DOAJ Open Access 2018

High-Efficiency Crossed-Loop 4G LTE Antenna for All Display Metal-Rimmed Smartphones

Jaehyun Choi Woonbong Hwang Chisang You Byungwoon Jung Wonbin Hong

Abstrak

A symmetrically crossed-loop antenna featuring very high radiation efficiency across the entire LTE frequency bands for metal-rimmed smartphones with only 2 mm ground clearance is proposed, analyzed, and verified. The employment of even and odd modes is utilized to achieve wide bandwidth across 698–960 MHz (low-frequency spectrum), 1710–2170 MHz (middle-frequency spectrum), and 2300–2690 MHz (high-frequency spectrum). Empirical analysis confirms the crossed-loop topology results in a 180° phase shift of the electric current distribution on the ground plane, resulting in enhancement of the radiation resistance. As a result, the devised LTE antenna exhibits more than 48% to 75% total system efficiency across the entire band of interest, which is the highest efficiency reported in literature for metal-rimmed smartphones with extremely small ground clearance.

Topik & Kata Kunci

Electrical engineering. Electronics. Nuclear engineering Cellular telephone services industry. Wireless telephone industry

Penulis (5)

Jaehyun Choi

Woonbong Hwang

Chisang You

Byungwoon Jung

Wonbin Hong

Format Sitasi

APA MLA BibTeX

Choi, J., Hwang, W., You, C., Jung, B., Hong, W. (2018). High-Efficiency Crossed-Loop 4G LTE Antenna for All Display Metal-Rimmed Smartphones. https://doi.org/10.1155/2018/8070953

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Informasi Jurnal

Tahun Terbit: 2018
Sumber Database: DOAJ
DOI: 10.1155/2018/8070953
Akses: Open Access ✓