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2013 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

9-13 Sept. 2013

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Displaying Results 1 - 25 of 86
  • [Front cover]

    Publication Year: 2013, Page(s): 1
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  • [Copyright notice]

    Publication Year: 2013, Page(s): 1
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  • ICEAA — IEEE APWC — EMS committees

    Publication Year: 2013, Page(s):1 - 2
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  • Final program

    Publication Year: 2013, Page(s):1 - 84
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  • Winner of the ICEAA - IEEE APWC - EMS 2013 Young Scientist Award

    Publication Year: 2013, Page(s): 1
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  • Call for papers

    Publication Year: 2013, Page(s): 1
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  • Table of contents

    Publication Year: 2013, Page(s):1 - 5
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  • List of reviewers

    Publication Year: 2013, Page(s): 1
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  • Study on the appropriate dimensions and position of slots and notches in the ground plane of planar monopole handset antenna for bandwidth enhancement

    Publication Year: 2013, Page(s):2 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1853 KB) | HTML iconHTML

    A slotted ground plane structure combined with a multiband planar monopole handset antenna for bandwidth enhancement and resonant modes tuning is presented. By simply inserting intelligent modifications using slots and notches to the system ground plane of an internal multiband handset antenna, a significant improvement in the bandwidths of lower bands LTE 700/GSM 850/GSM 900 and upper bands GSM 1... View full abstract»

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  • Compact 2.4GHz-band diversity antenna for mobile terminals

    Publication Year: 2013, Page(s):38 - 41
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1135 KB) | HTML iconHTML

    A compact diversity antenna adopting 3-D structures for mobile terminals is proposed and studied. The antenna consists of two asymmetric quasi-dipole elements, which are printed on the upper-board, and two side-boards. It has a -10 dB impedance bandwidth of 250 MHz (2.37-2.62 GHz), covering the 2.4GHz WLAN (2400-2483 MHz) and across the whole operating frequency band, the mutual coupling between t... View full abstract»

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  • Metahelical antenna using a left-handed property

    Publication Year: 2013, Page(s):74 - 77
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (297 KB) | HTML iconHTML

    A dual-band metahelical antenna that has a negative phase constant for the current on the helical arm is realized. A left-handed circularly polarized (CP) wave is obtained within a specific frequency band and a right-handed CP wave is obtained within a different frequency band. The antenna characteristics, including the radiation pattern, gain, and input performance (VSWR) are presented and discus... View full abstract»

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  • Characteristics of a dipole antenna on a capacitance grid type AMC substrate

    Publication Year: 2013, Page(s):86 - 89
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (957 KB) | HTML iconHTML

    This paper provides simulated results of the impedance characteristics and the radiation patterns of dipole antennas on AMC substrates with different design parameters and different substrate size. View full abstract»

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  • Liquida-Sky — A tunable liquid crystal filter for space applications

    Publication Year: 2013, Page(s):90 - 93
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1436 KB) | HTML iconHTML

    This paper describes the development of a liquid crystal (LC) controlled waveguide filter demonstrator for space application. The filter can be used in a satellite input multiplexer section (IMUX) and allows shifting the filter frequency from 19.7...20.2 GHz with 200 MHz bandwidth. The filter frequency can be controlled magnetically or electrically. The electrical field is generated by dedicated L... View full abstract»

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  • Low-cost design of SIW cavity antennas using surrogate-based optimization

    Publication Year: 2013, Page(s):155 - 158
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB) | HTML iconHTML

    A methodology for low-cost simulation-driven design of a substrate integrated waveguide (SIW) cavity antennas is presented. Our approach exploits variable-fidelity electromagnetic (EM) models of the antenna structure of interest, response surface approximations and frequency scaling. Coarse-discretization EM simulation data is used as a low-fidelity model, which - upon optimization - provides a re... View full abstract»

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  • Active receiving antennas for direction finding

    Publication Year: 2013, Page(s):192 - 195
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (455 KB)

    This paper presents the design and implementation of two VHF (30-90 MHz) receiving antennas for direction finding applications. The antennas are constrained to an aperture area of about 15 cm × 15 cm Therefore, an electrically small-loop and dipole antenna elements are considered. Active amplification designs are also proposed to improve the received signal strength. Finally, measurements a... View full abstract»

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  • Modelling of the land mobile satellite communications channel

    Publication Year: 2013, Page(s):199 - 202
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (971 KB) | HTML iconHTML

    This paper gives an overview over the essential physical phenomena of the satellite communications channel, with particular emphasis on the land mobile satellite (LMS) channel. Then it describes measurement and modelling techniques for the LMS channel and gives an overview over this field. The characteristics of the LMS channel are discussed, and “historic” DLR channel measurements a... View full abstract»

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  • Low-profile tracking antenna for Ka-band satellite communications

    Publication Year: 2013, Page(s):207 - 210
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (786 KB) | HTML iconHTML

    This paper provides information about a mobile low-profile satellite tracking antenna with dual-band performance and a reconfigurable circularly polarised radiation pattern, realised by Ka-band sub-aperture panels located on a mechanical azimuth positioner. The design and measurement results of a leaky-wave antenna panel, selected for this purpose, as well as a tracking antenna prototype are prese... View full abstract»

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  • A tapered long slot antenna of conical radiation beam based on substrate integrated waveguide

    Publication Year: 2013, Page(s):254 - 257
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1136 KB) | HTML iconHTML

    In this paper, a long slot antenna of conical radiation beam is presented, which is based on the substrate integrated waveguide (SIW). The antenna consists of a pair of tapered long slots etched out of both the top and bottom broad walls of a substrate integrated waveguide to produce the conical radiation beam. Experiment results of the fabricated antenna show that the realized beam-pointing angle... View full abstract»

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  • A wire antenna for broadband WLAN applications

    Publication Year: 2013, Page(s):258 - 261
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB) | HTML iconHTML

    This paper presents a wire antenna for multi-band WLAN application, designed using the Structure-Based Evolutionary Programming, and having a very simple geometry. The antenna has been analysed with NEC-2 during the evolutionary process, and the outcome of the procedure shows a very good performance, with a -10dB bandwidth that covers the required frequencies for multi-band WLAN applications (2.4/... View full abstract»

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  • A multi-band antenna for WLAN applications

    Publication Year: 2013, Page(s):262 - 265
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (729 KB) | HTML iconHTML

    This paper presents a small truncated waveguide fed by a microstrip line through a transverse coupling slot for multi-band WLAN applications. The proposed radiating element allows to obtain a high radiated power, with a very low cross-polar component in the radiated field, with a -10 dB bandwidth that covers the required frequencies for multi-band WLAN applications (5.2/5.4/5.8 GHz). View full abstract»

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  • Transmission line mode analysis of wideband/multiband antennas consisting of coupled conductors

    Publication Year: 2013, Page(s):272 - 275
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (258 KB) | HTML iconHTML

    Transmission line mode theory is used to analyze wideband/multiband small antennas consisting of several conductors. First, the modal theory is introduced with equations in order to implement the theory to antenna analysis. Eigenvalue and eigenvector matrices generated by the theoretical calculation are shown. As an example of simple analysis, ILA with a folded structure consisting of two-wire (FI... View full abstract»

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  • 11 GHz dual-polarization MIMO channel measurements and capacity evaluation for mobile communications

    Publication Year: 2013, Page(s):295 - 298
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (831 KB) | HTML iconHTML

    This paper presents outdoor wideband 8×8 multiple-input multiple-output (MIMO) channel measurements using dual-polarized antennas at 11 GHz. The measurements were conducted in the urban and residential areas of Ishigaki City, Okinawa, Japan. The differences in polarization for MIMO capacity and efficiency are discussed with respect to the dependency on local propagation environments. The MI... View full abstract»

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  • A flat car-roof antenna module for phone and GPS applications

    Publication Year: 2013, Page(s):299 - 302
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1420 KB) | HTML iconHTML

    A flat car-roof antenna module for phone and GPS applications is proposed. The module consists of a planar inverted-F antenna (PIFA) for the phone operation and a planar loop antenna for the GPS one. The two antennas are located in a same plane parallel to car roof and put close to each other so that the dimension of the module is only 50 × 80 mm2 in plane. Gap between the antenn... View full abstract»

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  • Decoupling networks composed of lumped elements for diversity/MIMO antennas

    Publication Year: 2013, Page(s):307 - 310
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (363 KB) | HTML iconHTML

    We show design equations for decoupling networks composed of lumped elements. These equations are valid for arbitrary two-element antenna arrays and plane-symmetrical three-element antenna arrays. The decoupling networks consist of series susceptances and shunt susceptances. We design small two-element and three-element antenna arrays with the decoupling networks, and verify the design equations b... View full abstract»

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  • Ka-band Multiple Feed per Beam antenna architecture based on interleaved 3-D directional couplers

    Publication Year: 2013, Page(s):367 - 369
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (585 KB) | HTML iconHTML

    In this paper, an original Multiple Feed per Beam (MFB) antenna architecture is proposed, inspired from telecommunication satellite market needs. Significant overlapping of feed clusters is achieved to enhance illumination performance within a size constrained lattice. The design and the manufacturing of the antenna are reported. View full abstract»

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