A Novel Frequency-Selective Power Combiner/Divider in Single-Layer Substrate Integrated Waveguide Technology

Rosenberg, Uwe; Salehi, Mehdi; Børnemann, Jens; Mehrshahi, Esfandiar

doi:10.1109/lmwc.2013.2269039

Cited by 45 publications

(40 citation statements)

References 11 publications

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“…The coupling coefficients between pair of hybrids, indicated as , are directly obtained [cf. (4b) and (4c)] as (23) 6) The coupling matrices and are populated with the values of vectors (22) and (23) in order to reflect the chosen topology connections. Typically, has the values of the first and last elements of (21) for the coupling coefficients between the terminal resonators and external interfaces.…”

Section: ) the Polynomials Of The Transfer Function Of This Networkmentioning

confidence: 99%

“…2, which incorporates the power division and output phase distribution of a rat-race coupler and a two-pole Chebyshev filter. This model, similar to [23], has been designed with four resonators mutually coupled by inductive irises for easy manufacturing and enhanced power-handling capabilities. The negative coupling of Fig.…”

Section: A Compact Rat-race 2 2 Hybrid Power Splittermentioning

confidence: 99%

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Advanced Butler Matrices With Integrated Bandpass Filter Functions

Crestvolant

Martín-Iglesias

Lancaster

2015

IEEE Trans. Microwave Theory Techn.

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A novel class of Butler matrix with inherent bandpass filter (BPF) transfer functions is presented in this paper. The Butler matrix is the fundamental network to split and recombine the signal in multi-port power amplifiers, however, to suppress spurious frequencies generated by the amplifiers or to provide nearband rejection in order not to interfere with other transmission/receiving bands separate filtering is often required. Here, the traditional power division and phase distribution of the Butler matrix are included together with filtering selectivity into one single device based only on coupled resonators. An analytical synthesis procedure of the coupling matrix for 2 2 networks is presented here for the first time. The proposed solution has shown significant advantages in terms of size reduction compared to the traditional baseline consisting of a distribution network plus a bank of BPFs. The synthesis and design of a 2 2, 180 hybrid coupler at 10 GHz and a 4 4 Butler matrix with an equal-ripple four-pole Chebyshev bandpass characteristic centred at 12.5 GHz with 500-MHz bandwidth are described, confirming the synthesis technique proposed. Two models of the 4 4, one built with additive manufacturing and the other with milling, are also presented and compared. Experimental measurements are in good agreement with both simulations and theoretical expectations.Index Terms-Bandpass filters (BPFs), Butler matrix, circuit synthesis, multi-port power amplifier (MPA), power distribution.

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Section: ) the Polynomials Of The Transfer Function Of This Networkmentioning

confidence: 99%

Section: A Compact Rat-race 2 2 Hybrid Power Splittermentioning

confidence: 99%

Advanced Butler Matrices With Integrated Bandpass Filter Functions

Crestvolant

Martín-Iglesias

Lancaster

2015

IEEE Trans. Microwave Theory Techn.

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“…Recently, more literature recognizes that the SIW has gained a better privilege in the coupler design . Among them, a variety of SIW structures for the coupler design are presented.…”

Section: Introductionmentioning

confidence: 99%

Novel rat‐race coupler of arbitrary power division design using resonant substrate integrated waveguide cavity

Hong

Hsu

et al. 2018

Micro & Optical Tech Letters

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The contribution of this letter is to propose a novel rat‐race hybrid coupler of arbitrary power division design. The rat‐race coupler's arbitrary power division design is approached by using a resonant square substrate‐integrated waveguide (SIW) cavity. The employed SIW cavity is operated under the resonance of the combined TE102 and TE201 modes. Due to the nature of the square cavity, these two modes are termed degenerate modes which possess the same resonance frequencies but exhibit distinct field distributions. Theoretically, the cavity can be excited by an arbitrary combination of these two degenerate modes, and each of the modes' power is solitarily extracted by an SMA probe located at an adequate position. The microstrip together with the perpendicularly oriented slot are used to resonate the cavity with a designated combination of the degenerate modes. Sample experiments are conducted on 3 dB and 10 dB coupling designs with the circuits' performance evaluated by the coupling precision, isolations, and phase imbalances.

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“…It builds on a basic four-port element with four resonators where each of the ports is coupled to one resonator while each resonator is coupled to two adjacent ones. An initial validation of this principle has been introduced by a power-combiner design in SIW technology, which exhibits a rat-race characteristic with second-order filter functions for the semi-signal transmission paths [15]. This paper uses the same basic concept for the basic building block, but follows up with theory, design guidelines, extensions to multi-port power combiners/dividers, transmission zeros, and implementation.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the aim of this paper is to introduce the advantageous application of this novel approach [15] to multi-port power distribution/combination networks with inherent higher order filter characteristics. The complete subsystem is designed in one part without any interconnections (internal interfaces) of individual coupler components such as in current state-ofthe-art multi-port realizations with distributed individual components.…”

Section: Introductionmentioning

confidence: 99%

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

Rosenberg

Salehi

Amari

et al. 2014

IEEE Trans. Microwave Theory Techn.

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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.Index Terms-Filter synthesis, multiports, power combiner, power divider, substrate integrated waveguide (SIW), waveguide filters.

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A Novel Frequency-Selective Power Combiner/Divider in Single-Layer Substrate Integrated Waveguide Technology

Cited by 45 publications

References 11 publications

Advanced Butler Matrices With Integrated Bandpass Filter Functions

Advanced Butler Matrices With Integrated Bandpass Filter Functions

Novel rat‐race coupler of arbitrary power division design using resonant substrate integrated waveguide cavity

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

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