A Compact Dual-Band PIFA for DVB-T and WLAN Applications

Caso, Roberto; D’Alessandro, A.; Serra, Andrea; Nepa, Paolo; Manara, Giuliano

doi:10.1109/tap.2012.2186261

Cited by 19 publications

(25 citation statements)

References 9 publications

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“…In [2][3][4][5][6], dual band antennas with parasitic elements to generate higher bands are proposed. The total volume occupied by these antennas is larger than the proposed compact element.…”

Section: Iirelated Workmentioning

confidence: 99%

“…Height of PIFA is 8.4 mm and the size of radiating element is 24 x 37 mm². In [4], a dual-band PIFA for DVB-T and WLAN applications with overall size of 217 x 12 mm² and height of 8 mm is proposed. The driven PIFA element acts as the primary element, governing the lowest resonant frequency, while the upper resonant frequency in the DVB-T band is controlled by the parasitic element.…”

Section: Iirelated Workmentioning

confidence: 99%

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Compact Dual Band PIFA for GPS and WiMAX

Jacob¹,

George²

2015

IJAREEIE

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ABSTRACT:A compact Planar Inverted F Antenna (PIFA) as the element for dual band operation in 1.48 GHz GPS and 3.2 GHz WiMAX band is proposed. PIFAs are quarter wavelength elements. Among various possible antennas, PIFAs have the advantages of low profile, compact size and are very suitable for present-day wireless communication application. A folded slit in the top plate is used to get the dual band operation. Comparison between two different orientations for folded slit is performed. A 50% miniaturization and gain improvement is achieved when the folded slit is near to the feed with an open end. The radiation pattern and current distribution on the PIFA are also plotted. KEYWORDS:PIFA, dual band, folded slit, miniaturization I.INTRODUCTIONMonopole antennas and helical antennas (whip antennas) were used as external antennas in early days. They are quarter wavelength elements and can have wide bandwidth. But they cause user interference because of the backward radiation. These were later replaced by internal antennas. Many applications require low profile antennas, especially portable devices such as laptops and mobile phones. Patch antennas and their derivatives are the best candidates for low profile application as internal antennas. Patch antennas are half wavelength elements. Their disadvantage of large dimension and narrow bandwidth led to the introduction of Planar Inverted-F Antenna (PIFA). PIFA have size less than quarter wavelength which is best suited as internal antennas in portable devices. But the main limitation is narrow bandwidth. By adjusting various parameters of PIFA their size can be made smaller and their bandwidth can be enhanced [1].In order to incorporate different standards into a single device, multi band and broadband antennas are required. When the operating frequencies are far apart multi band antennas are preferred over broadband because of the need of multiple filters in case of broadband. In this thesis, a single band PIFA for GPS is designed. Then the top plate is modified to obtain a dual band antenna operating at 1.5 GHz GPS and 3.3 GHz WiMAX. A folded slit structure on the top plate is used for obtaining dual band performance. Two different orientations of slits are compared. II.RELATED WORKSIn [2-6], dual band antennas with parasitic elements to generate higher bands are proposed. The total volume occupied by these antennas is larger than the proposed compact element. In [2], a slim dual-band PIFA in conjunction with Lshaped parasitic is proposed for GPS and WiMAX bands. The size of element is 100 x 24 mm² and the height is 9.8 mm. In [3], a compact dual band PIFA with two meandered metallic strips and one nearly rectangular patch to produce three resonances in the GSM and DCS band is proposed. Height of PIFA is 8.4 mm and the size of radiating element is 24 x 37 mm². In [4], a dual-band PIFA for DVB-T and WLAN applications with overall size of 217 x 12 mm² and height of 8 mm is proposed. The driven PIFA element acts as the primary element, governing the lowest resonant frequ...

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Section: Iirelated Workmentioning

confidence: 99%

Section: Iirelated Workmentioning

confidence: 99%

Compact Dual Band PIFA for GPS and WiMAX

Jacob¹,

George²

2015

IJAREEIE

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“…Thus, two drawbacks are emerging: -the antenna needs to cover a very wide input impedance bandwidth of 59%; -the free space wavelength at 470 MHz is about 60 cm, which is very large in comparison with a DVB-H receiver device, e.g., a Smartphone or a tablet. Many antennas dedicated to DVB-H reception have been investigated in [5]- [10] and some are working on the whole DVB-H band [5]- [7]. In 2012, Yonghun Cheon presented a dual band planar inverted F antenna (PIFA), covering the whole DVB-H band and having 70 mm 30 mm for overall dimensions, i.e., at 470 MHz [6].…”

Section: Introductionmentioning

confidence: 99%

Frequency Tunable Antenna Using a Magneto-Dielectric Material for DVB-H Application

Huitema

Reveyrand

Mattéi

et al. 2013

IEEE Trans. Antennas Propagat.

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Abstract-This paper presents an ultracompact antenna design suited for digital video broadcasting-handheld (DVB-H) reception devices. The DVB-H frequency band is ranging from 470 to 862 MHz and divided in 49 channels of 8 MHz. Designed to be integrated in a tablet, it is not only heavily miniaturized ( at 470 MHz), but also able to cover each channel thanks to the use of a magneto-dielectric material. The advantage of using such a material is studied and described in this paper. Moreover, the operating frequency is continuously tuned over the whole DVB-H band by the integration of a varactor diode. This varactor diode has been characterized and modeled to properly cosimulate its behavior within the antenna. Limitations in terms of accepted power by the diode are emphasizing. Finally, the antenna design, including both magneto-dielectric material and varactor diode is integrated in the DVB-H receiver device. Measurement performances are presented and discussed.Index Terms-Digital video broadcasting-handheld (DVB-H), frequency tunable antenna, magneto-dielectric material, miniature antenna, pattern diversity, varactor diode.

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“…Recently, the long-term evolution (LTE) system was introduced to afford better mobile services. In addition to this, a web access through the wireless wide area network (WLAN) could be provided a guarantee for ondemand service [1][2][3][4][5]. Due to the overall size limited for placing a mobile terminal antenna, it becomes more difficult to achieve wide bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…Such structure is not suitable for WLAN 11a (5.15-5.825 GHz) operation either. In order to obtain a compact antenna with large and multiple frequency band, many other constructions for PIFA are applied with probe feedings [1][2][3][4][5][6][7][8]. Again, in these designs, it is difficult to realize multi-band and wide band operation at the same time [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%