Series-configuration of multi-line directional-coupler sections with improved coupling

Different from well known conventional designs of parallel-multi-line directional couplers, this paper presents methods to substantially increase the coupling of parallel-line coupler types. Higher coupling is achieved by a novel series configuration of two coupler elements, with moderate, individua...

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Bibliographic Details
Main Author: Schmiedel, H.
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Circuit properties
Couplings
Design engineering
Directional couplers
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Impedance
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Power dividers
Power transmission lines
Stripline
Transmission line matrix methods
Transmission line measurements
Transmission lines
Online Access:Request full text
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Description
Summary:Different from well known conventional designs of parallel-multi-line directional couplers, this paper presents methods to substantially increase the coupling of parallel-line coupler types. Higher coupling is achieved by a novel series configuration of two coupler elements, with moderate, individual coupling, and additional phasing lines in between these two coupling elements. Additional coupler elements allow for broadband designs. Besides high coupling, in principle this coupler arrangement yields substantial decoupling of output ports. This paper presents the basic for three-parallel-line systems and shows simulation results verified by measurements.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2004.1335888