A 3D hybrid integration methodology for terabit transceivers

2016 46th European Microwave Conference (EuMC)

et al. 2016

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This paper presents rectangular waveguide-tocoplanar waveguide (CPW) transitions at U-band (40 -60 GHz) using E-plane probe and wire bonding. The designs of CPWs based on quartz substrate with and without aluminum cover are explained. The single and double layer rectangular waveguideto-CPW transitions using E-plane probe and wire bonding are designed. The proposed rectangular waveguide-to-CPW transition using wire bonding can provide 10 GHz bandwidth at Uband and does not require extra CPWs or connections between CPWs and chips. A single layer rectangular waveguide-to-CPW transition using E-plane probe with aluminum package has been fabricated and measured to validate the proposed transitions. To the authors' best knowledge, this is the first time that a wire bonding is used as a probe for rectangular waveguide-to-CPW transition at U-band.

Section: Design Procedures Of Coplanar Waveguidementioning

confidence: 99%

Rectangular waveguide-to-coplanar waveguide transitions at U-band using e-plane probe and wire bonding

2016 46th European Microwave Conference (EuMC)

et al. 2016

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“…It also makes CPW and CPS versatile for designing components and chips based on different substrates and packaging them into a system. In communication systems, CPW in a ground-signal-ground (GSG) configuration is normally used for designing amplifiers [2][3][4][5], frequency doublers [6,7], mixers [8,9], power DACs (PDACs) [10,11] and interposer connections between different components [12,13]. Being different from CPW, CPS as well as ACPS are in a ground-signal (GS) configuration and they are used for designing baluns [14][15][16][17], antennas [18][19][20], and the electrodes of Mach-Zehnder modulators (MZMs) [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Ultra-wideband coplanar waveguide-to-asymmetric coplanar stripline transition from DC to 165 GHz

Int. J. Microw. Wireless Technol.

2018

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This paper presents an ultra-wideband coplanar waveguide (CPW)-to-asymmetric coplanar stripline (ACPS) transition based on aluminum nitride (AlN) substrate. The concepts of designing CPW, ACPS, and CPW-to-ACPS transition are explained. In order to suppress parasitic modes, vias going through AlN substrate are added along the ground traces. The signal trace is tapered out and chamfered to reduce the reflection caused by the termination of ground trace. The CPW-to-ACPS transition is designed, fabricated, and measured in a back-to-back configuration. The fabricated CPW-to-ACPS transition can provide a bandwidth of 165 GHz with an associated insertion loss of 3 dB.

“…The bandwidth of the interposer should be at least 64 GHz in order to support a 64 Gbaud operation rate of the transceiver. A methodology of 3D hybrid integration scheme for PANTHER terabit transceiver was reported in [4].…”

Section: Introductionmentioning

confidence: 99%

Coplanar transitions based on aluminum nitride interposer substrate for terabit transceivers

2017 47th European Microwave Conference (EuMC)

et al. 2017

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This paper presents two types of coplanar transitions based on aluminum nitride (AlN) substrate for interposer designs of terabit transceivers. The designs of coupled coplanar waveguide (CCPW), coupled line, coplanar waveguide (CPW), and coplanar stripline (CPS) based on AlN substrate are explained. The effects of absorber layer and wire bonding bridges are described. Two types of coplanar transitions are designed and simulated in back-to-back configuration with wire bonding bridges. When driven by differential signal pair, the proposed CCPW-to-coupled line transition in back-to-back configuration with wire bonding bridges achieves a simulated return loss of 11 dB and insertion loss of 2 dB up to 110 GHz. As for single-ended signals, a CPW-to-CPS transition in back-to-back configuration with wire bonding bridges has been designed, fabricated, and measured. The fabricated CPW-to-CPS transition can provide a-3 dB transmission bandwidth up to 80 GHz with associated return loss better than 12 dB.