NDLI: Compact microstrip eight-channel multiplexer with independently switchable passbands

Content Provider	IET Digital Library
Author	Chen, Chi Feng Tseng, Bo Hao Wang, Guo Yun Li, Jhong Jhen
Abstract	A compact eight-channel multiplexer with independently switchable passbands has been presented and investigated. The use of the dual-mode stub-loaded resonators can lead to significant size reduction for the multiplexer, this is because the required resonator number is reduced. In addition, the multiplexer is designed based on the distributed coupling technique, so that each passband can be designed individually due to the loading effect is small. Moreover, the complicated nine-port matching network at the input is not required. Besides, since the p-i-n diodes are connected to the output resonators for each channel, all passbands of the multiplexer can be independently switched on and off when the diode is in the reverse-biased and forward-biased states, respectively. Therefore, the proposed multiplexer can arbitrarily transfer to a single-band bandpass filter, a diplexer, a triplexer, a quadruplexer, a quinqueplexer, a sexaplexer, a septiplexer, and an octoplexer. For a demonstration, an eight-channel multiplexer with the second-order bandpass response have been designed and fabricated with microstrip in printed circuit board. The measured results are in good agreement with the full-wave simulation results.
Starting Page	1026
Ending Page	1033
Page Count	8
ISSN	17518725
Volume Number	12
e-ISSN	17518733
Issue Number	Issue 6, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/12/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0767
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2018-01-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Band-pass Filter Compact Microstrip Eight-channel Multiplexer Diplexer Distributed Coupling Technique Dual-mode Stub-loaded Resonator Forward-biased State Full-wave Simulation Independently Switchable PassBand Loading Effect Microstrip Resonator Multiplexing Equipment Nine-port Matching Network Octoplexer P-i-n Diode Passive Filter Passive Network Printed Circuit Printed Circuit Board Quadruplexer Quinqueplexer Resonator Filter Reverse-biased State Second-order Bandpass Response Septiplexer Sexaplexer Single-band Bandpass Filter Size Reduction Switchgear Triplexer Waveguide And Microwave Transmission Line Component
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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