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- Son Trinh-Van, Youngoo Yang, Kang-Yoon Lee, Keum-Cheol Hwang
- Sensors
- 2016

The design of a wideband circularly polarized pixelated dielectric resonator antenna using a real-coded genetic algorithm (GA) is presented for far-field wireless power transfer applications. The antenna consists of a dielectric resonator (DR) which is discretized into 8 × 8 grid DR bars. The real-coded GA is utilized to estimate the optimal heights of the… (More)

- Son Trinh-Van, Youngoo Yang, Kang-Yoon Lee, Keum-Cheol Hwang
- Sensors
- 2016

This paper presents the design of a wideband circularly polarized antenna using a multiple-circular-sector dielectric resonator (DR). The DR is composed of twelve circular-sector DRs with identical central angles of 30 ∘ but with different radii. A genetic algorithm is utilized to optimize the radii of the twelve circular-sector DRs to realize wideband… (More)

- R B A Boroomandisorkhabi, F B Sadeghzadeh, E Zarrabi, Ghahramani, R M A Rahimi, Z Zarrabi +47 others
- 2015

The current distribution of the second antenna at 3.7 GHz is presented by Figure 10(f). The simple Slot structure as shown in Figure 2(b) has wide bandwidth, but it is not covering WLAN upper and GSM 1800 so when the ring structure is implemented, the current will distribute on ring and for lower frequencies also as shown in Figure 10(a), the maximum… (More)

- Son Trinh-Van, Gina Kwon, Keum-Cheol Hwang, Yong Bae Park
- IEICE Electronic Express
- 2013

A uniplanar, compact electromagnetic band-gap (UC-EBG) structure based on modified semi-Spidron fractal and meander-line strip (SFM-EBG) patterning is proposed. The semi-Spidron frac-tal geometry significantly increases the equivalent capacitance, whereas meander-line strips increase the equivalent inductance; as a result, the proposed design can be used to… (More)

- Son Trinh-Van, Keum-Cheol Hwang
- IEICE Electronic Express
- 2012

A meandered uniplanar compact electromagnetic band-gap structure is proposed. Meandered microstrip lines between adjacent cells are used to increase the equivalent inductance. As a result, the dimension of the proposed EBG structure is more compact and its frequency band-gap is wider than that of the conventional uniplanar EBG structure. Two patch arrays… (More)

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