C-band ultra-broadband multi-octave miniature directional coupler

A directional coupler and ultra-wideband technology, which is applied in the field of communication and radar, can solve the problems of directional coupler with narrow bandwidth, unsuitable for mass production, and high cost, and achieve the effect of wide working bandwidth, mass production, and low cost

Inactive Publication Date: 2015-12-09
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The directional coupler realized by the conventional design method and process has the disadvantages of narrow bandwidth, large volume, high cost and not suitable for mass production.

Method used

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  • C-band ultra-broadband multi-octave miniature directional coupler
  • C-band ultra-broadband multi-octave miniature directional coupler
  • C-band ultra-broadband multi-octave miniature directional coupler

Examples

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] combine figure 1 , figure 2 , the C-band multi-octave miniature directional coupler of the present invention includes a first surface-mounted 50-ohm impedance input, a first output port P1, a first asymmetrical stripline TL1, a first three-dimensional folded coupling stripline CL1, The second three-dimensional folded coupled stripline CL2, the third three-dimensional folded coupled stripline CL3, the second symmetrical stripline AL2, the fourth three-dimensional folded coupled stripline CL4, the fifth three-dimensional folded coupled stripline CL5, the sixth Three-dimensional folded coupling stripline CL6, the second surface-mounted 50-ohm impedance input, the second output port P2, the third surface-mounted 50-ohm impedance input, the third output port P3, the third asymmetrical stripline TL3, the second Seven-dimensional folded coupled stripline C...

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Abstract

The invention discloses a C-waveband ultra-wideband multi-octave miniature directional coupler, which comprises four 50ohm input and output ports, an asymmetrical strip line, a symmetrical strip line, a three-dimensional folded-structured coupling strip line and a grounding plate, wherein the four 50ohm input and output ports are installed on the surface of the C-waveband ultra-wideband multi-octave miniature directional coupler. The structure is realized by adopting a multilayer high-frequency low-loss medium-laminated process technology, and the C-waveband ultra-wideband multi-octave miniature directional coupler disclosed by the invention has the advantages of wide working frequency band, small size, high reliability, excellent electrical performance, small through and coupling-port amplitude derivation, good temperature stability, good heat-radiating performance, simple structure, high finished-product ratio, good mass-production electrical-performance index consistency, low cost, convenience in installation and use and the like and can be widely used in corresponding-frequency communications and radars as well as wireless systems.

Description

technical field [0001] The invention relates to the field of communication and radar, in particular to a C-band ultra-wideband multi-octave miniature directional coupler used in the field of communication and radar. Background technique [0002] Microwave directional couplers are used in radio frequency and microwave systems for signal power distribution and synthesis, power sampling and detection, balanced amplifiers, analog and digital phase shifters, analog and digital attenuators, etc. A typical microwave directional coupler is essentially a four-port network that divides the input signal into two output signals with a specific ratio of power within a specific frequency range. Similarly, the reverse use has the effect of power synthesis. The directional coupler realized by the conventional design method and process has the disadvantages of narrow bandwidth, large volume, high cost and not suitable for mass production. Ultra-wideband multi-octave miniature directional co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/18
Inventor 戴永胜吴迎春吴建星李旭韦晨君郭风英陈建锋范小龙李雁方思慧邓良施淑媛罗鸣朱丹陈龙冯辰辰顾家
Owner NANJING UNIV OF SCI & TECH
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