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Miniaturization microstrip balance-unbalance

A technology of microstrip balun and microstrip line, which is applied in the structural form of radiating elements, antenna grounding devices, electrical components, etc., can solve the problems of large area of ​​microstrip balun, reduce its own area, improve transmission coefficient, Enhance the effect of coupling

Inactive Publication Date: 2015-09-09
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing microstrip balun itself is too large, the present invention provides a miniaturized microstrip balun

Method used

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  • Miniaturization microstrip balance-unbalance
  • Miniaturization microstrip balance-unbalance
  • Miniaturization microstrip balance-unbalance

Examples

Experimental program
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Embodiment Construction

[0021] A miniaturized microstrip balun, including a conductive plate 1, a dielectric substrate 2, and a grounding plate;

[0022] Wherein, the conductive plate 1, the dielectric substrate 2, and the grounding plate are sequentially stacked as a whole from top to bottom;

[0023] An L-shaped short-circuit microstrip line 3 with a length of 1 / 4 wavelength is arranged on the front of the conductive plate 1; the front end of the L-shaped short-circuited microstrip line 3 is flush with the front edge of the conductive plate 1;

[0024] A U-shaped microstrip line 4 is arranged at the rear of the conductive plate 1; both ends of the U-shaped microstrip line 4 are flush with the rear edge of the conductive plate 1;

[0025] The middle part of the grounding plate is etched with an I-shaped gap 5 that runs through the front and back; the I-shaped gap 5 separates the grounding plate into a symmetrical left grounding plate 6 and a right grounding plate 7;

[0026] Between the right end o...

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Abstract

The invention relates to a microstrip balance-unbalance (BALUN), concretely a miniaturization microstrip BALUN, aiming to solve the problem that a present BALUN has a too large area. The microstrip BALUN comprises a current conducting plate, a medium substrate and a ground plate which are successively laminated from top to bottom to be integrated; the front portion of the current conducting plate is provided with an L-shaped short circuit microstrip line with a length of 1 / 4 wavelength; the front end of the L-shaped short circuit microstrip line is flush with the front plate edge of the current conducting plate, and the rear portion of the current conducting plate is provided with a U-shaped microstrip line; two ends of the U-shaped microstrip line are both flush with the rear plate edge of the current conducting plate; the central section of the panel of the ground plate is etched with a penetrating I-shaped slit. With a bandwidth of 100.9%, an area of only 0.1 lambda* 0.1 lambda, and amplitude phase imbalance in a work frequency range respectively of 0.6 dB and 3 degree, the microstrip BALUN is suitable for equipment such as a microwave balanced mixer, a frequency multiplication device, a push pull amplifier, an antenna, etc.

Description

technical field [0001] The invention relates to a microstrip balun, in particular to a miniaturized microstrip balun. Background technique [0002] Balun (Balance-unbalance, BALUN), also known as balanced-unbalanced converter, its function is to convert signals between unbalanced circuit structure and balanced circuit structure, so it is widely used in microwave balanced mixers, frequency multipliers devices such as amplifiers, push-pull amplifiers, and antennas. Among the current various baluns, the microstrip balun has attracted extensive attention due to its ease of integration with circuits and planar printed antennas. Such as figure 1 As shown, the existing microstrip balun includes a conductive plate 1, a dielectric substrate 2, and a grounding plate 10. On the conductive plate 1, an open-circuit microstrip line 11 with a length of 1 / 2 wavelength and a mutually symmetrical left microstrip line 12 are respectively arranged. and the right microstrip line 13. During w...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/48H01Q13/08
Inventor 张文梅王雯雯陈新伟李莉耿彦峰韩丽萍
Owner SHANXI UNIV
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