Extraordinary electromagnetic transmission by antenna arrays and frequency selective surfaces having compound unit cells with dissimilar elements
| DWPI Title: System for performing extraordinary electromagnetic transmission by antenna arrays, has feed network connected to set of array elements, where range of frequencies is function of mutual coupling effect between array elements in array |
| Abstract: The various embodiments presented herein relate to extraordinary electromagnetic transmission (EEMT) to enable multiple inefficient (un-matched) but coupled radiators and/or apertures to radiate and/or pass electromagnetic waves efficiently. EEMT can be utilized such that signal transmission from a plurality of antennas and/or apertures occurs at a transmission frequency different to transmission frequencies of the individual antennas and/or aperture elements. The plurality of antennas/apertures can comprise first antenna/aperture having a first radiating area and material(s) and second antenna/aperture having a second radiating area and material(s), whereby the first radiating/aperture area and second radiating/aperture area can be co-located in a periodic compound unit cell. Owing to mutual coupling between the respective antennas/apertures in their arrayed configuration, the transmission frequency of the array can be shifted from the transmission frequencies of the individual elements. EEMT can be utilized for an array of evanescent of inefficient radiators connected to a transmission line(s). |
| Use: System for performing extraordinary electromagnetic transmission by antenna arrays and frequency selective surfaces. |
| Advantage: The system ensures that frequency of signal transmission for the antenna array can be at the operating frequency rather than at other operating frequencies owing to mutual coupling occurring between the first antenna element and the second antenna element, so that signals generated from combination of first antenna element and the second antenna element provide frequency of the operating frequency. |
| Novelty: The system has a feed network connected to a first set of array elements and a second set of array elements. The first array element and the second array element are excited by a signal transmitted over the feed network, where the signal has a range of frequencies and the range of frequencies is different from other range of frequencies, and the former range of frequencies is a function of a mutual coupling effect between the first array element and the second array element in an array. A cover layer is formed over the array. |
| Filed: 10/28/2015 |
| Application Number: US14925045A |
| Tech ID: SD 12140.0 |
| 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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