Integrated internal PIFA for UMTS operation of clamshell mobile phones

Su, Saou‐Wen

doi:10.1002/mop.21045

Cited by 9 publications

(6 citation statements)

References 3 publications

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“…This proposed integration design allows no isolation distance required between the internal patch antenna and nearby electronic components. In addition, the proposed U-shaped shielding metal case is different from the simple shielding metal case reported in [5][6][7][8]. The internal patch antenna fits well within the dented portion of the U-shaped shielding metal case.…”

Section: Introductionmentioning

confidence: 93%

“…The proposed EMC internal patch antenna is integrated with a U-shaped shielding metal case, which provides a coupling-free space for accommodating the electronic components such as the RF modules/ circuitry and battery in the mobile device [5][6][7][8]. This proposed integration design allows no isolation distance required between the internal patch antenna and nearby electronic components.…”

Section: Introductionmentioning

confidence: 99%

“…To tackle filter instability, the lumped and transversal filter can be used, but it also exhibits poor noise performance [7]. In order to elevate the dynamic range of the above transversal filter, its noise performance was studied in [8], and a suppression scheme based on source-degeneration inductors was proposed in [9]. However, a filter systemat design which considers noise reduction is not yet developed.…”

Section: Introductionmentioning

confidence: 99%

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EMC internal patch antenna integrated with a U‐shaped shielding metal case for mobile device application

Chen²,

Yang³

2006

Micro & Optical Tech Letters

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served). In this case, a uniform grid does not make a good approximation of the near-field components. Some local near-field variations are not taken into account. On the contrary, our technique conserves wavelet coefficients that traduce these variations. This technique can be viewed as a kind of adaptive mesh that is refined where the spatial variations of the near-field are not negligible. CONCLUSIONIn this paper, we have presented an efficient technique to compress the near-field data used to compute radiated fields. This technique optimizes memory storage. Indeed, compression rates up to 99% were obtained for the UWB antenna with good accuracy in farfield radiation patterns. Based on this example, the utility of keeping wavelet coefficients has been validated. ACKNOWLEDGMENTSThis work was supported by France Télécom R&D, contract no. 46129586. (UMTS, 1920 -2170 operation is studied. EMC INTERNAL PATCH ANTENNA INTEGRATED WITH A U-SHAPED SHIELDING METAL CASE FOR MOBILE DEVICE APPLICATION

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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EMC internal patch antenna integrated with a U‐shaped shielding metal case for mobile device application

Chen²,

Yang³

2006

Micro & Optical Tech Letters

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“…For practical applications in mass production, the two vertical shorting and two vertical feeding portions of the antenna can be treated as the four vertical leads (or pins) of a DIP component, which allows the antenna to be mounted on the PCB by through‐hole soldering. Compared with the conventional PIFA that has one feeding and one shorting portions [13–15], the proposed design structure is very attractive because it is beneficial to antenna‐component mechanical reliability. In this design, the width of the four vertical portions was set to 2 mm.…”

Section: Proposed Two‐in‐one Pifamentioning

confidence: 99%

Highly integrated, two‐in‐one, metal‐plate PIFA for 2.4‐GHz module applications

Lee

2012

Micro & Optical Tech Letters

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A novel, two‐in‐one, planar inverted‐F antenna (PIFA) having two signal feeding ports to operate in the 2.4 band for wireless module applications is proposed. The PIFA was of a symmetrical structure and can be fully integrated into the printed circuit board (PCB) of the module by through‐hole soldering. The design was comprised of two sub‐antennas of identical size and had two shorting portions linked by a horizontal strip. This structure allows the antenna to be stamped from one metal plate only at low cost and surface mountable as a dual‐in‐line package (DIP) component with four leads. Further, by incorporating a decoupling, neutralization line shunted at around the two shorting portions, the antenna port isolation less than −20 dB over the 2.4 GHz band can be achieved. The radiating strip of the PIFA mainly extended along the edge of the PCB, and the neutralization line in this study occupied very little board space. Details of the design prototypes are described and discussed in the article. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2433–2438, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27071

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“…In recent years, the folder-type mobile phone or clamshell mobile phone [1][2][3][4][5][6][7][8][9] is increasingly becoming attractive for wireless users. It is because this kind of mobile phone is usually equipped with a large display, making it convenient for performing multimedia functions.…”

Section: Introductionmentioning

confidence: 99%