NDLI: Reconfigurable hybrid matrix-based power divider with variable power-dividing ratios and frequencies

Content Provider	IET Digital Library
Author	Kim, J. H. Yang, J. R. Oh, J.
Abstract	In this Letter, the authors present a reconfigurable power divider using a hybrid matrix with variable impedance tuners. The proposed hybrid matrix-based power divider with varactor-tuned impedance tuners (VTITs) can simultaneously obtain variable power-dividing ratios at the centre frequency and variable operating frequencies for the 3 dB coupling states. The VTITs, consisting of a transmission line, an inductor, and a varactor located between the line and the inductor, are connected in parallel between two hybrid couplers for high impedance variation. Measured results demonstrate that the power-dividing ratio of the proposed divider varies from −14.3 to 13.3 dB with a return loss above 20 dB and the isolation above 20 dB at a centre frequency of 2.45 GHz. Moreover, it achieves an insertion loss of 0.7–1.45 dB and a phase variation of less than 8° across the variable power-dividing ratio at the centre frequency. The frequency-tuning range for the 3 dB coupling states is 750 MHz with a small phase variation of 5°.
Starting Page	889
Ending Page	891
Page Count	3
ISSN	00135194
Volume Number	56
e-ISSN	1350911X
Issue Number	Issue 17, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/56/17
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2020.1277
Journal	Electronics Letters
Publisher Date	2020-06-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Capacitor Circuit Tuning Coupling States Electric Impedance Frequency 2.45 GHz Frequency 750.0 MHz Hybrid Couplers Impedance Variation Inductor Inductors And Transformer Junction And Barrier Diode Loss 0.7 DB to 1.45 DB Power Divider Reconfigurable Hybrid Matrix-based Power Divider Transmission Line UHF Couplers Varactor-tuned Impedance Tuners Varactors Variable Impedance Tuners Variable Operating Frequency Variable Power-dividing Ratio VTIT Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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