A coplanar-to-microstrip transition for W-band circuit fabrication with 100- mu m-thick GaAs wafers

Golja, B.; Sequeira, H. B.; Duncan, S.; Mendenilla, G.; Byer, N. E.

doi:10.1109/75.196031

Cited by 11 publications

(4 citation statements)

References 3 publications

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“…9. The microstrip and CPW are interfaced through a single via connecting the signal traces with the transmission lines (TLs) sharing the same ground plane [55], see Fig. 9.…”

Section: Common Ground Microstrip-to-coplanar Waveguide Transitionmentioning

confidence: 99%

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Variable-Fidelity Design Optimization of Microwave Devices Using Multi-Dimensional Cauchy Approximation and Coarsely Discretized Electromagnetic Models

Kozieł

Ogurtsov²,

Bakr³

2010

PIER B

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Application of multi-dimensional Cauchy approximation and coarse-discretization electromagnetic (EM) models to surrogatebased optimization of microwave structures is discussed. Space mapping is used as an optimization engine with the surrogate model constructed as a Cauchy approximation of the coarsely discretized device EM model. The proposed approach allows us to perform computationally efficient optimization of microwave structures without using circuit-equivalent coarse models traditionally exploited by space mapping algorithms. We demonstrate our technique through design of a range of microwave devices, including filters, antennas, and transitions. Comprehensive numerical verification of the proposed methodology is carried out with satisfactory designs obtained -for all considered devices -at a computational cost corresponding to a few full-wave simulations.

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“…9. The microstrip and CPW are interfaced through a single via connecting the signal traces with the transmission lines (TLs) sharing the same ground plane [55], see Fig. 9.…”

Section: Common Ground Microstrip-to-coplanar Waveguide Transitionmentioning

confidence: 99%

“…9. Unlike in [55], the design geometry in our example is defined with the CPW ending on the rectangular slot and the straight barrel via with no pads. The lengths of the input TLs are 15.0 mm each.…”

Section: Common Ground Microstrip-to-coplanar Waveguide Transitionmentioning

confidence: 99%

Variable-Fidelity Design Optimization of Microwave Devices Using Multi-Dimensional Cauchy Approximation and Coarsely Discretized Electromagnetic Models

Kozieł

Ogurtsov²,

Bakr³

2010

PIER B

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“…One is by physical contact and the other is by electromagnetic coupling. Via-holes, bonding wires, or abrupt discontinuities in the conductor are usually required in physical contact transitions [4], [5]. In multilayer circuit design, via-holes are often introduced between the outer metal layer and the inner metal layer for circuit measurement and interconnection with other circuits.…”

Section: Introductionmentioning

confidence: 99%

A Novel Transition-Included Multilayer Filter

Huang

Lin

Wang

et al. 2009

IEEE Trans. Microwave Theory Techn.

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A novel transition-included multilayer filter is proposed with the associated electromagnetically coupled transition from conductor-backed coplanar waveguide to stripline designed as a part of the bandpass filter. Specifically, a filter equivalent-circuit model is introduced with the transformer turn ratio to specify the impedance-transformation characteristic of the transition. The proposed transition-included multilayer filter is then designed by simultaneously taking both embedded stripline resonator circuits and associated transitions into consideration. Being designed along with the transition, the implemented filter occupies a size only half of the conventional filter while still achieving the same specifications. The implemented filter does not require bond wires or air bridges, thereby reducing the response shift caused by misalignment in fabrication. Finally, the measurement and simulation results are presented and good agreement between them is observed.

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“…The distance between the probe contact region and the via hole is 150 µm, the via hole diameter is 15 µm, and the distance from the merged ground plane to the via hole is 50 µm. It is noted that this transition between CPW and microstrip and/or inverted microstrip has been successfully used over a wide frequency range [11], [12]. It has been reported that resonances within the CPW to microstrip transition can be established if the dimensions are large relative to the wavelength [13].…”

Section: Introductionmentioning

confidence: 99%

Multiple modes on embedded inverted microstrip lines

Ponchak

Tentzeris²

Digest of Papers. 2005 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, 2005.

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Embedded transmission lines are commonly used in silicon radio frequency integrated circuits to reduce insertion loss and decrease circuit size. In this paper, experimental measurements and Finite Difference Time Domain (FDTD) analysis are used to show that embedded inverted microstrip lines are not suitable for use above a few GHz.Index Terms -microstrip, inverted microstrip, MMIC, multi-layer circuits.

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A coplanar-to-microstrip transition for W-band circuit fabrication with 100- mu m-thick GaAs wafers

Cited by 11 publications

References 3 publications

Variable-Fidelity Design Optimization of Microwave Devices Using Multi-Dimensional Cauchy Approximation and Coarsely Discretized Electromagnetic Models

Variable-Fidelity Design Optimization of Microwave Devices Using Multi-Dimensional Cauchy Approximation and Coarsely Discretized Electromagnetic Models

A Novel Transition-Included Multilayer Filter

Multiple modes on embedded inverted microstrip lines

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