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A frequency reconfigurable cylindrically shaped surface with cloaking‐like properties
Author(s) -
Naqvi Aftab,
Saeed Khan Muhammad,
Braaten Benjamin D.
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29793
Subject(s) - hfss , anechoic chamber , cloaking , microstrip , microwave , electromagnetic shielding , microstrip antenna , acoustics , bandwidth (computing) , radar cross section , electronic engineering , surface (topology) , engineering , tunable metamaterials , metamaterial , optics , radar , antenna (radio) , physics , electrical engineering , telecommunications , geometry , mathematics
A cylindrically shaped surface with electromagnetic (EM) cloaking‐like properties is presented in this communication. The surface comprises of a number of 2‐port frequency reconfigurable microstrip (2‐PFRM) elements printed on individual substrates, and to enclose a particular region, several 2‐PFRM elements are interconnected in a cylindrical shape. Each 2‐PFRM element has the capability of coupling an incident EM field on the surface to the adjacent interconnected elements to be re‐radiated in a direction away from the transmitter. Moreover, to demonstrate this concept, a frequency reconfigurable surface operating at 3.68 GHz and 3.89 GHz is simulated in HFSS, manufactured and measured in a full anechoic chamber. The prototype in this paper illustrates that this surface has the additional benefit of overcoming many of the manufacturing difficulties of traditional cloaks because microstrip structures are used. Simulation and measurement results are in good agreement and validate the proposed EM cloak‐like surface for applications that may not require precise phase‐control such as antenna array shielding to reduce mutual coupling, radar cross section reduction and low‐bandwidth communications in complex EM environments. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1323–1329, 2016