An Active Frequency Selective Surface Design Having Four Different Switchable Frequency Characteristics
نویسندگان
چکیده
منابع مشابه
Single - Layer Bandpass Active Frequency Selective Surface
If you believe this document infringes copyright then please contact the KAR admin team with the take-down information provided at http://kar.kent.ac.uk/contact.html Citation for published version Ghaffer, I Kiani. and Ford, Kenneth L. and Esselle, Karu P. and Weily, Andrew R. and Panagamuwa, C. and Batchelor, John C. (2008) Single-Layer Bandpass Active Frequency Selective Surface. Microwave an...
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A single-layer, bandpass, active FSS is presented. It shows good angle of incidence stability for TE incidence, at the operating frequency of 2.45 GHz. It is based on circular loop aperture with each unit cell having four PIN diodes. A novel method for dc biasing is used. About 12 dB average variation in transmission loss, between ON and OFF states, has been experimentally achieved at 2.45 GHz.
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Abstract—Tunable frequency selective surfaces (FSSs) based on split ring resonators (SRRs) are presented. Tuning performance is achieved by means of several on/off switches placed between the rings of each SRR element. The band-stop FSS response is dynamically tuned to different frequency bands at different switching states. In addition, loadings placed at the corners of outer ring elements, fo...
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An equivalent circuit model for predicting the frequency response of a square ring slot frequency selective surface (SRS-FSS) for normal incidence is described. The proposed FSS consists of an array of square patches centered within a wire grid. The presented circuit model is formed by the impedance of the wire grid that is parallel with the impedance of the patch array, also the mutual couplin...
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This paper presents a novel three-dimensional active frequency selective surfaces loading a varactor diode to achieve electrically controllable, by loading different values of paranoid voltage to control the variable capacitance diode. Simulation results show that the structure has excellent resonant characteristics in the range of 3.34GHz-1.59GHz, and has certain sensitivity for the change of ...
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ژورنال
عنوان ژورنال: Radioengineering
سال: 2019
ISSN: 1210-2512
DOI: 10.13164/re.2019.0114