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High isolation dual‐polarized broadband antenna for base stations
Author(s) -
Ciydem Mehmet,
Koc Sencer
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28908
Subject(s) - broadband , optics , microwave , port (circuit theory) , isolation (microbiology) , return loss , physics , dual polarization interferometry , electrical engineering , antenna (radio) , radiation , optoelectronics , polarization (electrochemistry) , materials science , telecommunications , engineering , chemistry , microbiology and biotechnology , biology
A broadband (1.71–2.17 GHz), high isolation, and dual‐polarized suspended plate antenna (SPA) is presented. Modified L‐probe feed is used for broadband matching and capacitive coupling. Port isolation between two orthogonally polarized channels is improved by making extensions on suspended plates (SPs) and inserting a vertical ungrounded square tube under the first SP (SP 1 ). The prototyped SPA resulted in 8 ± 0.5 dBi gain and 67° ± 6° symmetric E‐plane and H‐plane radiation patterns with low cross‐polarization levels. Return losses ≤−15 dB and port isolation ≤−30 dB are achieved in the entire band. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:603–607, 2015