A nona‐band narrow‐frame antenna with a defected ground structure for mobile phone applications

Pang, Jiarui; Zhu, Mingmin; Yu, Guoliang; Zhou, Hao-Miao

doi:10.1002/mop.32047

Cited by 4 publications

(2 citation statements)

References 22 publications

(29 reference statements)

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“…A compact multiband antenna for mobile terminal applications for GSM, DCS, PCS, UMTS, and LTE was presented in [ 35 ] and also in [ 36 ] with a footprint of 60 × 115 mm 2 and 75 × 120 mm 2 , respectively. Another nona-band narrow-frame antenna design configuration for mobile phone applications was proposed in [ 37 ]. The antenna covers the 2G, 3G, 4G, and 5G applications, but has a large volumetric size of 80 × 140 × 0.8 mm 3 using FR4 substrate.…”

Section: Introductionmentioning

confidence: 99%

A novel quadband ultra miniaturized planar antenna with metallic vias and defected ground structure for portable devices

Mpele¹,

Mbango²,

Konditi³

et al. 2021

Heliyon

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A novel heart-shaped monopole antenna used in wireless portable communication devices is proposed and discussed in this paper. The antenna has a radiant patch surface area of 28.504 mm 2 , the physical size of 15 Â 12.5 Â 1 mm 3 , and electrical dimensions of 0.095λ 0 Â 0.079λ 0 Â 0.006λ 0 , where λ 0 denotes the wavelength of the free space at 1.89 GHz. Its prototype is printed on FR4 HTG-175, having a permittivity of 4.2 and a loss tangent of 0.019 at 1 GHz. The partial ground plane and two metallic vias connecting two open-ended branches of the slitted radiating patch to a parasitic conductor element results in about 98% miniaturization of the active patch area, as compared to the conventional antenna. The proposed antenna exhibits nearly an omnidirectional pattern in the elevation plane with a maximum radiation efficiency of 82.78% at 3.99 GHz, while a peak gain of 4.7 dBi is obtained at 6.5 GHz. The measured-6 dB impedance bandwidths demonstrate that the proposed quadband antenna operates in all the frequency bands of mobile telecommunication standards (2G/3G/4G/5G) and other applications, including WLAN, WiMAX, ISM, meteorological services, IEEE 802.11y, and C-band satellite communications. This antenna is easy to manufacture and can be used in most portable devices as a compact internal antenna. After simulating the modeled antenna using HFSS, a prototype was experimentally tested, and the measured results were compared with the data obtained by simulation. The parameters analyzed are return loss, bandwidth, and gain on all frequency bands. The fabricated prototype guarantees a minimum-10 dB bandwidth of 110 MHz and a maximum return loss of-12.2 dB, despite its low radiation efficiency of 21.43 % in the lower band dedicated to GSM applications. Furthermore, the proposed antenna operates as a narrowband and wideband.

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Section: Introductionmentioning

confidence: 99%

A novel quadband ultra miniaturized planar antenna with metallic vias and defected ground structure for portable devices

Mpele¹,

Mbango²,

Konditi³

et al. 2021

Heliyon

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show abstract

“…A narrow frame and a hybrid mode with slotted antennas for mobile communication and sub-6 GHz wireless applications presented in refs. [ 45 , 46 ]. The antennas exhibited optimal performance features with larger dimensions.…”

Section: Introductionmentioning

confidence: 99%

A Novel Low-Cost Compact High-Performance Flower-Shaped Radiator Design for Modern Smartphone Applications

et al. 2023

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This manuscript examines the design principle and real-world validation of a new miniaturized high-performance flower-shaped radiator (FSR). The antenna prototype consists of an ultracompact square metallic patch of 0.116λ0 × 0.116λ0 (λ0 is the free space wavelength at 3.67 GHz), a rectangular microstrip feed network, and a partial metal ground plane. A novel, effective, and efficient approach based on open circuit loaded stubs is employed to achieve the antenna’s optimal performance features. Rectangular, triangular, and circular disc stubs were added to the simple structure of the square radiator, and hence, the FSR configuration was formed. The proposed antenna was imprinted on a low-cost F4B laminate with low profile thickness of 0.018λ0, relative permittivity εr = 2.55, and dielectric loss tangent δ = 0.0018. The designed radiator has an overall small size of 0.256λ0 × 0.354λ0. The parameter study of multiple variables and their influence on the performance results has been extensively studied. Moreover, the impact of different substrate materials, impedance bandwidths, resonance tuning, and impedance matching has also been analyzed. The proposed antenna model has been designed, simulated, and fabricated. The designed antenna exhibits a wide bandwidth of 5.33 GHz ranging from 3.67 to 9.0 GHz at 10 dB return loss, which resulted in an 83.6% fractional impedance bandwidth; a maximum gain of 7.3 dBi at 8.625 GHz; optimal radiation efficiency of 89% at 4.5 GHz; strong intensity current flow across the radiator; and stable monopole-like far-field radiation patterns. Finally, a comparison between the scientific results and newly published research has been provided. The antenna’s high-performance simulated and measured results are in a good agreement; hence, they make the proposed antenna an excellent choice for modern smartphones’ connectivity with the sub-6 GHz frequency spectrum of modern fifth-generation (5G) mobile communication application.

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A Compact Textile Antenna with a Defected Ground Structure for S, C, X and Ku Band Applications

Jayasree²

2021

IETE Journal of Research

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A nona‐band narrow‐frame antenna with a defected ground structure for mobile phone applications

Cited by 4 publications

References 22 publications

A novel quadband ultra miniaturized planar antenna with metallic vias and defected ground structure for portable devices

A novel quadband ultra miniaturized planar antenna with metallic vias and defected ground structure for portable devices

A Novel Low-Cost Compact High-Performance Flower-Shaped Radiator Design for Modern Smartphone Applications

A Compact Textile Antenna with a Defected Ground Structure for S, C, X and Ku Band Applications

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