A capacitively loaded PIFA for compact mobile telephone handsets

Rowell, Corbett; Murch, R.D.

doi:10.1109/8.575634

Cited by 288 publications

(109 citation statements)

References 10 publications

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“…It has also been well known that the performance, especially the bandwidth enhancement, is largely defined by the combined behavior of the antenna and the phone chassis. In many published small-antenna designs the antenna is mounted on a phone chassis, and from the large bandwidths obtained it can be assumed that the effect of the chassis is significant [10,11], however, the effect of the chassis is usually not analyzed. For fairly large portable radios, the effect of the dimensions of the chassis on the bandwidth was studied in [12].…”

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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“…By contrast, in this work, the stacked patch antenna when reconfigured using PIN diode switches operates as a planar inverted-F antenna [25][26][27][28] at 2.45 GHz and supports data communication between a sensor and a control station. And when reconfigured at a second frequency (5.8 GHz) works as a high gain efficient rectenna that can receive wireless power to charge a sensor battery.…”

Section: Introductionmentioning

confidence: 99%

A Reconfigurable Stacked Patch Antenna for Wireless Power Transfer and Data Telemetry in Sensors

Yang¹,

Islam²,

Dougal³

et al. 2012

PIER C

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Abstract-A reconfigurable stacked patch antenna is introduced for wireless power reception and data telemetry application in sensors. The proposed antenna operates at 5.8 GHz with 9.4 dBi gain and 7.6% bandwidth. At a lower frequency 2.45 GHz the antenna operates as a planar inverted-F antenna (PIFA) with 3.3 dBi gain and 2.0% bandwidth. Switching between the two regimes of operation is achieved using PIN diodes. It is proposed that the antenna can be used for wireless power reception in sensors at 5.8 GHz and for data telemetry in between a sensor and a control station at 2.45 GHz. The wireless power reception ability of this antenna was tested and verified by developing a high efficiency schottky diode rectifying circuit. The RFto-DC conversion efficiency was 85% for an input power density level of 1 mW/cm 2 .

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“…The quality of a diversity antenna system is measured using the envelope correlation coefficient [1], [32], [33] of two signals which can be characterized by the complex correlation coefficient [33] with , where can be found from the radiation patterns of the antenna elements and the statistics of the channel or from the 2 The smaller the number, the weaker the mutual coupling, the strongest being S = 0 dB. .…”

Section: Dual Planar Integrated Inverted F-antenna Diversity Systemmentioning

confidence: 99%

A New Class of Miniature Embedded Inverted-F Antennas (IFAs) for 2.4 GHz WLAN Application

Azad

Ali

2006

IEEE Trans. Antennas Propagat.

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Abstract-A new class of miniature printed embedded inverted-F antennas are proposed for operation in the 2.4-2.485 GHz wireless local-area network band. One of the proposed antennas on FR4 substrate (dielectric constant = 4.4) measures 9.2 mm by 4.1 mm and has a bandwidth of 3.5%. The peak gain of this antenna is 1.4 dBi. An overall size reduction of 70% is achieved compared to a conventional inverted-F antenna. Effects of dielectric loss tangent and material conductivity on the bandwidth and efficiency of these antennas are also investigated. Finally, two embedded antenna elements are analyzed to demonstrate the feasibility for a decoupled antenna pair consisting of switched and combining diversity schemes.

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A capacitively loaded PIFA for compact mobile telephone handsets

Cited by 288 publications

References 10 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

A Reconfigurable Stacked Patch Antenna for Wireless Power Transfer and Data Telemetry in Sensors

A New Class of Miniature Embedded Inverted-F Antennas (IFAs) for 2.4 GHz WLAN Application

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