Passive circuit suitable for microwave and millimeter-wave integrated system

An integrated system and microwave circuit technology, applied in circuits, electrical components, waveguide-type devices, etc., can solve the problems that limit the application frequency and miniaturization development of multi-chip integrated packaging, and it is difficult to realize the integration and miniaturization of microwave and millimeter wave systems. Serious coupling problems, to achieve good signal interconnection effect, good signal isolation effect, good system function effect
CN106356604AActive Publication Date: 2017-01-25合肥芯谷微电子股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
合肥芯谷微电子股份有限公司
Publication Date
2017-01-25

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Abstract

Aiming at defects of an existing millimeter-wave circuit connection technology, the invention discloses a passive circuit suitable for a microwave and millimeter-wave integrated system. The passive circuit comprises a microwave circuit board, a microwave device and a microwave lead, wherein the working frequency of the microwave device is 30-60GHz, the impedance of the microwave lead is 40-60ohm, the loss of every millimeter unit of height of the microwave lead is smaller than 0.1dB, and the signal isolation degree is greater than 80dB. The microwave lead is a conductor for transmitting microwave and millimeter-wave signals. The microwave lead comprises vertical interconnected structure lines and a Y-type power divider. The passive circuit has the following beneficial effects: the passive circuit disclosed by the invention, based on a three-dimensional microwave and millimeter wave integrated circuit design, comprises a vertical coaxial structure and a micro coaxial power divider. The passive circuit disclosed by the invention has a good signal interconnection effect and a good signal isolation effect, the full-band signal interconnection insertion loss is smaller than 0.1dB / mm, the inter-chip signal isolation degree is greater than -65dB, and the electromagnetic energy leakage during signal transmission is smaller than -86dB.
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Description

technical field

[0001] The invention belongs to the field of microwave integrated circuits and systems, in particular to a passive circuit suitable for microwave and millimeter wave integrated systems. Background technique

[0002] In recent years, the development of microwave and millimeter-wave circuit integrated chips has greatly promoted the multi-function and miniaturization of microwave systems, and at the same time put forward higher requirements for chip integration and system packaging (SIP). Microwave and millimeter-wave transmission lines and feeders require Higher frequency, lower loss, and higher isolation. However, in existing microwave integrated circuits and system packages, open-cavity semi-open structures such as microstrips, coplanar waveguides, and gold wire bonding based on planar printed circuit board (PCB) technology are often used. When microwave signals are interconnected, the electromagnetic coupling is serious, the radiation loss is large, and the...

Claims

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