Multiband Folded Loop Antenna for Smart Phones

Chiu, Chien‐Wen; Chang, Chih-Hao; Chi, Yu-Jen

doi:10.2528/pier10011601

Cited by 62 publications

(44 citation statements)

References 21 publications

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“…This structure can be easily incorporated into personal communication equipment, reported in [1][2][3][4][5][6][7]. Due to these advantages, PIFA become attractive candidates in wireless communications.…”

Section: Introductionmentioning

confidence: 99%

A Compact Quad-Band Pifa by Tuning the Defected Ground Structure for Mobile Phones

Lin¹,

Tang²,

Hong³

2010

PIER B

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Abstract-The development of compact antennas plays an important role in the rapidly growing mobile communication market. This paper presents a novel design technique of the quad-band small internal antenna covering GSM-900/DCS-1800/PCS-1900/IMT-2000 bands. The innovative quad-band built-in handset antenna is developed within the limit of a 44×25×4 mm 3 volume. The following document describes a new idea of increasing operational bandwidth for the compact planar inverted F antenna (PIFA). The proposed compact antenna introduces the open-end slots in the ground plane almost all under the radiating patch. The size reduction method is attractive for practical antenna implementations. In addition, the end user's hand handling effects on the performances of the proposed antenna are studied.

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Section: Introductionmentioning

confidence: 99%

A Compact Quad-Band Pifa by Tuning the Defected Ground Structure for Mobile Phones

Lin¹,

Tang²,

Hong³

2010

PIER B

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“…In this way, it is possible to generate two signals with non-harmonical frequency ratio and with a known phase relation with the reference signal, as shown in Equations (A1) to (A8) in Appendix A. Together with the output signals of the RSOs, a sample of the reference signal is transmitted by means of a three port multi-band antenna [20][21][22][23].…”

Section: Topologymentioning

confidence: 99%

Design and Analysis of a Multi-Carrier Tx-Rx System Based on Rationally Synchronized Oscillators for Localization Applications

Fernández

Hoeye²,

Vázquez³

et al. 2011

PIER

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Abstract-In this work, a novel multi-carrier Tx-Rx system based on rationally synchronized oscillators to be used in RF-source localization applications is presented. The Tx subsystem is composed by two rationally synchronized oscillators, with different operation frequency, which share the reference signal. This signal is transmitted together with the one generated by the oscillators. In the Rx subsystem, the reference signal is provided by an oscillator which is synchronized with the received reference signal. According to the simulation results, with the proposed approach, the determination of the relative phase variation suffered by the transmitted signals, due to the propagation channel, can be achieved with an error less than 0.6 • . It is also shown that the dynamic response of the system can be optimized by properly selecting the operation point of all oscillators.

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“…Besides keeping the appearances attractive, these devices must be small not only in the plane parallel to the screen but also in the thickness direction for becoming competitive in the market. For attractiveness in appearance, internal antennas that can be completely concealed in the case of a mobile phone are now prevailing over external antennas [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. However, the trend for an upcoming mobile phone is that more components need to be installed inside to make the mobile phone more powerful yet possibly smaller in overall size.…”

Section: Introductionmentioning

confidence: 99%

A Compact Planar Hexa-Band Internal Antenna for Mobile Phone

Sze¹,

Wu²

2010

PIER

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Abstract-A planar hexa-band internal antenna designed for mobile phone applications is presented. The antenna occupying a small area of 45 × 12 mm 2 is placed on the top no-ground portion of the system circuit board with a ground-plane size of 45 × 100 mm 2 . The design begins with constructing a meandered monopole. With a parasitic and an impedance-adjustment structure subsequently added, the resulting antenna can be viewed as a printed planar inverted-F antenna with a parasitic resonant element. Two wide impedance bands can be generated by the designed antenna to support GSM 850, GSM 900, DCS, PCS, UMTS, and 2.4-GHz WLAN operations. The measurement was found to agree reasonably well with the simulation. Design procedures and rules along with the design concepts behind are all presented in detail.

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Multiband Folded Loop Antenna for Smart Phones

Cited by 62 publications

References 21 publications

A Compact Quad-Band Pifa by Tuning the Defected Ground Structure for Mobile Phones

A Compact Quad-Band Pifa by Tuning the Defected Ground Structure for Mobile Phones

Design and Analysis of a Multi-Carrier Tx-Rx System Based on Rationally Synchronized Oscillators for Localization Applications

A Compact Planar Hexa-Band Internal Antenna for Mobile Phone

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