Abstract
This paper proposes a dual-band left-handed circularly polarized triangular-patch array that is developed for land vehicle mobile system aimed at mobile satellite communications. The array consists of six tip-truncated triangular
patches, which the first three patches are used for reception and the second three patches are used for transmission purpose. Each of three-patches has a beam pattern that can be switched in three different 120°-coverage beam in
azimuth-cut plane at a minimum targeted gain at a desired elevation angle. The targeted minimum gain of the array is 5dBic, in order for data communications with a large geostationary satellite can be achieved. The array is able to operate
in two different frequency bands i.e. 2.50 GHz band for reception (down-link) and 2.65 GHz band for transmission (uplink). The array is simulated using the Method of Moments-based software (Ansoft Maxwell), fabricated and measured
to confirm the simulated results. The measurement results show that the 5dBic-gain and the 3dB-axial ratio of the reception elements cover all of 360° azimuth direction. In the case of transmission elements, 4.3dBic-gain and the 3dBaxial
ratio can be obtained.
patches, which the first three patches are used for reception and the second three patches are used for transmission purpose. Each of three-patches has a beam pattern that can be switched in three different 120°-coverage beam in
azimuth-cut plane at a minimum targeted gain at a desired elevation angle. The targeted minimum gain of the array is 5dBic, in order for data communications with a large geostationary satellite can be achieved. The array is able to operate
in two different frequency bands i.e. 2.50 GHz band for reception (down-link) and 2.65 GHz band for transmission (uplink). The array is simulated using the Method of Moments-based software (Ansoft Maxwell), fabricated and measured
to confirm the simulated results. The measurement results show that the 5dBic-gain and the 3dB-axial ratio of the reception elements cover all of 360° azimuth direction. In the case of transmission elements, 4.3dBic-gain and the 3dBaxial
ratio can be obtained.
Original language | English |
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Pages (from-to) | 141-147 |
Journal | Makara Journal of Technology |
Volume | 19 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2015 |