Dual-band frequency selective surfaces based on multi-arm sub-wavelength Archimedean spirals

Two design strategies are presented to create dual-band frequency selective surfaces based on multi-arm Archimedean spirals. A single-band element is first presented as the basis for the surface. The individual arm lengths of the spirals are utilised as the primary design parameter to synthesise the...

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Bibliographic Details
Published in:Electronics letters 2015-09, Vol.51 (19), p.1476-1478
Main Authors: Kelley, M, Huff, G
Format: Article
Language:English
Subjects:
Antennas and propagation
arm lengths
Design parameters
dual band frequency selective surfaces
eight‐arm uniform lattice
four‐arm spirals
Frequency selective surfaces
Lattices
multiarm sub‐wavelength Archimedean spirals
multifrequency antennas
pass‐band response
primary design parameter
Prototypes
Simulation
single‐band element
spiral antennas
Spirals
stop‐band response
Strategy
S‐band prototype
Topology
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Summary:Two design strategies are presented to create dual-band frequency selective surfaces based on multi-arm Archimedean spirals. A single-band element is first presented as the basis for the surface. The individual arm lengths of the spirals are utilised as the primary design parameter to synthesise the passband and stopband responses. The first approach uses a lattice of four-arm spirals with alternating sizes, and the second combines these into an eight-arm uniform lattice of elements. Measured and simulated results are included for a fabricated S-band prototype of each topology to demonstrate the basic design strategies.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2015.0752