Analytical synthesis of microwave multiport networks

García-Lampérez, Alejandro; Salazar‐Palma, Magdalena; Sarkar, Tapan K.

doi:10.1109/mwsym.2004.1336009

Cited by 45 publications

(33 citation statements)

References 10 publications

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“…This "N + 3" coupling matrix M is defined by blocks including conventional N ×N coupling matrix M n [7]. N is the total number of resonators of the diplexer.…”

Section: Diplexer Responses Based On Coupling Matrixmentioning

confidence: 99%

“…Group delay characteristics and isolation (S 23 ) of diplexer network are not given in [7]. Assuming a lossless overall diplexer, the unitary condition of the scattering matrix imposes that …”

Section: Diplexer Responses Based On Coupling Matrixmentioning

confidence: 99%

“…Some interesting diplexers design without distribution networks have appeared in the recent literatures [6][7][8][9][10][11][12]. A new topology of the diplexer with the common port directly connected to two filters was proposed and synthesized in [7], although no design example was given. Figure 1(a) shows this new structure proposed in [7].…”

Section: Introductionmentioning

confidence: 99%

“…A new topology of the diplexer with the common port directly connected to two filters was proposed and synthesized in [7], although no design example was given. Figure 1(a) shows this new structure proposed in [7]. In [6], the diplexers employing an extra resonant junction [an extra resonator in addition to the channel filters, shown in Figure 1(b)] has been synthesized based on the evaluation of the characteristic polynomials of the diplexer and similarity-transformation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of Microwave Resonator Diplexers Using Linear Frequency Transformation and Optimization

Wang¹,

Xu²,

Wang³

et al. 2012

PIER

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Abstract-This paper presents a method for synthesizing coupled resonator diplexers composed of T X and RX filters (two types of junctions connecting the T X and RX filters are considered). For the first junction type, the common port is directly coupled to the first resonator of the T X and RX filters, respectively. For the second junction type, common node is realized by adding an extra resonator besides those of the T X and RX filters. The method is based on the evaluation of the characteristic polynomials of the diplexer using the proposed linear frequency transformation and well-established method, and then the "N + 3" coupling matrix of overall diplexer can be obtained using hybrid optimization methods. Two diplexers have been designed and fabricated to validate the proposed method.

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“…This "N + 3" coupling matrix M is defined by blocks including conventional N ×N coupling matrix M n [7]. N is the total number of resonators of the diplexer.…”

Section: Diplexer Responses Based On Coupling Matrixmentioning

confidence: 99%

Section: Diplexer Responses Based On Coupling Matrixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of Microwave Resonator Diplexers Using Linear Frequency Transformation and Optimization

Wang¹,

Xu²,

Wang³

et al. 2012

PIER

View full text Add to dashboard Cite

show abstract

“…So far, a variety of configurations were proposed to implement diplexers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. A well designed diplexer should have compact circuit size, low cost and high performance.…”

Section: Introductionmentioning

confidence: 99%

Design of Compact Quad-Channel Diplexer Using Quad-Mode Stub-Loaded Resonators

Lin¹,

Zhao²,

Wu³

et al. 2015

PIER Letters

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Abstract-In this paper, a compact quad-channel diplexer utilizing quad-mode stub-loaded resonators (QMSLRs) is proposed. The proposed quad-channel diplexer is composed of two dual-band bandpass filters (BPFs) based on QMSLRs and source-load coupling lines. Due to the symmetry of the proposed quad-mode resonator, its resonance characteristics are analyzed by using the even-odd-mode method twice. All four modes equivalent circuits of the resonator are quarter wavelength resonators, so the circuit size can be very compact, and the first resonance frequencies is three times of the fundamental ones. Stub-to-stub coupling is introduced to split two identical resonance modes, which is in favor of implementing dual-band BPF by using a single quad-mode resonator. By tuning the corresponding physical dimensions of the stubs, the resonant modes can be individually adjusted. The source-load coupling lines are properly designed to provide appropriate external coupling for the passbands and high isolation level between channels. For demonstration, a quad-channel diplexer (0.9/1.2 GHz at Load 1 and 1.5/1.8 GHz at Load 2) using the quad-mode resonator is designed, fabricated and measured. The simulated and measured results with good agreement are presented.

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Design and implementation of compact diplexers using dual-mode cavities

Ezzeddine

Frigui

Bila

et al. 2013

Int J RF and Microwave Comp Aid Eng

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International audienceIn this paper, the design of compact diplexers with dual-mode cavities for satellite payloads is detailed. Compact diplexers are composed of coupled resonators without additional waveguide element, leading to a more compact architecture. Two topologies are first implemented and compared with a standard manifold output diplexer, in terms of electrical performances, compactness, and power handling. Hardware prototypes are fabricated and measured for experimental verification. A third topology is finally introduced for the design of noncontiguous diplexers

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Analytical synthesis of microwave multiport networks

Cited by 45 publications

References 10 publications

Synthesis of Microwave Resonator Diplexers Using Linear Frequency Transformation and Optimization

Synthesis of Microwave Resonator Diplexers Using Linear Frequency Transformation and Optimization

Design of Compact Quad-Channel Diplexer Using Quad-Mode Stub-Loaded Resonators

Design and implementation of compact diplexers using dual-mode cavities

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