A switchable wideband frequency selective rasorber/absorber based on PIN diodes is achieved in this paper. When the PIN diodes are switched ON and OFF, the designed structure switches the working states between an absorber and a rasorber, respectively. The proposed structure consists of non-switchable lossy layer and switchable bandpass frequency selective surface (FSS), which are separated by an air interlayer. In the state of rasorber, the 1 dB transmission band is obtained in 3.87-4.95 GHz with the minimum insertion loss of 0.28 dB at 4.31GHz. The structure presents an absorption band from 1.48 GHz to 3.37GHz with absorptivity up to 80% in absorbing state. In addition, an equivalent circuit model (ECM) is established to comprehend the operating mechanism of the switchable structure. Therefore, the designed switchable rasorber can be applied in the field of the smart radome.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.