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Journal ArticleDOI

A New Compact Hexaband Internal Antenna of the Planar Inverted F-Type for Mobile Handsets

TL;DR: In this article, a planar inverted F-antenna was proposed for DCS/PCS/IMT-2000/UMTS/ISM/WLAN applications, with a small size of 19 times 10 times 5 mm3.
Abstract: This letter presents a novel compact internal antenna of the planar inverted F-antenna type. The proposed antenna, with the small size of 19 times 10 times5 mm3 , can be easily placed in practical handsets. The return loss and radiation patterns from the proposed antenna are presented. The measured bandwidth of the proposed antenna (S11 < -9 dB) can cover 610 MHz (1600-2210 MHz) in the lower band and 1170 MHz (4960-6130 MHz) in the upper band. These operating frequencies are very attractive features for DCS/PCS/IMT-2000/UMTS/ISM/WLAN bands handset applications. Numerical simulation and experiment results of the proposed antenna are investigated.
Citations
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Journal ArticleDOI
TL;DR: In this article, a planar inverted-F antenna (PIFA) for personal communication handset applications is presented, which operates at following frequency bands: DCS, PCS, UMTS, WiBro, WiMax and/or WiBro phase 3, and WLAN.
Abstract: This letter presents a compact tunable internal planar inverted-F antenna (PIFA) for personal communication handset applications. The antenna operates at following frequency bands: DCS, PCS, UMTS, WiBro, WiMax and/or WiBro phase 3, and WLAN. A single varactor diode is attached to the antenna in a proper location between the main patch and supplemental patch in order to get tuning over the wide frequency range around 2 GHz. The antenna was designed and optimized by using CST microwave studio program. Measured return losses (S11) and radiation patterns of the antenna were carried on Anritsu 37377C Vector Network Analyzer and in standard anechoic chamber room. The surface current distributions, the co-polarization and cross-polarization patterns of the antenna are given to demonstrate the antenna's performance.

29 citations

Journal ArticleDOI
TL;DR: In this article, a monopole type penta-band internal antenna using a parasitic element is proposed, with the small size of 37 × 8 × 35 mm3, which can provide sufficient bandwidth to cover the GSM(850/900), DCS, PCS, and WCDMA bands.
Abstract: This letter presents a monopole type penta-band internal antenna using a parasitic element The proposed antenna, with the small size of 37 × 8 × 35 mm3 can provide sufficient bandwidth to cover the GSM(850/900), DCS, PCS, and WCDMA bands The measured impedance bandwidth (VSWR ≤ 3) of the proposed antenna can cover 250 MHz in the lower frequency band and 1082 MHz in the upper frequency band Ansoft HFSS (High Frequency Structure Simulator) is employed to analyze the proposed antenna in the design process and to compare it with the experimental results The measured peak gains of the proposed antenna range from 121 to 248 dBi for the GSM(850/900), DCS, PCS, and WCDMA bands © 2008 Wiley Periodicals, Inc Microwave Opt Technol Lett 50: 3045–3048, 2008; Published online in Wiley InterScience (wwwintersciencewileycom) DOI 101002/mop23884

11 citations

Journal ArticleDOI
TL;DR: In this article, a low profile internal planar monopole (PM) antenna is proposed, which consists of a rectangular PM, 10 × 20 mm2, loaded with a pair of parallel small thin plates placed on the two radiating sides of the PM antenna.
Abstract: A novel low profile wideband internal planar monopole (PM) antenna is proposed. It consists of a rectangular planar monopole, 10 × 20 mm2, loaded with a pair of parallel small thin plates, 8 × 12 mm2, placed on the two radiating sides of the PM antenna. The proposed antenna has two ground planes. A small horizontal ground, 9 × 20 mm2, that holds the PM antenna (making the overall volume of the antenna element 9 × 20 × 23 mm3) and the vertical ground, 50 × 80 mm2 that can be treated as the ground plane of the circuit board of a mobile phone. A prototype of the proposed antenna has been fabricated and tested. Its operating bandwidth with S 11 lower than −10 dB is 1.66–7.35 GHz, which covers the digital communication system (DCS 1.72–1.88 GHz), personal communication system (PCS 1.85–1.99 GHz), universal mobile telecommunication system (UMTS 1.92–2.17 GHz), wireless local area network (WLAN), which usually operate in the 2.4 GHz (2.4–2.484 GHz) and 5.2/5.8 GHz (5.15–5.35 GHz/5.725–5.825 GHz) and worldwide in...

7 citations

Proceedings ArticleDOI
26 Mar 2012
TL;DR: In this paper, the authors present an investigation on the currents running through the source, the short and the capacitor of a tunable Planar Inverted F antenna (PIFA) for hand-held devices.
Abstract: Tunable antennas are a promising way to overcome bandwidth limitations for the new communication standards. Nevertheless they become very lossy at low frequencies. This paper presents an investigation on the currents running through the source, the short and the capacitor of a tunable Planar Inverted F Antenna (PIFA) for hand-held devices. Simulations suggest that the losses due to the currents running through the external tuning component depend on its location and value. Therefore it should be placed the furthest away from the location of the source and the short in a PIFA design and have small capacitances.

7 citations

Journal ArticleDOI
TL;DR: In this paper, a planar monopole antenna suitable for slim mobile handsets applications is presented, which consists of coupling strip, shorted radiating strip, and parasitic meandered lines.
Abstract: In this paper, a compact wideband planar monopole antenna suitable for slim mobile handsets applications is presented. The proposed antenna operates over LTE700/GSM800/900 (0.742 GHz-1.36 GHz), GPS L1/GSM1800/1900/UMTS/IMT2100/Wi-Fi/LTE2300/2500 (1.475 GHz- 2.7 GHz), and WiMAX (3.4 GHz-3.72 GHz) based on reflection coefficient better than − 6d B. It consists of coupling strip, shorted radiating strip, and parasitic meandered lines. The wider impedance bandwidth is achieved by placing the meandered line as parasitic element on the back side of the coupling and shorted radiating elements. With this configuration, the antenna gives extremely wide impedance bandwidth which covers all the required frequency bands of the smart mobile phones. To investigate the proposed antenna, S-parameters, surface current distributions, and radiation performances are studied. To check the robustness of the proposed antenna, investigation is also carried out in the vicinity of the mobile environment. Further, specific absorption rate (SAR) is calculated on the human head and found to be below 0.535 W/kg. The simulated and measured results are found in close agreement.

6 citations

References
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Book
06 Jan 2003
TL;DR: Very low profile monopoles for Internal Mobile Phone Antennas for WLAN applications are discussed in this paper, along with the integration of antennas for different operating Bands and a summary of acronyms.
Abstract: Preface. Introduction and Overview. PIFAs for Internal Mobile Phone Antennas. Very-Low-Profile Monopoles for Internal Mobile Phone Antennas. Base Station Antennas for Cellular Communication Systems. Antennas for WLAN Applications. Dielectric Resonator Antennas for Wireless Communications. Integration of Antennas for Different Operating Bands. Appendix: Summary of Acronyms. Index.

1,021 citations


"A New Compact Hexaband Internal Ant..." refers background in this paper

  • ...To satisfy these requirements, a planar inverted F-antenna (PIFA) [1]–[3] is the most attractive candidate for mobile handsets [4], due to its desirable features such as high-efficiency multiband behavior, moderate bandwidth, low profile, low cost, and the fact that it is lightweight and less prone to breakage compared to corresponding external antennas....

    [...]

Journal ArticleDOI
TL;DR: In this article, a capacitively loaded planar inverted-F antenna (PIFA) was proposed and studied, and it was found that the capacitive load reduced the resonance length of the PIFA from /spl lambda/4 to less than /spl ε/S.
Abstract: A capacitively loaded planar inverted-F antenna (PIFA) is proposed and studied. It is found that the capacitive load reduces the resonance length of the PIFA from /spl lambda//4 to less than /spl lambda//S. A design with a bandwidth of 178 MHz centered at 1.8 GHz is provided to demonstrate that compact antennas for mobile telephone handsets can be constructed using this approach. The finite-difference time-domain (FDTD) method is used in the study and experimental verification is also provided.

376 citations


"A New Compact Hexaband Internal Ant..." refers background in this paper

  • ...REFERENCES [1] C. R. Rowell and R. D. Murch, “A capacitively loaded PIFA for compact mobile telephone handsets,” IEEE Trans....

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  • ...To satisfy these requirements, a planar inverted F-antenna (PIFA) [1]–[3] is the most attractive candidate for mobile handsets [4], due to its desirable features such as high-efficiency multiband behavior, moderate bandwidth, low profile, low cost, and the fact that it is lightweight and less prone to breakage compared to corresponding external antennas....

    [...]

  • ...In this paper, we present a novel PIFA design for the desired hexaband operation [5] of DCS/PCS/IMT-2000/UMTS/ISM/ WLAN applications....

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  • ...The PIFA is made up of a ground plane, a radiating patch, and a short line, which results in a quarter-wavelength resonator....

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  • ...Digital Object Identifier 10.1109/LAWP.2007.900958 which enhance the multiple impedance bandwidth [6] of the initial PIFA structure....

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Journal ArticleDOI
TL;DR: In this article, the authors present the results concerning the input return loss, radiation characteristics and efficiency of novel internal, planar, multiband patch antennas for multistandard mobile phone devices.
Abstract: The advent of new, multistandard mobile phone devices is an important challenge for antenna designers, as they have to implement integrated antennas with multiband operation within a volume that is rapidly shrinking. In the paper, research results concerning the input return loss, radiation characteristics and efficiency of novel internal, planar, multiband patch antennas are presented.

125 citations


Additional excerpts

  • ...hexaband operation [5] of DCS/PCS/IMT-2000/UMTS/ISM/ WLAN applications....

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Proceedings ArticleDOI
01 Jan 2001
TL;DR: In this article, a tripleband antenna for GSM/DCS/PCS with a parasitic element to enlarge the bandwidth has been proposed based on the analysis of the board effect on the bandwidth of integrated antennas for mobile phones.
Abstract: Based on the investigation of the board effect on the bandwidth of integrated antennas for mobile phones a concept for a tripleband antenna suitable for GSM/DCS/PCS is developed. The antenna concept comprises a parasitic element to enlarge the bandwidth. The performance of the antenna is analyzed by means of numerical simulations based on the FDTD method.

94 citations


"A New Compact Hexaband Internal Ant..." refers background in this paper

  • ...To satisfy these requirements, a planar inverted F-antenna (PIFA) [1]–[3] is the most attractive candidate for mobile handsets [4], due to its desirable features such as high-efficiency multiband behavior, moderate bandwidth, low profile, low cost, and the fact that it is lightweight and less prone to breakage compared to corresponding external antennas....

    [...]

Journal ArticleDOI
TL;DR: In this article, a planar inverted-F antenna with a single feed is presented for triple-frequency operation, which shows characteristics of near-omnidirectional radiation patterns with minimal hand effects.
Abstract: A novel meandered planar inverted-F antenna with a single feed is presented for triple-frequency operation. Using two shorting strips, good impedance matching is achieved in three bands. This compact low-profile design shows characteristics of near-omnidirectional radiation patterns with minimal hand effects, which is preferable for application in wireless communications. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 58–60, 2000.

79 citations