Compact Multi-Port Power Combination/Distribution With Inherent Bandpass Filter Characteristics

Compact multi-port power combiners and dividers with filter characteristics are introduced. These components advantageously combine the functions of power distribution and filtering in a single component, thus reducing the number of components in a system and improving overall system performance. Th...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2014-11, Vol.62 (11), p.2659-2672
Main Authors: Rosenberg, Uwe, Salehi, Mehdi, Amari, Smain, Bornemann, Jens
Format: Article
Language:English
Subjects:
Chebyshev approximation
Couplings
Filter synthesis
Inverters
multiports
Ports (Computers)
power combiner
Power distribution
power divider
Power dividers
Scattering
substrate integrated waveguide (SIW)
waveguide filters
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Summary:Compact multi-port power combiners and dividers with filter characteristics are introduced. These components advantageously combine the functions of power distribution and filtering in a single component, thus reducing the number of components in a system and improving overall system performance. The design principle, which is entirely based on filter theory, is first presented for a symmetric filtering four-port combiner/divider and is then extended to an eight-port network. Measurements on a symmetric all-metal waveguide four-port prototype show excellent agreement with simulations and validate the general design approach. The experimental response of an asymmetric substrate integrated waveguide eight-port network agrees reasonably well with simulations and demonstrates that the basic four-port element can be extended to very compact multi-port combiner/dividers to cope with a variety of systems requirements.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2014.2361345