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Balanced-to-unbalanced (BALUN) transformer

A balanced transformer and balanced technology, applied in the field of electronics, can solve problems such as asymmetric geometry, increased metal layer voltage loss, and limited device operating bandwidth

Active Publication Date: 2019-05-03
ARM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, certain geometries create significant interwinding capacitance, which can limit the operating bandwidth of the device
Additionally, center taps in balun transformers are often placed in undesired locations, resulting in asymmetrical geometries, added metal layers, or additional direct current (DC) voltage loss due to high resistance

Method used

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  • Balanced-to-unbalanced (BALUN) transformer
  • Balanced-to-unbalanced (BALUN) transformer
  • Balanced-to-unbalanced (BALUN) transformer

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The various methods, systems, apparatus, and apparatus described herein generally provide for use with balun (balun) transformers.

[0023] While the invention is capable of embodiments in many different forms, specific embodiments are shown in the drawings and will be described in detail herein, it should be understood that the disclosure is to be considered as an illustration of the principles of the invention and is not intended to be limiting. For the specific embodiment shown and described. In the following description, the same reference numerals may be used to describe the same, similar or corresponding parts in the several views of the drawings.

[0024] In this document, relational terms such as first and second, top and bottom, etc. may be used only to distinguish one entity or action from another without necessarily requiring or implying any actual relationship between these entities or actions. this relationship or order. The terms "comprises", "comprises"...

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PUM

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Abstract

The invention relates to a balanced-to-unbalanced (balun) transformer which may include two metal layers on a substrate, a first winding following a first winding path, and a second winding followinga second winding path, where each winding is formed in one or more of the two metal layers. The winding paths may include winding segments each disposed around a central axis of the balun transformer,where connectors join adjacent winding segments such that the winding paths are continuous between ends of the windings. The second winding path may be interwoven with, but independent from, the first winding path to form a resultant pattern that is substantially symmetrical. The second winding may include a number, n, of sub-windings, where n > 1 such that a resultant number of winding segmentsof the second winding is greater than a resultant number of winding segments of the first winding by a factor of n.

Description

technical field [0001] The present disclosure relates to the field of electronic technology. More specifically, the present disclosure relates to a balanced-unbalanced (balun) transformer. Background technique [0002] Generally, a transformer includes an electronic device that transfers electrical energy from one circuit to another (or circuits) to increase (ie, "step up") or decrease (ie, "step down") voltage. The transfer of energy can be achieved by electromagnetic mutual induction, ie, a time-varying current through the primary conductor produces a time-varying magnetic flux through the secondary conductor. Due to Faraday's law of induction, the changing magnetic flux creates an electromotive force in the secondary conductor, which produces an electric current. The voltage in the secondary conductor is usually provided by the ratio of the number of windings in the secondary conductor to the number of windings in the primary conductor multiplied by the voltage of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F38/00H01F27/28H01F27/29H01F41/00H01F41/04
CPCH01F2027/2819H01F27/2804H01F17/0006H01F27/29H01L23/5227H01L23/528H01F2017/0046H01F2017/0073H01F41/041H01F2027/2809
Inventor 尼尔·莱斯利·小卡兰卡道格拉斯·罗布尔
Owner ARM LTD