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Subject: search.filters.subject.Phased array

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    Item type:Publication,
    Performance of switched-beam element phased array for handset adaptive antenna
    (2007-12-01)
    Boonpoonga, Akkarat
    ;
    Sirisuk, Phaophak
    ;
    Phongcharoenpanich, Chuwong
    ;
    Krairiksh, Monai
    This paper evaluates the performance of a handset adaptive antenna using a constant modulus algorithm (CMA). The antenna is a switched-beam phased array antenna which can assist initialization of CMA. The method to improve convergence property of CMA exploits a beam with maximum received power from several switched-beams of the antenna as an initial beam. Simulation results in term of signal-to-interference plus noise ratio (SINR) are shown to validate that the proposed antenna has a good performance and is suitable for installation on a handset. © 2007 EuMA.
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    A flat four-beam compact phased array antenna
    (2002-05-01)
    Krairiksh, Monai
    ;
    Ngamjanyaporn, Phaisan
    ;
    Kessuwan, Chaiwat
    This paper presents a flat four-beam compact phased array antenna. The low-cost and compact phased array antenna is designed using a circular array of four circular microstrip antennas made of low-cost material and four 1-bit phase shifters. The main beam of the antenna can be switched in four directions with the gain of about 4 dBi in each main-beam direction. More than 90° half-power beamwidth and over 10 dB F/B ratio are obtained. In addition, the diversity performance is considered and the diversity performance of this antenna can be provided with the envelope correlation about 0.6.