Journal ArticleDOI
A loaded inverted‐F antenna for mobile handsets
Max J. Ammann,Linda Doyle +1 more
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TLDR
In this article, the authors describe the design, measurement, and modeling of a linear inverted-F antenna with loading to increase the impedance bandwidth, which yields an impedance bandwidth of 10% in the 1800 MHz band.Abstract:
This paper describes the design, measurement, and modeling of a linear inverted-F antenna with loading to increase the impedance bandwidth. In this case, two L-shaped wire structures are connected to the open end of the inverted-F element, yielding an impedance bandwidth of 10% in the 1800 MHz band. Measurements of return loss, impedance bandwidth, and gain are presented. The radiation pattern and polarization purity are discussed. The modeling of the antenna is based on a method of moments/GTD technique. A comparison with experimental results is presented. A comparison is also made with the popular planar inverted-F antenna. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 226–228, 2001.read more
Citations
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Journal ArticleDOI
Small planar monopole antenna with a shorted parasitic inverted-L wire for wireless communications in the 2.4-, 5.2-, and 5.8-GHz bands
Jen-Yea Jan,Liang-Chih Tseng +1 more
TL;DR: In this article, a low profile planar monopole antenna with a shorted parasitic inverted-L wire fed using a microstrip feedline for wireless communications in the wireless local-area network (WLAN) bands is studied.
Journal ArticleDOI
Compact and Multiband Dielectric Resonator Antenna With Pattern Diversity for Multistandard Mobile Handheld Devices
TL;DR: In this paper, a compact multiband antenna system using a dielectric resonator antenna (DRA) is presented, which is not only heavily miniaturized but also able to cover three frequency bands for different wireless applications (DVB-H, WiFi and WiMAX).
Journal ArticleDOI
A novel dual-band printed inverted-F antenna
TL;DR: In this paper, a dual-band printed inverted-F antenna is proposed for WLAN and HIPERLAN systems, which consists of two stacked inverted-f strips printed on a dielectric substrate, sharing a common shorting pin which short circuits the two strips to the ground plane.
Journal ArticleDOI
Coplanar waveguide‐fed folded inverted‐F antenna for UMTS application
Yen-Liang Kuo,Kin-Lu Wong +1 more
TL;DR: In this article, a folded inverted-F strip antenna printed on a dielectric substrate and fed by a coplanar waveguide is presented, with a small area of 25×8 mm2 having a 10 dB impedance bandwidth of about 20% centered at 2.0 GHz.
Journal ArticleDOI
Broadband planar inverted-L antennas
Zhi Ning Chen,M.Y.W. Chia +1 more
TL;DR: In this article, a new feeding arrangement applied to a broadband planar inverted-L antenna (PILA) is experimentally presented, which comprises a narrow strip excited by a coaxial probe and a grounded wall, which are etched onto a vertical finite-size dielectric slab.
References
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Journal ArticleDOI
EM interaction of handset antennas and a human in personal communications
TL;DR: In this article, the authors investigated the effect of the tissue location and physical model on the antenna performance and found that the head and hand absorb between 48 and 68% of the power delivered to the antenna.
Journal ArticleDOI
Performance Analysis of a Built-In Planar Inverted F Antenna for 800 MHz Band Portable Radio Units
T. Taga,Koichi Tsunekawa +1 more
TL;DR: The pattern averaging gain (PAG) method to estimate the average gain of mobile antennas in a multipath propagation environment is proposed and the antenna configuration with the PIFA element mounted on the lateral side of the radio case is found to be most suitable for portable radio units.
Journal ArticleDOI
Transmission-line missile antennas
TL;DR: In this paper, a class of protruding rocket antennas of low silhouette is analyzed in terms of an approximately equivalent circuit that consists of a shunt-driven transmission line terminated in a reactor at each end.
Journal ArticleDOI
Folded loop antenna for mobile hand-held units
TL;DR: The vertical folded loop antenna, modeled as wire and printed radiating element mounted on a conducting box, simulating a cellular telephone with and without dielectric coating, is analyzed and meets the design requirements for existing and future mobile communication systems.
Proceedings ArticleDOI
Integrated antennas for hand-held telephones with low absorption
TL;DR: A full short circuit planar inverted-F antenna (FS-PIFA) is investigated, which concentrates the current near the antenna, and has a relatively higher gain directed away from the user's head thereby reducing the losses in the human body, which is important from the point of view of efficiency and possible health hazards.
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