DTV/LTE antennas with no physical structure for laptop computers

Chen, Shu‐Chuan; Nieh, Jo-Yen; Liao, Wei-Hsiang; Li, Shengmin

doi:10.1080/09205071.2021.1895895

Cited by 2 publications

(7 citation statements)

References 20 publications

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“…The deployment of 5G telecommunication systems in electronic devices such as smartphones, laptops, and tablets has become increasingly prevalent, often in conjunction with the previous generation 4G LTE communication systems [1][2][3][4][5]. Typically, these devices employ separate antennas for 4G LTE and 5G systems [6,7], allowing compact and slim designs that cater to specific frequency bands.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to 5G and 4G LTE systems, modern electronic devices often include wireless network communication systems such as WLAN or Bluetooth [3,[11][12][13][14]. However, most antennas designed for 5G, 4G LTE and wireless network systems are independently developed [1,2,6,[14][15][16][17][18][19], with only a few designs combining two of these systems [10]. There are also some studies that have only been designed for mobile phones with respect to the LTE Band 42 , LTE Band 43 (3.6-3.8 GHz), or LTE Band 46 (5.15-5.925 GHz) in the context of Snb-6G [5,8,20].…”

Section: Introductionmentioning

confidence: 99%

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Multi-Band Coupled-Fed Antenna for 4G LTE, Sub-6G, and WLAN Frequency Bands in Various Electronic Devices

Chung,

Lee,

Hsu

et al. 2024

IEEE Access

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This paper proposes a multi-band coupled-fed antenna(MBCFA) design for 4G LTE, Sub-6G, and WLAN frequencies, suitable for electronic devices with different sizes and fully metallic backplates. The MBCFA structure can be replicated on the fully metallic backplates of laptops, tablets, or smartphones to form a multi-input multi-output (MIMO) antenna system. Each MBCFA at different positions on laptops and tablets exhibits similar resonance characteristics, highlighting its high robustness and stability. The proposed MBCFA is manufactured using low-cost FR4 material. The overall size of MBCFA is 70 mm × 12.5 mm and an FR4 thickness of 0.8 mm, the measured reflection losses within the -6dB range are 740-990 MHz (250 MHz bandwidth), 1380-2640 MHz (1260 MHz bandwidth), and 4250-7330 MHz (3080 MHz bandwidth). The MBCFA's isolation levels in the 4G LTE frequency band are below -16 dB, while the remaining frequency bands have isolation levels below -20 dB. The maximum antenna gain is approximately 5 dBi, and the optimal antenna efficiency is 60%. The Equivalent Coupling Coefficient (ECC) for all frequency bands is below 0.5. Given the excellent antenna characteristics described above, the proposed multi-band coupledfed antenna is an outstanding candidate for laptop, tablet, and smartphone antennas.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-Band Coupled-Fed Antenna for 4G LTE, Sub-6G, and WLAN Frequency Bands in Various Electronic Devices

Chung,

Lee,

Hsu

et al. 2024

IEEE Access

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“…As a result, the development of small and low‐profile antennas for mobile devices is always ongoing, and those designed to cover the 4G and 5G bands can be found in Refs. [2–24].…”

Section: Introductionmentioning

confidence: 99%

“…Two antennas were simultaneously installed on the upper or lower edge, employing a neutral line design to decouple them [7]. Addressing the challenge of minimising the antenna profile height for LTE LB coverage, certain 4G dual antennas were strategically placed on or near the spindle of the laptop's display ground plane to optimise screen utilisation [18][19][20][21][22]. In Ref.…”

mentioning

confidence: 99%

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Application of switchable 4G/5G dual antenna system for laptops

Cheng,

Chen,

et al. 2023

IET Microwaves Antenna & Prop

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This work investigates a switchable 4G/5G dual‐antenna system designed for laptops. The dual open‐slot antenna structure is straightforward, with a slot width of only 2 mm. Each individual antenna features two different feed sections located in two separate regions between the slots. Port 1 is a direct‐feeding design with 3.6 pF chip capacitance, while Port 2 is only a direct‐feeding design. When Port 1 is excited and Port 2 is terminated to 50‐Ω, the antenna is functional in long‐term evolution (LTE) low‐band (617–960 MHz) and 5G sub‐6 GHz band (3300–5000 MHz). On the other hand, when Port 2 is excited and Port 1 is terminated to 50‐Ω, the antenna is functional in the LTE medium/high bands between 1710 and 2690 MHz. The measured isolation consistently exceeded 30 dB, and the efficiency remained above 48% across the entire frequency range. The calculated envelope correlation coefficients derived from the complex E‐field radiation pattern measurements were consistently below 0.02. These findings indicate that the system is exceptionally well‐suited for applications characterised by integrated metallic environments and a high display‐to‐body ratio.

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DTV/LTE antennas with no physical structure for laptop computers

Cited by 2 publications

References 20 publications

Multi-Band Coupled-Fed Antenna for 4G LTE, Sub-6G, and WLAN Frequency Bands in Various Electronic Devices

Multi-Band Coupled-Fed Antenna for 4G LTE, Sub-6G, and WLAN Frequency Bands in Various Electronic Devices

Application of switchable 4G/5G dual antenna system for laptops

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