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Novel multiplexer topologies based on all-resonator structures

Novel multiplexer topologies based on all-resonator structures

Shang, Xiaobang, Wang, Yi, Xia, Wenlin and Lancaster, M.J. (2013) Novel multiplexer topologies based on all-resonator structures. IEEE Transactions on Microwave Theory and Techniques, 61 (11). pp. 3838-3845. ISSN 0018-9480 (doi:

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This paper presents two novel multiplexer topologies based on all-resonator structures. Such all-resonator structures remove the need for conventional transmission-line-based splitting networks. The first topology is a diplexer with transmission zeros in the guard band, shared by both channels. These transmission zeros are generated by introducing a cross coupling in a quadruplet in resonators common to both channels. A twelfth-order diplexer with a pair of transmission zeros is presented here as an example. The second topology is a multiplexer with a bifurcate structure that limits the connections to any resonator to three or less, regardless of the number of output channels. A sixteenth-order four-channel multiplexer is presented as an example. Both topologies have been demonstrated at $X$ -band using waveguide technology. Good agreements between measurements and simulations have been achieved.

Item Type: Article
Uncontrolled Keywords: couplings, filtering theory, multiplexing, passband, resonant frequency, topology, transmission line matrix methods, coupling matrix optimization, diplexer, multiplexer, resonator filters
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments: School of Engineering
School of Engineering > Department of Computer & Communications Engineering
School of Engineering > Mobile & Wireless Communications Research Laboratory
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Last Modified: 14 Oct 2016 09:25

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