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公开(公告)号：US11469501B2
公开(公告)日：2022-10-11
申请号：US17042317
申请日：2019-03-29
Applicant: Agency for Science, Technology and Research
Inventor： Xinyi Tang , Francois Po Shin Chin , Xiaoming Peng , Xianming Qing
Abstract: There is provided a beam steerable antenna system including: an antenna array including a plurality of first radiating elements; a first phase control section coupled to the plurality of first radiating elements, the first phase control section being configured to control a phase of signals from the plurality of first radiating elements to output first phase controlled signals; a first combiner coupled to the first phase control section, the first combiner being configured to combine the first phase controlled signals to output a first combined signal; a first frequency converter coupled to the first combiner, the first frequency converter being configured to downconvert a frequency of the first combined signal to output a first downconverted signal; and a second phase control section coupled to the first frequency converter, the second phase control section being configured to control a phase of the first downconverted signal to output a second phase controlled signal. There is also provided a method of manufacturing the beam steerable antenna system, and a method of beam steering an antenna array.
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公开(公告)号：US20210105063A1
公开(公告)日：2021-04-08
申请号：US16956421
申请日：2018-12-19
Applicant: Agency for Science, Technology and Research
Inventor： Tung Chong David Wong , Xiaoming Peng
Abstract: A number of Satellite VDES MAC protocols are provided. The Satellite VDES MAC protocol provides a significant improvement in the overall throughput in the satellite communication system. In one aspect, a method, a computer readable medium, and an apparatus for wireless communication are provided. The apparatus may determine a geographical location of a terrestrial vessel. The apparatus may determine a subset of time slots in a frame of an uplink communication channel based on the geographical location. The apparatus may select at least one candidate time slot from the subset of time slots. The apparatus may transmit a message using the at least one candidate time slot.
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公开(公告)号：US20210021033A1
公开(公告)日：2021-01-21
申请号：US17042317
申请日：2019-03-29
Applicant: Agency for Science, Technology and Research
Inventor： Xinyi Tang , Francois Po Shin Chin , Xiaoming Peng , Xianming Qing
Abstract: There is provided a beam steerable antenna system including: an antenna array including a plurality of first radiating elements; a first phase control section coupled to the plurality of first radiating elements, the first phase control section being configured to control a phase of signals from the plurality of first radiating elements to output first phase controlled signals; a first combiner coupled to the first phase control section, the first combiner being configured to combine the first phase controlled signals to output a first combined signal; a first frequency converter coupled to the first combiner, the first frequency converter being configured to downconvert a frequency of the first combined signal to output a first downconverted signal; and a second phase control section coupled to the first frequency converter, the second phase control section being configured to control a phase of the first downconverted signal to output a second phase controlled signal. There is also provided a method of manufacturing the beam steerable antenna system, and a method of beam steering an antenna array.
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