【题目】:A Novel Unequal Power Divider With General Isolation Topology: Design and Verification
【关键词】:Compact size, general isolation topology (GIT), high power ratio, unequal power divider (PD),standard 50-Ω ports
【版面信息】:IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS, VOL. 33, NO. 1, JANUARY 2023
In this letter, a novel unequal power divider (PD)
with three standard 50-Ω ports is presented. It consists of two
transmission line (TL) sections, two resistors, and a general
isolation topology (GIT). Through analyzing voltages and currents
of each branch, the constraint conditions of such a GIT
are newly established. Considering realization of GIT, two types
of topologies, i.e., asymmetrical coupled line and cascaded TL,
are selected for verification. From the design charts and several
design examples, the proposed PD could not only provide high
power ratio k2with compact size but also independently adjust
their fractional bandwidths (S11or S32) with the same power
ratio k2. Finally, an unequal PD with the power ratio k2= 8 is
fabricated, and the measured results meet the simulated results
very well.