On miniaturization isolation network of an all-ports matched impedance-transforming Marchand Balun

Chongcheawchamnan, M.; Ng, C.Y.; Bandudej, Kamorn; Worapishet, A.; Robertson, I.D.

doi:10.1109/lmwc.2003.814102

Cited by 20 publications

(18 citation statements)

References 5 publications

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“…As seen, only for θ = θ d curves are equal to unity and thus, the impedance matching is perfect. Besides, two singularities are observed, θ 1 and θ 2 , which are the poles of both functions in (15) and determine the frequency range where Figure 3. Real part of normalized image impedances for two shortand open-circuited MTL designed by means of (12) and (13) From (14), equations for S-parameters, (7a) and (7b), can be also simplified as…”

Section: Theoretical Study Of Open-and Short-circuited Wire-bonded Mtlsmentioning

confidence: 93%

“…A Wilkinson inphase power divider has been usually employed for the power splitter due to its broadband operation and good input/output match and isolation. The last condition improves the main Marchand balun drawback, its poor balanced output ports matching and isolation [15]. For the phase shifter section, short-circuited and open-circuited coupled lines have been employed in [10,11] but, there is lack of both a design procedure and analysis for wire-bonded multiconductor transmission lines (MTL).…”

Section: Introductionmentioning

confidence: 99%

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Generalized Analytical Design of Broadband Planar Baluns Based on Wire-Bonded Multiconductor Transmission Lines

Sanchez-Martinez¹,

Márquez-Segura²

2013

PIER

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Abstract-A novel generalized design procedure of broadband planar baluns based on wire-bonded multiconductor transmission lines (MTL) is presented hereby based on analytical equations. The proposed balun consists of two parts. The first one is an in-phase power divider, which equally splits the input power through its two outputs. The later are two MTLs with wire bonding between alternate conductors configured to introduce +90 and −90 degrees phase shift respectively, so that the balanced output signal has a 180 degree phase difference. In that sense, new closed-form design equations in order to calculate the design parameters of both multiconductor elements are obtained. These equations allow the proper dimensions of both MTLs to be computed irrespective of both the number of conductors and the coupling factor, and therefore, to determine the performance of the balun. The design procedure for wire-bonded MTL baluns has been assessed by means of full-wave electromagnetic simulations and by experimental work. In addition, the very good agreement between the theoretical results and measurements makes possible to define a time-saving design methodology.

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Section: Theoretical Study Of Open-and Short-circuited Wire-bonded Mtlsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Generalized Analytical Design of Broadband Planar Baluns Based on Wire-Bonded Multiconductor Transmission Lines

Sanchez-Martinez¹,

Márquez-Segura²

2013

PIER

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“…There are several types of baluns. For example, a Merchant-type balun [2] and a transformer-type balun [3] utilize coupling between metal wirings. When they are used on a chip, this coupling degrades insertion loss.…”

Section: Introductionmentioning

confidence: 99%

On-Chip Rat-Race Balun with Stubs for Matching Arbitrary Terminal Impedances

Goto

Kobayashi

Fujishima

2007

2007 Asia-Pacific Microwave Conference

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An on-chip balun is useful in millimeter-wave integrated circuits. However, conventional baluns are unsuitable for the on-chip application because the terminal impedance is generally standardized by 50Q, which is not necessarily applies on a chip. Thus, we propose a novel on-chip rat-race balun with stubs for matching arbitrary terminal impedances. The on-chip balun with stubs is designed by applying the optimization method of two-port filters, and the characteristic of the balun is verified by a three-dimensional electromagnetic simulation.

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“…There are some critical factors to be considered in the design, i.e., amplitude/phase balance, all-ports matching, and isolation between two unbalanced outputs. A variety of planar baluns have been developed so far, such as quarter-wave (/4) coupled line baluns [1], planar Marchand baluns [2][3][4], and planar transmission line baluns [5,6]. However, most of them require via hole or ground connection to construct a short circuit at the end of one line as usually required.…”

Section: Introductionmentioning

confidence: 99%

“…Several high power filters have been reported with TM-mode or dual mode for high frequency range [1][2][3][4]. TM 0n0 mode ring resonator carries only radial component of the current density, and there is current free in parallel to the edges of the disk patch.…”

Section: Introductionmentioning

confidence: 99%

Multisection vialess microstrip‐line balun with backside aperture and floating patches

Sun¹,

Zhu²,

Li³

et al. 2006

Micro & Optical Tech Letters

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On miniaturization isolation network of an all-ports matched impedance-transforming Marchand Balun

Cited by 20 publications

References 5 publications

Generalized Analytical Design of Broadband Planar Baluns Based on Wire-Bonded Multiconductor Transmission Lines

Generalized Analytical Design of Broadband Planar Baluns Based on Wire-Bonded Multiconductor Transmission Lines

On-Chip Rat-Race Balun with Stubs for Matching Arbitrary Terminal Impedances

Multisection vialess microstrip‐line balun with backside aperture and floating patches

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