Yikun
Yikun Huang, Bozeman, MT US
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20120299765 | COMPACT SMART ANTENNA FOR MOBILE WIRELESS COMMUNICATIONS - A compact, high gain 8-element circular smart antenna is able to scan a beam azimuthally through 360°. The 8-element array is placed on a ground skirt and connected to an 8-channel beamforning board via a transfer plate. Each channel has two T/R switches, one band pass filer, one power amplifier, two low noise amplifiers, one phase shifter, and one attenuator. The 8-channel-signal is combined through power splitters/combiners and then sent to a connected radio. An FPGA chip controls the digital phase shifters, attenuators and switches for signal searching, beamforming and tracking. The smart antenna can be operated as a compact switched beam system or with an additional processor as an adaptive array system. The smart antenna is capable of tracking mobile targets, directionally communicating with desired users, suppressing interference and jamming, and enabling long range communications with high throughput and reliable connection because of its high antenna gain. | 11-29-2012 |
Yikun Yang, Shenzhen City CN
Patent application number | Description | Published |
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20130110939 | Multi-Network Multi-Plane Structure Short Message Centre System and Implementation Method Thereof | 05-02-2013 |
Yikun Zhang, Beijing CN
Patent application number | Description | Published |
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20130215739 | ROUTING METHOD FOR A WIRELESS MULTI-HOP NETWORK - Disclosed is a routing method named lock routing for a wireless multi-hop network, which can be based on next-hop routing and source routing and named next-hop lock routing and source lock routing respectively. The routing method utilizes traffic packets to monitor the link quality and utilizes local broadcast to help a source node keep track of the varying network topology in order to update a route path to a destination node. In local broadcast, routing control messages can be forwarded by path nodes and neighbors of an old route path, which reduces the routing control overhead and enhances the network scalability. A route update process can be triggered by the link quality and the path node state and is used to maintain ongoing traffic flows and extend the network lifetime. | 08-22-2013 |