supporting multiband operation within physical constraints. This work aims to address this challenge by focusing on the optimization of an antenna booster element to achieve multiband performance, accomplished through the design of a band-reject filter. This proposal entails a printed circuit board (PCB) measuring 142 mm × 60 mm, with a clearance area of 12 mm × 40 mm, incorporating an antenna booster element of 30 mm × 3 mm × 1 mm (0.07 λ). This configuration covers frequencies in the LFR (low-frequency range) from 698 MHz to 960 MHz and the HFR (high-frequency range) from 1710 MHz to 2690 MHz. A theoretical analysis is conducted to optimize bandwidth in both frequency regions. Finally, a prototype validates the analytic results.

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