scispace - formally typeset
Search or ask a question
Author

Min-Seok Han

Bio: Min-Seok Han is an academic researcher from LG Electronics. The author has contributed to research in topics: Antenna tuner & Loop antenna. The author has an hindex of 2, co-authored 2 publications receiving 10 citations.

Papers
More filters
Proceedings ArticleDOI
09 Jul 2006
TL;DR: In this paper, a five-band planar inverted-F antenna (PIFA) for mobile phones is presented, where helical feed, folded patch, and two long slots are employed for compact size and wide bandwidths.
Abstract: A novel five-band planar inverted-F antenna (PIFA) for mobile phones is presented. In this antenna, helical feed, folded patch, and two long slots are employed for compact size and wide bandwidths. Specially, the two slots are effectively used to design low/high resonant frequencies independently. The designed antenna with size of 38 times 12 times 7 mm3 covers DCN (824-894 MHz), GSM (880-960 MHz), DCS (1710-1880 MHz), USPCS (1850-1990 MHz), and WCDMA (1920-2170 MHz) within 3.0:1 voltage standing wave ratio (VSWR). Details of the antenna as well as the measured results are described

8 citations

Proceedings ArticleDOI
01 Sep 2006
TL;DR: In this paper, a compact quad-band internal antenna for 3G mobile phone is presented, which consists of a planar antenna with U-shaped slot for high band and a vertically attached spiral monopole antenna for low band and its size is 38.0 times 9.0 mm3 (2.052 cc).
Abstract: A compact quad-band internal antenna for 3G mobile phone is presented. A novel technique which can control low/high resonant frequencies of the multi-band antenna independently is employed for easy optimization of the antenna characteristics over all frequency bands. The designed single plate antenna consists of a planar antenna with U-shaped slot for high band and a vertically attached spiral monopole antenna for low band and its size is 38.0 times 9.0 times 6.0 mm3 (2.052 cc). The measured bandwidth for S11 less than -6dB covers GSM900 (880-960 MHz), DCS1800 (1710-1880 MHz), DCS1900 (1850-1990 MHz), and UMTS (1920-2170 MHz)

2 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: A compact multiband (GSM/DCS/PCS/UMTS/Bluetoo- th/WLANs/Wi-MAX) planar monopole antenna, which contains multiple branches, is proposed in this work, which is particularly attractive for mobile devices that integrate multiple systems.
Abstract: A compact multiband (GSM/DCS/PCS/UMTS/Bluetoo- th/WLANs/Wi-MAX) planar monopole antenna, which contains multiple branches, is proposed in this work. Most wireless communication bands for consumer electronics are covered in this design. The antenna radiator comprises four resonant branches on the top surface of a PCB board and one parasitic element on its back. The antenna size is 17:5mm £ 35:7mm, and no via is needed in the fabrication process. Various techniques, such as branching, meandered lines, closed loop, capacitive coupling, parasitic elements and tapered ends, are used to enhance the antenna's bandwidth, matching and size reduction performance. Simulation and measurement show good agreement for re∞ection coe-cient. The proposed antenna is particularly attractive for mobile devices that integrate multiple systems.

80 citations

Patent
16 Nov 2009
TL;DR: In this paper, a simple, compact multi-band PIFA including two arm portions, where one arm portion is grounded at two points to form a loop, a ground plane, and a plastic carrier and housing, is presented.
Abstract: A simple, compact multi-band PIFA including two arm portions, where one arm portion is grounded at two points to form a loop, a ground plane, and a plastic carrier and housing. The antenna radiates a same signal from both arm portions, at different efficiencies according to the radiated frequency and the effective length of each arm. The antenna is made from a single standard metal sheet by cutting it and is assembled with the metal ground plane and the other plastic parts. In one embodiment, the antenna is folded into a 3D U-shape to reduce its size for use in mobile communication devices. In another embodiment, the antenna is a penta-band antenna with return loss of -6B or better and measures 40 x 8 x 8 mm or smaller.

42 citations

Journal ArticleDOI
J. Lee1, Youngje Sung1
TL;DR: In this article, a compact inverted-F antenna with independent resonance control is presented, which covers the heptaband (GSM850/900/DCS/PCS/UMTS/LTE2300/2500) for mobile handset applications.
Abstract: In this letter, a compact inverted-F antenna (IFA) with independent resonance control is presented. The proposed antenna covers the heptaband (GSM850/900/DCS/PCS/UMTS/LTE2300/2500) for mobile handset applications. The proposed structure consists of four radiating branches. Each branch operates at a quarter-wavelength mode as the fundamental resonant mode, and the proposed antenna has quintuple resonant frequency (f 1 , f 2 , f 3 , f 4 , and f 5 ) characteristics. One remarkable feature of the proposed antenna is that each of the four resonant frequencies can be controlled independently without affecting the other four resonant frequencies (f 5 : harmonic of the fundamental frequency f 1 ).

25 citations

Journal ArticleDOI
TL;DR: In this paper, a metallized dielectric loading technique using a low-cost FR4-type material has been implemented to achieve a small footprint of 18 × 21 mm2 instead of using expensive ceramics.
Abstract: A compact, multiband, planar, and low-profile wide- band code division multiple access (WCDMA)AVLAN antenna is presented in this letter. A metallized dielectric loading technique using a low-cost FR4-type material has been implemented to achieve a small footprint of 18 × 21 mm2 instead of using expensive ceramics. The WCDMA/WLAN antenna achieves multiband operation with good impedance matching and radiation behavior. Antenna measurements are presented to validate the simulations.

14 citations

Proceedings ArticleDOI
01 Dec 2011
TL;DR: A Planar Inverted F Antenna tuned with a fixed capacitor to the low frequency bands supported by the Long Term Evolution (LTE) technology is presented.
Abstract: This paper presents a Planar Inverted F Antenna (PIFA) tuned with a fixed capacitor to the low frequency bands supported by the Long Term Evolution (LTE) technology. The tuning range is investigated and optimized with respect to the bandwidth and the efficiency of the resulting antenna. Simulations and mock-ups are presented.

12 citations