Varactor-Tuned Radial Power Divider with SIW Technology

Young-Pyo HONG
Jong-Gwan YOOK

IEICE TRANSACTIONS on Electronics   Vol.E94-C    No.12    pp.1902-1905
Publication Date: 2011/12/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E94.C.1902
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Microwaves, Millimeter-Waves
frequency-agile,  low loss,  radial power divider,  substrate integrated waveguide,  varactor-tuned,  

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Based on the substrate integrated waveguide (SIW) technology, a new type of varactor-tuned radial power divider has been developed with a single bias supply. The varactors are used as tuning elements and allow for a frequency agile behavior. In addition, bandwidth characteristics have been analysed with group-delay. It has been measured with a single bias supply ranging from 6 V to 12 V that the center frequency of the power divider can be adjusted from 6.6 GHz to 7.2 GHz (600 MHz, 11.5%) while maintaining a low insertion loss (< 1 dB) in the passband.