Multiband Full-Metal-Rimmed Antenna Design for Smartphones

Aziz, Rao Shahid; Arya, Ashwini Kumar; Park, Seong‐Ook

doi:10.1109/lawp.2016.2548018

Cited by 18 publications

(7 citation statements)

References 9 publications

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“…These antenna parameters are reasonable for practical mobile applications. Furthermore, Table shows the comparison basis on the performance between proposed antenna and reported antenna for mobile handset in literature . Table reveals that the proposed antenna occupies smaller space and ground clearance is only 4 × 38 mm 2 .…”

Section: Resultsmentioning

confidence: 99%

“…For example, in Ref. , a full‐metal‐rimmed structure for multiband operations has proposed. This multiband antenna is consists of a circuit board with perturbed ground plane and a fixed full‐metal rim surrounding the circuit board, which gives wide operating bands.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it becomes more challenging to adjust antenna in a limited space to maintain larger display screen. Therefore, in these circumstances, designing a wideband and miniaturize mobile antenna is a major technological challenge …”

Section: Introductionmentioning

confidence: 99%

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Low‐profile full‐metal‐rimmed antenna with less nonground portion for smartphones

Rao

Jeong

Park

2018

Micro & Optical Tech Letters

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In this article, a low‐profile full‐metal‐rimmed antenna with less nonground portion for smartphones is presented. The proposed antenna with full‐metal rim is designed on FR4 substrate within the volume of 115 × 60 × 5 mm3. Metal rim is made up of FR4 substrate with interconnected conducting vias which surrounds inner system circuit board. The gap between metal rim and system ground plane is 1.5 mm and they are connected by a single ground patch. Moreover, folded monopole branches are implemented on circuit board to obtain wide bandwidth and improve impedance matching at higher bands. Therefore, proposed antenna contains a system circuit board with monopole branches and a full metal rim which serves GSM (850), DCS (1800), PCS (1900), UMTS (2100), LTE (2300/2500), WiBro (2350), ISM (2400), SDM‐B (2650), and W‐LAN system operating bands. The proposed antenna also has an attractive feature of utilizing very less portion of ground clearance about 4 × 38 mm2 for placing monopole antenna and still covering a wide range of operating bands. This biggest merit makes it a potential candidate for metal rimmed smartphone applications with lesser nonground portion. A sample proposed structure has been realized on FR4 substrate to prove the design concept.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Low‐profile full‐metal‐rimmed antenna with less nonground portion for smartphones

Rao

Jeong

Park

2018

Micro & Optical Tech Letters

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“…This designed structure is compact, planar, and easy to manufacture in [11]. With the popularity of full-screen mobile phone, side-edge frame antenna is a hot topic in current research [12][13][14][15][16][17]. A MIMO antenna array printed along the long frame of the phone is presented in [12], working in the 3.5 GHz band and 5 GHz band.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Mimo Antenna Array for Compact 5g Smartphones

Wei¹,

Feng²

2020

PIER C

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An eight-port antenna system for fifth-generation (5G) multi-input multi-output (MIMO) mobile communication in smartphones is proposed, working in 3.5 GHz frequency band (3400-3600 MHz) and 5 GHz frequency band (4800-5100 MHz). The presented eight-port antenna array consists of four vertical structure antennas placed at four corners and four horizontal structure antennas etched along the two long sides of the circuit board. The height of vertical structure is only 4 mm, which is suitable for ultra-thin smartphones. The design of eight-port antenna array was fabricated and measured. According to the test results, an ideal impedance matching (superior to 10 dB), preeminent isolation (superior to 17 dB), and excellent efficiency (superior to 61%) are obtained over the 3.5 GHz frequency band and 5 GHz frequency band. In order to evaluate MIMO performance, the ergodic channel capacities and envelope correlation coefficients (ECC) are also investigated.

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“…‐ In order to cover the LTE low band (LB) below 1 GHz and the LTE middle/high band (M/HB) in 1710–2690 MHz for the smartphone, many of the reported metal‐frame antennas require a long metal‐frame section about or greater than the short‐edge length of the smartphone. This makes their radiating metal‐frame sections necessary to occupy the whole short edge of the smartphone and some of them even extend to the 2 long side edges thereof . The required long metal‐frame section for the LTE antennas causes great challenges in accommodating more metal‐frame antennas for the multi‐input multi‐output (MIMO) operation such as the 2 × 2 LTE LB MIMO and the 4 × 4 LTE M/HB MIMO operations.…”

Section: Introductionmentioning

confidence: 99%

Self‐decoupled compact metal‐frame LTE MIMO antennas for the smartphone

Wan

Chen

2018

Micro & Optical Tech Letters

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Two self‐decoupled, closely‐spaced, metal‐frame LTE MIMO antennas with compact frame lengths to fit in the short edge of the metal‐framed smartphone are presented. The 2 MIMO antennas include a first antenna covering the LTE low band (LB) in 824–960 MHz and LTE middle/high band (M/HB) in 1710–2690 MHz and a second antenna covering the LTE M/HB in 1710–2690 MHz. With a small ground clearance of 5 mm, the first antenna uses a radiating metal frame (frame 1) of length 47 mm to cover the LTE L/M/HB, while the second antenna uses a radiating metal frame (frame 2) of 23.4 mm for the LTE M/HB coverage. In addition, frames 1 and 2 are closely spaced with a gap of 2 mm only. Wideband decoupling between the 2 antennas for the 2 × 2 MIMO operation in the LTE M/HB is obtained with frame 2 serving as an inherent decoupling structure. That is, frame 2 not only functions as a radiator of the second antenna but also serves as a decoupling structure to attract the surface currents on the system ground plane which causes the coupling of the 2 antennas. Applications of applying another 2 MIMO antennas at the opposite short edge of the smartphone for the 4 × 4 LTE M/HB and 2 × 2 LTE LB MIMO operations are also addressed.

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Multiband Full-Metal-Rimmed Antenna Design for Smartphones

Cited by 18 publications

References 9 publications

Low‐profile full‐metal‐rimmed antenna with less nonground portion for smartphones

Low‐profile full‐metal‐rimmed antenna with less nonground portion for smartphones

Dual-Band Mimo Antenna Array for Compact 5g Smartphones

Self‐decoupled compact metal‐frame LTE MIMO antennas for the smartphone

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