English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper, a dual polarized, dual band, low profile, embedded biasnetwork, and compact tunable varactor band pass frequency selective surface(FSS) is designed with a wide tuning range. The proposed FSS is composed of twometallic layers printed on both sides of the substrate, where the top side hastwo cross strips with different dimensions encircled with high pass grids,whereas the bottom side includes a proper bias network. The loaded varactorsbetween the grids and the cross strips with a designed bias network achieve twoindependent tunable pass bands. Moreover, an equivalent circuit of the FSS isextracted, which show good agreement with the full wave simulation results. Theproposed FSS can operate from 2.28 GHz to 4.66 GHz and from 5.44 GHz to 11.3GHz by proper tuning of the varactors loaded in the large and small crossstrips. The tunable range of the low and high pass bands are about 70% withrespect to the center frequency of each pass band. The electrical dimensions ofthe proposed FSS are about $0.05\lambda\times0.05\lambda$, where $\lambda$ isthe free space wavelength at a lower pass band (2.28 GHz). Moreover, theproposed FSS works properly up to $60^\circ$ incident angles.

Dual band, low profile and compact tunable frequency selective surface with wide tuning range