Multiband frequency selective surfaces
Frequency Selective Surface (FSS) is an assortment of regular repeated structures which can be utilized either as a band stop or as a band pass filter. A compact aperture type resonator based frequency selective surface has been proposed, which utilizes only single layer aperture type resonators...
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Format: | Theses and Dissertations |
Language: | English |
Published: |
2016
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Subjects: | |
Online Access: | http://hdl.handle.net/10356/65890 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | Frequency Selective Surface (FSS) is an assortment of regular repeated structures which can be
utilized either as a band stop or as a band pass filter. A compact aperture type resonator based
frequency selective surface has been proposed, which utilizes only single layer aperture type
resonators which is easier for manufacturing, designing and fabrication. The designed FSS
structure has equally spaced at each operation bands with good performance at selected
frequency. The simple two dimensional combinations of replicated T-shaped, U-shaped and a
rectangular shaped aperture type resonator are integrated to accomplish the ability of obtaining
multi bands using single layer FSS. A full wave CST Microwave solver has been utilized to
optimize the dimensions of the aperture type resonators. The designed FSS structure is selfreliant
of orientation and polarization due to 90° tilt in structure of unit cell. With the
authentication of simulation and measurement results the designed FSS has been validated. A
Horn Antenna is chosen for the experimental verification. The simulation and the measured
results both represent that, designed FSS structure operate at the desired frequencies between
8GHz to 14GHz. The insertion loss that has been examined during the measurement analysis of
the fabricated Frequency Selective Surface is 3.26 dB at 8.11 GHz, 2.68 dB at 9.81 GHz, 1.12 dB
at 11GHz and 0.024 dB at 12 GHz. |
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