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Switchable power combining circuit for improved graceful‐degradation performance
Author(s) -
Lee DongMook,
Hong Yunseog,
An YonJun,
Yook JongGwan
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.29052
Subject(s) - degradation (telecommunications) , amplifier , power (physics) , microwave , electronic engineering , power dividers and directional couplers , engineering , electrical engineering , topology (electrical circuits) , computer science , telecommunications , physics , cmos , quantum mechanics
A four‐way switchable power combiner/divider is proposed in this letter. The structure is based on a substrate integrated circular cavity, and control of the number of coupling probes is possible for graceful degradation. The proposed structure forms a switchable power combining circuit with amplifiers at 2.13 GHz. In addition, the proposed scheme provides improved graceful‐degradation performance under the condition of amplifier's failure. The graceful‐degradation characteristics of gain and output power are experimentally demonstrated as one or more amplifiers are switched off. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1213–1216, 2015