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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Realizing capacity demands of future wireless communications requiresimproved spectral efficiency in the sub-6-GHz frequency bands. This paperproposes a novel eight-element multiple-input multiple-output (MIMO) antennathat can be tuned from 1.7 to 6 GHz. The design is based on the antenna clusterconcept, where weighted feeding of multiple antenna elements is used to modifythe operating frequency. This paper extends the theory of the concept toaccount for multiple separate clusters, thus enabling it to be used for MIMO.The proposed antenna achieves over 60% efficiency at frequencies above 3 GHz,and the system exceeds the ergodic capacity of the ideal 7x7 MIMO in that band.

Tunable Eight-Element MIMO Antenna Based on the Antenna Cluster Concept