DVB-H Antenna Design Using Folder-Type Chassis and Coupling Element on a Ferrite

Rhyu, Hanphil; Jung, Chang Won; Byun, Joonho; Park, M.; Chung, Young-Seek; Kim, T.; Lee, B.

doi:10.1109/lawp.2009.2020311

Cited by 15 publications

(13 citation statements)

References 9 publications

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“…Nevertheless, the antenna usefulness was restricted to the DVB-H application [6]. In [7], a DVB-H antenna was realized by combining a coupling element and a folder-type mobile phone chassis. The antenna utilized the chassis as a main radiator, and the compact coupling element was loaded on a ferrite without a matching circuit.…”

Section: Introductionmentioning

confidence: 99%

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Magneto Dielectric-Laden Miniaturized Wideband Meander Line Antenna for Mobile Devices

Luadang

Senathong

Phongcharoenpanich

2018

International Journal of Antennas and Propagation

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This research presents a miniaturized wideband meander line antenna (MLA) using a magneto dielectric (MD) material for mobile device applications. The proposed MLA attached the lower and upper ground planes of the folder-type chassis, connected electrically by grounding strip. The MD material (ECCOSORB MF-124) was subsequently loaded onto the coupling element area of the MLA. The MD-laden MLA was ultracompact (10 mm × 25 mm × 1 mm), with the electrical size of 0.015λ × 0.039λ × 0.0015λ at 470 MHz. The surface current distribution was simulated to determine the optimal parameters of the MD-laden MLA. To verify, a prototype antenna was fabricated and the experiments were performed. The measured impedance bandwidth (S11<−6 dB) covered the frequency range of 467–1012 MHz (73.6%), with an omnidirectional radiation pattern. The radiation efficiency was in excess of 90%, rendering it suitable for the DVB-H/LTE13/GSM850/900 applications.

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Section: Introductionmentioning

confidence: 99%

“…Some antennas in the previous works can accept a −4.5 dB reflection level [9]. From open literature, most mobile device antennas are designed using |S 11 | < −6 dB criteria [1,3,4,[7][8][9][10]. In [10], the authors proposed a planar meander monopole antenna for multiband wireless communication using parasitic strips and a sleeve feed.…”

Section: Introductionmentioning

confidence: 99%

Magneto Dielectric-Laden Miniaturized Wideband Meander Line Antenna for Mobile Devices

Luadang

Senathong

Phongcharoenpanich

2018

International Journal of Antennas and Propagation

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“…DTV signal reception has thus become very attractive for applications in many devices such as notebooks, tablet PC and vehicles. For this reason, a simple antenna as a transducer between the DTV transceiver and the propagating medium is very desirable if it could operate at DTV bands [2].Several antennas used in DTV reception have been proposed, such as an antenna with a multiple-structure transmission line [3] and an antenna structure using the chassis of a portable TV [4][5].…”

Section: Introductionmentioning

confidence: 99%

A novel monopole antenna for digital television receiving application

Fang

Luo

et al. 2012

Isape2012

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A wideband operating antenna for digital television (DTV) in the 530-880 MHz band is presented. The proposed antenna has a planar rectangular radiating patch, in which a bended slit is inserted. The bended slit separates the rectangular patch into three subpatches. The defect ground structure is used for size reduction and impedance matching. The simulation results indicate that the proposed antenna is applicable to mobile and digital television (DTV) broadcast signal reception.

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“…In general, these circuits can also lead to a degree of insertion loss and system complexity. The antennas, with additional matching circuits, have been proposed [6,7], but the voltage standing wave ratio (VSWR) of the antennas is relatively large (6:1 VSWR). By the way, due to being equipped with a large display, the folder-type mobile phone [8,9] is very suitable for the users using the multimedia function.…”

Section: Introductionmentioning

confidence: 99%

Internal dual‐antenna in the folder‐type mobile phone for DVB‐H and 3G applications

Zuo

Yin

Zhang

et al. 2010

Micro & Optical Tech Letters

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switching the polarization to /-direction. This is because the middle plane now behaves like a virtual ground supporting strong electric fields perpendicular to the x-z plane. The existence of the virtual ground near the antenna elements also obstructs an effective radiation. The /-polarization average gain drops to À6.6 dBi with a smaller cross-polarization ratio of 3.9 dB.The Envelope Correlation Coefficient (ECC) representing the amount of correlation between signals received through the two antenna feeds could be calculated from the measured 3-D radiation patterns [2]. The ECC calculated at several frequency points across the LTE band is less than 0.05. This is a clear improvement from the ECC of around 0.5 measured with the separatedfeed network. The diversity gain of a dual-antenna system estimated from the antenna efficiency, and the ECC indicates the increased amount of received power through communication channel with respect to the stand-alone antenna. The diversity gain is defined at the 10-percent level of the cumulative power distribution [3]. Figure 5 shows the diversity gain for the two feed networks compared with the stand-alone antenna with an antenna efficiency of 70%. The estimated peak diversity gains are 1.2 and 2.5 dB for the separated and the even-odd mode feed networks, respectively. CONCLUSIONFull set of experiments on a practical dual-antenna handset system operating at 755 MHz are performed to investigate the effectiveness of an even-odd mode feed network. The estimated diversity gain with the even-odd mode feeds improves to 2.5 dB from 1.2 dB obtained with separated feeds. The diversity gain of an ideal dual-antenna system is expected to reach 5.6 dB when the original stand-alone antenna efficiency is maintained, and the correlation between the radiation patterns is totally removed. However, for compact antenna system where the two antennas are placed very close together, it is difficult to obtain a high efficiency for the odd mode unless the antenna system is completely loss-free. Our fabricated even-odd mode feed network still outperforms the regular separated-feed network by eliminating the correlation in radiation patterns.ABSTRACT: A dual-antenna system that consists of a planar meander monopole antenna and a planar inverted-F antenna (PIFA) in the folder-type mobile phone is proposed. By using the planar monopole type radiating element constructed with meander strips, the monopole antenna provides a degree of miniaturization while retaining a wide impedance bandwidth of

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DVB-H Antenna Design Using Folder-Type Chassis and Coupling Element on a Ferrite

Cited by 15 publications

References 9 publications

Magneto Dielectric-Laden Miniaturized Wideband Meander Line Antenna for Mobile Devices

Magneto Dielectric-Laden Miniaturized Wideband Meander Line Antenna for Mobile Devices

A novel monopole antenna for digital television receiving application

Internal dual‐antenna in the folder‐type mobile phone for DVB‐H and 3G applications

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