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OwnerGary Gwoon Wong, Calvin Gwoon Wong +2inventors
InventorsGARY GWOON WONG, CALVIN GWOON WONG, PERRY GWOON WONG, KALEM GWOON WONG
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This invention discloses a design and application of a variable beam antenna optimized for Wi-Fi application in data, video and voice transmission between various systems with an emphasis on medical monitoring. The subject antenna consists of a unique group of dipole radiators that are excited by zigzag feed lines and perform together as an array. This antenna is unique because it can provide various high gain beams by simply applying electrical shorts at the cross points in the feed lines. The shorts can be created mechanically or electronically. The antenna beam coverage can range from 15° to 110° wide in H plane and maintains a constant beam width of 60° in E plane. The shorts are applied to reduce the antenna effective aperture, thereby increasing the beam width of the antenna. The current that flows to the outer dipoles are cut-off due to the shorts.
An antenna structure comprising:
A method of exiting dipole radiating elements by joining a first group of radiating elements on the top of a circuit board with a first continuous zigzag feed line and a second group of radiating elements on the bottom of a circuit board with a second continuous zigzag feed line such that the feed lines are arranged in half wavelength segments in zigzag positions along the center of the horizontal line of the dipole elements and each half wavelength segment of the first feed line crosses the center of the corresponding half wavelength segment of the second feed line, the crossing points are electrical joined to control the radiation of the antenna structure selectively.
Dependencies are inferred from the claim text.