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A divide‐by‐3 planar power divider with >30 dB isolation
Author(s) -
Abdullah Amber,
Zakir M. Ayaz,
Cheema Hammad M.
Publication year - 2020
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.32266
Subject(s) - wilkinson power divider , return loss , power dividers and directional couplers , insertion loss , planar , current divider , electrical engineering , amplifier , electrical impedance , bandwidth (computing) , transmission line , engineering , electric power transmission , electronic engineering , telecommunications , frequency divider , antenna (radio) , computer science , computer graphics (images)
A new three‐way planar power divider, based on recombinant structure and multisection impedance transformers achieving equal division ratio and high isolation is presented. The new design structure comprises of unequal impedance multisections, and achieves higher isolation than planarized Wilkinson dividers and smaller structure than recombinant designs. The divider is completely modeled analytically using transmission line theory, followed by verification through simulation and measurements. With an overall size of 23.5 mm × 29 mm, the divider demonstrates a bandwidth from 1.8 GHz to 2.8 GHz with measured 20 dB isolation bandwidth of 43%, peak isolation of 31 dB, insertion loss of 4.99 ± 0.5 dB and return loss better than 13 dB at 2.4 GHz. The planar structure, small size and highest reported isolation at 2.4 GHz, makes the design suitable for MMICs, antenna feed networks and power amplifier applications.