Omnidirectional antenna having constant phase
| DWPI Title: Ring antenna used for navigation system of vehicle has multiple posts located between lower plate and upper plate, and positioned around outer ring at even spacing |
| Abstract: Various technologies presented herein relate to constructing and/or operating an antenna having an omnidirectional electrical field of constant phase. The antenna comprises an upper plate made up of multiple conductive rings, a lower ground-plane plate, a plurality of grounding posts, a conical feed, and a radio frequency (RF) feed connector. The upper plate has a multi-ring configuration comprising a large outer ring and several smaller rings of equal size located within the outer ring. The large outer ring and the four smaller rings have the same cross-section. The grounding posts ground the upper plate to the lower plate while maintaining a required spacing/parallelism therebetween. |
| Use: Ring antenna used for navigation system of vehicle. |
| Advantage: Enables posts to ground upper plate to lower plate while maintaining spacing between upper plate and lower plate. Enables vehicle traveling at such high velocity to travel with stable flight and maintain required direction of vehicle. Enables high degree of positional determination with global positioning system (GPS) receiver. |
| Novelty: The ring antenna (100) has an outer ring and multiple inner rings. A conductive cone (140) is attached to the inner rings. The base of the conductive cone is located at the center point of the outer ring. The apex of the conductive cone is located over a hole in a lower plate (110). Multiple posts (130) connect an upper plate (120) to the lower plate. The posts, located between the lower plate and the upper plate, are positioned around the outer ring at an even spacing. |
| Filed: 8/19/2015 |
| Application Number: US14829852A |
| Tech ID: SD 12946.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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