Synthesis of one dimensional electromagnetic bandgap structures with fully controlled parameters

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Date
2017Author
Version
Acceso abierto / Sarbide irekia
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Artículo / Artikulua
Version
Versión aceptada / Onetsi den bertsioa
Project Identifier
ES/1PE/TEC2014-51902-C2-2-R ES/1PE/TEC2014-55735-C3-R
Impact
|
10.1109/TMTT.2017.2722401
Abstract
In this paper, we propose a novel synthesis strategy
for the design of one dimensional electromagnetic bandgap (1-
D-EBG) structures where all the performance parameters of
these devices can fully be controlled, i.e., the central frequency
of the forbidden band, its attenuation level and bandwidth,
and the ripple level at the passbands. The novel synthesis
strategy employs a new inverse-sca ...
[++]
In this paper, we propose a novel synthesis strategy
for the design of one dimensional electromagnetic bandgap (1-
D-EBG) structures where all the performance parameters of
these devices can fully be controlled, i.e., the central frequency
of the forbidden band, its attenuation level and bandwidth,
and the ripple level at the passbands. The novel synthesis
strategy employs a new inverse-scattering technique to accurately
synthesize the 1-D-EBG structure, targeting a properly
interpolated version of a classical periodic filter fulfilling the
required frequency specifications. The new inverse-scattering
technique follows a continuous layer peeling approach and relies
on the coupled-mode theory to precisely model the microwave
structures. Telecommunication and radar systems, as well as
material characterization devices, will be profited by this proposal
with which enhanced filters, sensors, power dividers, couplers,
mixers, oscillators, and amplifiers can be designed in many
different technologies. As a proof of concept, a 1-D-EBG structure
in microstrip technology with a single forbidden band (free of
spurious stopband replicas), with attenuation level of 30 dB,
fractional bandwidth larger than 100%, and return loss level
at the passbands of 20 dB, has been designed and fabricated.
The measurements obtained are in very good agreement with
the simulations and target specifications, being free of spurious
replicas up to the 15th harmonic, showing the robustness and
very good performance of the novel design strategy proposed. [--]
Subject
Publisher
IEEE
Published in
IEEE Transactions on microwave theory and tecniques, vol.65, n. 9, September 2017
Departament
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko eta Elektronikoa Saila
Publisher version
Sponsorship
This work was supported by MINECO (Spain) under Projects TEC2014-51902-C2-2-R and TEC2014-55735-C3-R.