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Microwave Integrated Circuit and Its Planar Coupler

A coupler and plane technology, applied in the microwave field, can solve the problems of crossover wiring and large size of the coupler, and achieve the effect of solving the crossover wiring problem, high port isolation, and easy to manufacture.

Active Publication Date: 2019-05-31
SPACE STAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a microwave integrated circuit and its planar coupler, which solves the technical problems of the coupler crossing lines and large size in the prior art

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  • Microwave Integrated Circuit and Its Planar Coupler

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Embodiment 1

[0025] refer to figure 1 , in one embodiment, the planar coupler may include a resonant mechanism 100 and an impedance matching mechanism (not shown) connected. Wherein, the resonance mechanism 100 may include an inner ring 120 and an outer ring 110 . The inner ring 120 is disposed in the area surrounded by the outer ring 110 , and the inner ring 120 and the outer ring 110 are connected by a first transmission line 101 .

[0026] The inner ring 120 , the outer ring 110 and the first transmission line 101 form at least two loops, and the length of each loop is a medium wavelength corresponding to an operating frequency point of the planar coupler.

[0027] The impedance matching mechanism includes at least two arc-shaped impedance transformers 210 . Each of the impedance converters 210 corresponds to one of the loops. Each of the impedance converters 210 is connected to the corresponding outer loop 110 through a second transmission line 201 .

[0028] In the above-mentioned...

Embodiment 2

[0047] Corresponding to the above-mentioned planar coupler, this embodiment proposes a microwave integrated circuit, including any one of the above-mentioned planar couplers. Since the microwave integrated circuit includes any one of the above-mentioned planar couplers, the microwave integrated circuit has all the advantages of the above-mentioned planar couplers, so details will not be repeated here.

[0048] In addition, the above-mentioned planar coupler can also be applied in other fields except microwave integrated circuits, and is not limited to microwave integrated circuits.

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Abstract

The invention belongs to the technical field of microwaves and provides a microwave integrated circuit and a planar coupler thereof. The planar coupler comprises a resonant mechanism and an impedance matching mechanism which are connected. The resonant mechanism includes an inner ring and an outer ring, the inner ring is arranged in a region surrounded by the outer ring, and the inner ring and the outer ring are connected through a first transmission line. The inner ring, the outer ring, and the first transmission line define at least two loops. The length of each loop is a dielectric wavelength corresponding to one operating frequency point of the planar coupler. The impedance matching mechanism comprises at least two arc impedance transformers. Each impedance transformer corresponds to a loop. The impedance transformers are connected to the outer ring through a second transmission line. The planar coupler can be effectively reduced in the radial dimension compared with a linear impedance transformer in the prior art, solves the problem of crossover in the microwave integrated circuit, enables a pair of intersecting lines to maintain greatest degree of isolation while transmitting respective signals.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a microwave integrated circuit and a planar coupler thereof. Background technique [0002] In microwave integrated circuits, it is often necessary to divide one microwave power into several circuits in proportion. This is the problem of power distribution, and the components that realize this function are called power distribution components, that is, couplers. With the development of monolithic microwave integrated circuit technology, more and more cross lines appear in microwave integrated circuits. Some of the existing couplers are single-way couplers, which cannot be used to solve the problem of cross-wiring in microwave circuits; the other part of the couplers is realized by cascading two branch line couplers, which is relatively large in size. Not practical in microwave circuits. [0003] Therefore, it is necessary to find a planar coupler that allows a pair of crossed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 赵卫标董涛尹建勇王喆刘尚强
Owner SPACE STAR TECH CO LTD
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