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Proceedings ArticleDOI

Antenna for Handheld DVB Terminal

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TLDR
In this article, a broadband planar antenna structure for a DVB-H receiver is presented, which is based on the compact coupling element antenna structure that was earlier applied for GSM systems.
Abstract
For the reception of terrestrial television, traditionally Yagi or whip antennas are used. Due to their large size they cannot be used in the reception of digital television on handheld devices (DVB-H), which operate at the frequency band 470 – 702 MHz. The DVB-H system is under development and small internal antenna solutions for handheld devices are not yet available. Due to the long wavelengths, any antenna placed inside a portable terminal will be electrically small. The antenna volume is the fundamental factor determining its performance. With traditional microstrip antennas such as PIFAs the required bandwidth could not be obtained inside a pocket-size terminal. Therefore, a broadband planar antenna structure for a DVB-H receiver is presented in this paper. The antenna structure is based on the compact coupling element antenna structure [1] that was earlier applied for GSM systems [2].

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Citations
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Journal ArticleDOI

Electrically Tunable Antenna Design Procedure for Mobile Applications

TL;DR: In this article, a low-loss tunable digital video broadcasting-handheld (DVB-H) antenna has been designed and fabricated to cover the DVB-H band (470-702 MHz) with a return loss below 7 dB.
Proceedings Article

More than 20 antenna elements in future mobile phones, threat or opportunity?

TL;DR: In this article, the authors discuss the issues in antenna design for future mobile communications terminals caused by the addition of more and more antennas into the devices, which can be either a threat or an opportunity depending on the viewpoint of e.g. a terminal manufacturer or an antenna manufacturer.
Patent

Wireless Portable Device Including Internal Broadcast Receiver

TL;DR: In this article, a wireless portable device for radio communication, consisting of at least one antenna element, one ground plane and one matching network, was described, where the ground plane was tuned around two different central frequencies within a frequency band, and a switch was used to selectively connect at least two antenna elements to a radio frequency communication circuitry.
Journal ArticleDOI

Compact varactor-tuned meander line monopole antenna for DVB-H signal reception

TL;DR: In this paper, a compact varactor-tuned meander line monopole antenna for DVB-H signal reception is presented, which has an omnidirectional radiation pattern and covers the frequency range with requisite impedance bandwidth and gain level.
Journal ArticleDOI

Effect of the User's Hands on the Operation of Lower UHF-Band Mobile Terminal Antennas: Focus on Digital Television Receiver

TL;DR: In this article, the effect of the user's hands on the performance of lower UHF-band antennas in handheld terminals was investigated by applying finite-difference time-domain simulations.
References
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Journal ArticleDOI

Fundamental limitations in antennas

R.C. Hansen
TL;DR: In this article, four fundamental limitations in antennas have been identified in the areas of: electrically small antennas, super-directive antenna, superresolution antennas, and high-pin antennas.
Journal ArticleDOI

Resonator-based analysis of the combination of mobile handset antenna and chassis

TL;DR: In this paper, the performance of the mobile phone handset antenna-chassis combination is analyzed based on an approximate decomposition of the waves on the structure into two resonant wavemodes: the antenna-element wavemode and the chassis wavemode.
Journal ArticleDOI

An impedance-matching technique for increasing the bandwidth of microstrip antennas

TL;DR: In this article, the authors proposed broadband impedance matching as a natural way to increase the bandwidth of conventional microstrip patch antennas and found that by using an optimally designed impedance-matching network, the bandwidth can be increased by a factor of at least 3.9, the exact value depending on the degree of matching required.
Book

Radio Engineering for Wireless Communication and Sensor Applications

TL;DR: In this paper, the authors present an introduction to radio waves and radio engineering fundamentals of electromagnetic fields transmission lines and waveguides impedance matching microwave circuit theory passive transmission line and waveguide devices resonators and filters circuits based on semiconductor devices antennas propagation of radio waves radio system applications biological effects and safety standards.
Proceedings ArticleDOI

Compact antenna structures for mobile handsets

TL;DR: The measurement results suggest that the compact antenna structure studied in this paper has great potential for use in mobile handsets.
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