Matches in SemOpenAlex for { <https://semopenalex.org/work/W2897777696> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2897777696 endingPage "6996" @default.
- W2897777696 startingPage "6986" @default.
- W2897777696 abstract "Superdirective arrays have become the key technique in enhancing the directivity of electrically small antennas. By forming an array of closely spaced unit elements, a high directivity can be achieved. Despite the high directivity, these arrays suffer from narrow bandwidth and low efficiency. In this paper, we present an approach to enhance the bandwidth of superdirective arrays using the network characteristic modes. The key step is to use an internally loaded compact wideband unit element. The loads inside the unit element are used to manipulate the characteristic modes in order to optimize its impedance bandwidth. A two-element endfire array is then formed. The modal coefficients of the characteristic fields are then optimized at multiple frequency points in order to radiate a maximal directivity in the endfire direction. The best current excitation that can maintain a constant directivity as a function of frequency is then deduced. Finally, a feeding network that can provide the desired excitation at the array ports is designed and integrated on the array system, where the 1 dB directivity bandwidth is about 23% with D <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>max</sub> = 7.1 dBi. The antenna impedance bandwidth is equal to 15%." @default.
- W2897777696 created "2018-10-26" @default.
- W2897777696 creator A5020603633 @default.
- W2897777696 creator A5038792578 @default.
- W2897777696 creator A5039641880 @default.
- W2897777696 date "2018-12-01" @default.
- W2897777696 modified "2023-10-06" @default.
- W2897777696 title "Characteristic Modes Approach to Design Compact Superdirective Array With Enhanced Bandwidth" @default.
- W2897777696 cites W1626834557 @default.
- W2897777696 cites W1897062980 @default.
- W2897777696 cites W1967469778 @default.
- W2897777696 cites W1976538210 @default.
- W2897777696 cites W1987051334 @default.
- W2897777696 cites W2004406124 @default.
- W2897777696 cites W2043041333 @default.
- W2897777696 cites W2047492005 @default.
- W2897777696 cites W2074581923 @default.
- W2897777696 cites W2076133728 @default.
- W2897777696 cites W2103185734 @default.
- W2897777696 cites W2103498147 @default.
- W2897777696 cites W2104374347 @default.
- W2897777696 cites W2120253102 @default.
- W2897777696 cites W2147100499 @default.
- W2897777696 cites W2147416982 @default.
- W2897777696 cites W2154424509 @default.
- W2897777696 cites W2174490785 @default.
- W2897777696 cites W2514730780 @default.
- W2897777696 cites W2758599776 @default.
- W2897777696 cites W2769244736 @default.
- W2897777696 doi "https://doi.org/10.1109/tap.2018.2874691" @default.
- W2897777696 hasPublicationYear "2018" @default.
- W2897777696 type Work @default.
- W2897777696 sameAs 2897777696 @default.
- W2897777696 citedByCount "14" @default.
- W2897777696 countsByYear W28977776962019 @default.
- W2897777696 countsByYear W28977776962020 @default.
- W2897777696 countsByYear W28977776962022 @default.
- W2897777696 countsByYear W28977776962023 @default.
- W2897777696 crossrefType "journal-article" @default.
- W2897777696 hasAuthorship W2897777696A5020603633 @default.
- W2897777696 hasAuthorship W2897777696A5038792578 @default.
- W2897777696 hasAuthorship W2897777696A5039641880 @default.
- W2897777696 hasBestOaLocation W28977776962 @default.
- W2897777696 hasConcept C120665830 @default.
- W2897777696 hasConcept C121332964 @default.
- W2897777696 hasConcept C17829176 @default.
- W2897777696 hasConcept C189039984 @default.
- W2897777696 hasConcept C21822782 @default.
- W2897777696 hasConcept C24890656 @default.
- W2897777696 hasConcept C2776257435 @default.
- W2897777696 hasConcept C2780202535 @default.
- W2897777696 hasConcept C41008148 @default.
- W2897777696 hasConcept C62191587 @default.
- W2897777696 hasConcept C62520636 @default.
- W2897777696 hasConcept C76155785 @default.
- W2897777696 hasConceptScore W2897777696C120665830 @default.
- W2897777696 hasConceptScore W2897777696C121332964 @default.
- W2897777696 hasConceptScore W2897777696C17829176 @default.
- W2897777696 hasConceptScore W2897777696C189039984 @default.
- W2897777696 hasConceptScore W2897777696C21822782 @default.
- W2897777696 hasConceptScore W2897777696C24890656 @default.
- W2897777696 hasConceptScore W2897777696C2776257435 @default.
- W2897777696 hasConceptScore W2897777696C2780202535 @default.
- W2897777696 hasConceptScore W2897777696C41008148 @default.
- W2897777696 hasConceptScore W2897777696C62191587 @default.
- W2897777696 hasConceptScore W2897777696C62520636 @default.
- W2897777696 hasConceptScore W2897777696C76155785 @default.
- W2897777696 hasFunder F4320322727 @default.
- W2897777696 hasFunder F4320335322 @default.
- W2897777696 hasIssue "12" @default.
- W2897777696 hasLocation W28977776961 @default.
- W2897777696 hasLocation W28977776962 @default.
- W2897777696 hasLocation W28977776963 @default.
- W2897777696 hasLocation W28977776964 @default.
- W2897777696 hasLocation W28977776965 @default.
- W2897777696 hasOpenAccess W2897777696 @default.
- W2897777696 hasPrimaryLocation W28977776961 @default.
- W2897777696 hasRelatedWork W1598404679 @default.
- W2897777696 hasRelatedWork W1942361191 @default.
- W2897777696 hasRelatedWork W1981229984 @default.
- W2897777696 hasRelatedWork W2106275690 @default.
- W2897777696 hasRelatedWork W2286659555 @default.
- W2897777696 hasRelatedWork W2769244736 @default.
- W2897777696 hasRelatedWork W2897777696 @default.
- W2897777696 hasRelatedWork W2911933580 @default.
- W2897777696 hasRelatedWork W2953010413 @default.
- W2897777696 hasRelatedWork W3003323702 @default.
- W2897777696 hasVolume "66" @default.
- W2897777696 isParatext "false" @default.
- W2897777696 isRetracted "false" @default.
- W2897777696 magId "2897777696" @default.
- W2897777696 workType "article" @default.