Manufacture of low-loss microwave circuits using HMIC technology

Chinoy, Percy B.; Jain, Naresh C.; Ping, Li; Goodrich, J.; Souchuns, C.

doi:10.1109/mwsym.1994.335544

Cited by 13 publications

(6 citation statements)

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“…Semiconductor devices are mounted by flip-chip attach for the varactor and Schottky diodes, and with normal and compensated wire-bond interconnects [57] for the pHEMTs and MMICs. The glass substrate is made using M/A-COM's proprietary passive glass microwave integrated circuit (GMIC) process [58], [59]. Silicon and glass are combined to create a low-cost circuit medium that has attractive properties for millimeter-wave design.…”

Section: A Overview-system and Circuit Architecturementioning

confidence: 99%

A compact manufacturable 76-77-GHz radar module for commercial ACC applications

Gresham

Jain

Budka

et al. 2001

IEEE Trans. Microwave Theory Techn.

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129

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The design and measured results of a single-substrate transceiver module suitable for 76-77-GHz pulsed-Doppler radar applications are presented. Emphasis on ease of manufacture and cost reduction of commercial millimeter-wave systems is employed throughout as a design parameter. The importance of using predictive modeling techniques in understanding the robustness of the circuit design is stressed. Manufacturing techniques that conform to standard high-volume assembly constraints have been used. The packaged transceiver module, including three waveguide ports and intermediate-frequency output, measures 20 mm 22 mm 8 mm. The circuit is implemented using discrete GaAs/AlGaAs pseudomorphic high electron mobility transistors (pHEMTs), GaAs Schottky diodes, and varactor diodes, as well as GaAs p-i-n and pHEMT monolithic microwave integrated circuits mounted on a low-cost 127-m-thick glass substrate. A novel microstrip-to-waveguide transition is described to transform the planar microstrip signal into the waveguide launch. The module is integrated with a quasi-optical antenna. The measured performance of both the component parts and the complete radar transceiver module is described.

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Section: A Overview-system and Circuit Architecturementioning

confidence: 99%

A compact manufacturable 76-77-GHz radar module for commercial ACC applications

Gresham

Jain

Budka

et al. 2001

IEEE Trans. Microwave Theory Techn.

Self Cite

129

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“…The second example considers a surge protector for commercial frequencies illustrating predictive design to provide the required bandpass response. For reference, the glass microwave integrated circuit (GMIC) cross section is shown in Appendix I [8], [9].…”

Section: Characterization Of Circuit Elementsmentioning

confidence: 99%

Methods of using commercial electromagnetic simulators for microwave and millimeter-wave circuit design and optimization

Jain

Onno

1997

IEEE Trans. Microwave Theory Techn.

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Efficient utilization of commercial electromagnetic (EM) simulators for design and optimization of microwave (MW) and millimeter-wave (MMW) circuits is achieved by classifying design problems into three categories-characterization of circuit elements, optimization of circuit elements, and creation of circuit element libraries such as scalable libraries. Practical aspects of the methods are illustrated by several examples. An equivalent circuit extraction technique suitable for n n n-port coupled structures is provided. The derived equivalent circuit is useful for extrapolating data, optimization, and deriving scalable models.

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“…This circuit was implemented in HMIC [8] and the diodes marked D1-D4 are integrated in HMIC while the limited diodes marked L1 and L2 are bonded on the HMIC. The limiter diodes were bonded and not implemented in the HMIC as the optimum I-region thicknesses required by the two limiter diodes are different from each other and from that of the integrated switch diodes D1-D4.…”

Section: Example 1: Hmic Switch Limitermentioning

confidence: 99%