Quad-Band Polarization-Insensitive Millimeter-Wave Frequency Selective Surface for Remote Sensing

A novel millimeter-wave frequency selective surface (FSS) is presented for demultiplexing four atmospheric remote sensing bands with varying bandwidth (3-20 GHz) and frequency separation (50-195 GHz). The unit cell (670 μm × 670 μm) is a circular metal mesh loaded with a monopole integrated concentr...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2017, Vol.16, p.1796-1799
Main Authors: Poojali, Jayaprakash, Ray, Shaumik, Pesala, Bala, Venkata, Krishnamurthy C., Arunachalam, Kavitha
Format: Article
Language:English
Subjects:
Air gaps
Bandwidths
Circularity
Demultiplexing
Frequency response
Frequency selective surface (FSS)
Frequency selective surfaces
Incidence
Insertion loss
Metals
millimeter wave
Polarization
Propagation losses
Quartz
Remote sensing
Separation
Substrates
Unit cell
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Summary:A novel millimeter-wave frequency selective surface (FSS) is presented for demultiplexing four atmospheric remote sensing bands with varying bandwidth (3-20 GHz) and frequency separation (50-195 GHz). The unit cell (670 μm × 670 μm) is a circular metal mesh loaded with a monopole integrated concentric ring on a 175-μm-thick quartz substrate designed to reject 50-60 GHz (B 1 ), 87-91 GHz (B 2 ), and 148-151 GHz (B 3 ), and transmit 175-195 GHz (B 4 ) for transverse electric (TE) and transverse magnetic (TM) polarizations at oblique incidence (25 ° -35 ° ). Transmission response of the cascaded FSS measured using a continuous-wave terahertz source showed insertion loss of 15 dB and higher in the reflection windows (B 1 , B 2 , and B 3 ) and less than 0.5 dB in the transmission window (B 4 ) for TE and TM polarizations at 30° incident angle.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2017.2679204